From: thomas.petazzoni@free-electrons•com (Thomas Petazzoni)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 2/4] ARM: mvebu: add audio I2S controller to Armada 38x Device Tree
Date: Fri, 27 Feb 2015 15:03:03 +0100 [thread overview]
Message-ID: <20150227150303.2c4ea0e7@free-electrons.com> (raw)
In-Reply-To: <CAPv3WKezrx4jkZNo3PYSOGZtiSJH09+94BaknYNN4xPkB1AxKw@mail.gmail.com>
Dear Marcin Wojtas,
On Thu, 26 Feb 2015 10:05:08 +0100, Marcin Wojtas wrote:
> > Given that this PLL layout is most likely 38x specific, I'd just put it
> > into drivers/clk/mvebu/armada-38x.c.
>
> Audio PLL setting consist of 3 independent registers. Adjacent to them
> there are same regs for setting TDM PLL, however I doubt telephony is
> going to be supported in foreseeable future (if ever).
We might be supporting TDM in the future. However, I see that the TDM
PLL registers are nicely grouped together, and so are the audio PLL
registers. So maybe we can simply have a driver to handle the audio PLL
registers for now, and if needed in the future, add another driver for
the TDM PLL.
> I also have strong suspicion that it looks the same in a39x - Thomas,
> can you take a look into spec and confirm?
As far as I can see there is no audio support and no TDM support in
Armada 39x, and there those TDM PLL and audio PLL registers do not
exist.
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
next prev parent reply other threads:[~2015-02-27 14:03 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-25 21:57 [PATCH 0/4] Armada 38x and 370 audio Marcin Wojtas
2015-02-25 21:57 ` [PATCH 1/4] ASoC: kirkwood: enable Kirkwood driver for Armada 38x platforms Marcin Wojtas
2015-02-25 21:58 ` [PATCH 2/4] ARM: mvebu: add audio I2S controller to Armada 38x Device Tree Marcin Wojtas
2015-02-25 22:21 ` Sebastian Hesselbarth
2015-02-26 0:11 ` Marcin Wojtas
2015-02-26 0:30 ` Sebastian Hesselbarth
2015-02-26 9:05 ` Marcin Wojtas
2015-02-27 14:03 ` Thomas Petazzoni [this message]
2015-02-27 20:22 ` Marcin Wojtas
2015-02-28 9:58 ` Thomas Petazzoni
2015-03-04 12:12 ` Marcin Wojtas
2015-03-04 12:29 ` Thomas Petazzoni
2015-02-25 21:58 ` [PATCH 3/4] ARM: mvebu: add audio support to Armada 385 DB Marcin Wojtas
2015-02-25 21:58 ` [PATCH 4/4] ARM: mvebu: fix routing for analog audio input of Armada 370 DB platform Marcin Wojtas
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