linux-kernel - Re: [PATCH v4 3/3] clk: at91: allow setting all PMC clock parents via DT

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Date:   Mon, 4 May 2020 22:04:31 +0200
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Michał Mirosław <mirq-linux@...e.qmqm.pl>
Cc:     Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Ludovic Desroches <ludovic.desroches@...rochip.com>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        Stephen Boyd <sboyd@...nel.org>, linux-clk@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH v4 3/3] clk: at91: allow setting all PMC clock parents
 via DT

Hi,

On 03/05/2020 19:19:26+0200, Michał Mirosław wrote:
> diff --git a/include/dt-bindings/clock/at91.h b/include/dt-bindings/clock/at91.h
> index c3f4aa6a2d29..adcf608b41fa 100644
> --- a/include/dt-bindings/clock/at91.h
> +++ b/include/dt-bindings/clock/at91.h
> @@ -21,6 +21,9 @@
>  #define PMC_MCK2		4
>  #define PMC_I2S0_MUX		5
>  #define PMC_I2S1_MUX		6
> +#define PMC_PLLACK		7
> +#define PMC_PLLBCK		8
> +#define PMC_AUDIOPLLCK		8		/* SAMA5D2-only, no PLLB there */

Just use 9 here because we can't know for sure that a future SoC won't
have both a PLLB and audio PLL.

>  
>  #ifndef AT91_PMC_MOSCS
>  #define AT91_PMC_MOSCS		0		/* MOSCS Flag */
> -- 
> 2.20.1
> 

-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com