gpio: label descriptors using the device name
Some GPIO lines appear named "?" in the lsgpio dump due to their requesting drivers not passing a reasonable label. Most typically this happens if a device tree node just defines gpios = <...> and not foo-gpios = <...>, the former gets named "foo" and the latter gets named "?". However the struct device passed in is always valid so let's just label the GPIO with dev_name() on the device if no proper label was passed. Cc: Reported-by: Jason Kridner <jkridner@beagleboard.org> Reported-by: Jason Kridner <jkridner@beagleboard.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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@ -3650,7 +3650,8 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev,
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return desc;
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}
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status = gpiod_request(desc, con_id);
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/* If a connection label was passed use that, else use the device name as label */
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status = gpiod_request(desc, con_id ? con_id : dev_name(dev));
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if (status < 0)
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return ERR_PTR(status);
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