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drm: msm: dp: Fix DSC and FEC handling

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Ensure that the driver is handling DSC and FEC
enablement properly. FEC can now be independently
enabled without DSC. FEC configuration is also
now performed after link training in order to
avoid link training failures as per the DP spec.
Consequently, DSC can now be left on during
compliance testing. For DSC use-cases, ensure
that the minimum supported bpp is set to 24, as
required by the DSC spec.

CRs-Fixed: 2517994
Change-Id: I40339585da5b4e51251a3be7119b6959954954d7
Signed-off-by: Fuad Hossain <fhossain@codeaurora.org>
This commit is contained in:
Fuad Hossain
2019-09-11 18:30:40 -04:00
parent 8babba1d11
commit c348cb858a
4 changed files with 68 additions and 44 deletions
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msm/dp/dp_ctrl.h
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@@ -17,7 +17,7 @@ struct dp_ctrl {
int (*init)(struct dp_ctrl *dp_ctrl, bool flip, bool reset);
void (*deinit)(struct dp_ctrl *dp_ctrl);
int (*on)(struct dp_ctrl *dp_ctrl, bool mst_mode, bool fec_en,
bool shallow);
bool dsc_en, bool shallow);
void (*off)(struct dp_ctrl *dp_ctrl);
void (*abort)(struct dp_ctrl *dp_ctrl);
void (*isr)(struct dp_ctrl *dp_ctrl);