drm/bridge: dw-hdmi: add better clock disable control

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The video setup path aways sets the clock disable register to a specific
value, which has the effect of disabling the CEC engine.  When we add the
CEC driver, this becomes a problem.

Fix this by only setting/clearing the bits that the video path needs to.

Reviewed-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: https://patchwork.freedesktop.org/patch/msgid/E1dcBha-00088l-DE@rmk-PC.armlinux.org.uk

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Russell King 2017-07-31 15:29:46 +01:00 • committed by Archit Taneja

parent e84b8d75ac

commit 7cc4ab225a

1 changed files with 18 additions and 11 deletions

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drivers/gpu/drm/bridge/synopsys/dw-hdmi.c

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