[openwrt/openwrt] mvebu: macchiatobin-singleshot: enable heartbeat LED

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/85caf21ade2907cfd40c28783192ff31c16a74dc

commit 85caf21ade2907cfd40c28783192ff31c16a74dc
Author: Tomasz Maciej Nowak <tmn505 at gmail.com>
AuthorDate: Fri Dec 18 15:46:21 2020 +0100

    mvebu: macchiatobin-singleshot: enable heartbeat LED
    
    With board revision 1.3, SolidRun moved the power LED to the middle of
    the board. In old place of power LED a GPIO controllable heartbeat LED
    was added. This commit touches only Single Shot variant, because all
    have revision 1.3. Some boards could be placed in an enclosure, therefore
    the LED18 is enabled by default, since that'll be the only visible
    indicator that the board is operating.
    
    Ref: http://wiki.macchiatobin.net/tiki-index.php?page=Schematics#Revision1.3_Electrical_Design_Changes
    Ref: http://macchiatobin.net/wp-content/uploads/2017/11/MACCHIATOBin-rev-1_3.pdf
    
    Reported-by: Alexandra Alth <alexandra at alth.de>
    Signed-off-by: Tomasz Maciej Nowak <tmn505 at gmail.com>
---
 target/linux/mvebu/image/cortexa72.mk              |  2 +-
 ...64-dts-mcbin-singleshot-add-heartbeat-LED.patch | 65 ++++++++++++++++++++++
 2 files changed, 66 insertions(+), 1 deletion(-)

diff --git a/target/linux/mvebu/image/cortexa72.mk b/target/linux/mvebu/image/cortexa72.mk
index 1440c07a0b..8bd4581766 100644
--- a/target/linux/mvebu/image/cortexa72.mk
+++ b/target/linux/mvebu/image/cortexa72.mk
@@ -38,7 +38,7 @@ define Device/marvell_macchiatobin-singleshot
   DEVICE_ALT0_VENDOR := SolidRun
   DEVICE_ALT0_MODEL := Armada 8040 Community Board
   DEVICE_ALT0_VARIANT := Single Shot
-  DEVICE_PACKAGES += kmod-i2c-mux-pca954x
+  DEVICE_PACKAGES += kmod-i2c-mux-pca954x kmod-ledtrig-heartbeat
   DEVICE_DTS := armada-8040-mcbin-singleshot
   SUPPORTED_DEVICES := marvell,armada8040-mcbin-singleshot
 endef
diff --git a/target/linux/mvebu/patches-5.4/028-arm64-dts-mcbin-singleshot-add-heartbeat-LED.patch b/target/linux/mvebu/patches-5.4/028-arm64-dts-mcbin-singleshot-add-heartbeat-LED.patch
new file mode 100644
index 0000000000..c3abae60a6
--- /dev/null
+++ b/target/linux/mvebu/patches-5.4/028-arm64-dts-mcbin-singleshot-add-heartbeat-LED.patch
@@ -0,0 +1,65 @@
+From da57203dc7fd556fbb3f0ec7d7d7c0b0e893b386 Mon Sep 17 00:00:00 2001
+From: Tomasz Maciej Nowak <tmn505 at gmail.com>
+Date: Tue, 10 Nov 2020 16:38:31 +0100
+Subject: [PATCH] arm64: dts: mcbin-singleshot: add heartbeat LED
+
+With board revision 1.3, SolidRun moved the power LED to the middle of
+the board. In old place of power LED a GPIO controllable heartbeat LED
+was added. This commit only touches Single Shot variant, since only this
+variant is all revision 1.3.
+
+Note:
+This is slightly modified patch. Some boards could be placed in an
+enclosure, so the LED18 is enabled by default, since that'll be the only
+visible indicator that the board is operating.
+
+Reported-by: Alexandra Alth <alexandra at alth.de>
+Signed-off-by: Tomasz Maciej Nowak <tmn505 at gmail.com>
+Signed-off-by: Gregory CLEMENT <gregory.clement at bootlin.com>
+---
+ .../marvell/armada-8040-mcbin-singleshot.dts  | 22 +++++++++++++++++++
+ 1 file changed, 22 insertions(+)
+
+--- a/arch/arm64/boot/dts/marvell/armada-8040-mcbin-singleshot.dts
++++ b/arch/arm64/boot/dts/marvell/armada-8040-mcbin-singleshot.dts
+@@ -5,6 +5,8 @@
+  * Device Tree file for MACCHIATOBin Armada 8040 community board platform
+  */
+ 
++#include <dt-bindings/leds/common.h>
++
+ #include "armada-8040-mcbin.dtsi"
+ 
+ / {
+@@ -12,6 +14,20 @@
+ 	compatible = "marvell,armada8040-mcbin-singleshot",
+ 			"marvell,armada8040-mcbin", "marvell,armada8040",
+ 			"marvell,armada-ap806-quad", "marvell,armada-ap806";
++
++	leds {
++		compatible = "gpio-leds";
++		pinctrl-0 = <&cp0_led18_pins>;
++		pinctrl-names = "default";
++
++		led18 {
++			gpios = <&cp0_gpio2 1 GPIO_ACTIVE_LOW>;
++			function = LED_FUNCTION_HEARTBEAT;
++			color = <LED_COLOR_ID_GREEN>;
++			linux,default-trigger = "heartbeat";
++			default-state = "on";
++		};
++	};
+ };
+ 
+ &cp0_eth0 {
+@@ -27,3 +43,10 @@
+ 	managed = "in-band-status";
+ 	sfp = <&sfp_eth1>;
+ };
++
++&cp0_pinctrl {
++	cp0_led18_pins: led18-pins {
++		marvell,pins = "mpp33";
++		marvell,function = "gpio";
++	};
++};