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authorSteve Longerbeam <slongerbeam@gmail.com>2014-12-19 05:00:23 +0300
committerPhilipp Zabel <p.zabel@pengutronix.de>2015-01-07 21:15:02 +0300
commit0c460a55dd97b639202d6152979669c8951522cd (patch)
treedeb17aa619a2700c55290c448e69662c7b63db72 /drivers/gpu/drm/imx
parentd490f455f4ac3d97fbf109deae1e017b26acffda (diff)
downloadlinux-0c460a55dd97b639202d6152979669c8951522cd.tar.xz
imx-drm: ipuv3-crtc: Implement mode_fixup
Ask the IPU display interface, via ipu_di_adjust_videomode(), to adjust a video mode to meet any DI restrictions. The function takes a subsystem independent videomode, so the drm_display_mode must be converted to videomode first, and then the adjusted mode converted back to a drm_display_mode. Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat (limited to 'drivers/gpu/drm/imx')
-rw-r--r--drivers/gpu/drm/imx/ipuv3-crtc.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/imx/ipuv3-crtc.c b/drivers/gpu/drm/imx/ipuv3-crtc.c
index ebee59cb96d8..23d69ecb62dd 100644
--- a/drivers/gpu/drm/imx/ipuv3-crtc.c
+++ b/drivers/gpu/drm/imx/ipuv3-crtc.c
@@ -237,6 +237,18 @@ static bool ipu_crtc_mode_fixup(struct drm_crtc *crtc,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
+ struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
+ struct videomode vm;
+ int ret;
+
+ drm_display_mode_to_videomode(adjusted_mode, &vm);
+
+ ret = ipu_di_adjust_videomode(ipu_crtc->di, &vm);
+ if (ret)
+ return false;
+
+ drm_display_mode_from_videomode(&vm, adjusted_mode);
+
return true;
}