Rudi Heitbaum fcdb1299db linux (Allwinner): fix patch reverted with 6.0.3 ...

In PR 7022 the upstream patch as below was reverted by
commit - 53503ffc7b.
Reintroduce the upstream patch.

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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c?h=v5.10.150&id=b70f8abc1a440be6802f27631ecb9acb0a158c66

Subject: [PATCH] WIP: drm/bridge: synopsys: Fix CEC not working after power-cyclying

This fixes standby -> power-on on Rockchip platform for, at least,
RK3288/RK3328/RK3399 where CEC wasn't working after powering on again.
It might differ for other phy implementations:
The whole HPD-detection part shoud be reworked and we should in general
avoid to rely in RX_SENSE phy status (at least for HDMI), since it differs
depending on sink's implementation.

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2022-11-01 01:38:04 +00:00

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