From 9bede63127c61023a64b46b28e1f8cab5d31c57c Mon Sep 17 00:00:00 2001 From: Douglas Anderson Date: Fri, 23 Apr 2021 09:58:57 -0700 Subject: [PATCH] drm/bridge: ti-sn65dsi86: Use pm_runtime autosuspend Let's make the bridge use autosuspend with a 500ms delay. This is in preparation for promoting DP AUX transfers to their own sub-driver so that we're not constantly powering up and down the device as we transfer all the chunks. Signed-off-by: Douglas Anderson Reviewed-by: Bjorn Andersson Acked-by: Linus Walleij Link: https://patchwork.freedesktop.org/patch/msgid/20210423095743.v5.11.I4c0b4a87e4dc19e5023b4d0a21bbfa6d9c09ebd8@changeid --- drivers/gpu/drm/bridge/ti-sn65dsi86.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi86.c b/drivers/gpu/drm/bridge/ti-sn65dsi86.c index a1db2fb7f4e2..7f225009fd6c 100644 --- a/drivers/gpu/drm/bridge/ti-sn65dsi86.c +++ b/drivers/gpu/drm/bridge/ti-sn65dsi86.c @@ -243,7 +243,7 @@ static int status_show(struct seq_file *s, void *data) seq_printf(s, "[0x%02x] = 0x%08x\n", reg, val); } - pm_runtime_put(pdata->dev); + pm_runtime_put_autosuspend(pdata->dev); return 0; } @@ -293,7 +293,7 @@ static int ti_sn_bridge_connector_get_modes(struct drm_connector *connector) if (!edid) { pm_runtime_get_sync(pdata->dev); edid = pdata->edid = drm_get_edid(connector, &pdata->aux.ddc); - pm_runtime_put(pdata->dev); + pm_runtime_put_autosuspend(pdata->dev); } if (edid && drm_edid_is_valid(edid)) { @@ -420,7 +420,7 @@ static int ti_sn_bridge_attach(struct drm_bridge *bridge, /* check if continuous dsi clock is required or not */ pm_runtime_get_sync(pdata->dev); regmap_read(pdata->regmap, SN_DPPLL_SRC_REG, &val); - pm_runtime_put(pdata->dev); + pm_runtime_put_autosuspend(pdata->dev); if (!(val & DPPLL_CLK_SRC_DSICLK)) dsi->mode_flags |= MIPI_DSI_CLOCK_NON_CONTINUOUS; @@ -1051,7 +1051,7 @@ static int ti_sn_bridge_gpio_get(struct gpio_chip *chip, unsigned int offset) */ pm_runtime_get_sync(pdata->dev); ret = regmap_read(pdata->regmap, SN_GPIO_IO_REG, &val); - pm_runtime_put(pdata->dev); + pm_runtime_put_autosuspend(pdata->dev); if (ret) return ret; @@ -1102,7 +1102,7 @@ static int ti_sn_bridge_gpio_direction_input(struct gpio_chip *chip, * it off and when it comes back it will have lost all state, but * that's OK because the default is input and we're now an input. */ - pm_runtime_put(pdata->dev); + pm_runtime_put_autosuspend(pdata->dev); return 0; } @@ -1128,7 +1128,7 @@ static int ti_sn_bridge_gpio_direction_output(struct gpio_chip *chip, SN_GPIO_MUX_OUTPUT << shift); if (ret) { clear_bit(offset, pdata->gchip_output); - pm_runtime_put(pdata->dev); + pm_runtime_put_autosuspend(pdata->dev); } return ret; @@ -1419,6 +1419,8 @@ static int ti_sn65dsi86_probe(struct i2c_client *client, ret = devm_add_action_or_reset(dev, ti_sn65dsi86_runtime_disable, dev); if (ret) return ret; + pm_runtime_set_autosuspend_delay(pdata->dev, 500); + pm_runtime_use_autosuspend(pdata->dev); ti_sn65dsi86_debugfs_init(pdata); -- 2.20.1