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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2015-05-19 10:15:56 +0300
committerThierry Reding <treding@nvidia.com>2015-05-19 11:08:04 +0300
commitc06ea0ada75bd0ea6b92d592e7f69e64455520b4 (patch)
treec6cb4e6a06aaaf2b4d7a0c80159dd701838e71ae /drivers/gpu/drm/bridge
parenta92bf307b56288c056dea7dc3dc05bb6d3cf71d8 (diff)
downloadlinux-c06ea0ada75bd0ea6b92d592e7f69e64455520b4.tar.xz
drm/bridge: ptn3460: Pass flags to devm_gpiod_get()
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. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/bridge')
-rw-r--r--drivers/gpu/drm/bridge/ptn3460.c23
1 files changed, 7 insertions, 16 deletions
diff --git a/drivers/gpu/drm/bridge/ptn3460.c b/drivers/gpu/drm/bridge/ptn3460.c
index 2cc15419088d..ee7ba3cecf71 100644
--- a/drivers/gpu/drm/bridge/ptn3460.c
+++ b/drivers/gpu/drm/bridge/ptn3460.c
@@ -330,32 +330,23 @@ static int ptn3460_probe(struct i2c_client *client,
ptn_bridge->client = client;
- ptn_bridge->gpio_pd_n = devm_gpiod_get(&client->dev, "powerdown");
+ ptn_bridge->gpio_pd_n = devm_gpiod_get(&client->dev, "powerdown",
+ GPIOD_OUT_HIGH);
if (IS_ERR(ptn_bridge->gpio_pd_n)) {
ret = PTR_ERR(ptn_bridge->gpio_pd_n);
dev_err(dev, "cannot get gpio_pd_n %d\n", ret);
return ret;
}
- ret = gpiod_direction_output(ptn_bridge->gpio_pd_n, 1);
- if (ret) {
- DRM_ERROR("cannot configure gpio_pd_n\n");
- return ret;
- }
-
- ptn_bridge->gpio_rst_n = devm_gpiod_get(&client->dev, "reset");
- if (IS_ERR(ptn_bridge->gpio_rst_n)) {
- ret = PTR_ERR(ptn_bridge->gpio_rst_n);
- DRM_ERROR("cannot get gpio_rst_n %d\n", ret);
- return ret;
- }
/*
* Request the reset pin low to avoid the bridge being
* initialized prematurely
*/
- ret = gpiod_direction_output(ptn_bridge->gpio_rst_n, 0);
- if (ret) {
- DRM_ERROR("cannot configure gpio_rst_n\n");
+ ptn_bridge->gpio_rst_n = devm_gpiod_get(&client->dev, "reset",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(ptn_bridge->gpio_rst_n)) {
+ ret = PTR_ERR(ptn_bridge->gpio_rst_n);
+ DRM_ERROR("cannot get gpio_rst_n %d\n", ret);
return ret;
}