From 89ae3d3b9a384e75158f71ea9b878c8a45f3d582 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Tue, 9 Jun 2015 11:35:25 +0200
Subject: [PATCH] drm/msm/dp: use flags argument of devm_gpiod_get to set
direction
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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 --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;