0177-leds-gpio-make-max_brightness-configurable.patch

From cb408fb65a08bd45543724c1e9b8f38ae1bebc4a Mon Sep 17 00:00:00 2001
From: Arnaud Ferraris <arnaud.ferraris@gmail.com>
Date: Tue, 4 Aug 2020 15:12:59 +0200
Subject: [PATCH 177/183] leds-gpio: make max_brightness configurable

---
 drivers/leds/leds-gpio.c | 4 ++++
 include/linux/leds.h     | 3 ++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index 93f5b1b60fde..f8483fab1164 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -108,6 +108,8 @@ static int create_gpio_led(const struct gpio_led *template,
 	if (ret < 0)
 		return ret;
 
+	led_dat->cdev.max_brightness = template->max_brightness;
+
 	if (template->name) {
 		led_dat->cdev.name = template->name;
 		ret = devm_led_classdev_register(parent, &led_dat->cdev);
@@ -177,6 +179,8 @@ static struct gpio_leds_priv *gpio_leds_create(struct platform_device *pdev)
 		if (fwnode_property_present(child, "panic-indicator"))
 			led.panic_indicator = 1;
 
+		fwnode_property_read_u32(child, "max-brightness", &led.max_brightness);
+
 		ret = create_gpio_led(&led, led_dat, dev, child, NULL);
 		if (ret < 0) {
 			fwnode_handle_put(child);
diff --git a/include/linux/leds.h b/include/linux/leds.h
index 6a8d6409c993..99a80092114d 100644
--- a/include/linux/leds.h
+++ b/include/linux/leds.h
@@ -513,7 +513,8 @@ typedef int (*gpio_blink_set_t)(struct gpio_desc *desc, int state,
 struct gpio_led {
 	const char *name;
 	const char *default_trigger;
-	unsigned 	gpio;
+	unsigned	gpio;
+	unsigned	max_brightness;
 	unsigned	active_low : 1;
 	unsigned	retain_state_suspended : 1;
 	unsigned	panic_indicator : 1;
-- 
2.30.0