From: Olliver Schinagl <oliver@xxxxxxxxxxx>
The gpio document says we should not use unnamed bindings for gpios.
This patch uses the 'led-' prefix to the gpios and updates code and
documents. Because the devm_get_gpiod_from_child() falls back to using
old-style unnamed gpios, we can update the code first, and update
dts files as time allows.
Signed-off-by: Olliver Schinagl <oliver@xxxxxxxxxxx>
---
Documentation/devicetree/bindings/leds/leds-gpio.txt | 12 ++++++------
drivers/input/keyboard/gpio_keys_polled.c | 20 ++++++++++++--------
drivers/leds/leds-gpio.c | 2 +-
3 files changed, 19 insertions(+), 15 deletions(-)
diff --git a/Documentation/devicetree/bindings/leds/leds-gpio.txt b/Documentation/devicetree/bindings/leds/leds-gpio.txt
index fea1ebf..1ac7ccb5 100644
--- a/Documentation/devicetree/bindings/leds/leds-gpio.txt
+++ b/Documentation/devicetree/bindings/leds/leds-gpio.txt
@@ -7,7 +7,7 @@ Each LED is represented as a sub-node of the gpio-leds device. Each
node's name represents the name of the corresponding LED.
LED sub-node properties:
-- gpios : Should specify the LED's GPIO, see "gpios property" in
+- led-gpios : Should specify the LED's GPIO, see "gpios property" in
Documentation/devicetree/bindings/gpio/gpio.txt. Active low LEDs should be
indicated using flags in the GPIO specifier.
- label : (optional)
@@ -32,12 +32,12 @@ leds {
compatible = "gpio-leds";
hdd {
label = "IDE Activity";
- gpios = <&mcu_pio 0 GPIO_ACTIVE_LOW>;
+ led-gpios = <&mcu_pio 0 GPIO_ACTIVE_LOW>;
linux,default-trigger = "ide-disk";
};
fault {
- gpios = <&mcu_pio 1 GPIO_ACTIVE_HIGH>;
+ led-gpios = <&mcu_pio 1 GPIO_ACTIVE_HIGH>;
/* Keep LED on if BIOS detected hardware fault */
default-state = "keep";
};
@@ -46,11 +46,11 @@ leds {
run-control {
compatible = "gpio-leds";
red {
- gpios = <&mpc8572 6 GPIO_ACTIVE_HIGH>;
+ led-gpios = <&mpc8572 6 GPIO_ACTIVE_HIGH>;
default-state = "off";
};
green {
- gpios = <&mpc8572 7 GPIO_ACTIVE_HIGH>;
+ led-gpios = <&mpc8572 7 GPIO_ACTIVE_HIGH>;
default-state = "on";
};
};
@@ -59,7 +59,7 @@ leds {
compatible = "gpio-leds";
charger-led {
- gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
+ led-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>;
linux,default-trigger = "max8903-charger-charging";
retain-state-suspended;
};
diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
index 097d721..eadb472 100644
--- a/drivers/input/keyboard/gpio_keys_polled.c
+++ b/drivers/input/keyboard/gpio_keys_polled.c
@@ -125,15 +125,19 @@ static struct gpio_keys_platform_data *gpio_keys_polled_get_devtree_pdata(struct
device_for_each_child_node(dev, child) {
struct gpio_desc *desc;
- desc = devm_get_gpiod_from_child(dev, NULL, child);
+ desc = devm_get_gpiod_from_child(dev, "gpio_keys_polled",
+ child);
if (IS_ERR(desc)) {
- error = PTR_ERR(desc);
- if (error != -EPROBE_DEFER)
- dev_err(dev,
- "Failed to get gpio flags, error: %d\n",
- error);
- fwnode_handle_put(child);
- return ERR_PTR(error);
+ desc = devm_get_gpiod_from_child(dev, NULL, child);
+ if (IS_ERR(desc)) {
+ error = PTR_ERR(desc);
+ if (error != -EPROBE_DEFER)
+ dev_err(dev,
+ "Failed to get gpio flags, error: %d\n",
+ error);
+ fwnode_handle_put(child);
+ return ERR_PTR(error);
+ }
}
button = &pdata->buttons[pdata->nbuttons++];
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index 8e5af69..5b7bc84 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -184,7 +184,7 @@ static struct gpio_leds_priv *gpio_leds_create(struct platform_device *pdev)
struct gpio_led led = {};
const char *state = NULL;
- led.gpiod = devm_get_gpiod_from_child(dev, NULL, child);
+ led.gpiod = devm_get_gpiod_from_child(dev, "led", child);
if (IS_ERR(led.gpiod)) {
fwnode_handle_put(child);
goto err;
--
2.1.4
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