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authorJyri Sarha <jsarha@ti.com>2016-08-13 21:08:20 +0300
committerJyri Sarha <jsarha@ti.com>2016-09-01 22:32:23 +0300
commitc56653855250ca6072d6e0ad7fe537c1a6628c70 (patch)
treeebbccced81a8e39c72551993fb33a78c68193af7 /drivers/gpu/drm/tilcdc/tilcdc_drv.c
parentbcc5a6f5fc9f0d53aa896768d6f86d7e64d0b783 (diff)
drm/tilcdc: Choose console BPP that supports RGB
Choose console BPP that supports RGB and remove the old fbdev bpp selection code. LCDC on AM335x has red and blue wires switched between 24 bit and 16 bit colors. If 24 format is wired for RGB colors, the 16 bit format is wired for BGR. drm_fbdev_cma_init() does not currently like anything else but RGB formats, so we must choose such bytes per pixel value that supports RGB. Signed-off-by: Jyri Sarha <jsarha@ti.com> Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/gpu/drm/tilcdc/tilcdc_drv.c')
-rw-r--r--drivers/gpu/drm/tilcdc/tilcdc_drv.c14
1 files changed, 5 insertions, 9 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.c b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
index f7c3ca858bb8..f8892e9ad169 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.c
@@ -240,7 +240,6 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags)
struct platform_device *pdev = dev->platformdev;
struct device_node *node = pdev->dev.of_node;
struct tilcdc_drm_private *priv;
- struct tilcdc_module *mod;
struct resource *res;
u32 bpp = 0;
int ret;
@@ -336,6 +335,7 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags)
DBG("Revision 1 LCDC supports only RGB565 format");
priv->pixelformats = tilcdc_rev1_formats;
priv->num_pixelformats = ARRAY_SIZE(tilcdc_rev1_formats);
+ bpp = 16;
} else {
const char *str = "\0";
@@ -345,17 +345,20 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags)
priv->pixelformats = tilcdc_crossed_formats;
priv->num_pixelformats =
ARRAY_SIZE(tilcdc_crossed_formats);
+ bpp = 32; /* Choose bpp with RGB support for fbdef */
} else if (0 == strcmp(str, "straight")) {
DBG("Configured for straight blue and red wires");
priv->pixelformats = tilcdc_straight_formats;
priv->num_pixelformats =
ARRAY_SIZE(tilcdc_straight_formats);
+ bpp = 16; /* Choose bpp with RGB support for fbdef */
} else {
DBG("Blue and red wiring '%s' unknown, use legacy mode",
str);
priv->pixelformats = tilcdc_legacy_formats;
priv->num_pixelformats =
ARRAY_SIZE(tilcdc_legacy_formats);
+ bpp = 16; /* This is just a guess */
}
}
@@ -372,7 +375,7 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags)
if (ret < 0)
goto fail_mode_config_cleanup;
- ret = tilcdc_add_external_encoders(dev, &bpp);
+ ret = tilcdc_add_external_encoders(dev);
if (ret < 0)
goto fail_component_cleanup;
}
@@ -395,13 +398,6 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags)
goto fail_vblank_cleanup;
}
- list_for_each_entry(mod, &module_list, list) {
- DBG("%s: preferred_bpp: %d", mod->name, mod->preferred_bpp);
- bpp = mod->preferred_bpp;
- if (bpp > 0)
- break;
- }
-
drm_mode_config_reset(dev);
priv->fbdev = drm_fbdev_cma_init(dev, bpp,