[PATCH 04/10] drm/panel: ronbo-rb070d30: fix warning with gpio controllers that sleep

[Josua Mayer]

The ronbo-rb070d30 controles the various gpios for reset, standby,
vertical and horizontal flip using the non-sleeping gpiod_set_value()
function.

When the connected gpio controller needs to sleep as is common for i2c
based expanders, this causes noisy complaints in kernel log.

Control of these gpios is not time-critical, switch to the
gpiod_set_value_cansleep() variant.

Signed-off-by: Josua Mayer <josua at solid-run.com>
---
 drivers/gpu/drm/panel/panel-ronbo-rb070d30.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-ronbo-rb070d30.c b/drivers/gpu/drm/panel/panel-ronbo-rb070d30.c
index ad35d0fb0a167..c3fbc459c7e0d 100644
--- a/drivers/gpu/drm/panel/panel-ronbo-rb070d30.c
+++ b/drivers/gpu/drm/panel/panel-ronbo-rb070d30.c
@@ -54,9 +54,9 @@ static int rb070d30_panel_prepare(struct drm_panel *panel)
 	}
 
 	msleep(20);
-	gpiod_set_value(ctx->gpios.power, 1);
+	gpiod_set_value_cansleep(ctx->gpios.power, 1);
 	msleep(20);
-	gpiod_set_value(ctx->gpios.reset, 1);
+	gpiod_set_value_cansleep(ctx->gpios.reset, 1);
 	msleep(20);
 	return 0;
 }
@@ -65,8 +65,8 @@ static int rb070d30_panel_unprepare(struct drm_panel *panel)
 {
 	struct rb070d30_panel *ctx = panel_to_rb070d30_panel(panel);
 
-	gpiod_set_value(ctx->gpios.reset, 0);
-	gpiod_set_value(ctx->gpios.power, 0);
+	gpiod_set_value_cansleep(ctx->gpios.reset, 0);
+	gpiod_set_value_cansleep(ctx->gpios.power, 0);
 	regulator_disable(ctx->supply);
 
 	return 0;

-- 
2.51.0