linux-2.6-microblaze.git
17 months agodt-bindings: display: meson-vpu: add third DPI output port
Neil Armstrong [Tue, 30 May 2023 07:38:08 +0000 (09:38 +0200)]
dt-bindings: display: meson-vpu: add third DPI output port

Add third port corresponding to the ENCL DPI encoder used to connect
to DSI or LVDS transceivers.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512-amlogic-v6-4-upstream-dsi-ccf-vim3-v5-7-56eb7a4d5b8e@linaro.org
17 months agodt-bindings: display: add Amlogic MIPI DSI Host Controller bindings
Neil Armstrong [Tue, 30 May 2023 07:38:07 +0000 (09:38 +0200)]
dt-bindings: display: add Amlogic MIPI DSI Host Controller bindings

The Amlogic G12A, G12B & SM1 SoCs embeds a Synopsys DW-MIPI-DSI
transceiver (ver 1.21a) with a custom glue managing the IP resets,
clock and data inputs similar to the DW-HDMI Glue on the same
Amlogic SoC families.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512-amlogic-v6-4-upstream-dsi-ccf-vim3-v5-6-56eb7a4d5b8e@linaro.org
17 months agodrm/bridge: tc358762: Add reset GPIO support
Marek Vasut [Tue, 30 May 2023 19:28:05 +0000 (21:28 +0200)]
drm/bridge: tc358762: Add reset GPIO support

Add reset GPIO support. The reset GPIO is cleared after supply regulator
was enabled, and set before supply regulator is disabled.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530192805.648646-2-marex@denx.de
17 months agodt-bindings: display: bridge: tc358762: Document reset-gpios
Marek Vasut [Tue, 30 May 2023 19:28:04 +0000 (21:28 +0200)]
dt-bindings: display: bridge: tc358762: Document reset-gpios

This chip has one reset GPIO input, document it. The reset GPIO
is optional as it is sometimes not connected on some hardware.

Signed-off-by: Marek Vasut <marex@denx.de>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530192805.648646-1-marex@denx.de
17 months agodrm/i915: Implement dedicated fbdev I/O helpers
Thomas Zimmermann [Tue, 30 May 2023 15:12:28 +0000 (17:12 +0200)]
drm/i915: Implement dedicated fbdev I/O helpers

Implement dedicated fbdev helpers for framebuffer I/O instead
of using DRM's helpers. Use an fbdev generator macro for
deferred I/O to create the fbdev callbacks. i915 was the only
caller of the DRM helpers, so remove them from the helper module.

i915's fbdev emulation is still incomplete as it doesn't implement
deferred I/O and damage handling for mmaped pages.

v4:
* generate deferred-I/O helpers
* use initializer macros for fb_ops
v2:
* use FB_IO_HELPERS options

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-14-tzimmermann@suse.de
17 months agodrm/fbdev-generic: Implement dedicated fbdev I/O helpers
Thomas Zimmermann [Tue, 30 May 2023 15:12:27 +0000 (17:12 +0200)]
drm/fbdev-generic: Implement dedicated fbdev I/O helpers

Implement dedicated fbdev helpers for framebuffer I/O instead
of using DRM's helpers. Use an fbdev generator macro for
deferred I/O to create the callbacks. Fbdev-generic was the
only caller of the DRM helpers, so remove them from the helper
module.

v4:
* generate deferred-I/O helpers
* use initializer macros for fb_ops
v2:
* use FB_SYS_HELPERS_DEFERRED option

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Sui Jingfeng <suijingfeng@loongson.cn>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-13-tzimmermann@suse.de
17 months agodrm/msm: Use regular fbdev I/O helpers
Thomas Zimmermann [Tue, 30 May 2023 15:12:26 +0000 (17:12 +0200)]
drm/msm: Use regular fbdev I/O helpers

Use the regular fbdev helpers for framebuffer I/O instead of DRM's
helpers. Msm does not use damage handling, so DRM's fbdev helpers
are mere wrappers around the fbdev code.

By using fbdev helpers directly within each DRM fbdev emulation,
we can eventually remove DRM's wrapper functions entirely.

Msm's fbdev emulation has been incomplete as it didn't implement
damage handling. Partilly fix this by implementing damage handling
for write and draw operation. It is still missing for mmaped pages.

v4:
* use initializer macros for struct fb_ops
* partially support damage handling
v2:
* use FB_SYS_HELPERS option

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Abhinav Kumar <quic_abhinavk@quicinc.com>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Sean Paul <sean@poorly.run>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-12-tzimmermann@suse.de
17 months agodrm/fb-helper: Export helpers for marking damage areas
Thomas Zimmermann [Tue, 30 May 2023 15:12:25 +0000 (17:12 +0200)]
drm/fb-helper: Export helpers for marking damage areas

Export drm_fb_helper_damage() and drm_fb_helper_damage_range(), which
handle damage areas for fbdev emulation. This is a temporary export
that allows to move the DRM I/O helpers for fbdev into drivers. Only
fbdev-generic and i915 need them. Both will be updated to implement
damage handling by themselves and the exported functions will be removed.

v4:
* update interfaces

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-11-tzimmermann@suse.de
17 months agodrm/tegra: Use regular fbdev I/O helpers
Thomas Zimmermann [Tue, 30 May 2023 15:12:24 +0000 (17:12 +0200)]
drm/tegra: Use regular fbdev I/O helpers

Use the regular fbdev helpers for framebuffer I/O instead of DRM's
helpers. Tegra does not use damage handling, so DRM's fbdev helpers
are mere wrappers around the fbdev code.

By using fbdev helpers directly within each DRM fbdev emulation,
we can eventually remove DRM's wrapper functions entirely.

v4:
* use initializer macros for struct fb_ops
v2:
* use FB_SYS_HELPERS option

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Mikko Perttunen <mperttunen@nvidia.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-10-tzimmermann@suse.de
17 months agodrm/omapdrm: Use regular fbdev I/O helpers
Thomas Zimmermann [Tue, 30 May 2023 15:12:23 +0000 (17:12 +0200)]
drm/omapdrm: Use regular fbdev I/O helpers

Use the regular fbdev helpers for framebuffer I/O instead of DRM's
helpers. Omapdrm does not use damage handling, so DRM's fbdev helpers
are mere wrappers around the fbdev code.

By using fbdev helpers directly within each DRM fbdev emulation,
we can eventually remove DRM's wrapper functions entirely.

v4:
* use initializer macros for struct fb_ops
v2:
* use FB_SYS_HELPERS option

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Tomi Valkeinen <tomba@kernel.org>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-9-tzimmermann@suse.de
17 months agodrm/fbdev-dma: Use regular fbdev I/O helpers
Thomas Zimmermann [Tue, 30 May 2023 15:12:22 +0000 (17:12 +0200)]
drm/fbdev-dma: Use regular fbdev I/O helpers

Use the regular fbdev helpers for framebuffer I/O instead of DRM's
helpers. Fbdev-dma does not use damage handling, so DRM's fbdev helpers
are mere wrappers around the fbdev code.

By using fbdev helpers directly within each DRM fbdev emulation,
we can eventually remove DRM's wrapper functions entirely.

v4:
* use initializer macros for struct fb_ops
v2:
* use FB_SYS_HELPERS option

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-8-tzimmermann@suse.de
17 months agodrm/radeon: Use regular fbdev I/O helpers
Thomas Zimmermann [Tue, 30 May 2023 15:12:21 +0000 (17:12 +0200)]
drm/radeon: Use regular fbdev I/O helpers

Use the regular fbdev helpers for framebuffer I/O instead of DRM's
helpers. Radeon does not use damage handling, so DRM's fbdev helpers
are mere wrappers around the fbdev code.

By using fbdev helpers directly within each DRM fbdev emulation,
we can eventually remove DRM's wrapper functions entirely.

v4:
* use initializer macros for struct fb_ops
v2:
* use FB_IO_HELPERS option

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "Pan, Xinhui" <Xinhui.Pan@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-7-tzimmermann@suse.de
17 months agodrm/gma500: Use regular fbdev I/O helpers
Thomas Zimmermann [Tue, 30 May 2023 15:12:20 +0000 (17:12 +0200)]
drm/gma500: Use regular fbdev I/O helpers

Use the regular fbdev helpers for framebuffer I/O instead of DRM's
helpers. Gma500 does not use damage handling, so DRM's fbdev helpers
are mere wrappers around the fbdev code.

By using fbdev helpers directly within each DRM fbdev emulation,
we can eventually remove DRM's wrapper functions entirely.

v4:
* use initializer macros for struct fb_ops
v2:
* use FB_IO_HELPERS option

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-6-tzimmermann@suse.de
17 months agodrm/exynos: Use regular fbdev I/O helpers
Thomas Zimmermann [Tue, 30 May 2023 15:12:19 +0000 (17:12 +0200)]
drm/exynos: Use regular fbdev I/O helpers

Use the regular fbdev helpers for framebuffer I/O instead of DRM's
helpers. Exynos does not use damage handling, so DRM's fbdev helpers
are mere wrappers around the fbdev code.

By using fbdev helpers directly within each DRM fbdev emulation,
we can eventually remove DRM's wrapper functions entirely.

v4:
* use initializer macros for struct fb_ops
v3:
* don't reorder Makefile rules (Sam)
v2:
* use FB_IO_HELPERS option

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-5-tzimmermann@suse.de
17 months agodrm/armada: Use regular fbdev I/O helpers
Thomas Zimmermann [Tue, 30 May 2023 15:12:18 +0000 (17:12 +0200)]
drm/armada: Use regular fbdev I/O helpers

Use the regular fbdev helpers for framebuffer I/O instead of DRM's
helpers. Armada does not use damage handling, so DRM's fbdev helpers
are mere wrappers around the fbdev code.

