LED 5GHz doesn't light (SNR CPE-ME2-Lite)

For Developers
1

Router SNR CPE-ME2-Lite https://openwrt.org/toh/hwdata/snr/snr_cpe-me2-lite
I try last stable and trunk firmware. Led indicator does't light on 5GHz. 2.4GHz working good.
Factory image is a fork of OpenWRT and 5GHz on factory image working.
Some useful data from factory firmware:

cat /sys/kernel/debug/gpio
GPIOs 0-31, platform/1e000600.gpio, 1e000600.gpio:
 gpio-14  (                    |?                   ) out hi
 gpio-15  (                    |?                   ) out lo
 gpio-18  (                    |reset               ) in  hi
 gpio-19  (                    |��               ) out hi

GPIOs 32-63, platform/1e000600.gpio, 1e000600.gpio:

GPIOs 64-95, platform/1e000600.gpio, 1e000600.gpio:


        leds {
                compatible = "gpio-leds";
                        
                sys {
                        label = "snr-cpe-me2-lite:green:sys";
                        gpios = <0x02 0x0f 0x01>;
                };
                
                vpn {
                        label = "snr-cpe-me2-lite:green:vpn";
                        gpios = <0x02 0x0e 0x01>;
                };

Boot log available on device page https://openwrt.org/toh/snr/cpe-me2-lite

2

AFAICS the DTS does not define any LEDs that would be picked up for wifi. What does /etc/config/system say, what LEDs are configured there?

3 
 cat /etc/config/system

config system
        option hostname 'SNR-CPE-ME2-Lite'
        option zonename 'Asia/Yekaterinburg'
        option timezone '<+05>-5'
        option ttylogin '0'
        option log_size '64'
        option urandom_seed '0'
        option snr_defaults_set '1'
        option snr_mode_last 'router'

config timeserver 'ntp'
        option enabled '1'
        option enable_server '0'
        list server '0.ru.pool.ntp.org'

config led 'led_sys'
        option name 'sys'
        option sysfs 'snr-cpe-me2-lite:green:sys'
        option default '1'

config led 'led_vpn'
        option name 'vpn'
        option sysfs 'snr-cpe-me2-lite:green:vpn'
        option trigger 'netdev'
        option mode 'link tx rx'
        option dev 'vpn'

I think LED connected to WiFi chip MT7613BEN to his gpio pin. Maybe need to change something in mt76 driver for this chip in OpenWRT?

I find in old factory firmware following command:

if [ "$CONFIG_RT_SECOND_IF_MT7613E" = "y" ] && [ "$CONFIG_MT7613_AP_LED_CONTROL_SUPPORT" = "y" ]; then
    EN5G=`nvram_get 2860 RadioOnINIC`
    if [ "$EN5G" = "0" ]; then
        iwpriv rai0 set led_setting=01-00-00-00-00-00-00-01
    else
        iwpriv rai0 set led_setting=01-00-00-00-02-00-00-02
    fi
fi

I try manual set LED status in current OpenWRT firmware:

echo 0 > /sys/devices/platform/1e140000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/leds/mt76-phy0/brightness

LED 2.4GHz light on

echo 0 > /sys/devices/platform/1e140000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0/leds/mt76-phy0/brightness

LED 2.4GHz light off

echo 0 > /sys/devices/platform/1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0/leds/mt76-phy1/brightness
or
echo 1 > /sys/devices/platform/1e140000.pcie/pci0000:00/0000:00:01.0/0000:02:00.0/leds/mt76-phy1/brightness

LED 5GHz always off

4 
        iwpriv rai0 set led_setting=01-00-00-00-02-00-00-02

It's look like following structure:

INT AndesLedEnhanceOP(
	RTMP_ADAPTER *pAd,
	UCHAR led_idx,
	UCHAR tx_over_blink,
	UCHAR reverse_polarity,
	UCHAR band,
	UCHAR blink_mode,
	UCHAR off_time,
	UCHAR on_time,
	UCHAR led_control_mode
	)

from:

How to fix it on OpenWrt?

5 
[   34.718151] mt7615e 0000:02:00.0: enabling device (0000 -> 0002)
[   34.741439] mt7615e 0000:02:00.0: registering led 'mt76-phy1'
[   36.718184] mt7615e 0000:02:00.0: mediatek/mt7663pr2h.bin not found, switching to mediatek/mt7663pr2h_rebb.bin
[   36.886255] mt7615e 0000:02:00.0: HW/SW Version: 0x65322d31, Build Time: 2009041715da1a1
[   37.033357] mt7615e 0000:02:00.0: N9 Firmware Version: 7663mp1827, Build Time: 20200904171623
[   37.050489] mt7615e 0000:02:00.0: Region number: 0x3
[   37.060445] mt7615e 0000:02:00.0: Parsing tailer Region: 0
[   37.074290] mt7615e 0000:02:00.0: Region 0, override_addr = 0x00112c00
[   37.087396] mt7615e 0000:02:00.0: Parsing tailer Region: 1
[   37.099129] mt7615e 0000:02:00.0: Parsing tailer Region: 2
[   37.111233] mt7615e 0000:02:00.0: override_addr = 0x00112c00, option = 3