[Freedreno] [PATCH] drm/msm/dpu: add writeback support for sc7180

[Dmitry Baryshkov]

On Wed, 11 May 2022 at 02:55, Abhinav Kumar <quic_abhinavk at quicinc.com> wrote:
>
> Add writeback support for sc7180 devices. This has been
> validated on sc7180 chromebook using IGT writeback test
> suite.
>
> localhost /usr/local/libexec/igt-gpu-tools # ./kms_writeback
> Starting subtest: writeback-pixel-formats
> Subtest writeback-pixel-formats: SUCCESS (0.001s)
> Starting subtest: writeback-invalid-parameters
> Subtest writeback-invalid-parameters: SUCCESS (0.004s)
> Starting subtest: writeback-fb-id
> Subtest writeback-fb-id: SUCCESS (0.009s)
> Starting subtest: writeback-check-output
> Subtest writeback-check-output: SUCCESS (0.203s)
>
> Adding this will increase IGT coverage on chromebooks and also
> allow using writeback functionality for other use-cases as
> necessary.
>
> Signed-off-by: Abhinav Kumar <quic_abhinavk at quicinc.com>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>

> ---
>  drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
> index 400ebceb56bb..210becd2a9b7 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
> @@ -1803,6 +1803,8 @@ static void sc7180_cfg_init(struct dpu_mdss_cfg *dpu_cfg)
>                 .pingpong = sc7180_pp,
>                 .intf_count = ARRAY_SIZE(sc7180_intf),
>                 .intf = sc7180_intf,
> +               .wb_count = ARRAY_SIZE(sm8250_wb),
> +               .wb = sm8250_wb,
>                 .vbif_count = ARRAY_SIZE(sdm845_vbif),
>                 .vbif = sdm845_vbif,
>                 .reg_dma_count = 1,
> --
> 2.35.1
>


-- 
With best wishes
Dmitry