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- From 7e582eea049788f8f4077e439030b03bd30c3a2b 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 231/381] 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
|
