linux-kernel - Re: [PATCH v4 7/8] ARM: bcm2835: Tie SPI clock to the core clock rate.

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Message-ID: <20150724152336.GP3436@x1>
Date:	Fri, 24 Jul 2015 16:23:36 +0100
From:	Lee Jones <lee@...nel.org>
To:	Eric Anholt <eric@...olt.net>
Cc:	linux-arm-kernel@...ts.infradead.org,
	linux-rpi-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Stephen Warren <swarren@...dotorg.org>,
	linux-clk@...r.kernel.org, Stephen Boyd <sboyd@...eaurora.org>,
	Mike Turquette <mturquette@...aro.org>
Subject: Re: [PATCH v4 7/8] ARM: bcm2835: Tie SPI clock to the core clock
 rate.

On Mon, 20 Jul 2015, Eric Anholt wrote:

> We were previously using a fixed clock declared in the 2835 DT, but
> it's actually the core clock, and it might not be the same if you had
> adjusted it using the firmware's config.txt.
> 
> Signed-off-by: Eric Anholt <eric@...olt.net>
> Acked-by: Stephen Warren <swarren@...dotorg.org>
> ---
>  arch/arm/boot/dts/bcm2835-rpi.dtsi | 4 ++++
>  1 file changed, 4 insertions(+)

For my own reference:
 Acked-by: Lee Jones <lee@...nel.org>

> diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
> index 9549eb8..0a32123 100644
> --- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
> +++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
> @@ -69,3 +69,7 @@
>  		 <&firmware_clocks RPI_CLOCK_CORE>;
>  	clock-names = "uartclk", "apb_pclk";
>  };
> +
> +&spi {
> +	clocks = <&firmware_clocks RPI_CLOCK_CORE>;
> +};
--
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