Le 03/06/2015 18:25, Cyrille Pitchen a écrit :
> add a new value "atmel,at91sama5d2-i2c" for the "compatible" property.
Well, here I would like "atmel,sama5d2-i2c" like any other "SAMA5"
product compatibility string out there...
Aka NAK for me ;-)
> add a new optional property "atmel,fifo-size" to enable FIFO support when
> available.
> add missing optional properties "dmas" and "dma-names".
>
> Signed-off-by: Cyrille Pitchen <cyrille.pitchen@xxxxxxxxx>
> ---
> Documentation/devicetree/bindings/i2c/i2c-at91.txt | 29 ++++++++++++++++++++--
> 1 file changed, 27 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/i2c/i2c-at91.txt b/Documentation/devicetree/bindings/i2c/i2c-at91.txt
> index 388f0a2..7c04fd9 100644
> --- a/Documentation/devicetree/bindings/i2c/i2c-at91.txt
> +++ b/Documentation/devicetree/bindings/i2c/i2c-at91.txt
> @@ -2,8 +2,8 @@ I2C for Atmel platforms
>
> Required properties :
> - compatible : Must be "atmel,at91rm9200-i2c", "atmel,at91sam9261-i2c",
> - "atmel,at91sam9260-i2c", "atmel,at91sam9g20-i2c", "atmel,at91sam9g10-i2c"
> - or "atmel,at91sam9x5-i2c"
> + "atmel,at91sam9260-i2c", "atmel,at91sam9g20-i2c", "atmel,at91sam9g10-i2c",
> + "atmel,at91sam9x5-i2c" or "atmel,at91sama5d2-i2c"
Ditto
> - reg: physical base address of the controller and length of memory mapped
> region.
> - interrupts: interrupt number to the cpu.
> @@ -13,6 +13,9 @@ Required properties :
>
> Optional properties:
> - clock-frequency: Desired I2C bus frequency in Hz, otherwise defaults to 100000
> +- dmas: A list of two dma specifiers, one for each entry in dma-names.
> +- dma-names: should contain "tx" and "rx".
> +- atmel,fifo-size: size of the RX and TX FIFOs, if available.
> - Child nodes conforming to i2c bus binding
>
> Examples :
> @@ -32,3 +35,25 @@ i2c0: i2c@fff84000 {
> pagesize = <128>;
> }
> }
> +
> +i2c0: i2c@f8034600 {
> + compatible = "atmel,at91sama5d2-i2c";
Ditto
> + reg = <0xf8034600 0x100>;
> + interrupts = <19 IRQ_TYPE_LEVEL_HIGH 7>;
> + dmas = <&dma0
> + (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1))
> + AT91_XDMAC_DT_PERID(11)>,
> + <&dma0
> + (AT91_XDMAC_DT_MEM_IF(0) | AT91_XDMAC_DT_PER_IF(1))
> + AT91_XDMAC_DT_PERID(12)>;
> + dma-names = "tx", "rx";
> + #address-cells = <1>;
> + #size-cells = <0>;
> + clocks = <&flx0>;
> + atmel,fifo-size = <32>;
> +
> + wm8731: wm8731@1a {
> + compatible = "wm8731";
> + reg = <0x1a>;
> + };
> +};
>
--
Nicolas Ferre
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