diff mbox

[1/2] clk: at91: add a new compatible string for Flexcom in the DT documentation

Message ID 359f6b85c3a8b51a0ea35bacdbdc0443b9fbedcc.1433263218.git.cyrille.pitchen@atmel.com
State Superseded, archived
Headers show

Commit Message

Cyrille Pitchen June 2, 2015, 4:49 p.m. UTC
This patches documents the new bindings for the Flexcom clock, which will
be introduced by Atmel sama5d2x chips.

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
---
 .../devicetree/bindings/clock/at91-clock.txt         | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

Comments

Sergei Shtylyov June 2, 2015, 7:49 p.m. UTC | #1
Hello.

On 06/02/2015 07:49 PM, Cyrille Pitchen wrote:

> This patches documents the new bindings for the Flexcom clock, which will
> be introduced by Atmel sama5d2x chips.

> Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
> ---
>   .../devicetree/bindings/clock/at91-clock.txt         | 20 ++++++++++++++++++++
>   1 file changed, 20 insertions(+)

> diff --git a/Documentation/devicetree/bindings/clock/at91-clock.txt b/Documentation/devicetree/bindings/clock/at91-clock.txt
> index 7a4d492..df4f40b 100644
> --- a/Documentation/devicetree/bindings/clock/at91-clock.txt
> +++ b/Documentation/devicetree/bindings/clock/at91-clock.txt
[...]
> @@ -461,3 +464,20 @@ For example:
>   		compatible = "atmel,sama5d4-clk-h32mx";
>   		clocks = <&mck>;
>   	};
> +
> +Required properties for flexcom clock:
> +- #clock-cells : from common clock binding; shall be set to 0.
> +- clocks : shall be the Flexcom peripheral clock from PMC.
> +- reg : shall be the range for Flexcom dedicated I/O registers (without USART,
> +  TWI or SPI registers).
> +- atmel,flexcom-mode : shall be a string value among { "spi", "usart", "i2c",
> +  "twi" }. "i2c" and "twi" are synonymous.
> +
> +For example:
> +	flx0: flexcom@f8034000 {

    The ePAPR standard says: "The name of a node should be somewhat generic, 
reflecting the function of the device and not its precise programming model."

[...]

WBR, Sergei

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diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/clock/at91-clock.txt b/Documentation/devicetree/bindings/clock/at91-clock.txt
index 7a4d492..df4f40b 100644
--- a/Documentation/devicetree/bindings/clock/at91-clock.txt
+++ b/Documentation/devicetree/bindings/clock/at91-clock.txt
@@ -77,6 +77,9 @@  Required properties:
 	"atmel,sama5d4-clk-h32mx":
 		at91 h32mx clock
 
+	"atmel,sama5d2-flexcom":
+		at91 flexcom clock
+
 Required properties for SCKC node:
 - reg : defines the IO memory reserved for the SCKC.
 - #size-cells : shall be 0 (reg is used to encode clk id).
@@ -461,3 +464,20 @@  For example:
 		compatible = "atmel,sama5d4-clk-h32mx";
 		clocks = <&mck>;
 	};
+
+Required properties for flexcom clock:
+- #clock-cells : from common clock binding; shall be set to 0.
+- clocks : shall be the Flexcom peripheral clock from PMC.
+- reg : shall be the range for Flexcom dedicated I/O registers (without USART,
+  TWI or SPI registers).
+- atmel,flexcom-mode : shall be a string value among { "spi", "usart", "i2c",
+  "twi" }. "i2c" and "twi" are synonymous.
+
+For example:
+	flx0: flexcom@f8034000 {
+		compatible = "atmel,sama5d2-flexcom";
+		#clock-cells = <0>;
+		reg = <0xf8034000 0x200>;
+		clocks = <&flx0_clk>;
+		atmel,flexcom-mode = "spi";
+	};