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drm/tilcdc: Choose console BPP that supports RGB

Bladeren bron 
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>
This commit is contained in:
Jyri Sarha
2016-08-13 21:08:20 +03:00
bovenliggende bcc5a6f5fc
commit c566538552
6 gewijzigde bestanden met toevoegingen van 9 en 19 verwijderingen
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14
drivers/gpu/drm/tilcdc/tilcdc_drv.c
Bestand weergeven

@@ -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,