drm/mgag200: Use managed mode-config initialization

Mode configuration is now cleanued up automatically. While at it,
move all mode-config code into mgag200_mode.c. Done in preparation
of switching mgag200 to simple-KMS helpers.

v2:
	* improve commit message (Sam)
	* rebased during cherry pick
	* also move bpp_shift initialization

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Tested-by: John Donnelly <John.p.donnelly@oracle.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200507090315.21274-5-tzimmermann@suse.de

diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h
index 93e2d23..65d7096 100644 (file)
--- a/drivers/gpu/drm/mgag200/mgag200_drv.h
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
@@ -201,7 +201,6 @@ mgag200_flags_from_driver_data(kernel_ulong_t driver_data)
 
                                /* mgag200_mode.c */
 int mgag200_modeset_init(struct mga_device *mdev);
-void mgag200_modeset_fini(struct mga_device *mdev);
 
                                /* mgag200_main.c */
 int mgag200_driver_load(struct drm_device *dev, unsigned long flags);

diff --git a/drivers/gpu/drm/mgag200/mgag200_main.c b/drivers/gpu/drm/mgag200/mgag200_main.c
index 186197b..fd651ed 100644 (file)
--- a/drivers/gpu/drm/mgag200/mgag200_main.c
+++ b/drivers/gpu/drm/mgag200/mgag200_main.c
@@ -10,15 +10,8 @@
 
 #include <linux/pci.h>
 
-#include <drm/drm_crtc_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
-
 #include "mgag200_drv.h"
 
-static const struct drm_mode_config_funcs mga_mode_funcs = {
-       .fb_create = drm_gem_fb_create
-};
-
 static int mga_probe_vram(struct mga_device *mdev, void __iomem *mem)
 {
        int offset;
@@ -135,27 +128,14 @@ int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
        if (ret)
                return ret;
 
-       mdev->bpp_shifts[0] = 0;
-       mdev->bpp_shifts[1] = 1;
-       mdev->bpp_shifts[2] = 0;
-       mdev->bpp_shifts[3] = 2;
-
        ret = mgag200_mm_init(mdev);
        if (ret)
                goto err_mm;
 
-       drm_mode_config_init(dev);
-       dev->mode_config.funcs = (void *)&mga_mode_funcs;
-       if (IS_G200_SE(mdev) && mdev->vram_fb_available < (2048*1024))
-               dev->mode_config.preferred_depth = 16;
-       else
-               dev->mode_config.preferred_depth = 32;
-       dev->mode_config.prefer_shadow = 1;
-
        ret = mgag200_modeset_init(mdev);
        if (ret) {
                drm_err(dev, "Fatal error during modeset init: %d\n", ret);
-               goto err_modeset;
+               goto err_mgag200_mm_fini;
        }
 
        ret = mgag200_cursor_init(mdev);
@@ -164,9 +144,7 @@ int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
 
        return 0;
 
-err_modeset:
-       drm_mode_config_cleanup(dev);
-       mgag200_cursor_fini(mdev);
+err_mgag200_mm_fini:
        mgag200_mm_fini(mdev);
 err_mm:
        dev->dev_private = NULL;
@@ -179,8 +157,6 @@ void mgag200_driver_unload(struct drm_device *dev)
 
        if (mdev == NULL)
                return;
-       mgag200_modeset_fini(mdev);
-       drm_mode_config_cleanup(dev);
        mgag200_cursor_fini(mdev);
        mgag200_mm_fini(mdev);
        dev->dev_private = NULL;

diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index aaa73b2..7dad386 100644 (file)
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -13,6 +13,7 @@
 
 #include <drm/drm_crtc_helper.h>
 #include <drm/drm_fourcc.h>
+#include <drm/drm_gem_framebuffer_helper.h>
 #include <drm/drm_plane_helper.h>
 #include <drm/drm_probe_helper.h>
 #include <drm/drm_simple_kms_helper.h>
@@ -1615,6 +1616,17 @@ static struct drm_connector *mga_vga_init(struct drm_device *dev)
        return connector;
 }
 
+static const struct drm_mode_config_funcs mgag200_mode_config_funcs = {
+       .fb_create = drm_gem_fb_create
+};
+
+static unsigned int mgag200_preferred_depth(struct mga_device *mdev)
+{
+       if (IS_G200_SE(mdev) && mdev->vram_fb_available < (2048*1024))
+               return 16;
+       else
+               return 32;
+}
 
 int mgag200_modeset_init(struct mga_device *mdev)
 {
@@ -1623,13 +1635,30 @@ int mgag200_modeset_init(struct mga_device *mdev)
        struct drm_connector *connector;
        int ret;
 
+       mdev->bpp_shifts[0] = 0;
+       mdev->bpp_shifts[1] = 1;
+       mdev->bpp_shifts[2] = 0;
+       mdev->bpp_shifts[3] = 2;
+
+       ret = drmm_mode_config_init(dev);
+       if (ret) {
+               drm_err(dev, "drmm_mode_config_init() failed, error %d\n",
+                       ret);
+               return ret;
+       }
+
        mdev->mode_info.mode_config_initialized = true;
 
        dev->mode_config.max_width = MGAG200_MAX_FB_WIDTH;
        dev->mode_config.max_height = MGAG200_MAX_FB_HEIGHT;
 
+       dev->mode_config.preferred_depth = mgag200_preferred_depth(mdev);
+       dev->mode_config.prefer_shadow = 1;
+
        dev->mode_config.fb_base = mdev->mc.vram_base;
 
+       dev->mode_config.funcs = &mgag200_mode_config_funcs;
+
        mga_crtc_init(mdev);
 
        ret = drm_simple_encoder_init(dev, encoder, DRM_MODE_ENCODER_DAC);
@@ -1651,8 +1680,3 @@ int mgag200_modeset_init(struct mga_device *mdev)
 
        return 0;
 }
-
-void mgag200_modeset_fini(struct mga_device *mdev)
-{
-
-}