Signed-off-by: stefan <strawberrybl...@googlemail.com>
---
drivers/staging/imx-drm/ipuv3-crtc.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/imx-drm/ipuv3-crtc.c
b/drivers/staging/imx-drm/ipuv3-crtc.c
index 720868b..71c741b 100644
--- a/drivers/staging/imx-drm/ipuv3-crtc.c
+++ b/drivers/staging/imx-drm/ipuv3-crtc.c
@@ -166,7 +166,9 @@ static int ipu_crtc_mode_set(struct drm_crtc *crtc,
sig_cfg.Vsync_pol = 1;
sig_cfg.enable_pol = 1;
- sig_cfg.clk_pol = 0;
+ sig_cfg.clk_pol = 0; /* rising edge */
+ if (mode->private_flags & DRM_MODE_FLAG_PCSYNC) /* falling edge */
+ sig_cfg.clk_pol = 1;
sig_cfg.width = mode->hdisplay;
sig_cfg.height = mode->vdisplay;
sig_cfg.pixel_fmt = out_pixel_fmt;
--
2.1.1
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