From: abhinavk@codeaurora.org To: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Cc: Rob Clark <robdclark@gmail.com>, Sean Paul <sean@poorly.run>, David Airlie <airlied@linux.ie>, linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, Daniel Vetter <daniel@ffwll.ch>, Kalyan Thota <kalyan_t@codeaurora.org>, freedreno@lists.freedesktop.org Subject: Re: [Freedreno] [PATCH] drm/msm/dpu: fix clock scaling on non-sc7180 board Date: Tue, 27 Oct 2020 11:49:07 -0700 [thread overview] Message-ID: <20ac1894035103cc989cbfad3f07d885@codeaurora.org> (raw) In-Reply-To: <20201027102304.945424-1-dmitry.baryshkov@linaro.org> On 2020-10-27 03:23, Dmitry Baryshkov wrote: > c33b7c0389e1 ("drm/msm/dpu: add support for clk and bw scaling for > display") has added support for handling bandwidth voting in kms path > in > addition to old mdss path. However this broke all other platforms since > _dpu_core_perf_crtc_update_bus() will now error out instead of properly > calculating bandwidth and core clocks. Fix > _dpu_core_perf_crtc_update_bus() to just skip bandwidth setting instead > of returning an error in case kms->num_paths == 0 (MDSS is used for > bandwidth management). > > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> > Fixes: c33b7c0389e1 ("drm/msm/dpu: add support for clk and bw scaling > for display") > --- Looks fine to me, thanks for the fix. Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org> > drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c > b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c > index 393858ef8a83..37c8270681c2 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c > @@ -219,9 +219,6 @@ static int _dpu_core_perf_crtc_update_bus(struct > dpu_kms *kms, > int i, ret = 0; > u64 avg_bw; > > - if (!kms->num_paths) > - return -EINVAL; > - > drm_for_each_crtc(tmp_crtc, crtc->dev) { > if (tmp_crtc->enabled && > curr_client_type == > @@ -239,6 +236,9 @@ static int _dpu_core_perf_crtc_update_bus(struct > dpu_kms *kms, > } > } > > + if (!kms->num_paths) > + return 0; > + > avg_bw = perf.bw_ctl; > do_div(avg_bw, (kms->num_paths * 1000)); /*Bps_to_icc*/
WARNING: multiple messages have this Message-ID (diff)
From: abhinavk@codeaurora.org To: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Cc: freedreno@lists.freedesktop.org, David Airlie <airlied@linux.ie>, linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, Kalyan Thota <kalyan_t@codeaurora.org>, Sean Paul <sean@poorly.run> Subject: Re: [Freedreno] [PATCH] drm/msm/dpu: fix clock scaling on non-sc7180 board Date: Tue, 27 Oct 2020 11:49:07 -0700 [thread overview] Message-ID: <20ac1894035103cc989cbfad3f07d885@codeaurora.org> (raw) In-Reply-To: <20201027102304.945424-1-dmitry.baryshkov@linaro.org> On 2020-10-27 03:23, Dmitry Baryshkov wrote: > c33b7c0389e1 ("drm/msm/dpu: add support for clk and bw scaling for > display") has added support for handling bandwidth voting in kms path > in > addition to old mdss path. However this broke all other platforms since > _dpu_core_perf_crtc_update_bus() will now error out instead of properly > calculating bandwidth and core clocks. Fix > _dpu_core_perf_crtc_update_bus() to just skip bandwidth setting instead > of returning an error in case kms->num_paths == 0 (MDSS is used for > bandwidth management). > > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> > Fixes: c33b7c0389e1 ("drm/msm/dpu: add support for clk and bw scaling > for display") > --- Looks fine to me, thanks for the fix. Reviewed-by: Abhinav Kumar <abhinavk@codeaurora.org> > drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c > b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c > index 393858ef8a83..37c8270681c2 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.c > @@ -219,9 +219,6 @@ static int _dpu_core_perf_crtc_update_bus(struct > dpu_kms *kms, > int i, ret = 0; > u64 avg_bw; > > - if (!kms->num_paths) > - return -EINVAL; > - > drm_for_each_crtc(tmp_crtc, crtc->dev) { > if (tmp_crtc->enabled && > curr_client_type == > @@ -239,6 +236,9 @@ static int _dpu_core_perf_crtc_update_bus(struct > dpu_kms *kms, > } > } > > + if (!kms->num_paths) > + return 0; > + > avg_bw = perf.bw_ctl; > do_div(avg_bw, (kms->num_paths * 1000)); /*Bps_to_icc*/ _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
next prev parent reply other threads:[~2020-10-27 18:50 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-10-27 10:23 [PATCH] drm/msm/dpu: fix clock scaling on non-sc7180 board Dmitry Baryshkov 2020-10-27 10:23 ` Dmitry Baryshkov 2020-10-27 18:49 ` abhinavk [this message] 2020-10-27 18:49 ` [Freedreno] " abhinavk 2020-11-02 18:21 ` Bjorn Andersson 2020-11-02 18:21 ` Bjorn Andersson 2020-12-29 20:15 ` patchwork-bot+linux-arm-msm
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