By using fbdev helpers directly within each DRM fbdev emulation,
we can eventually remove DRM's wrapper functions entirely.

v4:
* use initializer macros for struct fb_ops
v2:
* use FB_IO_HELPERS option

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Russell King <linux@armlinux.org.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-4-tzimmermann@suse.de
17 months agofbdev: Add initializer macros for struct fb_ops
Thomas Zimmermann [Tue, 30 May 2023 15:12:17 +0000 (17:12 +0200)]
fbdev: Add initializer macros for struct fb_ops

For framebuffers in I/O and system memory, add macros that set
struct fb_ops to the respective callback functions.

For deferred I/O, add macros that generate callback functions with
damage handling. Add initializer macros that set struct fb_ops to
the generated callbacks.

These macros can remove a lot boilerplate code from fbdev drivers.
The drivers are supposed to use the macro that is required for its
framebuffer. Each macro is split into smaller helpers, so that
drivers with non-standard callbacks can pick and customize callbacks
as needed. There are individual helper macros for read/write, mmap
and drawing.

v5:
* fix whitespace errors (Jingfeng)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-3-tzimmermann@suse.de
17 months agofbdev: Add Kconfig options to select different fb_ops helpers
Thomas Zimmermann [Tue, 30 May 2023 15:12:16 +0000 (17:12 +0200)]
fbdev: Add Kconfig options to select different fb_ops helpers

Many fbdev drivers use the same set of fb_ops helpers. Add Kconfig
options to select them at once. This will help with making DRM's
fbdev emulation code more modular, but can also be used to simplify
fbdev's driver configs.

v3:
* fix select statement (Jingfeng)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530151228.22979-2-tzimmermann@suse.de
17 months agoMerge drm/drm-next into drm-misc-next
Thomas Zimmermann [Thu, 1 Jun 2023 09:31:39 +0000 (11:31 +0200)]
Merge drm/drm-next into drm-misc-next

Backmerging from drm-next to get commit e24e6d695377 ("drm/i915/display:
Implement fb_mmap callback function").

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
17 months agodt-bindings: samsung,mipi-dsim: Use port-base reference
Fabio Estevam [Wed, 31 May 2023 22:44:07 +0000 (19:44 -0300)]
dt-bindings: samsung,mipi-dsim: Use port-base reference

Use port-base reference for port@1.

This fixes the following schema warning:

imx8mp-dhcom-pdk3.dtb: dsi@32e60000: ports:port@1:endpoint: Unevaluated properties are not allowed ('data-lanes' was unexpected)
From schema: Documentation/devicetree/bindings/display/bridge/samsung,mipi-dsim.yaml

Fixes: 1f0d40d88f7a ("dt-bindings: bridge: Convert Samsung MIPI DSIM bridge to yaml")
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
[narmstrong: removed line break between tags]
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230531224407.1611952-1-festevam@gmail.com
17 months agodrm/ttm: Remove redundant code in ttm_tt_init_fields
Ma Jun [Wed, 31 May 2023 05:30:51 +0000 (13:30 +0800)]
drm/ttm: Remove redundant code in ttm_tt_init_fields

Remove redundant assignment code for ttm->caching as it's overwritten
just a few lines later.

v2:
 - Update the commit message.

Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230531053051.3453509-1-Jun.Ma2@amd.com
17 months agodrm/bridge: display-connector: handle hdmi-pwr supply
Dmitry Baryshkov [Wed, 31 May 2023 00:02:59 +0000 (03:02 +0300)]
drm/bridge: display-connector: handle hdmi-pwr supply

On some devices the +5V Power pin of the HDMI connector and/or the ESD
protection logic is powered on by a separate regulator. Instead of
declaring this regulator as always-on, make hdmi-connector support the
additional hdmi-pwr supply.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230531000259.3758235-4-dmitry.baryshkov@linaro.org
17 months agodrm/bridge: display-connector: rename dp_pwr to connector_pwr
Dmitry Baryshkov [Wed, 31 May 2023 00:02:58 +0000 (03:02 +0300)]
drm/bridge: display-connector: rename dp_pwr to connector_pwr

In preparation to adding support for the hdmi_pwr supply, rename dp_pwr
structure field to the generic connector_pwr.

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230531000259.3758235-3-dmitry.baryshkov@linaro.org
17 months agodt-bindings: display: hdmi-connector: add hdmi-pwr supply
Dmitry Baryshkov [Wed, 31 May 2023 00:02:57 +0000 (03:02 +0300)]
dt-bindings: display: hdmi-connector: add hdmi-pwr supply

Follow the dp-connector example and add hdmi-pwr supply to drive the 5V
pin of the HDMI connector (together with some simple glue logic possibly
attached to the connector).

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230531000259.3758235-2-dmitry.baryshkov@linaro.org
17 months agodrm/panel-edp: Convert to platform remove callback returning void
Uwe Kleine-König [Tue, 30 May 2023 07:42:16 +0000 (09:42 +0200)]
drm/panel-edp: Convert to platform remove callback returning void

The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code.  However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.

panel_edp_remove() always returned zero, so convert it to return void
without any loss and then just drop the return from
panel_edp_platform_remove().

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230530074216.2195962-1-u.kleine-koenig@pengutronix.de
17 months agodrm: Switch i2c drivers back to use .probe()
Uwe Kleine-König [Fri, 26 May 2023 09:07:09 +0000 (11:07 +0200)]
drm: Switch i2c drivers back to use .probe()

After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new()
call-back type"), all drivers being converted to .probe_new() and then
03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") convert
back to (the new) .probe() to be able to eventually drop .probe_new() from
struct i2c_driver.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Martyn Welch <martyn.welch@collabora.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230526090709.1517297-1-u.kleine-koenig@pengutronix.de
17 months agodt-bindings: bridge: samsung-dsim: Make some flags optional
Adam Ford [Sun, 28 May 2023 13:27:27 +0000 (08:27 -0500)]
dt-bindings: bridge: samsung-dsim: Make some flags optional

In the event a device is connected to the samsung-dsim
controller that doesn't support the burst-clock, the
driver is able to get the requested pixel clock from the
attached device or bridge.  In these instances, the
samsung,burst-clock-frequency isn't needed, so remove
it from the required list.

The pll-clock frequency can be set by the device tree entry
for samsung,pll-clock-frequency, but in some cases, the
pll-clock may have the same clock rate as sclk_mipi clock.
If they are equal, this flag is not needed since the driver
will use the sclk_mipi rate as a fallback.

Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230528132727.3933-1-aford173@gmail.com
18 months agoMerge tag 'drm-intel-gt-next-2023-05-24' of git://anongit.freedesktop.org/drm/drm...
Dave Airlie [Sun, 28 May 2023 20:21:50 +0000 (06:21 +1000)]
Merge tag 'drm-intel-gt-next-2023-05-24' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

UAPI Changes:

- New getparam for querying PXP support and load status

Cross-subsystem Changes:

- GSC/MEI proxy driver

Driver Changes:

Fixes/improvements/new stuff:

- Avoid clearing pre-allocated framebuffers with the TTM backend (Nirmoy Das)
- Implement framebuffer mmap support (Nirmoy Das)
- Disable sampler indirect state in bindless heap (Lionel Landwerlin)
- Avoid out-of-bounds access when loading HuC (Lucas De Marchi)
- Actually return an error if GuC version range check fails (John Harrison)
- Get mutex and rpm ref just once in hwm_power_max_write (Ashutosh Dixit)
- Disable PL1 power limit when loading GuC firmware (Ashutosh Dixit)
- Block in hwmon while waiting for GuC reset to complete (Ashutosh Dixit)
- Provide sysfs for SLPC efficient freq (Vinay Belgaumkar)
- Add support for total context runtime for GuC back-end (Umesh Nerlige Ramappa)
- Enable fdinfo for GuC backends (Umesh Nerlige Ramappa)
- Don't capture Gen8 regs on Xe devices (John Harrison)
- Fix error capture for virtual engines (John Harrison)
- Track patch level versions on reduced version firmware files (John Harrison)
- Decode another GuC load failure case (John Harrison)
- GuC loading and firmware table handling fixes (John Harrison)
- Fix confused register capture list creation (John Harrison)
- Dump error capture to kernel log (John Harrison)
- Dump error capture to dmesg on CTB error (John Harrison)
- Disable rps_boost debugfs when SLPC is used (Vinay Belgaumkar)

Future platform enablement:

