Re: [PATCH 1/2] drm/panel: ltk050h3146w: only print message when GPIO getting is not EPROBE_DEFER

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Le 04/01/2024 à 13:41, Quentin Schulz a écrit :
From: Quentin Schulz <quentin.schulz@xxxxxxxxxxxxxxxxxxxxx>

devm_gpiod_get_optional may return EPROBE_DEFER in case the GPIO
controller isn't yet probed when the panel driver is being probed.

In that case, a spurious and confusing error message about not being
able to get the reset GPIO is printed even though later on the device
actually manages to get probed.

Use dev_err_probe instead so that the message is only printed when it
truly matters.

Cc: Quentin Schulz <foss+kernel@xxxxxxxxx>
Signed-off-by: Quentin Schulz <quentin.schulz@xxxxxxxxxxxxxxxxxxxxx>

Reviewed-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>

---
  drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c | 6 ++----
  1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c b/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
index 30919c872ac8d..ecfa4181c4fd9 100644
--- a/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
+++ b/drivers/gpu/drm/panel/panel-leadtek-ltk050h3146w.c
@@ -646,10 +646,8 @@ static int ltk050h3146w_probe(struct mipi_dsi_device *dsi)
  		return -EINVAL;
ctx->reset_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW);
-	if (IS_ERR(ctx->reset_gpio)) {
-		dev_err(dev, "cannot get reset gpio\n");
-		return PTR_ERR(ctx->reset_gpio);
-	}
+	if (IS_ERR(ctx->reset_gpio))
+		return dev_err_probe(dev, PTR_ERR(ctx->reset_gpio), "cannot get reset gpio\n");
ctx->vci = devm_regulator_get(dev, "vci");
  	if (IS_ERR(ctx->vci)) {





[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux