Re: [PATCH v2 5/6] ARM: dts: Add generic interconnect target module node for MCAN

From: Tony Lindgren
Date: Wed May 30 2018 - 11:04:13 EST


* Faiz Abbas <faiz_abbas@xxxxxx> [180530 14:12]:
> The ti-sysc driver provides support for manipulating the idlemodes
> and interconnect level resets.
...
> --- a/arch/arm/boot/dts/dra76x.dtsi
> +++ b/arch/arm/boot/dts/dra76x.dtsi
> @@ -11,6 +11,25 @@
> / {
> compatible = "ti,dra762", "ti,dra7";
>
> + ocp {
> +
> + target-module@0x42c00000 {
> + compatible = "ti,sysc-dra7-mcan";
> + ranges = <0x0 0x42c00000 0x2000>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + reg = <0x42c01900 0x4>,
> + <0x42c01904 0x4>,
> + <0x42c01908 0x4>;
> + reg-names = "rev", "sysc", "syss";
> + ti,sysc-mask = <(SYSC_OMAP4_SOFTRESET |
> + SYSC_DRA7_MCAN_ENAWAKEUP)>;
> + ti,syss-mask = <1>;
> + clocks = <&wkupaon_clkctrl DRA7_ADC_CLKCTRL 0>;
> + clock-names = "fck";
> + };
> + };
> +
> };

Looks good to me except I think the reset won't do anything currently
with ti-sysc.c unless you specfify also "ti,hwmods" for the module?

Can you please check? It might be worth adding the reset function to
ti-sysc.c for non "ti,hwmods" case and that just might remove the
need for any hwmod code for this module.

Regards,

Tony