- Disable stolen memory backed FB for A0 [mtl] (Nirmoy Das)
- Various refactors for multi-tile enablement (Andi Shyti, Tejas Upadhyay)
- Extend Wa_22011802037 to MTL A-step (Madhumitha Tolakanahalli Pradeep)
- WA to clear RDOP clock gating [mtl] (Haridhar Kalvala)
- Set has_llc=0 [mtl] (Fei Yang)
- Define MOCS and PAT tables for MTL (Madhumitha Tolakanahalli Pradeep)
- Add PTE encode function [mtl] (Fei Yang)
- fix mocs selftest [mtl] (Fei Yang)
- Workaround coherency issue for Media [mtl] (Fei Yang)
- Add workaround 14018778641 [mtl] (Tejas Upadhyay)
- Implement Wa_14019141245 [mtl] (Radhakrishna Sripada)
- Fix the wa number for Wa_22016670082 [mtl] (Radhakrishna Sripada)
- Use correct huge page manager for MTL (Jonathan Cavitt)
- GSC/MEI support for Meteorlake (Alexander Usyskin, Daniele Ceraolo Spurio)
- Define GuC firmware version for MTL (John Harrison)
- Drop FLAT CCS check [mtl] (Pallavi Mishra)
- Add MTL for remapping CCS FBs [mtl] (Clint Taylor)
- Meteorlake PXP enablement (Alan Previn)
- Do not enable render power-gating on MTL (Andrzej Hajda)
- Add MTL performance tuning changes (Radhakrishna Sripada)
- Extend Wa_16014892111 to MTL A-step (Radhakrishna Sripada)
- PMU multi-tile support (Tvrtko Ursulin)
- End support for set caching ioctl [mtl] (Fei Yang)

Driver refactors:

- Use i915 instead of dev_priv insied the file_priv structure (Andi Shyti)
- Use proper parameter naming in for_each_engine() (Andi Shyti)
- Use gt_err for GT info (Tejas Upadhyay)
- Consolidate duplicated capture list code (John Harrison)
- Capture list naming clean up (John Harrison)
- Use kernel-doc -Werror when CONFIG_DRM_I915_WERROR=y (Jani Nikula)
- Preparation for using PAT index (Fei Yang)
- Use pat_index instead of cache_level (Fei Yang)

Miscellaneous:

- Fix memory leaks in i915 selftests (Cong Liu)
- Record GT error for gt failure (Tejas Upadhyay)
- Migrate platform-dependent mock hugepage selftests to live (Jonathan Cavitt)
- Update the SLPC selftest (Vinay Belgaumkar)
- Throw out set() wrapper (Jani Nikula)
- Large driver kernel doc cleanup (Jani Nikula)
- Fix probe injection CI failures after recent change (John Harrison)
- Make unexpected firmware versions an error in debug builds (John Harrison)
- Silence UBSAN uninitialized bool variable warning (Ashutosh Dixit)
- Fix memory leaks in function live_nop_switch (Cong Liu)

Merges:

- Merge drm/drm-next into drm-intel-gt-next (Joonas Lahtinen)

Signed-off-by: Dave Airlie <airlied@redhat.com>
# Conflicts:
# drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZG5SxCWRSkZhTDtY@tursulin-desk
18 months agodrm: lcdif: Add i.MX93 LCDIF compatible string
Liu Ying [Wed, 10 May 2023 09:24:50 +0000 (17:24 +0800)]
drm: lcdif: Add i.MX93 LCDIF compatible string

With all previous preparations done to make it possible for the
single LCDIF embedded in i.MX93 SoC to drive multiple displays
simultaneously, add i.MX93 LCDIF compatible string as the last
step of adding i.MX93 LCDIF support.

Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230510092450.4024730-7-victor.liu@nxp.com
18 months agodrm: lcdif: Add multiple encoders and first bridges support
Liu Ying [Wed, 10 May 2023 09:24:49 +0000 (17:24 +0800)]
drm: lcdif: Add multiple encoders and first bridges support

The single LCDIF embedded in i.MX93 SoC may drive multiple displays
simultaneously.  Look at LCDIF output port's remote port parents to
find all enabled first bridges.  Add an encoder for each found bridge
and attach the bridge to the encoder.  This is a preparation for
adding i.MX93 LCDIF support.

Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Acked-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230510092450.4024730-6-victor.liu@nxp.com
18 months agodrm: lcdif: Check consistent bus format and flags across first bridges
Liu Ying [Wed, 10 May 2023 09:24:48 +0000 (17:24 +0800)]
drm: lcdif: Check consistent bus format and flags across first bridges

The single LCDIF embedded in i.MX93 SoC may drive multiple displays
simultaneously.  Check bus format and flags across first bridges in
->atomic_check() to ensure they are consistent.  This is a preparation
for adding i.MX93 LCDIF support.

Acked-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230510092450.4024730-5-victor.liu@nxp.com
18 months agodrm: lcdif: Determine bus format and flags in ->atomic_check()
Liu Ying [Wed, 10 May 2023 09:24:47 +0000 (17:24 +0800)]
drm: lcdif: Determine bus format and flags in ->atomic_check()

Instead of determining LCDIF output bus format and bus flags in
->atomic_enable(), do that in ->atomic_check().  This is a
preparation for the upcoming patch to check consistent bus format
and bus flags across all first downstream bridges in ->atomic_check().
New lcdif_crtc_state structure is introduced to cache bus format
and bus flags states in ->atomic_check() so that they can be read
in ->atomic_enable().

Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230510092450.4024730-4-victor.liu@nxp.com
18 months agodrm: lcdif: Drop unnecessary NULL pointer check on lcdif->bridge
Liu Ying [Wed, 10 May 2023 09:24:46 +0000 (17:24 +0800)]
drm: lcdif: Drop unnecessary NULL pointer check on lcdif->bridge

A valid bridge is already found in lcdif_attach_bridge() and set
to lcdif->bridge, so lcdif->bridge cannot be a NULL pointer. Drop
the unnecessary NULL pointer check in KMS stage.

Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230510092450.4024730-3-victor.liu@nxp.com
18 months agodt-bindings: lcdif: Add i.MX93 LCDIF support
Liu Ying [Wed, 10 May 2023 09:24:45 +0000 (17:24 +0800)]
dt-bindings: lcdif: Add i.MX93 LCDIF support

There is one LCDIF embedded in i.MX93 SoC to connect with
MIPI DSI controller through LCDIF cross line pattern(controlled
by mediamix blk-ctrl) or connect with LVDS display bridge(LDB)
directly or connect with a parallel display through parallel
display format(also controlled by mediamix blk-ctrl).  i.MX93
LCDIF IP is essentially the same to i.MX8MP LCDIF IP.  Add device
tree binding for i.MX93 LCDIF.

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Marek Vasut <marex@denx.de>
Reviewed-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Liu Ying <victor.liu@nxp.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230510092450.4024730-2-victor.liu@nxp.com
18 months agodrm/stm: ltdc: fix late dereference check
Raphael Gallais-Pou [Mon, 15 May 2023 12:38:18 +0000 (14:38 +0200)]
drm/stm: ltdc: fix late dereference check

In ltdc_crtc_set_crc_source(), struct drm_crtc was dereferenced in a
container_of() before the pointer check. This could cause a kernel panic.

Fix this smatch warning:
drivers/gpu/drm/stm/ltdc.c:1124 ltdc_crtc_set_crc_source() warn: variable dereferenced before check 'crtc' (see line 1119)

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/lkml/202212241802.zeLFZCXB-lkp@intel.com/
Reported-by: Dan Carpenter <error27@gmail.com>
Closes: https://lore.kernel.org/lkml/202212241802.zeLFZCXB-lkp@intel.com/
Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Acked-by: Philippe Cornu <philippe.cornu@foss.st.com>
Signed-off-by: Philippe Cornu <philippe.cornu@foss.st.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230515123818.93971-1-raphael.gallais-pou@foss.st.com
18 months agodrm/stm: dsi: Use devm_platform_ioremap_resource()
Yang Li [Fri, 21 Apr 2023 08:34:02 +0000 (16:34 +0800)]
drm/stm: dsi: Use devm_platform_ioremap_resource()

Convert platform_get_resource(),devm_ioremap_resource() to a single call
to devm_platform_ioremap_resource(), as this is exactly what this function
does.

Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Acked-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Signed-off-by: Philippe Cornu <philippe.cornu@foss.st.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230421083402.21364-1-yang.lee@linux.alibaba.com
18 months agoRevert "dt-bindings: bridge: samsung-dsim: Make some flags optional"
Neil Armstrong [Fri, 26 May 2023 07:27:16 +0000 (09:27 +0200)]
Revert "dt-bindings: bridge: samsung-dsim: Make some flags optional"

This reverts commit cfaf76d349837f695c8aa6d7077847fec4231fe5 which was applied
without review due to a bad tool manipulation.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230526-revert-bad-binding-v1-1-67329ad1bd80@linaro.org
18 months agodrm/panel: simple: fix active size for Ampire AM-480272H3TMQW-T01H
Dario Binacchi [Tue, 16 May 2023 08:50:39 +0000 (10:50 +0200)]
drm/panel: simple: fix active size for Ampire AM-480272H3TMQW-T01H

The previous setting was related to the overall dimension and not to the
active display area.
In the "PHYSICAL SPECIFICATIONS" section, the datasheet shows the
following parameters:

 ----------------------------------------------------------
|       Item        |         Specifications        | unit |
 ----------------------------------------------------------
| Display area      | 98.7 (W) x 57.5 (H)           |  mm  |
 ----------------------------------------------------------
| Overall dimension | 105.5(W) x 67.2(H) x 4.96(D)  |  mm  |
 ----------------------------------------------------------

Fixes: 966fea78adf2 ("drm/panel: simple: Add support for Ampire AM-480272H3TMQW-T01H")
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
[narmstrong: fixed Fixes commit id length]
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230516085039.3797303-1-dario.binacchi@amarulasolutions.com
18 months agodrm/panel: simple: Add Ampire AM-800480L1TMQW-T00H
Geert Uytterhoeven [Wed, 24 May 2023 12:32:11 +0000 (14:32 +0200)]
drm/panel: simple: Add Ampire AM-800480L1TMQW-T00H

Add support for the Ampire AM-800480L1TMQW-T00H 5" WVGA TFT LCD panel.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/244d9471e0ed248ff2dea8ded3a5384a1c51904b.1684931026.git.geert+renesas@glider.be
18 months agodt-bindings: display: panel-simple: Add Ampire AM-800480L1TMQW-T00H
Geert Uytterhoeven [Wed, 24 May 2023 12:32:10 +0000 (14:32 +0200)]
dt-bindings: display: panel-simple: Add Ampire AM-800480L1TMQW-T00H

Document support for the Ampire AM-800480L1TMQW-T00H 5" WVGA TFT LCD
panel.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/422adef8c4941fa56fdadacb3d362a9fb387455e.1684931026.git.geert+renesas@glider.be
18 months agodt-bindings: bridge: samsung-dsim: Make some flags optional
Adam Ford [Fri, 26 May 2023 03:05:59 +0000 (22:05 -0500)]
dt-bindings: bridge: samsung-dsim: Make some flags optional

In the event a device is connected to the samsung-dsim
controller that doesn't support the burst-clock, the
driver is able to get the requested pixel clock from the
attached device or bridge.  In these instances, the
samsung,burst-clock-frequency isn't needed, so remove
it from the required list.

