Commit ae2d329f authored by Dmitry Baryshkov's avatar Dmitry Baryshkov Committed by Neil Armstrong
Browse files

drm/bridge: lt9611: fix sleep mode setup 



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: 23278bf5 ("drm/bridge: Introduce LT9611 DSI to HDMI bridge")
Reviewed-by: default avatarNeil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: default avatarNeil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230118081658.2198520-2-dmitry.baryshkov@linaro.org
parent 5efbe6aa

drivers/gpu/drm/bridge/lontium-lt9611.c

+2 −3
Original line number Diff line number Diff line
@@ -449,12 +449,11 @@ 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,