On Mon, Feb 22, 2016 at 3:15 AM, Simon Horman
<horms+renesas@xxxxxxxxxxxx> wrote:
> Add fallback compatibility string for R-Car Gen 1 and Gen2 families.
> This is in keeping with the fallback scheme being adopted wherever
> appropriate for drivers for Renesas SoCs.
>
> Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/net/can/rcar_can.txt | 4 +++-
> drivers/net/can/rcar_can.c | 2 ++
> 2 files changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/net/can/rcar_can.txt b/Documentation/devicetree/bindings/net/can/rcar_can.txt
> index 002d8440bf66..036786e1f70d 100644
> --- a/Documentation/devicetree/bindings/net/can/rcar_can.txt
> +++ b/Documentation/devicetree/bindings/net/can/rcar_can.txt
> @@ -6,6 +6,8 @@ Required properties:
> "renesas,can-r8a7779" if CAN controller is a part of R8A7779 SoC.
> "renesas,can-r8a7790" if CAN controller is a part of R8A7790 SoC.
> "renesas,can-r8a7791" if CAN controller is a part of R8A7791 SoC.
> + "renesas,can-gen1" for a generic R-Car Gen1 compatible device.
> + "renesas,can-gen2" for a generic R-Car Gen2 compatible device.
"renesas,rcar-gen1-can", "renesas,rcar-gen2-can"?
(Yeah, "can" looks a lot like "rcar" ;-)
Nothing further to say about SoC-specific vs. generic compatible values?
> - reg: physical base address and size of the R-Car CAN register map.
> - interrupts: interrupt specifier for the sole interrupt.
> - clocks: phandles and clock specifiers for 3 CAN clock inputs.
> @@ -25,7 +27,7 @@ Example
> SoC common .dtsi file:
>
> can0: can@e6e80000 {
> - compatible = "renesas,can-r8a7791";
> + compatible = "renesas,can-r8a7791", "renesas,can-gen2";
"renesas,rcar-gen2-can".
> reg = <0 0xe6e80000 0 0x1000>;
> interrupts = <0 186 IRQ_TYPE_LEVEL_HIGH>;
> clocks = <&mstp9_clks R8A7791_CLK_RCAN0>,
> diff --git a/drivers/net/can/rcar_can.c b/drivers/net/can/rcar_can.c
> index bc46be39549d..c70a1f795933 100644
> --- a/drivers/net/can/rcar_can.c
> +++ b/drivers/net/can/rcar_can.c
> @@ -904,6 +904,8 @@ static const struct of_device_id rcar_can_of_table[] __maybe_unused = {
> { .compatible = "renesas,can-r8a7779" },
> { .compatible = "renesas,can-r8a7790" },
> { .compatible = "renesas,can-r8a7791" },
> + { .compatible = "renesas,can-gen1" },
> + { .compatible = "renesas,can-gen2" },
"renesas,rcar-gen1-can"
"renesas,rcar-gen2-can".
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