The pll-clock frequency can be set by the device tree entry
for samsung,pll-clock-frequency, but in some cases, the
pll-clock may have the same clock rate as sclk_mipi clock.
If they are equal, this flag is not needed since the driver
will use the sclk_mipi rate as a fallback.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230526030559.326566-8-aford173@gmail.com
18 months agodrm: bridge: samsung-dsim: Support non-burst mode
Adam Ford [Fri, 26 May 2023 03:05:58 +0000 (22:05 -0500)]
drm: bridge: samsung-dsim: Support non-burst mode

The high-speed clock is hard-coded to the burst-clock
frequency specified in the device tree.  However, when
using devices like certain bridge chips without burst mode
and varying resolutions and refresh rates, it may be
necessary to set the high-speed clock dynamically based
on the desired pixel clock for the connected device.

This also removes the need to set a clock speed from
the device tree for non-burst mode operation, since the
pixel clock rate is the rate requested from the attached
device like a bridge chip.  This should have no impact
for people using burst-mode and setting the burst clock
rate is still required for those users.  If the burst
clock is not present, change the error message to
dev_info indicating the clock use the pixel clock.

Signed-off-by: Adam Ford <aford173@gmail.com>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> # imx8mm-icore
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230526030559.326566-7-aford173@gmail.com
18 months agodrm: bridge: samsung-dsim: Dynamically configure DPHY timing
Adam Ford [Fri, 26 May 2023 03:05:57 +0000 (22:05 -0500)]
drm: bridge: samsung-dsim: Dynamically configure DPHY timing

The DPHY timings are currently hard coded. Since the input
clock can be variable, the phy timings need to be variable
too.  To facilitate this, we need to cache the hs_clock
based on what is generated from the PLL.

The phy_mipi_dphy_get_default_config_for_hsclk function
configures the DPHY timings in pico-seconds, and a small macro
converts those timings into clock cycles based on the hs_clk.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Michael Walle <michael@walle.cc>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> # imx8mm-icore
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230526030559.326566-6-aford173@gmail.com
18 months agodrm: bridge: samsung-dsim: Select GENERIC_PHY_MIPI_DPHY
Adam Ford [Fri, 26 May 2023 03:05:56 +0000 (22:05 -0500)]
drm: bridge: samsung-dsim: Select GENERIC_PHY_MIPI_DPHY

In order to support variable DPHY timings, it's necessary
to enable GENERIC_PHY_MIPI_DPHY so phy_mipi_dphy_get_default_config
can be used to determine the nominal values for a given resolution
and refresh rate.

Signed-off-by: Adam Ford <aford173@gmail.com>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230526030559.326566-5-aford173@gmail.com
18 months agodrm: bridge: samsung-dsim: Fetch pll-clock-frequency automatically
Adam Ford [Fri, 26 May 2023 03:05:55 +0000 (22:05 -0500)]
drm: bridge: samsung-dsim: Fetch pll-clock-frequency automatically

Make the pll-clock-frequency optional.  If it's present, use it
to maintain backwards compatibility with existing hardware.  If it
is absent, read clock rate of "sclk_mipi" to determine the rate.
Since it can be optional, change the message from an error to
dev_info.

Signed-off-by: Adam Ford <aford173@gmail.com>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> # imx8mm-icore
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230526030559.326566-4-aford173@gmail.com
18 months agodrm: bridge: samsung-dsim: Fix PMS Calculator on imx8m[mnp]
Adam Ford [Fri, 26 May 2023 03:05:54 +0000 (22:05 -0500)]
drm: bridge: samsung-dsim: Fix PMS Calculator on imx8m[mnp]

According to Table 13-45 of the i.MX8M Mini Reference Manual, the min
and max values for M and the frequency range for the VCO_out
calculator were incorrect.  This information was contradicted in other
parts of the mini, nano and plus manuals.  After reaching out to my
NXP Rep, when confronting him about discrepencies in the Nano manual,
he responded with:
 "Yes it is definitely wrong, the one that is part
  of the NOTE in MIPI_DPHY_M_PLLPMS register table against PMS_P,
  PMS_M and PMS_S is not correct. I will report this to Doc team,
  the one customer should be take into account is the Table 13-40
  DPHY PLL Parameters and the Note above."

These updated values also match what is used in the NXP downstream
kernel.

To fix this, make new variables to hold the min and max values of m
and the minimum value of VCO_out, and update the PMS calculator to
use these new variables instead of using hard-coded values to keep
the backwards compatibility with other parts using this driver.

Fixes: 4d562c70c4dc ("drm: bridge: samsung-dsim: Add i.MX8M Mini/Nano support")
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> # imx8mm-icore
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230526030559.326566-3-aford173@gmail.com
18 months agodrm: bridge: samsung-dsim: fix blanking packet size calculation
Lucas Stach [Fri, 26 May 2023 03:05:53 +0000 (22:05 -0500)]
drm: bridge: samsung-dsim: fix blanking packet size calculation

Scale the blanking packet sizes to match the ratio between HS clock
and DPI interface clock. The controller seems to do internal scaling
to the number of active lanes, so we don't take those into account.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Adam Ford <aford173@gmail.com>
Tested-by: Chen-Yu Tsai <wenst@chromium.org>
Tested-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Tested-by: Jagan Teki <jagan@amarulasolutions.com> # imx8mm-icore
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230526030559.326566-2-aford173@gmail.com
18 months agodrm/amdgpu: Fix no-procfs build
Rob Clark [Thu, 25 May 2023 15:52:24 +0000 (08:52 -0700)]
drm/amdgpu: Fix no-procfs build

Fixes undefined symbol when PROC_FS is not enabled.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202305251510.U0R2as7k-lkp@intel.com/
Fixes: 376c25f8ca47 ("drm/amdgpu: Switch to fdinfo helper")
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: <alexander.deucher@amd.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230525155227.560094-1-robdclark@gmail.com
18 months agoMerge tag 'drm-misc-next-2023-05-24' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Fri, 26 May 2023 04:23:28 +0000 (14:23 +1000)]
Merge tag 'drm-misc-next-2023-05-24' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for v6.5:

UAPI Changes:

Cross-subsystem Changes:

 * fbdev: Move framebuffer I/O helpers to <asm/fb.h>, fix naming

 * firmware: Init sysfb as early as possible

Core Changes:

 * DRM scheduler: Rename interfaces

 * ttm: Store ttm_device_funcs in .rodata

 * Replace strlcpy() with strscpy() in various places

 * Cleanups

Driver Changes:

 * bridge: analogix: Fix endless probe loop; samsung-dsim: Support
   swapping clock/data polarity; tc358767: Use devm_ Cleanups;

 * gma500: Fix I/O-memory access

 * panel: boe-tv101wum-nl6: Improve initialization;  sharp-ls043t1le001:
  Mode fixes;  simple: Add BOE EV121WXM-N10-1850 plus DT bindings;
  AddS6D7AA0 plus DT bindings;  Cleanups

 * ssd1307x: Style fixes

 * sun4i: Release clocks

 * msm: Fix I/O-memory access

 * nouveau: Cleanups

 * shmobile: Support Renesas; Enable framebuffer console; Various fixes

 * vkms: Fix RGB565 conversion

Signed-off-by: Dave Airlie <airlied@redhat.com>
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# gpg: Signature made Wed 24 May 2023 22:39:13 AEST
# gpg:                using RSA key 7217FBAC8CE9CF6344A168E5680DC11D530B7A23
# gpg: Can't check signature: No public key

# Conflicts:
# MAINTAINERS
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230524124237.GA25416@linux-uq9g
18 months agodrm/bridge: ti-sn65dsi83: Fix enable/disable flow to meet spec
Frieder Schrempf [Wed, 3 May 2023 16:33:07 +0000 (18:33 +0200)]
drm/bridge: ti-sn65dsi83: Fix enable/disable flow to meet spec

The datasheet describes the following initialization flow including
minimum delay times between each step:

1. DSI data lanes need to be in LP-11 and the clock lane in HS mode
2. toggle EN signal
3. initialize registers
4. enable PLL
5. soft reset
6. enable DSI stream
7. check error status register

To meet this requirement we need to make sure the host bridge's
pre_enable() is called first by using the pre_enable_prev_first
flag.

