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drm/imx: convey the pixelclk-active and de-active flags from DT to the ipu-di driver

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The 'de-active' and 'pixelclk-active' DT properties are evaluated
by of_parse_display_timing() called from  of_get_drm_display_mode(),
but later lost in the conversion from videomode.flags to
drm_display_mode.flags.
Enhance of_get_drm_display_mode() to also return the bus flags in a
separate variable, so that they can be passed on to the ipu-di
driver.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Lothar Waßmann
2016-07-12 15:30:03 +02:00
committed by Philipp Zabel
parent d72daa0d75
commit fafc79ef2e
4 changed files with 20 additions and 6 deletions
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5
drivers/gpu/drm/drm_modes.c
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@@ -687,7 +687,8 @@ EXPORT_SYMBOL_GPL(drm_bus_flags_from_videomode);
* 0 on success, a negative errno code when no of videomode node was found.
*/
int of_get_drm_display_mode(struct device_node *np,
struct drm_display_mode *dmode, int index)
struct drm_display_mode *dmode, u32 *bus_flags,
int index)
{
struct videomode vm;
int ret;
@@ -697,6 +698,8 @@ int of_get_drm_display_mode(struct device_node *np,
return ret;
drm_display_mode_from_videomode(&vm, dmode);
if (bus_flags)
drm_bus_flags_from_videomode(&vm, bus_flags);
pr_debug("%s: got %dx%d display mode from %s\n",
of_node_full_name(np), vm.hactive, vm.vactive, np->name);