diff options
| author | Krzysztof Kozlowski <krzk@kernel.org> | 2020-08-17 09:00:05 +0200 |
|---|---|---|
| committer | Chanwoo Choi <cw00.choi@samsung.com> | 2020-09-24 12:20:48 +0200 |
| commit | fbaf3b67d4d27648daebf31cccd36eee8e26528b (patch) | |
| tree | 0810b84c5bdb0f9d0e29a3c28987713022245f4c /drivers/extcon | |
| parent | extcon: ptn5150: Check current USB mode when probing (diff) | |
| download | linux-fbaf3b67d4d27648daebf31cccd36eee8e26528b.tar.xz linux-fbaf3b67d4d27648daebf31cccd36eee8e26528b.zip | |
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')
| -rw-r--r-- | drivers/extcon/extcon-ptn5150.c | 10 |
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); |