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From: sassmann@kpanic.de (Stefan Assmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH RFC 2/2] regulator: twl: Re-add clk32kg to get wifi working
Date: Tue, 15 Jul 2014 14:59:14 +0200	[thread overview]
Message-ID: <53C525A2.8080609@kpanic.de> (raw)
In-Reply-To: <20140714181338.GR6800@sirena.org.uk>

On 14.07.2014 20:13, Mark Brown wrote:
> On Mon, Jul 14, 2014 at 02:05:19PM +0200, Stefan Assmann wrote:
>> On 14.07.2014 14:00, Mark Brown wrote:
>
>>> No, you need to implement clocks using the clock API.  Please read the
>>> changelogs for the above commits...
>
>> Yes, that's what I expected. Got any pointers for me how to do this?
>> Never done that before, a little help would be appreciated.
>
> There should be plenty of examples in drivers/clk?

Looking at this more closely it seems to me that it's a regulator thing
after all. In the end it all boils down to a single register write.
twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0x41, 0x8e);
This is a write to the CLK32KG_CFG_STATE [1] register to power on the
device.

I tried moving that to omap4xxx_dt_clk_init() but that won't work
because the twl core structures aren't initialized yet.

Any suggestions?

   Stefan

[1] http://www.cjemicros.f2s.com/public/datasheets/TWL6030_Register_Map.pdf page 196

  reply	other threads:[~2014-07-15 12:59 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-14 11:50 [PATCH RFC 0/2] Enable wifi on pandaboard Stefan Assmann
2014-07-14 11:50 ` [PATCH RFC 1/2] dts: regulator-clk32kg should always be enabled Stefan Assmann
2014-07-14 11:50 ` [PATCH RFC 2/2] regulator: twl: Re-add clk32kg to get wifi working Stefan Assmann
2014-07-14 12:00   ` Mark Brown
2014-07-14 12:05     ` Stefan Assmann
2014-07-14 18:13       ` Mark Brown
2014-07-15 12:59         ` Stefan Assmann [this message]
2014-07-16 21:23           ` Mark Brown
2014-07-17  8:36             ` Stefan Assmann
2014-07-17  9:58               ` Mark Brown
2014-07-24 15:03             ` Stefan Assmann
2014-07-24 17:39               ` Mark Brown
2014-07-29  1:27               ` Mike Turquette

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