linux-kernel - Re: [PATCH 2/3] ARM: dts: Update the parent for Audss clocks in Exynos5420

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Date:	Wed, 11 Jun 2014 17:58:55 +0200
From:	Javier Martinez Canillas <javier@...hile0.org>
To:	Tushar Behera <tushar.b@...sung.com>
Cc:	Linux Kernel <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	linux-samsung-soc@...r.kernel.org,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>, mturquette@...aro.org,
	t.figa@...sung.com, Russell King <linux@....linux.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Mark Rutland <mark.rutland@....com>,
	Pawel Moll <pawel.moll@....com>,
	Rob Herring <robh+dt@...nel.org>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Kevin Hilman <khilman@...aro.org>, dianders@...gle.com,
	trblinux@...il.com, Shaik Ameer Basha <shaik.ameer@...sung.com>
Subject: Re: [PATCH 2/3] ARM: dts: Update the parent for Audss clocks in Exynos5420

On Wed, Jun 11, 2014 at 7:32 AM, Tushar Behera <tushar.b@...sung.com> wrote:
> Currently CLK_FOUT_EPLL was set as one of the parents of AUDSS mux.
> As per the user manual, it should be CLK_MAU_EPLL.
>
> The problem surfaced when the bootloader in Peach-pit board set
> the EPLL clock as the parent of AUDSS mux. While booting the kernel,
> we used to get a system hang during late boot if CLK_MAU_EPLL was
> disabled.
>
> Signed-off-by: Tushar Behera <tushar.b@...sung.com>
> Signed-off-by: Shaik Ameer Basha <shaik.ameer@...sung.com>
> Reported-by: Kevin Hilman <khilman@...aro.org>
> ---
>  arch/arm/boot/dts/exynos5420.dtsi |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
> index e385322..79e9119 100644
> --- a/arch/arm/boot/dts/exynos5420.dtsi
> +++ b/arch/arm/boot/dts/exynos5420.dtsi
> @@ -167,7 +167,7 @@
>                 compatible = "samsung,exynos5420-audss-clock";
>                 reg = <0x03810000 0x0C>;
>                 #clock-cells = <1>;
> -               clocks = <&clock CLK_FIN_PLL>, <&clock CLK_FOUT_EPLL>,
> +               clocks = <&clock CLK_FIN_PLL>, <&clock CLK_MAU_EPLL>,
>                          <&clock CLK_SCLK_MAUDIO0>, <&clock CLK_SCLK_MAUPCM0>;
>                 clock-names = "pll_ref", "pll_in", "sclk_audio", "sclk_pcm_in";
>         };
> --
> 1.7.9.5
>
> --

Tested-by: Javier Martinez Canillas <javier.martinez@...labora.co.uk>
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