Commit 0c460a55 authored Dec 18, 2014 by Steve Longerbeam Committed by Philipp Zabel Jan 07, 2015

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>

parent d490f455

drivers/gpu/drm/imx/ipuv3-crtc.c

+12 −0

Original line number	Diff line number	Diff line
		@@ -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;
		}