Furthermore we need to split enable() into pre_enable() which covers
steps 2-5 from above and enable() which covers step 7 and is called
after the host bridge's enable().

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Fixes: ceb515ba29ba ("drm/bridge: ti-sn65dsi83: Add TI SN65DSI83 and SN65DSI84 driver")
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com> #TQMa8MxML/MBa8Mx
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230503163313.2640898-3-frieder@fris.de
18 months agodrm: bridge: samsung-dsim: Fix i.MX8M enable flow to meet spec
Frieder Schrempf [Wed, 3 May 2023 16:33:06 +0000 (18:33 +0200)]
drm: bridge: samsung-dsim: Fix i.MX8M enable flow to meet spec

According to the documentation [1] the proper enable flow is:

1. Enable DSI link and keep data lanes in LP-11 (stop state)
2. Disable stop state to bring data lanes into HS mode

Currently we do this all at once within enable(), which doesn't
allow to meet the requirements of some downstream bridges.

To fix this we now enable the DSI in pre_enable() and force it
into stop state using the FORCE_STOP_STATE bit in the ESCMODE
register until enable() is called where we reset the bit.

We currently do this only for i.MX8M as Exynos uses a different
init flow where samsung_dsim_init() is called from
samsung_dsim_host_transfer().

[1] https://docs.kernel.org/gpu/drm-kms-helpers.html#mipi-dsi-bridge-operation

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com> #TQMa8MxML/MBa8Mx
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230503163313.2640898-2-frieder@fris.de
18 months agodrm/bridge: tc358767: explicitly set readable registers
Alexander Stein [Tue, 16 May 2023 07:19:49 +0000 (09:19 +0200)]
drm/bridge: tc358767: explicitly set readable registers

This map was created from register map from datasheet (section 5.1.2).
Unused registers are stated by address, so they show up in debugfs as well.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230516071949.375264-1-alexander.stein@ew.tq-group.com
18 months agodrm/doc: Relax fdinfo string constraints
Rob Clark [Wed, 24 May 2023 15:59:37 +0000 (08:59 -0700)]
drm/doc: Relax fdinfo string constraints

The restriction about no whitespace, etc, really only applies to the
usage of strings in keys.  Values can contain anything (other than
newline).

Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230524155956.382440-8-robdclark@gmail.com
18 months agodrm/msm: Add memory stats to fdinfo
Rob Clark [Wed, 24 May 2023 15:59:36 +0000 (08:59 -0700)]
drm/msm: Add memory stats to fdinfo

Use the new helper to export stats about memory usage.

v2: Drop unintended hunk
v3: Rebase

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230524155956.382440-7-robdclark@gmail.com
18 months agodrm: Add fdinfo memory stats
Rob Clark [Wed, 24 May 2023 15:59:35 +0000 (08:59 -0700)]
drm: Add fdinfo memory stats

Add support to dump GEM stats to fdinfo.

v2: Fix typos, change size units to match docs, use div_u64
v3: Do it in core
v4: more kerneldoc
v5: doc fixes
v6: Actually use u64, bit more comment docs

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230524155956.382440-6-robdclark@gmail.com
18 months agodrm/amdgpu: Switch to fdinfo helper
Rob Clark [Wed, 24 May 2023 15:59:34 +0000 (08:59 -0700)]
drm/amdgpu: Switch to fdinfo helper

v2: Rebase on drm-misc-next

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Christian König <christian.koenig@amd.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230524155956.382440-5-robdclark@gmail.com
18 months agodrm/msm: Switch to fdinfo helper
Rob Clark [Wed, 24 May 2023 15:59:33 +0000 (08:59 -0700)]
drm/msm: Switch to fdinfo helper

Now that we have a common helper, use it.

v2: Rebase on drm-misc-next

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230524155956.382440-4-robdclark@gmail.com
18 months agodrm: Add common fdinfo helper
Rob Clark [Wed, 24 May 2023 15:59:32 +0000 (08:59 -0700)]
drm: Add common fdinfo helper

Handle a bit of the boiler-plate in a single case, and make it easier to
add some core tracked stats.  This also ensures consistent behavior
across drivers for standardised fields.

v2: Update drm-usage-stats.rst, 64b client-id, rename drm_show_fdinfo
v3: Rebase on drm-misc-next

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230524155956.382440-3-robdclark@gmail.com
18 months agodrm/docs: Fix usage stats typos
Rob Clark [Wed, 24 May 2023 15:59:31 +0000 (08:59 -0700)]
drm/docs: Fix usage stats typos

Fix a couple missing ':'s.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Acked-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230524155956.382440-2-robdclark@gmail.com
18 months agodrm: shmobile: Make DRM_SHMOBILE visible on Renesas SoC platforms
Geert Uytterhoeven [Tue, 23 May 2023 15:31:37 +0000 (17:31 +0200)]
drm: shmobile: Make DRM_SHMOBILE visible on Renesas SoC platforms

The LCD Controller supported by the drm-shmob driver is present
on SuperH SH-Mobile SoCs, and on Renesas ARM SH/R-Mobile SoCs.
Unfortunately its config option is not visible on either, so the user
can never enable the support.

Fix this by dropping the dependency on ARM (for SuperH), and by widening
the dependency range to ARCH_RENESAS (for ARM).

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/40ac67e0887d833ab4a3f1ec24828dedf0d8e108.1684854992.git.geert+renesas@glider.be
18 months agodrm: shmobile: Add missing call to drm_fbdev_generic_setup()
Geert Uytterhoeven [Tue, 23 May 2023 15:31:36 +0000 (17:31 +0200)]
drm: shmobile: Add missing call to drm_fbdev_generic_setup()

Set up generic fbdev emulation, to enable support for the Linux console.

Use 16 as the preferred depth, as that is a good compromise between
colorfulness and resource utilization, and the default of the fbdev
driver.

Suggested-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/c836938112fda21762bc9eb2741ccd0cbf1197ef.1684854992.git.geert+renesas@glider.be
18 months agodrm: shmobile: Switch to drm_crtc_init_with_planes()
Geert Uytterhoeven [Tue, 23 May 2023 15:31:35 +0000 (17:31 +0200)]
drm: shmobile: Switch to drm_crtc_init_with_planes()

The SH-Mobile DRM driver uses the legacy drm_crtc_init(), which
advertizes only the formats in safe_modeset_formats[] (XR24 and AR24) as
being supported.

Switch to drm_crtc_init_with_planes(), and advertize all supported
(A)RGB modes, so we can use RGB565 as the default mode for the console.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/2098de3d33bc479a8569da7dcbafdb685ff0a13a.1684854992.git.geert+renesas@glider.be
18 months agodrm: shmobile: Add support for DRM_FORMAT_XRGB8888
Geert Uytterhoeven [Tue, 23 May 2023 15:31:34 +0000 (17:31 +0200)]
drm: shmobile: Add support for DRM_FORMAT_XRGB8888

DRM_FORMAT_XRGB8888 aka XR24 is the modus francus of DRM, and should be
supported by all drivers.

The handling for DRM_FORMAT_XRGB8888 is similar to DRM_FORMAT_ARGB8888,
just ignore the alpha channel.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/888cde6d1f70f1610931c4a89801060bb6765ff2.1684854992.git.geert+renesas@glider.be
18 months agodrm: shmobile: Use %p4cc to print fourcc codes
Geert Uytterhoeven [Tue, 23 May 2023 15:31:33 +0000 (17:31 +0200)]
drm: shmobile: Use %p4cc to print fourcc codes

Replace the printing of hexadecimal fourcc format codes by
pretty-printed format names, using the "%p4cc" format specifier.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/1a63e5afc8a85f7ae10f7f4395c2d065ba1aeb59.1684854992.git.geert+renesas@glider.be
18 months agodma-buf/sw_sync: Replace all non-returning strlcpy with strscpy
Azeem Shaikh [Tue, 23 May 2023 02:19:43 +0000 (02:19 +0000)]
dma-buf/sw_sync: Replace all non-returning strlcpy with strscpy

strlcpy() reads the entire source buffer first.
This read may exceed the destination size limit.
This is both inefficient and can lead to linear read
overflows if a source string is not NUL-terminated [1].
In an effort to remove strlcpy() completely [2], replace
strlcpy() here with strscpy().
No return values were used, so direct replacement is safe.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89

Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230523021943.2406847-1-azeemshaikh38@gmail.com
18 months agodrm/panel: samsung-s6d7aa0: use pointer for drm_mode in panel desc struct
Artur Weber [Wed, 24 May 2023 08:43:24 +0000 (10:43 +0200)]
drm/panel: samsung-s6d7aa0: use pointer for drm_mode in panel desc struct

Fixes compilation issues with older GCC versions and Clang after
changes introduced in commit 6810bb390282 ("drm/panel: Add Samsung
S6D7AA0 panel controller driver"). Tested with GCC 13.1.1, GCC 6.4.0
and Clang 16.0.3.

Fixes the following errors with Clang:

  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:312:14: error: initializer element is not a compile-time constant
          .drm_mode = s6d7aa0_lsl080al02_mode,
                      ^~~~~~~~~~~~~~~~~~~~~~~
  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:415:14: error: initializer element is not a compile-time constant
          .drm_mode = s6d7aa0_lsl080al03_mode,
                      ^~~~~~~~~~~~~~~~~~~~~~~
  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:443:14: error: initializer element is not a compile-time constant
          .drm_mode = s6d7aa0_ltl101at01_mode,
                      ^~~~~~~~~~~~~~~~~~~~~~~
  3 errors generated.

