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From: Wolfram Sang <wsa@the-dreams.de>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Chris Brandt <Chris.Brandt@renesas.com>,
	Simon Horman <horms+renesas@verge.net.au>,
	Magnus Damm <magnus.damm@gmail.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
	Wolfram Sang <wsa+renesas@sang-engineering.com>
Subject: Re: [PATCH] ARM: dts: r7s72100: fix sdhi clock define
Date: Mon, 16 Jan 2017 12:40:23 +0100	[thread overview]
Message-ID: <20170116114023.GA3029@katana> (raw)
In-Reply-To: <CAMuHMdX=cNuBSMqvPKYa7J5g7T4dSfHhSjcGdmuOPw_as=6RQQ@mail.gmail.com>

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> > and then in the code do:
> >
> >         struct *cd_clk;
> >         cd_clk = devm_clk_get(&pdev->dev, "cd");
> >         if (cd_clk) {
> >                 clk_prepare_enable(cd_clk);
> >         }
> >
> >   (this simple 1-line fix patch is getting a lot more complicated)
> 
> Disclaimer: I don't know how/if the SDHI core manages clocks, and may
> interfere. Adding Wolfram.

Thanks for the heads up.

We have special callbacks for en-/disabling clocks:
sh_mobile_sdhi_clk_enable() and sh_mobile_sdhi_clk_disable().

I think those functions should get the above if-blocks (without curly
braces) to ensure we always have consistent 00 or 11 settings.


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  reply	other threads:[~2017-01-16 11:40 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-12 18:11 [PATCH] ARM: dts: r7s72100: fix sdhi clock define Chris Brandt
2017-01-12 18:11 ` Chris Brandt
2017-01-12 19:57 ` Geert Uytterhoeven
2017-01-12 20:34   ` Chris Brandt
2017-01-12 20:34     ` Chris Brandt
2017-01-13  8:35     ` Simon Horman
2017-01-13 14:44   ` Chris Brandt
2017-01-13 14:44     ` Chris Brandt
2017-01-13 15:10     ` Geert Uytterhoeven
2017-01-13 15:10       ` Geert Uytterhoeven
2017-01-13 17:16       ` Chris Brandt
2017-01-13 17:16         ` Chris Brandt
2017-01-13 17:31         ` Geert Uytterhoeven
2017-01-13 17:56           ` Chris Brandt
2017-01-13 17:56             ` Chris Brandt
2017-01-16 10:36             ` Geert Uytterhoeven
2017-01-16 10:36               ` Geert Uytterhoeven
2017-01-16 11:40               ` Wolfram Sang [this message]
2017-01-17  4:27                 ` Chris Brandt
2017-01-17  4:27                   ` Chris Brandt
2017-01-17  8:21                   ` Wolfram Sang
2017-01-17  8:21                     ` Wolfram Sang
2017-01-17  9:16                     ` Geert Uytterhoeven
2017-01-17  9:16                       ` Geert Uytterhoeven
2017-01-17  9:45                       ` Wolfram Sang
2017-01-17  9:52                         ` Geert Uytterhoeven
2017-01-17  9:57                           ` Wolfram Sang
2017-01-17  9:57                             ` Wolfram Sang
2017-01-17 10:00                             ` Geert Uytterhoeven
2017-01-17 10:00                               ` Geert Uytterhoeven
2017-01-17 14:48                         ` Chris Brandt
2017-01-17 18:42                         ` Chris Brandt
2017-01-17 19:23                           ` Wolfram Sang
2017-01-17 19:23                             ` Wolfram Sang

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