| Message ID | 20250220-dpu-active-ctl-v1-4-71ca67a564f8@linaro.org (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | drm/msm/dpu: improve CTL handling on DPU >= 5.0 platforms | expand |
On 2025-02-20 12:26:21, Dmitry Baryshkov wrote: > On DPU >= 5.0 CTL blocks were reworked in order to support using a > single CTL for all outputs. In preparation of reworking the RM code to > return single CTL make sure that dpu_encoder can cope with that. > > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Marijn Suijten <marijn.suijten@somainline.org> > --- > drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > index 5172ab4dea995a154cd88d05c3842d7425fc34ce..666a755dc74b41b79fa1bb2878339592478e4333 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > @@ -1283,7 +1283,11 @@ static void dpu_encoder_virt_atomic_mode_set(struct drm_encoder *drm_enc, > return; > } > > - phys->hw_ctl = i < num_ctl ? to_dpu_hw_ctl(hw_ctl[i]) : NULL; > + /* Use first (and only) CTL if active CTLs are supported */ > + if (num_ctl == 1) > + phys->hw_ctl = to_dpu_hw_ctl(hw_ctl[0]); > + else > + phys->hw_ctl = i < num_ctl ? to_dpu_hw_ctl(hw_ctl[i]) : NULL; > if (!phys->hw_ctl) { > DPU_ERROR_ENC(dpu_enc, > "no ctl block assigned at idx: %d\n", i); > > -- > 2.39.5 >
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c index 5172ab4dea995a154cd88d05c3842d7425fc34ce..666a755dc74b41b79fa1bb2878339592478e4333 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -1283,7 +1283,11 @@ static void dpu_encoder_virt_atomic_mode_set(struct drm_encoder *drm_enc, return; } - phys->hw_ctl = i < num_ctl ? to_dpu_hw_ctl(hw_ctl[i]) : NULL; + /* Use first (and only) CTL if active CTLs are supported */ + if (num_ctl == 1) + phys->hw_ctl = to_dpu_hw_ctl(hw_ctl[0]); + else + phys->hw_ctl = i < num_ctl ? to_dpu_hw_ctl(hw_ctl[i]) : NULL; if (!phys->hw_ctl) { DPU_ERROR_ENC(dpu_enc, "no ctl block assigned at idx: %d\n", i);
On DPU >= 5.0 CTL blocks were reworked in order to support using a single CTL for all outputs. In preparation of reworking the RM code to return single CTL make sure that dpu_encoder can cope with that. Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> --- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)