Fixes the following errors with GCC:

  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:312:14: error: initializer element is not constant
    .drm_mode = s6d7aa0_lsl080al02_mode,
                ^~~~~~~~~~~~~~~~~~~~~~~
  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:312:14: note: (near initialization for 's6d7aa0_lsl080al02_desc.drm_mode')
  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:415:14: error: initializer element is not constant
    .drm_mode = s6d7aa0_lsl080al03_mode,
                ^~~~~~~~~~~~~~~~~~~~~~~
  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:415:14: note: (near initialization for 's6d7aa0_lsl080al03_desc.drm_mode')
  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:443:14: error: initializer element is not constant
    .drm_mode = s6d7aa0_ltl101at01_mode,
                ^~~~~~~~~~~~~~~~~~~~~~~
  drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c:443:14: note: (near initialization for 's6d7aa0_ltl101at01_desc.drm_mode')

Reported-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/lkml/20230523180212.GA1401867@dev-arch.thelio-3990X
Reported-by: kernelci.org bot <bot@kernelci.org>
Link: https://lore.kernel.org/llvm/646c6def.a70a0220.58c1a.903d@mx.google.com
Fixes: 6810bb390282 ("drm/panel: Add Samsung S6D7AA0 panel controller driver")
Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230524084324.11840-1-aweber.kernel@gmail.com
18 months agodrm/bridge: dw-hdmi: Replace all non-returning strlcpy with strscpy
Azeem Shaikh [Mon, 22 May 2023 15:52:10 +0000 (15:52 +0000)]
drm/bridge: dw-hdmi: Replace all non-returning strlcpy with strscpy

strlcpy() reads the entire source buffer first.
This read may exceed the destination size limit.
This is both inefficient and can lead to linear read
overflows if a source string is not NUL-terminated [1].
In an effort to remove strlcpy() completely [2], replace
strlcpy() here with strscpy().
No return values were used, so direct replacement is safe.

[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#strlcpy
[2] https://github.com/KSPP/linux/issues/89

Signed-off-by: Azeem Shaikh <azeemshaikh38@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230522155210.2336690-1-azeemshaikh38@gmail.com
18 months agodrm/bridge: anx7625: Prevent endless probe loop
Nícolas F. R. A. Prado [Thu, 18 May 2023 19:39:02 +0000 (15:39 -0400)]
drm/bridge: anx7625: Prevent endless probe loop

During probe, the driver registers i2c dummy devices and populates the
aux bus, which registers a device for the panel. After doing that, the
driver can still defer probe if needed. This ordering of operations is
troublesome however, because the deferred probe work will retry probing
all pending devices every time a new device is registered. Therefore, if
modules need to be loaded in order to satisfy the dependencies for this
driver to complete probe, the kernel will stall, since it'll keep trying
to probe the anx7625 driver, but never succeed, given that modules would
only be loaded after the deferred probe work completes.

Two changes are required to avoid this issue:
* Move of_find_mipi_dsi_host_by_node(), which can defer probe, to before
  anx7625_register_i2c_dummy_clients() and
  devm_of_dp_aux_populate_ep_devices(), which register devices.
* Make use of the done_probing callback when populating the aux bus,
  so that the bridge registration is only done after the panel is
  probed. This is required because the panel might need to defer probe,
  but the aux bus population needs the i2c dummy devices working, so
  this call couldn't just be moved to an earlier point in probe.
  One caveat is that if the panel is described outside the aux bus, the
  probe loop issue can still happen, but we don't have a way to avoid
  it in that case since there's no callback available.

With this patch applied, it's possible to boot on
mt8192-asurada-spherion with

CONFIG_DRM_ANALOGIX_ANX7625=y
CONFIG_MTK_MMSYS=m
CONFIG_BACKLIGHT_PWM=y

and also with

CONFIG_DRM_ANALOGIX_ANX7625=y
CONFIG_MTK_MMSYS=y
CONFIG_BACKLIGHT_PWM=m

Fixes: adca62ec370c ("drm/bridge: anx7625: Support reading edid through aux channel")
Fixes: 269332997a16 ("drm/bridge: anx7625: Return -EPROBE_DEFER if the dsi host was not found")
Reported-by: "kernelci.org bot" <bot@kernelci.org>
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230518193902.891121-1-nfraprado@collabora.com
18 months agodrm/msm: Use struct fb_info.screen_buffer
Thomas Zimmermann [Mon, 22 May 2023 19:17:01 +0000 (21:17 +0200)]
drm/msm: Use struct fb_info.screen_buffer

The fbdev framebuffer is in system memory. Store the address in
the field 'screen_buffer'. Fixes the following sparse warning.

../drivers/gpu/drm/msm/msm_fbdev.c:124:26: warning: incorrect type in assignment (different address spaces)
../drivers/gpu/drm/msm/msm_fbdev.c:124:26:    expected char [noderef] __iomem *screen_base
../drivers/gpu/drm/msm/msm_fbdev.c:124:26:    got void *

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230522191701.13406-1-tzimmermann@suse.de
18 months agodrm/gma500: Clear fbdev framebuffer with fb_memset_io()
Thomas Zimmermann [Mon, 22 May 2023 19:06:37 +0000 (21:06 +0200)]
drm/gma500: Clear fbdev framebuffer with fb_memset_io()

The fbdev framebuffer is I/O memory, so clear it with fb_memset_io().
Fixes the following sparse warning:

../drivers/gpu/drm/gma500/fbdev.c:234:20: warning: incorrect type in argument 1 (different address spaces)
../drivers/gpu/drm/gma500/fbdev.c:234:20:    expected void *s
../drivers/gpu/drm/gma500/fbdev.c:234:20:    got char [noderef] __iomem *screen_base

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230522190637.7039-1-tzimmermann@suse.de
18 months agodrm/i915/mtl: end support for set caching ioctl
Fei Yang [Fri, 19 May 2023 05:11:02 +0000 (22:11 -0700)]
drm/i915/mtl: end support for set caching ioctl

The design is to keep Buffer Object's caching policy immutable through
out its life cycle. This patch ends the support for set caching ioctl
from MTL onward. While doing that we also set BO's to be 1-way coherent
at creation time because GPU is no longer automatically snooping CPU
cache. For userspace components needing to fine tune the caching policy
for BO's, a follow up patch will extend the GEM_CREATE uAPI to allow
them specify caching mode at BO creation time.

Signed-off-by: Fei Yang <fei.yang@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519051103.3404990-2-fei.yang@intel.com
18 months agodrm/i915/pmu: Export counters from all tiles
Tvrtko Ursulin [Fri, 19 May 2023 15:49:46 +0000 (08:49 -0700)]
drm/i915/pmu: Export counters from all tiles

Start exporting frequency and RC6 counters from all tiles.

Existing counters keep their names and config values and new one use the
namespace added in the previous patch, with the "-gtN" added to their
names.

Interrupts counter is an odd one off. Because it is the global device
counters (not only GT) we choose not to add per tile versions for now.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Aravind Iddamsetty <aravind.iddamsetty@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519154946.3751971-8-umesh.nerlige.ramappa@intel.com
18 months agodrm/i915/pmu: Prepare for multi-tile non-engine counters
Tvrtko Ursulin [Fri, 19 May 2023 15:49:45 +0000 (08:49 -0700)]
drm/i915/pmu: Prepare for multi-tile non-engine counters

Reserve some bits in the counter config namespace which will carry the
tile id and prepare the code to handle this.

No per tile counters have been added yet.

v2:
- Fix checkpatch issues
- Use 4 bits for gt id in non-engine counters. Drop FIXME.
- Set MAX GTs to 4. Drop FIXME.

v3: (Ashutosh, Tvrtko)
- Drop BUG_ON that would never fire
- Make enable u64
- Pull in some code from next patch

v4: Set I915_PMU_MAX_GTS to 2 (Tvrtko)

v5: s/u64/u32 where needed (Ashutosh)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519154946.3751971-7-umesh.nerlige.ramappa@intel.com
18 months agodrm/i915/pmu: Add reference counting to the sampling timer
Tvrtko Ursulin [Fri, 19 May 2023 15:49:44 +0000 (08:49 -0700)]
drm/i915/pmu: Add reference counting to the sampling timer

We do not want to have timers per tile and waste CPU cycles and energy via
multiple wake-up sources, for a relatively un-important task of PMU
sampling, so keeping a single timer works well. But we also do not want
the first GT which goes idle to turn off the timer.

Add some reference counting, via a mask of unparked GTs, to solve this.

v2: Drop the check for unparked in i915_sample (Ashutosh)
v3: Revert v2 (Tvrtko)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519154946.3751971-6-umesh.nerlige.ramappa@intel.com
18 months agodrm/i915/pmu: Transform PMU parking code to be GT based
Tvrtko Ursulin [Fri, 19 May 2023 15:49:43 +0000 (08:49 -0700)]
drm/i915/pmu: Transform PMU parking code to be GT based

Trivial prep work for full multi-tile enablement later.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519154946.3751971-5-umesh.nerlige.ramappa@intel.com
18 months agodrm/i915/pmu: Skip sampling engines with no enabled counters
Tvrtko Ursulin [Fri, 19 May 2023 15:49:42 +0000 (08:49 -0700)]
drm/i915/pmu: Skip sampling engines with no enabled counters

As we have more and more engines do not waste time sampling the ones no-
one is monitoring.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519154946.3751971-4-umesh.nerlige.ramappa@intel.com
18 months agodrm/i915/pmu: Support PMU for all engines
Tvrtko Ursulin [Fri, 19 May 2023 15:49:41 +0000 (08:49 -0700)]
drm/i915/pmu: Support PMU for all engines

Given how the metrics are already exported, we also need to run sampling
over engines from all GTs.

