mvebu: backport pending Turris Omnia LEDs improvements

It backports this patch series, which is currently on review:
https://lore.kernel.org/linux-leds/20220704105955.15474-1-kabel@kernel.org/T/#rb89a4ca5a836f17bdcc53d65549e0b1779bb6a18
It allows being able to configure LEDs in userspace.

This fixes issue described in Turris Build repository
https://gitlab.nic.cz/turris/os/build/-/issues/354
It happens in OpenWrt as well.

- Before
```
root@turris:/# ls /sys/class/leds/
ath10k-phy0  ath9k-phy1   mmc0::
```

 -After
```
root@turris:/# ls /sys/class/leds/
ath10k-phy0      rgb:indicator-2  rgb:lan-3        rgb:wlan-1
ath9k-phy1       rgb:lan-0        rgb:lan-4        rgb:wlan-2
mmc0::           rgb:lan-1        rgb:power        rgb:wlan-3
rgb:indicator-1  rgb:lan-2        rgb:wan
```

Signed-off-by: Josef Schlehofer <pepe.schlehofer@gmail.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/target/linux/mvebu/patches-5.10/103-leds-turris-omnia-initialize-multi-intensity-to-full.patch b/target/linux/mvebu/patches-5.10/103-leds-turris-omnia-initialize-multi-intensity-to-full.patch
new file mode 100644
index 0000000000..6f9aaf11db
--- /dev/null
+++ b/target/linux/mvebu/patches-5.10/103-leds-turris-omnia-initialize-multi-intensity-to-full.patch
@@ -0,0 +1,33 @@
+From bda176cceb735b9b46c1900658b6486c34e13ae6 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Marek=20Beh=C3=BAn?= <kabel@kernel.org>
+Date: Mon, 4 Jul 2022 12:59:54 +0200
+Subject: [PATCH] leds: turris-omnia: initialize multi-intensity to full
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+The default color of each LED before driver probe (255, 255, 255).
+Initialize multi_intensity to this value, so that it corresponds to the
+reality.
+
+Signed-off-by: Marek Behún <kabel@kernel.org>
+---
+ drivers/leds/leds-turris-omnia.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+--- a/drivers/leds/leds-turris-omnia.c
++++ b/drivers/leds/leds-turris-omnia.c
+@@ -139,10 +139,13 @@ static int omnia_led_register(struct i2c
+ 	}
+ 
+ 	led->subled_info[0].color_index = LED_COLOR_ID_RED;
++	led->subled_info[0].intensity = 255;
+ 	led->subled_info[0].channel = 0;
+ 	led->subled_info[1].color_index = LED_COLOR_ID_GREEN;
++	led->subled_info[1].intensity = 255;
+ 	led->subled_info[1].channel = 1;
+ 	led->subled_info[2].color_index = LED_COLOR_ID_BLUE;
++	led->subled_info[2].intensity = 255;
+ 	led->subled_info[2].channel = 2;
+ 
+ 	led->mc_cdev.subled_info = led->subled_info;