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Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0931-overlays-Add-maxtherm-overlay-for-MAX6675-31855.patch')
-rw-r--r--target/linux/bcm27xx/patches-5.4/950-0931-overlays-Add-maxtherm-overlay-for-MAX6675-31855.patch238
1 files changed, 0 insertions, 238 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0931-overlays-Add-maxtherm-overlay-for-MAX6675-31855.patch b/target/linux/bcm27xx/patches-5.4/950-0931-overlays-Add-maxtherm-overlay-for-MAX6675-31855.patch
deleted file mode 100644
index 882cb8df5e..0000000000
--- a/target/linux/bcm27xx/patches-5.4/950-0931-overlays-Add-maxtherm-overlay-for-MAX6675-31855.patch
+++ /dev/null
@@ -1,238 +0,0 @@
-From 56e726d1631c9551530b8db4127352c64c3cb94d Mon Sep 17 00:00:00 2001
-From: Dougie Lawson <dl1ims@gmail.com>
-Date: Mon, 27 Jul 2020 23:52:40 +0100
-Subject: [PATCH] overlays: Add maxtherm overlay for MAX6675/31855
-
-Add an overlay - maxtherm - to support the MAX6675 and MAX31855 family
-of thermocouples.
-
-Developed from an original set of overlays by Dougie Lawson.
-
-See: https://github.com/raspberrypi/linux/pull/3763
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.com>
----
- arch/arm/boot/dts/overlays/Makefile | 1 +
- arch/arm/boot/dts/overlays/README | 30 ++++
- .../boot/dts/overlays/maxtherm-overlay.dts | 166 ++++++++++++++++++
- 3 files changed, 197 insertions(+)
- create mode 100644 arch/arm/boot/dts/overlays/maxtherm-overlay.dts
-
---- a/arch/arm/boot/dts/overlays/Makefile
-+++ b/arch/arm/boot/dts/overlays/Makefile
-@@ -98,6 +98,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
- justboom-digi.dtbo \
- ltc294x.dtbo \
- max98357a.dtbo \
-+ maxtherm.dtbo \
- mbed-dac.dtbo \
- mcp23017.dtbo \
- mcp23s17.dtbo \
---- a/arch/arm/boot/dts/overlays/README
-+++ b/arch/arm/boot/dts/overlays/README
-@@ -1622,6 +1622,36 @@ Params: no-sdmode Driver d
- of the DAC (default GPIO4 if parameter omitted).
-
-
-+Name: maxtherm
-+Info: Configure a MAX6675 or MAX31855 thermocouple as an IIO device.
-+
-+ For devices on spi1 or spi2, the interfaces should be enabled
-+ with one of the spi1-1/2/3cs and/or spi2-1/2/3cs overlays.
-+ The overlay expects to disable the relevant spidev node, so also using
-+ e.g. cs0_spidev=off is unnecessary.
-+
-+ Note: with the 5.7 kernel (and later) there will also be
-+ overlays for MAX31855E, MAX31855J, MAX31855K,
-+ MAX31885N, MAX31855R, MAX31855S and MAX31855T.