Problem of GT frequencies is left for later.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519154946.3751971-3-umesh.nerlige.ramappa@intel.com
18 months agodrm/i915/pmu: Change bitmask of enabled events to u32
Tvrtko Ursulin [Fri, 19 May 2023 15:49:40 +0000 (08:49 -0700)]
drm/i915/pmu: Change bitmask of enabled events to u32

Having it as u64 was a confusing (but harmless) mistake.

Also add some asserts to make sure the internal field does not overflow
in the future.

v2: Fix WARN_ON firing for INTERRUPT event (Umesh)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519154946.3751971-2-umesh.nerlige.ramappa@intel.com
18 months agodrm/nouveau/acr/ga102: set variable ga102_gsps storage-class-specifier to static
Tom Rix [Wed, 17 May 2023 13:31:12 +0000 (09:31 -0400)]
drm/nouveau/acr/ga102: set variable ga102_gsps storage-class-specifier to static

smatch reports
drivers/gpu/drm/nouveau/nvkm/subdev/gsp/ga102.c:49:1: warning: symbol
  'ga102_gsps' was not declared. Should it be static?

This variable is only used in its defining file, so it should be static

Signed-off-by: Tom Rix <trix@redhat.com>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517133112.873856-1-trix@redhat.com
18 months agodrm/nouveau: constify pointers to hwmon_channel_info
Krzysztof Kozlowski [Thu, 11 May 2023 17:54:43 +0000 (19:54 +0200)]
drm/nouveau: constify pointers to hwmon_channel_info

Statically allocated array of pointers to hwmon_channel_info can be made
const for safety.

Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230511175443.281970-1-krzysztof.kozlowski@linaro.org
18 months agodrm/nouveau: dispnv50: fix missing-prototypes warning
Arnd Bergmann [Mon, 17 Apr 2023 21:03:23 +0000 (23:03 +0200)]
drm/nouveau: dispnv50: fix missing-prototypes warning

nv50_display_create() is declared in another header, along with
a couple of declarations that are now outdated:

drivers/gpu/drm/nouveau/dispnv50/disp.c:2517:1: error: no previous prototype for 'nv50_display_create'

Fixes: ba801ef068c1 ("drm/nouveau/kms: display destroy/init/fini hooks can be static")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Karol Herbst <kherbst@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230417210329.2469722-1-arnd@kernel.org
18 months agodrm: bridge: samsung-dsim: Implement support for clock/data polarity swap
Marek Vasut [Sun, 14 May 2023 11:46:25 +0000 (08:46 -0300)]
drm: bridge: samsung-dsim: Implement support for clock/data polarity swap

Implement support for DSI clock and data lane DN/DP polarity swap by
means of decoding 'lane-polarities' DT property. The controller does
support DN/DP swap of clock lane and all data lanes, the controller
does not support polarity swap of individual data lane bundles, add
a check which verifies all data lanes have the same polarity.

This has been validated on an imx8mm board that actually has the MIPI DSI
clock lanes inverted.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230514114625.98372-2-festevam@gmail.com
18 months agodt-bindings: samsung,mipi-dsim: Add 'lane-polarities'
Fabio Estevam [Sun, 14 May 2023 11:46:24 +0000 (08:46 -0300)]
dt-bindings: samsung,mipi-dsim: Add 'lane-polarities'

The Samsung DSIM IP block allows the inversion of the clock and
data lanes.

Add an optional property called 'lane-polarities' that describes the
polarities of the MIPI DSI clock and data lanes.

This property is useful for properly describing the hardware when the
board designer decided to switch the polarities of the MIPI DSI
clock and/or data lanes.

Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230514114625.98372-1-festevam@gmail.com
18 months agoMAINTAINERS: Add entry for Samsung S6D7AA0 LCD panel controller driver
Artur Weber [Fri, 19 May 2023 17:03:54 +0000 (19:03 +0200)]
MAINTAINERS: Add entry for Samsung S6D7AA0 LCD panel controller driver

Add myself as maintainer of the Samsung S6D7AA0 panel driver.

Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519170354.29610-4-aweber.kernel@gmail.com
18 months agodrm/panel: Add Samsung S6D7AA0 panel controller driver
Artur Weber [Fri, 19 May 2023 17:03:53 +0000 (19:03 +0200)]
drm/panel: Add Samsung S6D7AA0 panel controller driver

Initial driver for S6D7AA0-controlled panels. Currently, the following
panels are supported:

 - S6D7AA0-LSL080AL02 (Samsung Galaxy Tab 3 8.0)
 - S6D7AA0-LSL080AL03 (Samsung Galaxy Tab A 8.0 2015)
 - S6D7AA0-LTL101AT01 (Samsung Galaxy Tab A 9.7 2015)

It should be possible to extend this driver to work with other panels
using this IC.

Tested-by: Nikita Travkin <nikita@trvn.ru> #ltl101at01
Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519170354.29610-3-aweber.kernel@gmail.com
18 months agodt-bindings: display: panel: Add Samsung S6D7AA0 LCD panel controller
Artur Weber [Fri, 19 May 2023 17:03:52 +0000 (19:03 +0200)]
dt-bindings: display: panel: Add Samsung S6D7AA0 LCD panel controller

Add bindings for the S6D7AA0 LCD panel controller, including the
S6D7AA0-LSL080AL02 panel used in the Samsung Galaxy Tab 3 8.0 family
of tablets, and the S6D7AA0-LSL080AL03 and S6D7AA0-LTL101AT01 panels
used in the Samsung Galaxy Tab A 8.0 and 9.7 2015.

Signed-off-by: Artur Weber <aweber.kernel@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230519170354.29610-2-aweber.kernel@gmail.com
18 months agodrm/i915: Fix memory leaks in function live_nop_switch
Cong Liu [Wed, 17 May 2023 05:02:03 +0000 (13:02 +0800)]
drm/i915: Fix memory leaks in function live_nop_switch

Be sure to properly free the allocated memory before exiting
the live_nop_switch function.

Signed-off-by: Cong Liu <liucong2@kylinos.cn>
Suggested-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517050204.4111874-1-liucong2@kylinos.cn
18 months agodrm/sched: Rename to drm_sched_wakeup_if_can_queue()
Luben Tuikov [Wed, 17 May 2023 23:35:50 +0000 (19:35 -0400)]
drm/sched: Rename to drm_sched_wakeup_if_can_queue()

Rename drm_sched_wakeup() to drm_sched_wakeup_if_canqueue() since the former
is misleading, as it wakes up the GPU scheduler _only if_ more jobs can be
queued to the underlying hardware.

This distinction is important to make, since the wake conditional in the GPU
scheduler thread wakes up when other conditions are also true, e.g. when there
are jobs to be cleaned. For instance, a user might want to wake up the
scheduler only because there are more jobs to clean, but whether we can queue
more jobs is irrelevant.

v2: Separate "canqueue" to "can_queue". (Alex D.)

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Link: https://lore.kernel.org/r/20230517233550.377847-2-luben.tuikov@amd.com
Reviewed-by: Alex Deucher <Alexander.Deucher@amd.com>
18 months agodrm/sched: Rename to drm_sched_can_queue()
Luben Tuikov [Wed, 17 May 2023 23:35:49 +0000 (19:35 -0400)]
drm/sched: Rename to drm_sched_can_queue()

Rename drm_sched_ready() to drm_sched_can_queue(). "ready" can mean many
things and is thus meaningless in this context. Instead, rename to a name
which precisely conveys what is being checked.

Cc: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <Alexander.Deucher@amd.com>
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Reviewed-by: Alex Deucher <Alexander.Deucher@amd.com>
Link: https://lore.kernel.org/r/20230517233550.377847-1-luben.tuikov@amd.com
18 months agoMerge tag 'drm-misc-next-2023-05-11' of git://anongit.freedesktop.org/drm/drm-misc...
Dave Airlie [Fri, 19 May 2023 01:37:52 +0000 (11:37 +1000)]
Merge tag 'drm-misc-next-2023-05-11' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 6.5:

UAPI Changes:

Cross-subsystem Changes:
 - arch: Consolidate <asm/fb.h>

Core Changes:
 - aperture: Ignore firmware framebuffers with non-primary devices
 - fbdev: Use fbdev's I/O helpers
 - sysfs: Expose DRM connector ID
 - tests: More tests for drm_rect

Driver Changes:
 - armada: Implement fbdev emulation as a client
 - bridge:
   - fsl-ldb: Support i.MX6SX
   - lt9211: Remove blanking packets
   - lt9611: Remove blanking packets
   - tc358768: Implement input bus formats reporting, fix various
     timings and clocks settings
   - ti-sn65dsi86: Implement wait_hpd_asserted
 - nouveau: Improve NULL pointer checks before dereference
 - panel:
   - nt36523: Support Lenovo J606F
   - st7703: Support Anbernic RG353V-V2
   - new panels: InnoLux G070ACE-L01
 - sun4i: Fix MIPI-DSI dotclock
 - vc4: RGB Range toggle property, BT601 and BT2020 support for HDMI
 - vkms: Convert to drmm helpers, Add reflection and rotation support

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/2pxmxdzsk2ekjy6xvbpj67zrhtwvkkhfspuvdm5pfm5i54hed6@sooct7yq6z4w
18 months agodrm/i915/mtl: Extend Wa_16014892111 to MTL A-step
Radhakrishna Sripada [Wed, 17 May 2023 23:31:11 +0000 (16:31 -0700)]
drm/i915/mtl: Extend Wa_16014892111 to MTL A-step

Like DG2, MTL a-step hardware is subject to Wa_16014892111 which
requires that any changes made to the DRAW_WATERMARK register be
done via an INDIRECT_CTX batch buffer rather than through a regular
context workaround.

