brcm2708: update to latest patches from RPi Foundation

[openwrt/staging/dedeckeh.git] / target / linux / brcm2708 / patches-4.19 / 950-0782-overlays-Make-mcp342x-run-time-compatible.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0782-overlays-Make-mcp342x-run-time-compatible.patch b/target/linux/brcm2708/patches-4.19/950-0782-overlays-Make-mcp342x-run-time-compatible.patch
new file mode 100644 (file)
index 0000000..900cbb2
--- /dev/null
+++ b/target/linux/brcm2708/patches-4.19/950-0782-overlays-Make-mcp342x-run-time-compatible.patch
@@ -0,0 +1,209 @@
+From e650f4bfbe9a09e5b75d702884a8ba8d9df6ccdf Mon Sep 17 00:00:00 2001
+From: Phil Elwell <phil@raspberrypi.org>
+Date: Mon, 9 Dec 2019 12:32:20 +0000
+Subject: [PATCH] overlays: Make mcp342x run-time compatible
+
+The order of processing of run-time overlays differs from that done by
+the firmware. This means that certain parameter processing techniques
+are not compatible with run-time use.  The mcp342x overlay is one such
+overlay, but it is easy to change the implementation without changing
+the interface.
+
+See: https://www.raspberrypi.org/forums/viewtopic.php?f=107&t=258294
+
+Signed-off-by: Phil Elwell <phil@raspberrypi.org>
+---
+ .../arm/boot/dts/overlays/mcp342x-overlay.dts | 133 ++++++++++++++----
+ 1 file changed, 102 insertions(+), 31 deletions(-)
+
+--- a/arch/arm/boot/dts/overlays/mcp342x-overlay.dts
++++ b/arch/arm/boot/dts/overlays/mcp342x-overlay.dts
+@@ -8,14 +8,15 @@
+ 
+       fragment@0 {
+               target = <&i2c1>;
+-              __overlay__ {
++              __dormant__ {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+ 
+                       status = "okay";
+ 
+-                      mcp342x: mcp@68 {
++                      mcp3421: mcp@68 {
+                               reg = <0x68>;
++                              compatible = "microchip,mcp3421";
+ 
+                               status = "okay";
+                       };
+@@ -23,71 +24,141 @@
+       };
+ 
+       fragment@1 {
+-              target = <&mcp342x>;
++              target = <&i2c1>;
+               __dormant__ {
+-                      compatible = "microchip,mcp3421";
++                      #address-cells = <1>;
++                      #size-cells = <0>;
++
++                      status = "okay";
++
++                      mcp3422: mcp@68 {
++                              reg = <0x68>;
++                              compatible = "microchip,mcp3422";
++
++                              status = "okay";
++                      };
+               };
+       };
+ 
+       fragment@2 {
+-              target = <&mcp342x>;
++              target = <&i2c1>;
+               __dormant__ {
+-                      compatible = "microchip,mcp3422";
++                      #address-cells = <1>;
++                      #size-cells = <0>;
++
++                      status = "okay";
++
++                      mcp3423: mcp@68 {
++                              reg = <0x68>;
++                              compatible = "microchip,mcp3423";
++
++                              status = "okay";
++                      };
+               };
+       };
+ 
+       fragment@3 {
+-              target = <&mcp342x>;
++              target = <&i2c1>;
+               __dormant__ {
+-                      compatible = "microchip,mcp3423";
++                      #address-cells = <1>;
++                      #size-cells = <0>;
++
++                      status = "okay";
++
++                      mcp3424: mcp@68 {
++                              reg = <0x68>;
++                              compatible = "microchip,mcp3424";
++
++                              status = "okay";
++                      };
+               };
+       };
+ 
+       fragment@4 {
+-              target = <&mcp342x>;
++              target = <&i2c1>;
+               __dormant__ {
+-                      compatible = "microchip,mcp3424";
++                      #address-cells = <1>;
++                      #size-cells = <0>;
++
++                      status = "okay";
++
++                      mcp3425: mcp@68 {
++                              reg = <0x68>;
++                              compatible = "microchip,mcp3425","mcp3425";
++
++                              status = "okay";
++                      };
+               };
+       };
+ 
+       fragment@5 {
+-              target = <&mcp342x>;
++              target = <&i2c1>;
+               __dormant__ {
+-                      compatible = "microchip,mcp3425";
++                      #address-cells = <1>;
++                      #size-cells = <0>;
++
++                      status = "okay";
++
++                      mcp3426: mcp@68 {
++                              reg = <0x68>;
++                              compatible = "microchip,mcp3426";
++
++                              status = "okay";
++                      };
+               };
+       };
+ 
+       fragment@6 {
+-              target = <&mcp342x>;
++              target = <&i2c1>;
+               __dormant__ {
+-                      compatible = "microchip,mcp3426";
++                      #address-cells = <1>;
++                      #size-cells = <0>;
++
++                      status = "okay";
++
++                      mcp3427: mcp@68 {
++                              reg = <0x68>;
++                              compatible = "microchip,mcp3427";
++
++                              status = "okay";
++                      };
+               };
+       };
+ 
+       fragment@7 {
+-              target = <&mcp342x>;
++              target = <&i2c1>;
+               __dormant__ {
+-                      compatible = "microchip,mcp3427";
+-              };
+-      };
++                      #address-cells = <1>;
++                      #size-cells = <0>;
+ 
+-      fragment@8 {
+-              target = <&mcp342x>;
+-              __dormant__ {
+-                      compatible = "microchip,mcp3428";
++                      status = "okay";
++
++                      mcp3428: mcp@68 {
++                              reg = <0x68>;
++                              compatible = "microchip,mcp3428";
++
++                              status = "okay";
++                      };
+               };
+       };
+ 
+       __overrides__ {
+-              addr = <&mcp342x>,"reg:0";
+-              mcp3421 = <0>,"=1";
+-              mcp3422 = <0>,"=2";
+-              mcp3423 = <0>,"=3";
+-              mcp3424 = <0>,"=4";
+-              mcp3425 = <0>,"=5";
+-              mcp3426 = <0>,"=6";
+-              mcp3427 = <0>,"=7";
+-              mcp3428 = <0>,"=8";
++              addr = <&mcp3421>,"reg:0",
++                     <&mcp3422>,"reg:0",
++                     <&mcp3423>,"reg:0",
++                     <&mcp3424>,"reg:0",
++                     <&mcp3425>,"reg:0",
++                     <&mcp3426>,"reg:0",
++                     <&mcp3427>,"reg:0",
++                     <&mcp3428>,"reg:0";
++              mcp3421 = <0>,"=0";
++              mcp3422 = <0>,"=1";
++              mcp3423 = <0>,"=2";
++              mcp3424 = <0>,"=3";
++              mcp3425 = <0>,"=4";
++              mcp3426 = <0>,"=5";
++              mcp3427 = <0>,"=6";
++              mcp3428 = <0>,"=7";
+       };
+ };
+