From d67fed1374321389ba1e756869d4f036538f141f Mon Sep 17 00:00:00 2001
From: =?utf8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
Date: Mon, 6 Jul 2015 11:09:41 +0200
Subject: [PATCH] drm/msm/dp: use flags argument of devm_gpiod_get to set
direction
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Since 5767dae43dee (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>
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
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 7991069dd492a..81200e9be3821 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;
--
2.39.5