The bspec gives the same non-default recommended tuning value
for DRAW_WATERMARK as DG2, so we can re-use the INDIRECT_CTX code
to apply that tuning setting on A-step hardware.

Application of the tuning setting on B-step and later does not
need INDIRECT_CTX handling and is already done in
mtl_ctx_workarounds_init() as usual.

v2: Limit the WA for A-step
v3: Update the commit message.
v4: Reorder platform checks and update commit message.

Bspec: 68331
Cc: Haridhar Kalvala <haridhar.kalvala@intel.com>
Cc: Gustavo Sousa <gustavo.sousa@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517233111.297542-2-radhakrishna.sripada@intel.com
18 months agodrm/i915/mtl: Add MTL performance tuning changes
Radhakrishna Sripada [Wed, 17 May 2023 23:31:10 +0000 (16:31 -0700)]
drm/i915/mtl: Add MTL performance tuning changes

MTL reuses the tuning parameters for DG2. Extend the dg2
performance tuning parameters to MTL.

v2: Add DRAW_WATERMARK tuning parameter.
v3: Limit DRAW_WATERMARK tuning to non A0 step.
v4: Reorder platform checks.
    Restrict Blend fill caching optimization to Render GT.
v5: Move mtl tuning params to its own function

Bspec: 68331
Cc: Haridhar Kalvala <haridhar.kalvala@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Gustavo Sousa <gustavo.sousa@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517233111.297542-1-radhakrishna.sripada@intel.com
18 months agodrm/i915/mtl: do not enable render power-gating on MTL
Andrzej Hajda [Thu, 18 May 2023 14:50:52 +0000 (16:50 +0200)]
drm/i915/mtl: do not enable render power-gating on MTL

Multiple CI tests fails with forcewake ack timeouts if render
power gating is enabled.
BSpec 52698 states it should be 0 for MTL, but apparently
this info is outdated. Anyway since the patch makes MTL pass basic
tests added FIXME tag informing this is temporary workaround.

v2: added FIXME tag

Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/4983
Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230517-mtl_disable_render_pg-v2-1-0b51180a43f0@intel.com
18 months agofbdev: Rename fb_mem*() helpers
Thomas Zimmermann [Fri, 12 May 2023 10:24:44 +0000 (12:24 +0200)]
fbdev: Rename fb_mem*() helpers

Update the names of the fb_mem*() helpers to be consistent with their
regular counterparts. Hence, fb_memset() now becomes fb_memset_io(),
fb_memcpy_fromfb() now becomes fb_memcpy_fromio() and fb_memcpy_tofb()
becomes fb_memcpy_toio(). No functional changes.

v6:
* update new file fb_io_fops.c

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512102444.5438-8-tzimmermann@suse.de
18 months agofbdev: Move framebuffer I/O helpers into <asm/fb.h>
Thomas Zimmermann [Fri, 12 May 2023 10:24:43 +0000 (12:24 +0200)]
fbdev: Move framebuffer I/O helpers into <asm/fb.h>

Implement framebuffer I/O helpers, such as fb_read*() and fb_write*(),
in the architecture's <asm/fb.h> header file or the generic one.

The common case has been the use of regular I/O functions, such as
__raw_readb() or memset_io(). A few architectures used plain system-
memory reads and writes. Sparc used helpers for its SBus.

The architectures that used special cases provide the same code in
their __raw_*() I/O helpers. So the patch replaces this code with the
__raw_*() functions and moves it to <asm-generic/fb.h> for all
architectures.

v8:
* remove garbage after commit-message tags
v6:
* fix fb_readq()/fb_writeq() on 64-bit mips (kernel test robot)
v5:
* include <linux/io.h> in <asm-generic/fb>; fix s390 build
v4:
* ia64, loongarch, sparc64: add fb_mem*() to arch headers
  to keep current semantics (Arnd)
v3:
* implement all architectures with generic helpers
* support reordering and native byte order (Geert, Arnd)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Sui Jingfeng <suijingfeng@loongson.cn>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512102444.5438-7-tzimmermann@suse.de
18 months agofbdev: Include <linux/fb.h> instead of <asm/fb.h>
Thomas Zimmermann [Fri, 12 May 2023 10:24:42 +0000 (12:24 +0200)]
fbdev: Include <linux/fb.h> instead of <asm/fb.h>

Replace include statements for <asm/fb.h> with <linux/fb.h>. Fixes
the coding style: if a header is available in asm/ and linux/, it
is preferable to include the header from linux/. This only affects
a few source files, most of which already include <linux/fb.h>.

Suggested-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512102444.5438-6-tzimmermann@suse.de
18 months agofbdev: Include <linux/io.h> in various drivers
Thomas Zimmermann [Fri, 12 May 2023 10:24:41 +0000 (12:24 +0200)]
fbdev: Include <linux/io.h> in various drivers

The code uses writel() and similar I/O-memory helpers. Include
the header file to get the declarations.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512102444.5438-5-tzimmermann@suse.de
18 months agoipu-v3: Include <linux/io.h>
Thomas Zimmermann [Fri, 12 May 2023 10:24:40 +0000 (12:24 +0200)]
ipu-v3: Include <linux/io.h>

The code uses readl() and writel(). Include the header file to
get the declarations.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512102444.5438-4-tzimmermann@suse.de
18 months agofbdev/matrox: Remove trailing whitespaces
Thomas Zimmermann [Fri, 12 May 2023 10:24:39 +0000 (12:24 +0200)]
fbdev/matrox: Remove trailing whitespaces

Fix coding style. No functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Tested-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512102444.5438-3-tzimmermann@suse.de
18 months agofbdev/hitfb: Cast I/O offset to address
Thomas Zimmermann [Fri, 12 May 2023 10:24:38 +0000 (12:24 +0200)]
fbdev/hitfb: Cast I/O offset to address

Cast I/O offsets to pointers to use them with I/O functions. The I/O
functions expect pointers of type 'volatile void __iomem *', but the
offsets are plain integers. Build warnings are

  ../drivers/video/fbdev/hitfb.c: In function 'hitfb_accel_wait':
  ../arch/x86/include/asm/hd64461.h:18:33: warning: passing argument 1 of 'fb_readw' makes pointer from integer without a cast [-Wint-conversion]
   18 | #define HD64461_IO_OFFSET(x)    (HD64461_IOBASE + (x))
      |                                 ^~~~~~~~~~~~~~~~~~~~~~
      |                                 |
      |                                 unsigned int
  ../arch/x86/include/asm/hd64461.h:93:33: note: in expansion of macro 'HD64461_IO_OFFSET'
   93 | #define HD64461_GRCFGR          HD64461_IO_OFFSET(0x1044)       /* Accelerator Configuration Register */
      |                                 ^~~~~~~~~~~~~~~~~
  ../drivers/video/fbdev/hitfb.c:47:25: note: in expansion of macro 'HD64461_GRCFGR'
   47 |         while (fb_readw(HD64461_GRCFGR) & HD64461_GRCFGR_ACCSTATUS) ;
      |                         ^~~~~~~~~~~~~~
  In file included from ../arch/x86/include/asm/fb.h:15,
  from ../include/linux/fb.h:19,
  from ../drivers/video/fbdev/hitfb.c:22:
  ../include/asm-generic/fb.h:52:57: note: expected 'const volatile void *' but argument is of type 'unsigned int'
   52 | static inline u16 fb_readw(const volatile void __iomem *addr)
      |                            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~

This patch only fixes the build warnings. It's not clear if the I/O
offsets can legally be passed to the I/O helpers. It was apparently
broken in 2007 when custom inw()/outw() helpers got removed by
commit 34a780a0afeb ("sh: hp6xx pata_platform support."). Fixing the
driver would require setting the I/O base address.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202305102136.eMjTSPwH-lkp@intel.com/
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Artur Rojek <contact@artur-rojek.eu>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230512102444.5438-2-tzimmermann@suse.de
18 months agodrm/i915/guc/slpc: Disable rps_boost debugfs
Vinay Belgaumkar [Tue, 16 May 2023 15:49:05 +0000 (08:49 -0700)]
drm/i915/guc/slpc: Disable rps_boost debugfs

rps_boost debugfs shows host turbo related info. This is not valid
when SLPC is enabled. guc_slpc_info already shows the number of boosts.
Add num_waiters there as well and disable rps_boost when SLPC is
enabled.

v2: Replace Bug with Link to resolve checkpatch warning

Link: https://gitlab.freedesktop.org/drm/intel/-/issues/7632
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230516154905.1048006-1-vinay.belgaumkar@intel.com