[PATCH v2 4/6] drm/panel-simple: Don't re-read the EDID every time we power off the panel

From: Douglas Anderson
Date: Fri Jul 30 2021 - 17:27:01 EST


The simple-panel driver is for panels that are not hot-pluggable at
runtime. Let's keep our cached EDID around until driver unload.

Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
---

(no changes since v1)

drivers/gpu/drm/panel/panel-simple.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index ff8b59471c71..b06bf30c65d0 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -350,9 +350,6 @@ static int panel_simple_suspend(struct device *dev)
regulator_disable(p->supply);
p->unprepared_time = ktime_get();

- kfree(p->edid);
- p->edid = NULL;
-
return 0;
}

@@ -834,6 +831,9 @@ static int panel_simple_remove(struct device *dev)
if (panel->ddc && (!panel->aux || panel->ddc != &panel->aux->ddc))
put_device(&panel->ddc->dev);

+ kfree(panel->edid);
+ panel->edid = NULL;
+
return 0;
}

--
2.32.0.554.ge1b32706d8-goog