From: boris.brezillon@free-electrons.com (Boris Brezillon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v9 2/2] pwm: add DT bindings documentation for atmel-hlcdc-pwm driver
Date: Tue, 7 Oct 2014 12:14:20 +0200 [thread overview]
Message-ID: <1412676860-12120-3-git-send-email-boris.brezillon@free-electrons.com> (raw)
In-Reply-To: <1412676860-12120-1-git-send-email-boris.brezillon@free-electrons.com>
The HLCDC IP available in some Atmel SoCs (i.e. sam9x5i.e. at91sam9n12,
at91sam9x5 family or sama5d3 family) provide a PWM device.
The DT bindings used for this PWM device is following the default 3 cells
bindings described in Documentation/devicetree/bindings/pwm/pwm.txt.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
---
.../devicetree/bindings/pwm/atmel-hlcdc-pwm.txt | 29 ++++++++++++++++++++++
1 file changed, 29 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt
diff --git a/Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt b/Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt
new file mode 100644
index 0000000..8a85244
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/atmel-hlcdc-pwm.txt
@@ -0,0 +1,29 @@
+Device-Tree bindings for Atmel's HLCDC (High 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 at 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>;
+ };
+ };
--
1.9.1
next prev parent reply other threads:[~2014-10-07 10:14 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-07 10:14 [PATCH v9 0/2] pwm: add support for atmel-hlcdc-pwm device Boris Brezillon
2014-10-07 10:14 ` [PATCH v9 1/2] " Boris Brezillon
2014-10-07 12:45 ` Nicolas Ferre
2014-10-07 10:14 ` Boris Brezillon [this message]
2014-10-07 12:55 ` [PATCH v9 2/2] pwm: add DT bindings documentation for atmel-hlcdc-pwm driver Nicolas Ferre
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