diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0231-RPi-config-Add-CONFIG_PWM_PCA9685-for-NXP-PCA9685-dr.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0231-RPi-config-Add-CONFIG_PWM_PCA9685-for-NXP-PCA9685-dr.patch | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0231-RPi-config-Add-CONFIG_PWM_PCA9685-for-NXP-PCA9685-dr.patch b/target/linux/brcm2708/patches-4.4/0231-RPi-config-Add-CONFIG_PWM_PCA9685-for-NXP-PCA9685-dr.patch new file mode 100644 index 0000000000..cced99b911 --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0231-RPi-config-Add-CONFIG_PWM_PCA9685-for-NXP-PCA9685-dr.patch @@ -0,0 +1,92 @@ +From 6273867fcddb010a62be4d1d5dcba124b1661681 Mon Sep 17 00:00:00 2001 +From: Dave Stevenson <6by9@users.noreply.github.com> +Date: Fri, 1 Apr 2016 15:28:46 +0100 +Subject: [PATCH 231/304] RPi config: Add CONFIG_PWM_PCA9685 for NXP PCA9685 + driver over I2C + +Includes DT overlay to configure it. + +Signed-off-by: Dave Stevenson <6by9@users.noreply.github.com> +--- + arch/arm/boot/dts/overlays/Makefile | 1 + + arch/arm/boot/dts/overlays/README | 6 +++++ + .../boot/dts/overlays/i2c-pwm-pca9685a-overlay.dts | 26 ++++++++++++++++++++++ + arch/arm/configs/bcm2709_defconfig | 1 + + arch/arm/configs/bcmrpi_defconfig | 1 + + 5 files changed, 35 insertions(+) + create mode 100644 arch/arm/boot/dts/overlays/i2c-pwm-pca9685a-overlay.dts + +--- a/arch/arm/boot/dts/overlays/Makefile ++++ b/arch/arm/boot/dts/overlays/Makefile +@@ -30,6 +30,7 @@ dtbo-$(RPI_DT_OVERLAYS) += hy28b.dtbo + dtbo-$(RPI_DT_OVERLAYS) += i2c-rtc.dtbo + dtbo-$(RPI_DT_OVERLAYS) += i2c-gpio.dtbo + dtbo-$(RPI_DT_OVERLAYS) += i2c-mux-pca9548a.dtbo ++dtbo-$(RPI_DT_OVERLAYS) += i2c-pwm-pca9685a.dtbo + dtbo-$(RPI_DT_OVERLAYS) += i2c0-bcm2708.dtbo + dtbo-$(RPI_DT_OVERLAYS) += i2c1-bcm2708.dtbo + dtbo-$(RPI_DT_OVERLAYS) += i2s-mmap.dtbo +--- a/arch/arm/boot/dts/overlays/README ++++ b/arch/arm/boot/dts/overlays/README +@@ -366,6 +366,12 @@ Load: dtoverlay=i2c-mux-pca9548a,<para + Params: addr I2C address of PCA9548A (default 0x70) + + ++Name: i2c-pwm-pca9685a ++Info: Adds support for an NXP PCA9685A I2C PWM controller on i2c_arm ++Load: dtoverlay=i2c-pwm-pca9685a,<param>=<val> ++Params: addr I2C address of PCA9685A (default 0x40) ++ ++ + Name: i2c-rtc + Info: Adds support for a number of I2C Real Time Clock devices + Load: dtoverlay=i2c-rtc,<param>=<val> +--- /dev/null ++++ b/arch/arm/boot/dts/overlays/i2c-pwm-pca9685a-overlay.dts +@@ -0,0 +1,26 @@ ++// Definitions for NXP PCA9685A I2C PWM controller on ARM I2C bus. ++/dts-v1/; ++/plugin/; ++ ++/{ ++ compatible = "brcm,bcm2708"; ++ ++ fragment@0 { ++ target = <&i2c_arm>; ++ __overlay__ { ++ #address-cells = <1>; ++ #size-cells = <0>; ++ status = "okay"; ++ ++ pca: pca@40 { ++ compatible = "nxp,pca9685"; ++ #pwm-cells = <2>; ++ reg = <0x40>; ++ status = "okay"; ++ }; ++ }; ++ }; ++ __overrides__ { ++ addr = <&pca>,"reg:0"; ++ }; ++}; +--- a/arch/arm/configs/bcm2709_defconfig ++++ b/arch/arm/configs/bcm2709_defconfig +@@ -1122,6 +1122,7 @@ CONFIG_MCP320X=m + CONFIG_MCP3422=m + CONFIG_DHT11=m + CONFIG_PWM_BCM2835=m ++CONFIG_PWM_PCA9685=m + CONFIG_RASPBERRYPI_FIRMWARE=y + CONFIG_EXT4_FS=y + CONFIG_EXT4_FS_POSIX_ACL=y +--- a/arch/arm/configs/bcmrpi_defconfig ++++ b/arch/arm/configs/bcmrpi_defconfig +@@ -1129,6 +1129,7 @@ CONFIG_MCP320X=m + CONFIG_MCP3422=m + CONFIG_DHT11=m + CONFIG_PWM_BCM2835=m ++CONFIG_PWM_PCA9685=m + CONFIG_RASPBERRYPI_FIRMWARE=y + CONFIG_EXT4_FS=y + CONFIG_EXT4_FS_POSIX_ACL=y |