Re: [PATCH 03/14] DEVICETREE: Add PIC32 clock binding documentation

From: Arnd Bergmann
Date: Sat Nov 21 2015 - 15:49:41 EST


On Friday 20 November 2015 17:17:15 Joshua Henderson wrote:
> +/* PIC32 specific clks */
> +pic32_clktree {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + reg = <0x1f801200 0x200>;
> + compatible = "microchip,pic32-clk";
> + interrupts = <12>;
> + ranges;
> +
> + /* secondary oscillator; external input on SOSCI pin */
> + SOSC:sosc_clk {
> + #clock-cells = <0>;
> + compatible = "microchip,pic32-sosc";
> + clock-frequency = <32768>;
> + reg = <0x1f801200 0x10 /* enable reg */
> + 0x1f801390 0x10>; /* status reg */
> + microchip,bit-mask = <0x02>; /* enable mask */
> + microchip,status-bit-mask = <0x10>; /* status-mask*/
> + };
>

If you want to use the reg property in this way for each cell,
at least use a 'ranges' that only translates the actual registers
like this

ranges = <0 0x1f801200 0x200>

sosc_clk {
...
reg = <0x000 0x10>, <0x190 0x10>;
...
};

Arnd
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