[PATCH v2 01/13] drm/bridge: lt9611: fix sleep mode setup

[Neil Armstrong]

On 08/01/2023 17:56, Dmitry Baryshkov wrote:
> On atomic_post_disable the bridge goes to the low power state. However
> the code disables too much of the chip, so the HPD event is not being
> detected and delivered to the host. Reduce the power saving in order to
> get the HPD event.
> 
> Fixes: 23278bf54afe ("drm/bridge: Introduce LT9611 DSI to HDMI bridge")
> Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
> ---
>   drivers/gpu/drm/bridge/lontium-lt9611.c | 5 ++---
>   1 file changed, 2 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c
> index 7c0a99173b39..2714184cc53f 100644
> --- a/drivers/gpu/drm/bridge/lontium-lt9611.c
> +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c
> @@ -448,12 +448,11 @@ static void lt9611_sleep_setup(struct lt9611 *lt9611)
>   		{ 0x8023, 0x01 },
>   		{ 0x8157, 0x03 }, /* set addr pin as output */
>   		{ 0x8149, 0x0b },
> -		{ 0x8151, 0x30 }, /* disable IRQ */
> +
>   		{ 0x8102, 0x48 }, /* MIPI Rx power down */
>   		{ 0x8123, 0x80 },
>   		{ 0x8130, 0x00 },
> -		{ 0x8100, 0x01 }, /* bandgap power down */
> -		{ 0x8101, 0x00 }, /* system clk power down */
> +		{ 0x8011, 0x0a },
>   	};
>   
>   	regmap_multi_reg_write(lt9611->regmap,

Reviewed-by: Neil Armstrong <neil.armstrong at linaro.org>