diff options
| author | Pin-yen Lin <treapking@chromium.org> | 2022-08-30 12:57:56 +0800 |
|---|---|---|
| committer | Robert Foss <robert.foss@linaro.org> | 2022-08-30 10:13:10 +0200 |
| commit | 7c1dceaffd99247bf443606730515b54d6285969 (patch) | |
| tree | 1ce40491a72e1eff489cff5e526c9474c4f881bc /drivers/gpu/drm/bridge | |
| parent | 1ff673333d46d2c1b053ebd0c1c7c7c79e36943e (diff) | |
| download | linux-7c1dceaffd99247bf443606730515b54d6285969.tar.bz2 | |
drm/bridge: it6505: Fix the order of DP_SET_POWER commands
Send DP_SET_POWER_D3 command to the downstream before stopping DP, so the
suspend process will not be interrupted by the HPD interrupt. Also modify
the order in .atomic_enable callback to make the callbacks symmetric.
Fixes: 46ca7da7f1e8 ("drm/bridge: it6505: Send DPCD SET_POWER to downstream")
Signed-off-by: Pin-yen Lin <treapking@chromium.org>
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220830045756.1655954-1-treapking@chromium.org
Diffstat (limited to 'drivers/gpu/drm/bridge')
| -rw-r--r-- | drivers/gpu/drm/bridge/ite-it6505.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/bridge/ite-it6505.c b/drivers/gpu/drm/bridge/ite-it6505.c index f9251ec49bf0..2bb957cffd94 100644 --- a/drivers/gpu/drm/bridge/ite-it6505.c +++ b/drivers/gpu/drm/bridge/ite-it6505.c @@ -2951,9 +2951,6 @@ static void it6505_bridge_atomic_enable(struct drm_bridge *bridge, if (ret) dev_err(dev, "Failed to setup AVI infoframe: %d", ret); - it6505_drm_dp_link_set_power(&it6505->aux, &it6505->link, - DP_SET_POWER_D0); - it6505_update_video_parameter(it6505, mode); ret = it6505_send_video_infoframe(it6505, &frame); @@ -2963,6 +2960,9 @@ static void it6505_bridge_atomic_enable(struct drm_bridge *bridge, it6505_int_mask_enable(it6505); it6505_video_reset(it6505); + + it6505_drm_dp_link_set_power(&it6505->aux, &it6505->link, + DP_SET_POWER_D0); } static void it6505_bridge_atomic_disable(struct drm_bridge *bridge, @@ -2974,9 +2974,9 @@ static void it6505_bridge_atomic_disable(struct drm_bridge *bridge, DRM_DEV_DEBUG_DRIVER(dev, "start"); if (it6505->powered) { - it6505_video_disable(it6505); it6505_drm_dp_link_set_power(&it6505->aux, &it6505->link, DP_SET_POWER_D3); + it6505_video_disable(it6505); } } |