The mdp_kms round_pixclk op creates problems when we have more interfaces in use. It calls the DTV encoder's helper by default.
Check on encoder type and call the corresponding encoder's func meant for rounding pixel clock. DSI and LVDS don't require rounding, so just return rate in their case.
Signed-off-by: Archit Taneja architt@codeaurora.org --- drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c index 6c9dd28..ddfcc51 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c @@ -169,7 +169,14 @@ static long mdp4_round_pixclk(struct msm_kms *kms, unsigned long rate, struct drm_encoder *encoder) { /* if we had >1 encoder, we'd need something more clever: */ - return mdp4_dtv_round_pixclk(encoder, rate); + switch (encoder->encoder_type) { + case DRM_MODE_ENCODER_TMDS: + return mdp4_dtv_round_pixclk(encoder, rate); + case DRM_MODE_ENCODER_LVDS: + case DRM_MODE_ENCODER_DSI: + default: + return rate; + } }
static void mdp4_preclose(struct msm_kms *kms, struct drm_file *file)