From: Dmitry Baryshkov Date: Wed, 18 Jan 2023 08:16:46 +0000 (+0200) Subject: drm/bridge: lt9611: fix sleep mode setup X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=ae2d329f104b75a0a78dcaded29fe6283289cdf9;p=linux.git 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: 23278bf54afe ("drm/bridge: Introduce LT9611 DSI to HDMI bridge") Reviewed-by: Neil Armstrong Signed-off-by: Dmitry Baryshkov Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20230118081658.2198520-2-dmitry.baryshkov@linaro.org --- diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c index 3ce4e495aee50..95a962e62ae41 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c @@ -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,