diff mbox

[v2,1/2] Documentation: dt: add Broadcom BCM7038 PWM controller binding

Message ID 1440440877-10644-2-git-send-email-f.fainelli@gmail.com
State Superseded
Headers show

Commit Message

Florian Fainelli Aug. 24, 2015, 6:27 p.m. UTC
Add a binding documentation for the Broadcom BCM7038 PWM controller found in
BCM7xxx chips.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 .../devicetree/bindings/pwm/brcm,bcm7038-pwm.txt   | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pwm/brcm,bcm7038-pwm.txt

Comments

Florian Fainelli Aug. 28, 2015, 12:47 a.m. UTC | #1
On 24/08/15 11:27, Florian Fainelli wrote:
> Add a binding documentation for the Broadcom BCM7038 PWM controller found in
> BCM7xxx chips.

Got to think about this some more, I will just remove the optional
"clocks" phandle, since the PWM block really needs a input clock to
operate, will respin a v3 with these changes shortly.

> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
>  .../devicetree/bindings/pwm/brcm,bcm7038-pwm.txt   | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pwm/brcm,bcm7038-pwm.txt
> 
> diff --git a/Documentation/devicetree/bindings/pwm/brcm,bcm7038-pwm.txt b/Documentation/devicetree/bindings/pwm/brcm,bcm7038-pwm.txt
> new file mode 100644
> index 000000000000..8b9bc43b561e
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/pwm/brcm,bcm7038-pwm.txt
> @@ -0,0 +1,22 @@
> +Broadcom BCM7038 PWM controller (BCM7xxx Set Top Box PWM controller)
> +
> +Required properties:
> +
> +- compatible: must be "brcm,bcm7038-pwm"
> +- reg: physical base address and length for this controller
> +- #pwm-cells: should be 2. See pwm.txt in this directory for a description
> +  of the cells format.
> +
> +Optional properties:
> +
> +- clocks: a phandle to the reference clock for this block which is fed through
> +  its internal variable clock frequency generator
> +
> +Example:
> +
> +	pwm: pwm@f0408000 {
> +		compatible = "brcm,bcm7038-pwm";
> +		reg = <0xf0408000 0x28>;
> +		#pwm-cells = <2>;
> +		clocks = <&upg_fixed>;
> +	};
>
diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/pwm/brcm,bcm7038-pwm.txt b/Documentation/devicetree/bindings/pwm/brcm,bcm7038-pwm.txt
new file mode 100644
index 000000000000..8b9bc43b561e
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/brcm,bcm7038-pwm.txt
@@ -0,0 +1,22 @@ 
+Broadcom BCM7038 PWM controller (BCM7xxx Set Top Box PWM controller)
+
+Required properties:
+
+- compatible: must be "brcm,bcm7038-pwm"
+- reg: physical base address and length for this controller
+- #pwm-cells: should be 2. See pwm.txt in this directory for a description
+  of the cells format.
+
+Optional properties:
+
+- clocks: a phandle to the reference clock for this block which is fed through
+  its internal variable clock frequency generator
+
+Example:
+
+	pwm: pwm@f0408000 {
+		compatible = "brcm,bcm7038-pwm";
+		reg = <0xf0408000 0x28>;
+		#pwm-cells = <2>;
+		clocks = <&upg_fixed>;
+	};