Initial commit

target/linux/bcm27xx/patches-5.10/950-0519-overlays-ghost-amp-Minor-tweaks.patch

@@ -0,0 +1,71 @@
+From e88444a73ef7bc16869e60ad1e392129a07a9f2c Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.com>
+Date: Wed, 3 Mar 2021 10:31:13 +0000
+Subject: [PATCH] overlays: ghost-amp: Minor tweaks
+
+1. Reduce the delay between RELAY1 and RELAY2 to 1000ms.
+2. Rename the states to simplify LED control by an external script.
+3. Claim all the required GPIOs, enabling pull-ups on the input.
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.com>
+---
+ .../boot/dts/overlays/ghost-amp-overlay.dts   | 20 ++++++++++++++++---
+ 1 file changed, 17 insertions(+), 3 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
++++ b/arch/arm/boot/dts/overlays/ghost-amp-overlay.dts
+@@ -54,6 +54,8 @@
+ 		__overlay__ {
+ 			amp: ghost-amp {
+ 				compatible = "rpi,gpio-fsm";
++				pinctrl-names = "default";
++				pinctrl-0 = <&ghost_amp_pins>;
+ 
+ 				debug = <0>;
+ 				gpio-controller;
+@@ -77,18 +79,18 @@
+ 
+ 				amp_on_1 {
+ 					set = <RELAY1 1>;
+-					amp_on = <GF_DELAY 1500>;
++					amp_on = <GF_DELAY 1000>;
+ 					amp_off = <ENABLE 0>;
+ 					fault = <FAULT 1>;
+ 				};
+ 
+ 				amp_on {
+ 					set = <RELAY2 1>;
+-					amp_off_wait = <ENABLE 0>;
++					amp_on_wait = <ENABLE 0>;
+ 					fault = <FAULT 1>;
+ 				};
+ 
+-				amp_off_wait {
++				amp_on_wait {
+ 					amp_off_1 = <GF_DELAY (30*60*1000)>,
+ 						    <GF_SHUTDOWN 0>;
+ 					amp_on = <ENABLE 1>;
+@@ -107,11 +109,23 @@
+ 				fault {
+ 					set = <RELAY2 0>,
+ 					      <RELAY1 0>;
++					amp_off = <FAULT 0>;
+ 					shutdown_state;
+ 				};
+ 			};
+ 		};
+ 	};
++
++	fragment@4 {
++		target = <&gpio>;
++		__overlay__ {
++			ghost_amp_pins: ghost_amp_pins {
++				brcm,pins = <5 22 23>;
++				brcm,function = <0 1 1>; /* in out out */
++				brcm,pull = <2 0 0>; /* up none none */
++			};
++		};
++	};
+ 
+ 	__overrides__ {
+ 		fsm_debug = <&amp>,"debug:0";