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authorKrzysztof Kozlowski <krzk@kernel.org>2020-08-17 10:00:05 +0300
committerChanwoo Choi <cw00.choi@samsung.com>2020-09-24 13:20:48 +0300
commitfbaf3b67d4d27648daebf31cccd36eee8e26528b (patch)
tree0810b84c5bdb0f9d0e29a3c28987713022245f4c /drivers/extcon/extcon-ptn5150.c
parent85256f611f664b0bd0f6c1c0693d0df6e096f279 (diff)
downloadlinux-fbaf3b67d4d27648daebf31cccd36eee8e26528b.tar.xz
extcon: ptn5150: Make 'vbus-gpios' optional
The PTN5150 chip can be used in hardware designs with only reporting of USB Type-C connection, without the VBUS control. The driver however unconditionally expected 'vbus-gpios'. Since all uses of the VBUS GPIO descriptor are NULL safe, the code can accept missing GPIO and provide only extcon status reporting. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Reviewed-by: Vijai Kumar K <vijaikumar.kanagarajan@gmail.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Diffstat (limited to 'drivers/extcon/extcon-ptn5150.c')
-rw-r--r--drivers/extcon/extcon-ptn5150.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/extcon/extcon-ptn5150.c b/drivers/extcon/extcon-ptn5150.c
index 342973726565..008e664d8d56 100644
--- a/drivers/extcon/extcon-ptn5150.c
+++ b/drivers/extcon/extcon-ptn5150.c
@@ -238,8 +238,14 @@ static int ptn5150_i2c_probe(struct i2c_client *i2c,
info->i2c = i2c;
info->vbus_gpiod = devm_gpiod_get(&i2c->dev, "vbus", GPIOD_OUT_LOW);
if (IS_ERR(info->vbus_gpiod)) {
- dev_err(dev, "failed to get VBUS GPIO\n");
- return PTR_ERR(info->vbus_gpiod);
+ ret = PTR_ERR(info->vbus_gpiod);
+ if (ret == -ENOENT) {
+ dev_info(dev, "No VBUS GPIO, ignoring VBUS control\n");
+ info->vbus_gpiod = NULL;
+ } else {
+ dev_err(dev, "failed to get VBUS GPIO\n");
+ return ret;
+ }
}
mutex_init(&info->mutex);