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drm/msm/dpu: add writeback support for sc7180

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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@quicinc.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/485787/
Link: https://lore.kernel.org/r/20220510235439.31916-1-quic_abhinavk@quicinc.com
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
This commit is contained in:
Abhinav Kumar 2022-05-10 16:54:39 -07:00 committed by Dmitry Baryshkov
parent 1796c0255b
commit 51e4d60e6b
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog.c
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@ -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,