[PATCH v2 4/7] imx-drm: ipuv3-crtc: Implement mode_fixup
From: Steve Longerbeam <slongerbeam@gmail.com>
Date: 2014-12-19 02:02:50
Also in:
dri-devel, lkml
Subsystem:
drm drivers, drm drivers and misc gpu patches, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds
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 <redacted> --- drivers/gpu/drm/imx/ipuv3-crtc.c | 12 ++++++++++++ 1 file changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/imx/ipuv3-crtc.c b/drivers/gpu/drm/imx/ipuv3-crtc.c
index 11e84a2..fb16026 100644
--- a/drivers/gpu/drm/imx/ipuv3-crtc.c
+++ b/drivers/gpu/drm/imx/ipuv3-crtc.c@@ -242,6 +242,18 @@ 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; + + videomode_from_drm_display_mode(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; }
--
1.7.9.5