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| author | John Crispin <john@openwrt.org> | 2015-02-11 10:17:55 +0000 |
|---|---|---|
| committer | John Crispin <john@openwrt.org> | 2015-02-11 10:17:55 +0000 |
| commit | 408c9696264f8e25e4e4f6410e93d2edd06e59dd (patch) | |
| tree | 1c9e8fbacb1508e8561c43f87389edf02cfb0955 /target/linux/brcm2708/patches-3.18/0070-Adding-w1-gpio-device-tree-overlays.patch | |
| parent | f90d9d486a8842077e68e90bba2b276ac1336bab (diff) | |
| download | upstream-408c9696264f8e25e4e4f6410e93d2edd06e59dd.tar.gz upstream-408c9696264f8e25e4e4f6410e93d2edd06e59dd.tar.bz2 upstream-408c9696264f8e25e4e4f6410e93d2edd06e59dd.zip | |
brcm2708: update to v3.18
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
SVN-Revision: 44392
Diffstat (limited to 'target/linux/brcm2708/patches-3.18/0070-Adding-w1-gpio-device-tree-overlays.patch')
| -rwxr-xr-x | target/linux/brcm2708/patches-3.18/0070-Adding-w1-gpio-device-tree-overlays.patch | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-3.18/0070-Adding-w1-gpio-device-tree-overlays.patch b/target/linux/brcm2708/patches-3.18/0070-Adding-w1-gpio-device-tree-overlays.patch new file mode 100755 index 0000000000..772a550880 --- /dev/null +++ b/target/linux/brcm2708/patches-3.18/0070-Adding-w1-gpio-device-tree-overlays.patch @@ -0,0 +1,115 @@ +From 2fea9b14e39bd6c64e362ba7d170b67d09206987 Mon Sep 17 00:00:00 2001 +From: Phil Elwell <phil@raspberrypi.org> +Date: Thu, 15 Jan 2015 10:39:06 +0000 +Subject: [PATCH 070/114] Adding w1-gpio device tree overlays + +N.B. Requires firmware supporting multi-target overrides + +w1-gpio-overlay: + Use if a pullup pin is not required. + Parameters: + gpiopin=<i/o pin> // default 4 + +w1-gpio-pullup-overlay: + Use if a pullup pin is required. + Parameters: + gpiopin=<i/o pin> // default 4 + pullup=<pullup pin> // default 5 +--- + arch/arm/boot/dts/w1-gpio-overlay.dts | 37 ++++++++++++++++++++++++++ + arch/arm/boot/dts/w1-gpio-pullup-overlay.dts | 39 ++++++++++++++++++++++++++++ + 2 files changed, 76 insertions(+) + create mode 100644 arch/arm/boot/dts/w1-gpio-overlay.dts + create mode 100644 arch/arm/boot/dts/w1-gpio-pullup-overlay.dts + +diff --git a/arch/arm/boot/dts/w1-gpio-overlay.dts b/arch/arm/boot/dts/w1-gpio-overlay.dts +new file mode 100644 +index 0000000..b2c5ee2 +--- /dev/null ++++ b/arch/arm/boot/dts/w1-gpio-overlay.dts +@@ -0,0 +1,37 @@ ++// Definitions for lirc-rpi module ++/dts-v1/; ++/plugin/; ++ ++/ { ++ compatible = "brcm,bcm2708"; ++ ++ fragment@0 { ++ target-path = "/"; ++ __overlay__ { ++ ++ w1: onewire@0 { ++ compatible = "w1-gpio"; ++ pinctrl-names = "default"; ++ pinctrl-0 = <&w1_pins>; ++ gpios = <&gpio 4 0>; ++ status = "okay"; ++ }; ++ }; ++ }; ++ ++ fragment@1 { ++ target = <&gpio>; ++ __overlay__ { ++ w1_pins: w1_pins { ++ brcm,pins = <4>; ++ brcm,function = <0>; // in (initially) ++ brcm,pull = <0>; // off ++ }; ++ }; ++ }; ++ ++ __overrides__ { ++ gpiopin = <&w1>,"gpios:4", ++ <&w1_pins>,"brcm,pins:0"; ++ }; ++}; +diff --git a/arch/arm/boot/dts/w1-gpio-pullup-overlay.dts b/arch/arm/boot/dts/w1-gpio-pullup-overlay.dts +new file mode 100644 +index 0000000..b3e97c2 +--- /dev/null ++++ b/arch/arm/boot/dts/w1-gpio-pullup-overlay.dts +@@ -0,0 +1,39 @@ ++// Definitions for lirc-rpi module ++/dts-v1/; ++/plugin/; ++ ++/ { ++ compatible = "brcm,bcm2708"; ++ ++ fragment@0 { ++ target-path = "/"; ++ __overlay__ { ++ ++ w1: onewire@0 { ++ compatible = "w1-gpio"; ++ pinctrl-names = "default"; ++ pinctrl-0 = <&w1_pins>; ++ gpios = <&gpio 4 0>, <&gpio 5 1>; ++ status = "okay"; ++ }; ++ }; ++ }; ++ ++ fragment@1 { ++ target = <&gpio>; ++ __overlay__ { ++ w1_pins: w1_pins { ++ brcm,pins = <4 5>; ++ brcm,function = <0 1>; // in out ++ brcm,pull = <0 0>; // off off ++ }; ++ }; ++ }; ++ ++ __overrides__ { ++ gpiopin = <&w1>,"gpios:4", ++ <&w1_pins>,"brcm,pins:0"; ++ pullup = <&w1>,"gpios:16", ++ <&w1_pins>,"brcm,pins:4"; ++ }; ++}; +-- +1.8.3.2 + |