| Message ID | 20240226193251.29619-2-ville.syrjala@linux.intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [1/2] drm/i915: Stop doing double audio enable/disable on SDVO and g4x+ DP | expand |
On Mon, 26 Feb 2024, Ville Syrjala <ville.syrjala@linux.intel.com> wrote: > From: Ville Syrjälä <ville.syrjala@linux.intel.com> > > ADL DSI transcoders do not have the new SET_CONTEXT_LATENCY > register. Instead they supposedly use the older TGL VBLANK_START > based method of defining the vblank delay. > > Completely untested due to lack of suitable hardware. > > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> > --- > drivers/gpu/drm/i915/display/intel_display.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c > index 00ac65a14029..e9c7e9b8957a 100644 > --- a/drivers/gpu/drm/i915/display/intel_display.c > +++ b/drivers/gpu/drm/i915/display/intel_display.c > @@ -2617,7 +2617,7 @@ static void intel_set_transcoder_timings(const struct intel_crtc_state *crtc_sta > * VBLANK_START no longer works on ADL+, instead we must use > * TRANS_SET_CONTEXT_LATENCY to configure the pipe vblank start. > */ > - if (DISPLAY_VER(dev_priv) >= 13) { > + if (DISPLAY_VER(dev_priv) >= 13 && !transcoder_is_dsi(cpu_transcoder)) { > intel_de_write(dev_priv, TRANS_SET_CONTEXT_LATENCY(cpu_transcoder), > crtc_vblank_start - crtc_vdisplay);
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 00ac65a14029..e9c7e9b8957a 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -2617,7 +2617,7 @@ static void intel_set_transcoder_timings(const struct intel_crtc_state *crtc_sta * VBLANK_START no longer works on ADL+, instead we must use * TRANS_SET_CONTEXT_LATENCY to configure the pipe vblank start. */ - if (DISPLAY_VER(dev_priv) >= 13) { + if (DISPLAY_VER(dev_priv) >= 13 && !transcoder_is_dsi(cpu_transcoder)) { intel_de_write(dev_priv, TRANS_SET_CONTEXT_LATENCY(cpu_transcoder), crtc_vblank_start - crtc_vdisplay);