>-Original Message-
>From: Navare, Manasi D
>Sent: Monday, August 6, 2018 12:41 PM
>To: intel-gfx@lists.freedesktop.org
>Cc: Navare, Manasi D ; Jani Nikula
>; Ville Syrjala ;
>Srivatsa, Anusha
>Subject: [PATCH v3] drm/i915/dp: Configure Display stream splitter registers
>during DSC enable
>
>Display Stream Splitter registers need to be programmed to enable the joiner if
>two DSC engines are used and also to enable the left and the right DSC engines.
>This happens as part of the DSC enabling routine in the source in atomic
>commit.
>
>v2:
>* Rebase (Manasi)
This is v2 of the patch correct?
No functional changes since the v1...only rebase. I got confused with the patch
prefix.
But the patch itself looks good, assuming this is the latest version:
Reviewed-by: Anusha Srivatsa
>Cc: Jani Nikula
>Cc: Ville Syrjala
>Cc: Anusha Srivatsa
>Signed-off-by: Manasi Navare
>---
> drivers/gpu/drm/i915/intel_vdsc.c | 21 +
> 1 file changed, 21 insertions(+)
>
>diff --git a/drivers/gpu/drm/i915/intel_vdsc.c
>b/drivers/gpu/drm/i915/intel_vdsc.c
>index 098f9b6..10e38396 100644
>--- a/drivers/gpu/drm/i915/intel_vdsc.c
>+++ b/drivers/gpu/drm/i915/intel_vdsc.c
>@@ -1011,6 +1011,11 @@ void intel_dsc_enable(struct intel_encoder *encoder,
>{
> struct intel_dp *intel_dp = enc_to_intel_dp(&encoder->base);
> struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
>+ struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc);
>+ enum pipe pipe = crtc->pipe;
>+ i915_reg_t dss_ctl1_reg, dss_ctl2_reg;
>+ u32 dss_ctl1_val = 0;
>+ u32 dss_ctl2_val = 0;
>
> if (!crtc_state->dsc_params.compression_enable)
> return;
>@@ -1024,5 +1029,21 @@ void intel_dsc_enable(struct intel_encoder *encoder,
>
> intel_dp_send_dsc_pps_sdp(encoder, crtc_state);
>
>+ /* Configure DSS_CTL registers for DSC */
>+ if (encoder->type == INTEL_OUTPUT_EDP) {
>+ dss_ctl1_reg = DSS_CTL1;
>+ dss_ctl2_reg = DSS_CTL2;
>+ } else {
>+ dss_ctl1_reg = ICL_PIPE_DSS_CTL1(pipe);
>+ dss_ctl2_reg = ICL_PIPE_DSS_CTL2(pipe);
>+ }
>+ dss_ctl2_val |= LEFT_BRANCH_VDSC_ENABLE;
>+ if (crtc_state->dsc_params.dsc_split) {
>+ dss_ctl2_val |= RIGHT_BRANCH_VDSC_ENABLE;
>+ dss_ctl1_val |= JOINER_ENABLE;
>+ }
>+ I915_WRITE(dss_ctl1_reg, dss_ctl1_val);
>+ I915_WRITE(dss_ctl2_reg, dss_ctl2_val);
>+
> return;
> }
>--
>2.7.4
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