linux-kernel - Re: [PATCH v4 2/4] ARM: da850: don't add the emac clock to the clock lookup table twice

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Date:   Mon, 2 Jan 2017 14:56:42 +0530
From:   Sekhar Nori <nsekhar@...com>
To:     Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Kevin Hilman <khilman@...libre.com>,
        Michael Turquette <mturquette@...libre.com>,
        Peter Ujfalusi <peter.ujfalusi@...com>,
        Russell King <linux@...linux.org.uk>,
        Viresh Kumar <viresh.kumar@...aro.org>,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Richard Weinberger <richard@....at>,
        David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Cyrille Pitchen <cyrille.pitchen@...el.com>
CC:     LKML <linux-kernel@...r.kernel.org>,
        arm-soc <linux-arm-kernel@...ts.infradead.org>,
        <linux-pm@...r.kernel.org>
Subject: Re: [PATCH v4 2/4] ARM: da850: don't add the emac clock to the clock
 lookup table twice

On Wednesday 07 December 2016 08:52 PM, Bartosz Golaszewski wrote:
> Similarly to the aemif clock - this screws up the linked list of clock
> children. Create a separate clock for mdio inheriting the rate from
> emac_clk.
> 
> Signed-off-by: Bartosz Golaszewski <bgolaszewski@...libre.com>

Applied with change in headline (see comment on 1/4). Also added a 
comment explaining why mdio clk is needed.

> ---
>  arch/arm/mach-davinci/da850.c | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
> index e9d019c..6b1fbac 100644
> --- a/arch/arm/mach-davinci/da850.c
> +++ b/arch/arm/mach-davinci/da850.c
> @@ -319,6 +319,11 @@ static struct clk emac_clk = {
>  	.gpsc		= 1,
>  };
>  

/*
 * In order to avoid adding the emac_clk to the clock lookup table twice (and
 * screwing up the linked list in the process) create a separate clock for
 * mdio inheriting the rate from emac_clk.
 */

> +static struct clk mdio_clk = {
> +	.name		= "mdio",
> +	.parent		= &emac_clk,
> +};

Thanks,
Sekhar