[PATCH v2 22/26] drm/rockchip: vop: test for P{H,V}SYNC
From: Mark yao <hidden>
Date: 2017-01-23 07:12:25
Also in:
dri-devel, linux-rockchip, lkml
On 2017?01?22? 00:31, John Keeping wrote:
quoted hunk ↗ jump to hunk
When connected to the MIPI DSI output, we need to use N{H,V}SYNC for the internal connection but these flags are meaningless for DSI panels. Switch the test so that we do not set the P{H,V}SYNC bits unless the mode requires it. Signed-off-by: John Keeping <redacted> --- Unchanged in v2 --- drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index c7eba305c488..67aefc6d4e9a 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c@@ -933,8 +933,8 @@ static void vop_crtc_enable(struct drm_crtc *crtc) } pin_pol = 0x8; - pin_pol |= (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) ? 0 : 1; - pin_pol |= (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) ? 0 : (1 << 1); + pin_pol |= (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) ? 1 : 0; + pin_pol |= (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC) ? (1 << 1) : 0;
I'm confuse that why SYNC flags have N and P on drm, they are same meaning. If no one configure display mode's flags, I don't know which one is correct, N or P? it's a problem. Does anyone can answer it? For this patch, it may effect non-sync flags mode on other connector's behavior, but seems mostly display mode has sync flags except mipi dsi connector, I think feed mipi's requirement would be better. So it's no problem on my side. Reviewed-by: Mark Yao <redacted>
VOP_CTRL_SET(vop, pin_pol, pin_pol);
switch (s->output_type) {-- ?ark Yao