diff mbox

[gpio-for-next,01/10] drm/msm/dp: use flags argument of devm_gpiod_get to set direction

Message ID 1436173790-29963-1-git-send-email-u.kleine-koenig@pengutronix.de (mailing list archive)
State Handled Elsewhere, archived
Commit 89ae3d3b9a38
Headers show

Commit Message

Uwe Kleine-König July 6, 2015, 9:09 a.m. UTC 
Since 39b2bbe3d715 (gpio: add flags argument to gpiod_get*() functions)
which appeared in v3.17-rc1, the gpiod_get* functions take an additional
parameter that allows to specify direction and initial value for output.

Use this to simplify the driver. Furthermore this is one caller less
that stops us making the flags argument to gpiod_get*() mandatory.

Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
 drivers/gpu/drm/msm/edp/edp_ctrl.c | 17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)
diff mbox

Patch

diff --git a/drivers/gpu/drm/msm/edp/edp_ctrl.c b/drivers/gpu/drm/msm/edp/edp_ctrl.c
index 7991069dd492..81200e9be382 100644
--- a/drivers/gpu/drm/msm/edp/edp_ctrl.c
+++ b/drivers/gpu/drm/msm/edp/edp_ctrl.c
@@ -373,7 +373,7 @@  static int edp_gpio_config(struct edp_ctrl *ctrl)
 	struct device *dev = &ctrl->pdev->dev;
 	int ret;
 
-	ctrl->panel_hpd_gpio = devm_gpiod_get(dev, "panel-hpd");
+	ctrl->panel_hpd_gpio = devm_gpiod_get(dev, "panel-hpd", GPIOD_IN);
 	if (IS_ERR(ctrl->panel_hpd_gpio)) {
 		ret = PTR_ERR(ctrl->panel_hpd_gpio);
 		ctrl->panel_hpd_gpio = NULL;
@@ -381,13 +381,7 @@  static int edp_gpio_config(struct edp_ctrl *ctrl)
 		return ret;
 	}
 
-	ret = gpiod_direction_input(ctrl->panel_hpd_gpio);
-	if (ret) {
-		pr_err("%s: Set direction for hpd failed, %d\n", __func__, ret);
-		return ret;
-	}
-
-	ctrl->panel_en_gpio = devm_gpiod_get(dev, "panel-en");
+	ctrl->panel_en_gpio = devm_gpiod_get(dev, "panel-en", GPIOD_OUT_LOW);
 	if (IS_ERR(ctrl->panel_en_gpio)) {
 		ret = PTR_ERR(ctrl->panel_en_gpio);
 		ctrl->panel_en_gpio = NULL;
@@ -395,13 +389,6 @@  static int edp_gpio_config(struct edp_ctrl *ctrl)
 		return ret;
 	}
 
-	ret = gpiod_direction_output(ctrl->panel_en_gpio, 0);
-	if (ret) {
-		pr_err("%s: Set direction for panel_en failed, %d\n",
-				__func__, ret);
-		return ret;
-	}
-
 	DBG("gpio on");
 
 	return 0;