[PATCH] drm/bridge: dw_hdmi: add cec notifier support

[linux@armlinux.org.uk (Russell King - ARM Linux)]

On Thu, Jul 06, 2017 at 12:33:06PM +0200, Neil Armstrong wrote:
> From: Russell King <rmk+kernel@armlinux.org.uk>
> 
> Add CEC notifier support to the HDMI bridge driver, so that the CEC
> part of the IP can receive its physical address.
> 
> Tested-by: Neil Armstrong <narmstrong@baylibre.com>
> Acked-by: Neil Armstrong <narmstrong@baylibre.com>
> Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
> ---
>  drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> Hi Archit, Hans,
> 
> This is repost of Russell's patch from his dw-hdmi CEC patchset.
> 
> Since his CEC implementation will be integrated in the bridge driver,
> this notifier patch won't be re-posted.
> 
> But the Amlogic Platform needs a notifier since it uses a standalone CEC
> controller.

Without this, the dw-hdmi CEC support will be totally useless anyway,
and it's pointless to merge it without this patch.

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