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gpu:drm:tilcdc: get preferred_bpp value from DT

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The preferred_bpp value in currently hard-coded to 16.
This causes color corruption on the am335x-evm lcd panel which
requires 32 bpp instead. This changes attempts to use the configured
bpp value from the DT or built-in panel-info struct.

Signed-off-by: Benoit Parrot <bparrot@ti.com>
Acked-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Benoit Parrot
2013-06-18 17:18:31 -05:00
committed by Dave Airlie
parent d6f76f3707
commit dc28aa072f
5 changed files with 18 additions and 1 deletions
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12
drivers/gpu/drm/tilcdc/tilcdc_drv.c
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@@ -157,7 +157,9 @@ 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;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
@@ -256,7 +258,15 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags)
platform_set_drvdata(pdev, dev);
priv->fbdev = drm_fbdev_cma_init(dev, 16,
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;
}
priv->fbdev = drm_fbdev_cma_init(dev, bpp,
dev->mode_config.num_crtc,
dev->mode_config.num_connector);