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drm/tilcdc: adding some more devicetree config

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Adding support for max-pixelclock and max-width device tree
entries. As some devices that use the tilcdc hardware module
have restrictions on the allowed/tested values.  Also update DT
bindings document to reflect new parameters.

Signed-off-by: Darren Etheridge <detheridge@ti.com>
Acked-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Darren Etheridge
2013-06-21 13:52:23 -05:00
committed by Dave Airlie
parent 6bf02c66b9
commit 4e56434687
4 changed files with 65 additions and 3 deletions
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15
drivers/gpu/drm/tilcdc/tilcdc_drv.c
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@@ -212,7 +212,20 @@ static int tilcdc_load(struct drm_device *dev, unsigned long flags)
#endif
if (of_property_read_u32(node, "max-bandwidth", &priv->max_bandwidth))
priv->max_bandwidth = 1280 * 1024 * 60;
priv->max_bandwidth = TILCDC_DEFAULT_MAX_BANDWIDTH;
DBG("Maximum Bandwidth Value %d", priv->max_bandwidth);
if (of_property_read_u32(node, "ti,max-width", &priv->max_width))
priv->max_width = TILCDC_DEFAULT_MAX_WIDTH;
DBG("Maximum Horizontal Pixel Width Value %dpixels", priv->max_width);
if (of_property_read_u32(node, "ti,max-pixelclock",
&priv->max_pixelclock))
priv->max_pixelclock = TILCDC_DEFAULT_MAX_PIXELCLOCK;
DBG("Maximum Pixel Clock Value %dKHz", priv->max_pixelclock);
pm_runtime_enable(dev->dev);