From ab001302c8e1718110bb8839c270d2caa817b214 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 9 Feb 2015 08:45:25 +0100 Subject: dts: update to v3.19-rc1 Signed-off-by: Sascha Hauer --- dts/Bindings/pwm/atmel-hlcdc-pwm.txt | 29 +++++++++++++++++++++++++++++ dts/Bindings/pwm/pwm-bcm2835.txt | 30 ++++++++++++++++++++++++++++++ 2 files changed, 59 insertions(+) create mode 100644 dts/Bindings/pwm/atmel-hlcdc-pwm.txt create mode 100644 dts/Bindings/pwm/pwm-bcm2835.txt (limited to 'dts/Bindings/pwm') diff --git a/dts/Bindings/pwm/atmel-hlcdc-pwm.txt b/dts/Bindings/pwm/atmel-hlcdc-pwm.txt new file mode 100644 index 0000000000..cfda0d57d3 --- /dev/null +++ b/dts/Bindings/pwm/atmel-hlcdc-pwm.txt @@ -0,0 +1,29 @@ +Device-Tree bindings for Atmel's HLCDC (High-end LCD Controller) PWM driver + +The Atmel HLCDC PWM is subdevice of the HLCDC MFD device. +See ../mfd/atmel-hlcdc.txt for more details. + +Required properties: + - compatible: value should be one of the following: + "atmel,hlcdc-pwm" + - pinctr-names: the pin control state names. Should contain "default". + - pinctrl-0: should contain the pinctrl states described by pinctrl + default. + - #pwm-cells: should be set to 3. This PWM chip use the default 3 cells + bindings defined in pwm.txt in this directory. + +Example: + + hlcdc: hlcdc@f0030000 { + compatible = "atmel,sama5d3-hlcdc"; + reg = <0xf0030000 0x2000>; + clocks = <&lcdc_clk>, <&lcdck>, <&clk32k>; + clock-names = "periph_clk","sys_clk", "slow_clk"; + + hlcdc_pwm: hlcdc-pwm { + compatible = "atmel,hlcdc-pwm"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_lcd_pwm>; + #pwm-cells = <3>; + }; + }; diff --git a/dts/Bindings/pwm/pwm-bcm2835.txt b/dts/Bindings/pwm/pwm-bcm2835.txt new file mode 100644 index 0000000000..fb6fb31bc4 --- /dev/null +++ b/dts/Bindings/pwm/pwm-bcm2835.txt @@ -0,0 +1,30 @@ +BCM2835 PWM controller (Raspberry Pi controller) + +Required properties: +- compatible: should be "brcm,bcm2835-pwm" +- reg: physical base address and length of the controller's registers +- clock: This clock defines the base clock frequency of the PWM hardware + system, the period and the duty_cycle of the PWM signal is a multiple of + the base period. +- #pwm-cells: Should be 2. See pwm.txt in this directory for a description of + the cells format. + +Examples: + +pwm@2020c000 { + compatible = "brcm,bcm2835-pwm"; + reg = <0x2020c000 0x28>; + clocks = <&clk_pwm>; + #pwm-cells = <2>; +}; + +clocks { + .... + clk_pwm: pwm { + compatible = "fixed-clock"; + reg = <3>; + #clock-cells = <0>; + clock-frequency = <9200000>; + }; + .... +}; -- cgit v1.2.3