From: Mike Turquette <mturquette@linaro.org>
To: linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] clk: shmobile: fix setting paretn clock rate
Date: Mon, 31 Mar 2014 23:13:35 +0000 [thread overview]
Message-ID: <20140331231335.5762.46624@quantum> (raw)
In-Reply-To: <1396288047-6647-1-git-send-email-ben.dooks@codethink.co.uk>
Quoting Ben Dooks (2014-03-31 10:47:27)
> If the driver needs to change a clock rate, then it must be propogated
> through the MSTP clock to the parent clock (such as shdi0 -> sd0). Without
> this we cannot up-rate default clocks which are really slow (such as the
> mmcif1 which defaults to 12MHz where it could be running at 97MHz)
>
> Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Taken into clk-next.
Regards,
Mike
> ---
> drivers/clk/shmobile/clk-mstp.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/clk/shmobile/clk-mstp.c b/drivers/clk/shmobile/clk-mstp.c
> index 7bfdcfc..9fc754b 100644
> --- a/drivers/clk/shmobile/clk-mstp.c
> +++ b/drivers/clk/shmobile/clk-mstp.c
> @@ -139,7 +139,7 @@ cpg_mstp_clock_register(const char *name, const char *parent_name,
>
> init.name = name;
> init.ops = &cpg_mstp_clock_ops;
> - init.flags = CLK_IS_BASIC;
> + init.flags = CLK_IS_BASIC | CLK_SET_RATE_PARENT;
> init.parent_names = &parent_name;
> init.num_parents = 1;
>
> --
> 1.9.0
>
prev parent reply other threads:[~2014-03-31 23:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-31 17:47 [PATCH] clk: shmobile: fix setting paretn clock rate Ben Dooks
2014-03-31 23:13 ` Mike Turquette [this message]
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