From: Jyri Sarha <jsarha@ti.com>
To: Fabio Estevam <festevam@gmail.com>,
Russell King - ARM Linux <linux@arm.linux.org.uk>
Cc: Olof Johansson <olof@lixom.net>,
"linux-mmc@vger.kernel.org" <linux-mmc@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
robh+dt@kernel.org, Mark Rutland <mark.rutland@arm.com>,
Pawel Moll <pawel.moll@arm.com>,
ijc+devicetree@hellion.org.ok, Kumar Gala <galak@codeaurora.org>,
chris@printf.net
Subject: Re: [PATCH 1/3] mmc: add support for power-on sequencing through DT
Date: Mon, 27 Jan 2014 10:43:20 +0200 [thread overview]
Message-ID: <52E61C28.1020207@ti.com> (raw)
In-Reply-To: <CAOMZO5DdTP0gimwdsBUZK3wXrnUd2FN3w-FszLQkvCwM8gvPpg@mail.gmail.com>
On 01/24/2014 07:35 PM, Fabio Estevam wrote:
> On Mon, Jan 20, 2014 at 2:48 PM, Russell King - ARM Linux
> <linux@arm.linux.org.uk> wrote:
>
>> So far so good. Now, what about this external oscillator which has its
>> own separate power control. My immediate thought is that this can be
>> specified via card_ext_clock - I would simply need to declare a fixed-rate
>> clock with either a regulator (power switch) controlled via a gpio (which
>> would probably be closer to the hardware) or a gpio as an enable... ah,
>> that requires me to write a common clock driver for that bit since this
>> is currently not modelled by CCF...
>
> Jiry Sarha posted a gpio controlled clock proposal:
> http://www.spinics.net/lists/devicetree/msg16651.html
>
I have not received too much feedback to my patch yet. CCF is a bit new
territory to me, but I think having a separate stackable clk-gpio would
be more flexible than having the gpio property implemented in
clk-fixed-rate.
Anyway, I am happy do it either way as long as I can get a gpio
-controlled clock implementation into the main line.
Cheers,
Jyri
next prev parent reply other threads:[~2014-01-27 8:43 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-20 3:56 [PATCH 0/3] RFC/RFT: Powering on MMC Wifi/BT modules in MMC core Olof Johansson
2014-01-20 3:56 ` [PATCH 1/3] mmc: add support for power-on sequencing through DT Olof Johansson
2014-01-20 8:44 ` Ulf Hansson
2014-01-20 19:13 ` Olof Johansson
2014-01-21 8:55 ` Ulf Hansson
2014-01-21 18:14 ` Olof Johansson
2014-01-22 11:30 ` Mark Brown
2014-01-20 16:36 ` Mark Brown
2014-01-20 16:48 ` Russell King - ARM Linux
2014-01-20 17:03 ` Fabio Estevam
2014-01-20 17:16 ` Russell King - ARM Linux
2014-01-20 18:47 ` Fabio Estevam
2014-01-21 19:19 ` Russell King - ARM Linux
2014-01-24 17:35 ` Fabio Estevam
2014-01-27 8:43 ` Jyri Sarha [this message]
2014-01-27 8:54 ` Chen-Yu Tsai
2014-01-27 9:48 ` Jyri Sarha
2014-01-20 18:58 ` Arnd Bergmann
[not found] ` <201401201958.57997.arnd-r2nGTMty4D4@public.gmane.org>
2014-01-20 19:04 ` Olof Johansson
2014-01-20 19:12 ` Arnd Bergmann
2014-01-20 19:14 ` Fabio Estevam
2014-01-20 19:14 ` Olof Johansson
2014-01-21 7:24 ` Sascha Hauer
2014-01-21 7:25 ` Sascha Hauer
2014-01-21 18:34 ` Tomasz Figa
2014-01-21 21:30 ` Olof Johansson
2014-01-21 21:39 ` Tomasz Figa
2014-01-26 17:26 ` Tomasz Figa
2014-01-27 10:19 ` Ulf Hansson
2014-01-28 0:59 ` Tomasz Figa
2014-01-28 1:08 ` Chris Ball
2014-01-28 10:06 ` Ulf Hansson
2014-01-28 10:48 ` Arnd Bergmann
2014-02-12 18:33 ` Mark Brown
2014-02-13 8:56 ` Ulf Hansson
2014-02-13 9:01 ` Tomasz Figa
2014-02-13 10:42 ` Russell King - ARM Linux
2014-02-13 12:48 ` Arnd Bergmann
2014-02-13 14:41 ` Russell King - ARM Linux
2014-02-13 16:13 ` Arnd Bergmann
2014-02-13 17:31 ` Olof Johansson
2014-02-15 12:18 ` Arnd Bergmann
2014-02-15 12:27 ` Russell King - ARM Linux
2014-02-15 13:09 ` Arnd Bergmann
2014-02-15 13:22 ` Tomasz Figa
2014-02-15 16:21 ` Arnd Bergmann
2014-02-15 20:52 ` Russell King - ARM Linux
2014-02-15 21:35 ` Tomasz Figa
2014-02-15 22:03 ` Russell King - ARM Linux
2014-02-17 13:00 ` Arnd Bergmann
2014-02-17 23:25 ` Mark Brown
2014-01-20 3:56 ` [PATCH 2/3] mmc: dw_mmc: call mmc_of_parse to fill in common options Olof Johansson
2014-01-20 4:53 ` Jaehoon Chung
2014-01-20 3:56 ` [PATCH 3/3] ARM: dts: exynos5250-snow: Enable wifi power-on Olof Johansson
2014-01-30 21:49 ` [PATCH 0/3] RFC/RFT: Powering on MMC Wifi/BT modules in MMC core Russell King - ARM Linux
2014-02-01 16:14 ` Russell King - ARM Linux
2014-02-13 10:36 ` Russell King - ARM Linux
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