diff options
| author | Pin-yen Lin <treapking@chromium.org> | 2023-03-15 11:55:07 +0800 |
|---|---|---|
| committer | Douglas Anderson <dianders@chromium.org> | 2023-03-23 13:55:38 -0700 |
| commit | 845e730eaf36d2199e25860259611ffda8e07f6c (patch) | |
| tree | 8922af2493ef5b6e417ddc1af99bcf0605b1bd33 /drivers/gpu/drm/bridge | |
| parent | 901cdf66e86a9db8443abe3d5c6028975be175df (diff) | |
| download | linux-stable-845e730eaf36d2199e25860259611ffda8e07f6c.tar.gz linux-stable-845e730eaf36d2199e25860259611ffda8e07f6c.tar.bz2 linux-stable-845e730eaf36d2199e25860259611ffda8e07f6c.zip | |
drm/bridge: ps8640: Skip redundant bridge enable
Skip the drm_bridge_chain_pre_enable call when the bridge is already
pre_enabled. This make pre_enable and post_disable (thus
pm_runtime_get/put) symmetric.
Fixes: 46f206304db0 ("drm/bridge: ps8640: Rework power state handling")
Signed-off-by: Pin-yen Lin <treapking@chromium.org>
Reviewed-by: Robert Foss <rfoss@kernel.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230315035508.2874915-1-treapking@chromium.org
Diffstat (limited to 'drivers/gpu/drm/bridge')
| -rw-r--r-- | drivers/gpu/drm/bridge/parade-ps8640.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/parade-ps8640.c b/drivers/gpu/drm/bridge/parade-ps8640.c index 4b361d7d5e44..08de501c436e 100644 --- a/drivers/gpu/drm/bridge/parade-ps8640.c +++ b/drivers/gpu/drm/bridge/parade-ps8640.c @@ -557,7 +557,8 @@ static struct edid *ps8640_bridge_get_edid(struct drm_bridge *bridge, * EDID, for this chip, we need to do a full poweron, otherwise it will * fail. */ - drm_atomic_bridge_chain_pre_enable(bridge, connector->state->state); + if (poweroff) + drm_atomic_bridge_chain_pre_enable(bridge, connector->state->state); edid = drm_get_edid(connector, ps_bridge->page[PAGE0_DP_CNTL]->adapter); |