Messages in this thread Patch in this message | ![/](/images/icornerl.gif) | | From | Pin-yen Lin <> | Subject | [PATCH 1/2] drm/bridge: ps8640: Skip redundant bridge enable | Date | Tue, 14 Mar 2023 19:00:42 +0800 |
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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> ---
drivers/gpu/drm/bridge/parade-ps8640.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
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); -- 2.40.0.rc1.284.g88254d51c5-goog
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