diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.1/0209-Build-i2c_gpio-module-and-add-a-device-tree-overlay-.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.1/0209-Build-i2c_gpio-module-and-add-a-device-tree-overlay-.patch | 96 |
1 files changed, 0 insertions, 96 deletions
diff --git a/target/linux/brcm2708/patches-4.1/0209-Build-i2c_gpio-module-and-add-a-device-tree-overlay-.patch b/target/linux/brcm2708/patches-4.1/0209-Build-i2c_gpio-module-and-add-a-device-tree-overlay-.patch deleted file mode 100644 index 573f179343..0000000000 --- a/target/linux/brcm2708/patches-4.1/0209-Build-i2c_gpio-module-and-add-a-device-tree-overlay-.patch +++ /dev/null @@ -1,96 +0,0 @@ -From 43833958324dc349e49c0e4e2fa6fe36ebc7508d Mon Sep 17 00:00:00 2001 -From: Alistair Buxton <a.j.buxton@gmail.com> -Date: Sun, 1 Nov 2015 22:27:56 +0000 -Subject: [PATCH 209/222] Build i2c_gpio module and add a device tree overlay - to configure it. - ---- - arch/arm/boot/dts/overlays/Makefile | 1 + - arch/arm/boot/dts/overlays/README | 11 ++++++++++ - arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts | 28 +++++++++++++++++++++++++ - arch/arm/configs/bcm2709_defconfig | 1 + - arch/arm/configs/bcmrpi_defconfig | 1 + - 5 files changed, 42 insertions(+) - create mode 100644 arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts - ---- a/arch/arm/boot/dts/overlays/Makefile -+++ b/arch/arm/boot/dts/overlays/Makefile -@@ -25,6 +25,7 @@ dtb-$(RPI_DT_OVERLAYS) += hifiberry-digi - dtb-$(RPI_DT_OVERLAYS) += hy28a-overlay.dtb - dtb-$(RPI_DT_OVERLAYS) += hy28b-overlay.dtb - dtb-$(RPI_DT_OVERLAYS) += i2c-rtc-overlay.dtb -+dtb-$(RPI_DT_OVERLAYS) += i2c-gpio-overlay.dtb - dtb-$(RPI_DT_OVERLAYS) += i2s-mmap-overlay.dtb - dtb-$(RPI_DT_OVERLAYS) += iqaudio-dac-overlay.dtb - dtb-$(RPI_DT_OVERLAYS) += iqaudio-dacplus-overlay.dtb ---- a/arch/arm/boot/dts/overlays/README -+++ b/arch/arm/boot/dts/overlays/README -@@ -284,6 +284,17 @@ Params: speed Display - ledgpio GPIO used to control backlight - - -+Name: i2c-gpio -+Info: Adds support for software i2c controller on gpio pins -+Load: dtoverlay=i2c-gpio,<param> -+Params: i2c_gpio_sda GPIO used for I2C data (default "23") -+ -+ i2c_gpio_scl GPIO used for I2C clock (default "24") -+ -+ i2c_gpio_delay_us Clock delay in microseconds -+ (default "2" = ~100kHz) -+ -+ - Name: i2c-rtc - Info: Adds support for a number of I2C Real Time Clock devices - Load: dtoverlay=i2c-rtc,<param> ---- /dev/null -+++ b/arch/arm/boot/dts/overlays/i2c-gpio-overlay.dts -@@ -0,0 +1,28 @@ -+// Overlay for i2c_gpio bitbanging host bus. -+/dts-v1/; -+/plugin/; -+ -+/ { -+ compatible = "brcm,bcm2708"; -+ -+ fragment@0 { -+ target-path = "/"; -+ __overlay__ { -+ i2c_gpio: i2c@0 { -+ compatible = "i2c-gpio"; -+ gpios = <&gpio 23 0 /* sda */ -+ &gpio 24 0 /* scl */ -+ >; -+ i2c-gpio,delay-us = <2>; /* ~100 kHz */ -+ #address-cells = <1>; -+ #size-cells = <0>; -+ }; -+ }; -+ }; -+ __overrides__ { -+ i2c_gpio_sda = <&i2c_gpio>,"gpios:4"; -+ i2c_gpio_scl = <&i2c_gpio>,"gpios:16"; -+ i2c_gpio_delay_us = <&i2c_gpio>,"i2c-gpio,delay-us:0"; -+ }; -+}; -+ ---- a/arch/arm/configs/bcm2709_defconfig -+++ b/arch/arm/configs/bcm2709_defconfig -@@ -593,6 +593,7 @@ CONFIG_BCM_VC_SM=y - CONFIG_I2C=y - CONFIG_I2C_CHARDEV=m - CONFIG_I2C_BCM2708=m -+CONFIG_I2C_GPIO=m - CONFIG_SPI=y - CONFIG_SPI_BCM2835=m - CONFIG_SPI_BCM2708=m ---- a/arch/arm/configs/bcmrpi_defconfig -+++ b/arch/arm/configs/bcmrpi_defconfig -@@ -586,6 +586,7 @@ CONFIG_BCM_VC_SM=y - CONFIG_I2C=y - CONFIG_I2C_CHARDEV=m - CONFIG_I2C_BCM2708=m -+CONFIG_I2C_GPIO=m - CONFIG_SPI=y - CONFIG_SPI_BCM2835=m - CONFIG_SPI_BCM2708=m |