Hi Tony,
On Mon, 2018-01-15 at 17:11 -0800, Tony Lindgren wrote:
> We can support the RSTCTRL reset registers on many TI SoCs with
> reset-simple.
>
> Cc: Dave Gerlach <d-gerlach@xxxxxx>
> Cc: Mark Rutland <mark.rutland@xxxxxxx>
> Cc: Nishant Menon <nm@xxxxxx>
> Cc: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> Cc: Suman Anna <s-anna@xxxxxx>
> Cc: Tero Kristo <t-kristo@xxxxxx>
> Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
> ---
>
> That's all there is to it :) Naturally this can wait for v4.17
> if necessary.
>
> ---
> .../devicetree/bindings/reset/ti-rstctrl.txt | 29 ++++++++++++++++++++++
> drivers/reset/Kconfig | 2 +-
> drivers/reset/reset-simple.c | 1 +
> 3 files changed, 31 insertions(+), 1 deletion(-)
> create mode 100644 Documentation/devicetree/bindings/reset/ti-rstctrl.txt
>
> diff --git a/Documentation/devicetree/bindings/reset/ti-rstctrl.txt b/Documentation/devicetree/bindings/reset/ti-rstctrl.txt
> new file mode 100644
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/reset/ti-rstctrl.txt
> @@ -0,0 +1,29 @@
> +TI RSTCTRL Reset Controller
> +
> +Required properties:
> +- compatible : "ti,rstctrl"
> +- reg : Should contain 1 register ranges(address and length)
> +- #reset-cells: 1
> +
> +Example:
> +
> + prcm: prcm@200000 {
> + compatible = "ti,am3-prcm", "simple-bus";
> + reg = <0x200000 0x4000>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0 0x200000 0x4000>;
> +
> + prm_gfx: prm@1100 {
> + compatible = "simple-bus";
> + #address-cells = <1>;
> + #size-cells = <1>;
> + ranges = <0 0x1100 0x100>;
> +
> + gfx_rstctrl: rstctrl@4 {
,->
> + | reg = <0x4 0x4>;
> + | #reset-cells = <1>;
> + `-- compatible = "ti,rstctrl";
Looks good to me. Can I move the compatible property when applying?
> + };
> + };
> + };
> diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig
> --- a/drivers/reset/Kconfig
> +++ b/drivers/reset/Kconfig
> @@ -83,7 +83,7 @@ config RESET_PISTACHIO
>
> config RESET_SIMPLE
> bool "Simple Reset Controller Driver" if COMPILE_TEST
> - default ARCH_SOCFPGA || ARCH_STM32 || ARCH_STRATIX10 || ARCH_SUNXI || ARCH_ZX
> + default ARCH_OMAP2PLUS || ARCH_SOCFPGA || ARCH_STM32 || ARCH_STRATIX10 || ARCH_SUNXI || ARCH_ZX
> help
> This enables a simple reset controller driver for reset lines that
> that can be asserted and deasserted by toggling bits in a contiguous,
> diff --git a/drivers/reset/reset-simple.c b/drivers/reset/reset-simple.c
> --- a/drivers/reset/reset-simple.c
> +++ b/drivers/reset/reset-simple.c
> @@ -123,6 +123,7 @@ static const struct of_device_id reset_simple_dt_ids[] = {
> { .compatible = "st,stm32-rcc", },
> { .compatible = "allwinner,sun6i-a31-clock-reset",
> .data = &reset_simple_active_low },
> + { .compatible = "ti,rstctrl", },
> { .compatible = "zte,zx296718-reset",
> .data = &reset_simple_active_low },
> { /* sentinel */ },
regards
Philipp
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