-+
-+ Example:
-+ MAX31855 on /dev/spidev0.0
-+ dtoverlay=maxtherm,spi0-0,max31855
-+
-+Load: dtoverlay=maxtherm,<param>=<val>
-+Params: spi<n>-<m> Configure device at spi<n>, cs<m>
-+ (boolean, required)
-+ max6675 Enable support for the MAX6675 (default)
-+ max31855 Enable support for the MAX31855
-+ max31855e Enable support for the MAX31855E
-+ max31855j Enable support for the MAX31855J
-+ max31855k Enable support for the MAX31855K
-+ max31855n Enable support for the MAX31855N
-+ max31855r Enable support for the MAX31855R
-+ max31855s Enable support for the MAX31855S
-+ max31855t Enable support for the MAX31855T
-+
-+
- Name: mbed-dac
- Info: Configures the mbed AudioCODEC (TLV320AIC23B)
- Load: dtoverlay=mbed-dac
---- /dev/null
-+++ b/arch/arm/boot/dts/overlays/maxtherm-overlay.dts
-@@ -0,0 +1,166 @@
-+/*
-+ * Universal device tree overlay for SPI devices
-+ */
-+
-+/dts-v1/;
-+/plugin/;
-+
-+/ {
-+ compatible = "brcm,bcm2835";
-+
-+ fragment@0 {
-+ target = <&spidev0>;
-+ __dormant__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@1 {
-+ target = <&spidev1>;
-+ __dormant__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@2 {
-+ target-path = "spi1/spidev@0";
-+ __dormant__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@3 {
-+ target-path = "spi1/spidev@1";
-+ __dormant__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@4 {
-+ target-path = "spi1/spidev@2";
-+ __dormant__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@5 {
-+ target-path = "spi2/spidev@0";
-+ __dormant__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@6 {
-+ target-path = "spi2/spidev@1";
-+ __dormant__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ fragment@7 {
-+ target-path = "spi2/spidev@2";
-+ __dormant__ {
-+ status = "disabled";
-+ };
-+ };
-+
-+ maxfrag: fragment@8 {
-+ target = <&spi0>;
-+ __overlay__ {
-+ status = "okay";
-+ #address-cells = <1>;
-+ #size-cells = <0>;
-+
-+ max: maxtherm@0 {
-+ compatible = "maxim,max6675";
-+ reg = <0>;
-+ spi-max-frequency = <500000>;
-+ };
-+ };
-+ };
-+
-+ fragment@9 {
-+ target = <&max>;
-+ __dormant__ {
-+ compatible = "maxim,max31855e", "maxim,max31855";
-+ };
-+ };
-+
-+ fragment@10 {
-+ target = <&max>;
-+ __dormant__ {
-+ compatible = "maxim,max31855j", "maxim,max31855";
-+ };
-+ };
-+
-+ fragment@11 {
-+ target = <&max>;
-+ __dormant__ {
-+ compatible = "maxim,max31855k", "maxim,max31855";
-+ };
-+ };
-+
-+ fragment@12 {
-+ target = <&max>;
-+ __dormant__ {
-+ compatible = "maxim,max31855n", "maxim,max31855";
-+ };
-+ };
-+
-+ fragment@13 {
-+ target = <&max>;
-+ __dormant__ {
-+ compatible = "maxim,max31855r", "maxim,max31855";
-+ };
-+ };
-+
-+ fragment@14 {
-+ target = <&max>;
-+ __dormant__ {
-+ compatible = "maxim,max31855s", "maxim,max31855";
-+ };
-+ };
-+
-+ fragment@15 {
-+ target = <&max>;
-+ __dormant__ {
-+ compatible = "maxim,max31855t", "maxim,max31855";
-+ };
-+ };
-+
-+ __overrides__ {
-+ spi0-0 = <0>, "+0",
-+ <&maxfrag>,"target:0=",<&spi0>,
-+ <&max>,"reg:0=0";
-+ spi0-1 = <0>, "+1",
-+ <&maxfrag>,"target:0=",<&spi0>,
-+ <&max>,"reg:0=1";
-+ spi1-0 = <0>, "+2",
-+ <&maxfrag>,"target:0=",<&spi1>,
-+ <&max>,"reg:0=0";
-+ spi1-1 = <0>, "+3",
-+ <&maxfrag>,"target:0=",<&spi1>,
-+ <&max>,"reg:0=1";
-+ spi1-2 = <0>, "+4",
-+ <&maxfrag>,"target:0=",<&spi1>,
-+ <&max>,"reg:0=2";
-+ spi2-0 = <0>, "+5",
-+ <&maxfrag>,"target:0=",<&spi2>,
-+ <&max>,"reg:0=0";
-+ spi2-1 = <0>, "+6",
-+ <&maxfrag>,"target:0=",<&spi2>,
-+ <&max>,"reg:0=1";
-+ spi2-2 = <0>, "+7",
-+ <&maxfrag>,"target:0=",<&spi2>,
-+ <&max>,"reg:0=2";
-+ max6675 = <&max>,"compatible=maxim,max6675";
-+ max31855 = <&max>,"compatible=maxim,max31855";
-+ max31855e = <0>,"+9";
-+ max31855j = <0>,"+10";
-+ max31855k = <0>,"+11";
-+ max31855n = <0>,"+12";
-+ max31855r = <0>,"+13";
-+ max31855s = <0>,"+14";
-+ max31855t = <0>,"+15";
-+ };
-+};
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