diff options
| author | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2023-01-18 11:16:46 +0300 |
|---|---|---|
| committer | Neil Armstrong <neil.armstrong@linaro.org> | 2023-01-18 17:27:04 +0300 |
| commit | ae2d329f104b75a0a78dcaded29fe6283289cdf9 (patch) | |
| tree | 592871a7c8d0fe289ef4bc1d36119d92bd873fd3 /drivers/gpu/drm/bridge/lontium-lt9611.c | |
| parent | 5efbe6aa7a0ec9cec7f87da0d995563aad3d2593 (diff) | |
| download | linux-ae2d329f104b75a0a78dcaded29fe6283289cdf9.tar.xz | |
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 <neil.armstrong@linaro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230118081658.2198520-2-dmitry.baryshkov@linaro.org
Diffstat (limited to 'drivers/gpu/drm/bridge/lontium-lt9611.c')
| -rw-r--r-- | drivers/gpu/drm/bridge/lontium-lt9611.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c index 3ce4e495aee5..95a962e62ae4 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, |