As talked about in commit d2aacaf07395 ("drm/panel: Check for already
prepared/enabled in drm_panel"), we want to remove needless code from
panel drivers that was storing and double-checking the
prepared/enabled state. Even if someone was relying on the
double-check before, that double-check is now in the core and not
needed in individual drivers.
The acx565akm seems to do some unique stuff with the "enabled"
state. Specifically:
1. It seems to detect the enabled state based on how the bootloader
left the panel.
2. It uses the enabled state to prevent certain sysfs files from
accessing a disabled panel.
We'll leave the "enabled" state tracking for this. However, we can at
least get rid of the double-check when trying to disable. In order to
do this we use the new drm_panel_helper_shutdown() from remove() which
double-checks for us.
Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>
---
drivers/gpu/drm/panel/panel-sony-acx565akm.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/panel/panel-sony-acx565akm.c b/drivers/gpu/drm/panel/panel-sony-acx565akm.c
index 3d6a286056a0..8a8326a94d72 100644
--- a/drivers/gpu/drm/panel/panel-sony-acx565akm.c
+++ b/drivers/gpu/drm/panel/panel-sony-acx565akm.c
@@ -30,6 +30,7 @@
#include <drm/drm_connector.h>
#include <drm/drm_modes.h>
#include <drm/drm_panel.h>
+#include <drm/drm_panel_helper.h>
#define CTRL_DISP_BRIGHTNESS_CTRL_ON BIT(5)
#define CTRL_DISP_AMBIENT_LIGHT_CTRL_ON BIT(4)
@@ -454,9 +455,6 @@ static int acx565akm_power_on(struct acx565akm_panel *lcd)
static void acx565akm_power_off(struct acx565akm_panel *lcd)
{
- if (!lcd->enabled)
- return;
-
acx565akm_set_display_state(lcd, 0);
acx565akm_set_sleep_mode(lcd, 1);
lcd->enabled = false;
@@ -656,8 +654,7 @@ static void acx565akm_remove(struct spi_device *spi)
if (lcd->has_bc)
acx565akm_backlight_cleanup(lcd);
- drm_panel_disable(&lcd->panel);
- drm_panel_unprepare(&lcd->panel);
+ drm_panel_helper_shutdown(&lcd->panel);
}
static const struct of_device_id acx565akm_of_match[] = {
--
2.41.0.585.gd2178a4bd4-goog
