drm/msm/mdp4: fix blend setup with multiple crtcs
In particular, blend_setup() should not overwrite the other crtc's mixer
settings. Also, the encoder needs to be able to specify the mixer-id
explicitly, since both LVDS and DTV use 'INTF_LVDC_DTV', so we cannot
guess the mixer-id from the interface.
Signed-off-by: Rob Clark <robdclark@gmail.com>
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 47ccdbf..3b05fb4 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -280,7 +280,7 @@
dev->mode_config.max_height = 2048;
dev->mode_config.funcs = &mode_config_funcs;
- ret = drm_vblank_init(dev, 1);
+ ret = drm_vblank_init(dev, priv->num_crtcs);
if (ret < 0) {
dev_err(dev->dev, "failed to initialize vblank\n");
goto fail;