Commit 1efb92a3 authored by Hai Li's avatar Hai Li Committed by Rob Clark

drm/msm/mdp5: Always generate active-high sync signals for DSI

DSI video mode engine can only take active-high sync signals. This
change prevents MDP5 sending active-low sync signals to DSI in any
case.
Signed-off-by: default avatarHai Li <hali@codeaurora.org>
Tested-by: default avatarArchit Taneja <architt@codeaurora.org>
Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
parent 964a0754
......@@ -144,10 +144,14 @@ static void mdp5_encoder_mode_set(struct drm_encoder *encoder,
mode->type, mode->flags);
ctrl_pol = 0;
/* DSI controller cannot handle active-low sync signals. */
if (mdp5_encoder->intf.type != INTF_DSI) {
if (mode->flags & DRM_MODE_FLAG_NHSYNC)
ctrl_pol |= MDP5_INTF_POLARITY_CTL_HSYNC_LOW;
if (mode->flags & DRM_MODE_FLAG_NVSYNC)
ctrl_pol |= MDP5_INTF_POLARITY_CTL_VSYNC_LOW;
}
/* probably need to get DATA_EN polarity from panel.. */
dtv_hsync_skew = 0; /* get this from panel? */
......
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