Commit fbaf3b67 authored Aug 17, 2020 by Krzysztof Kozlowski Committed by Chanwoo Choi Sep 24, 2020

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>

parent 85256f61

drivers/extcon/extcon-ptn5150.c

+8 −2

Original line number	Diff line number	Diff line
		@@ -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)) {
		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 PTR_ERR(info->vbus_gpiod);
		return ret;
		}
		}

		mutex_init(&info->mutex);

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