A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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gpio: Pass GPIO label down to gpiod_request

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Currently all users of fwnode_get_named_gpiod() have no way to
specify a label for the GPIO. So GPIOs listed in debugfs are shown
with label "?". With this change a proper label is used.

Also adjust all users so they can pass a label, properly retrieved
from device tree properties.

Signed-off-by: Alexander Stein <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Acked-by: Jacek Anaszewski <[email protected]>
Acked-by: Bartlomiej Zolnierkiewicz <[email protected]>
Acked-by: Dmitry Torokhov <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
This commit is contained in:
Alexander Stein 2017-01-12 17:39:24 +01:00 • committed by Linus Walleij
commit b2987d7438
7 changed files with 33 additions and 20 deletions
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13
drivers/leds/leds-gpio.c
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@ -174,12 +174,6 @@ static struct gpio_leds_priv *gpio_leds_create(struct platform_device *pdev)
const char *state = NULL;
struct device_node *np = to_of_node(child);
led.gpiod = devm_get_gpiod_from_child(dev, NULL, child, GPIOD_ASIS);
if (IS_ERR(led.gpiod)) {
fwnode_handle_put(child);
return ERR_CAST(led.gpiod);
}
ret = fwnode_property_read_string(child, "label", &led.name);
if (ret && IS_ENABLED(CONFIG_OF) && np)
led.name = np->name;
@ -188,6 +182,13 @@ static struct gpio_leds_priv *gpio_leds_create(struct platform_device *pdev)
return ERR_PTR(-EINVAL);
}
led.gpiod = devm_get_gpiod_from_child(dev, NULL, child,
GPIOD_ASIS, led.name);
if (IS_ERR(led.gpiod)) {
fwnode_handle_put(child);
return ERR_CAST(led.gpiod);
}
fwnode_property_read_string(child, "linux,default-trigger",
&led.default_trigger);