linux-kernel - Re: [PATCH v2 2/4] clk: at91: propagate rate change on system clks

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Message-ID: <20140227004229.12081.25317@quantum>
Date:	Wed, 26 Feb 2014 16:42:29 -0800
From:	Mike Turquette <mturquette@...aro.org>
To:	Jean-Jacques Hiblot <jjhiblot@...phandler.com>,
	nicolas.ferre@...el.com
Cc:	b.brezillon@...rkiz.com, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, jason@...edaemon.net
Subject: Re: [PATCH v2 2/4] clk: at91: propagate rate change on system clks

Quoting Jean-Jacques Hiblot (2014-02-05 00:37:36)
> From: Boris BREZILLON <b.brezillon@...rkiz.com>
> 
> System clks are just gates, and thus do not provide any rate operations.
> Authorize clk rate change to be propagated to system clk parents.
> 
> Signed-off-by: Boris BREZILLON <b.brezillon@...rkiz.com>
> ---
>  drivers/clk/at91/clk-system.c | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/clk/at91/clk-system.c b/drivers/clk/at91/clk-system.c
> index 8f7c043..a98557b 100644
> --- a/drivers/clk/at91/clk-system.c
> +++ b/drivers/clk/at91/clk-system.c
> @@ -84,7 +84,8 @@ at91_clk_register_system(struct at91_pmc *pmc, const char *name,
>          * (see drivers/memory) which would request and enable the ddrck clock.
>          * When this is done we will be able to remove CLK_IGNORE_UNUSED flag.
>          */
> -       init.flags = CLK_IGNORE_UNUSED;
> +       init.flags = CLK_SET_RATE_GATE | CLK_SET_RATE_PARENT |

Just wanted to do a quick sanity check here. Do you really need
CLK_SET_RATE_GATE? Otherwise these patches look fine.

Regards,
Mike

> +                    CLK_IGNORE_UNUSED;
>  
>         sys->id = id;
>         sys->hw.init = &init;
> -- 
> 1.8.5.2
> 
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