From: Lee Jones <lee.jones@linaro.org>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org,
linus.walleij@stericsson.com, arnd@arndb.de,
broonie@opensource.wolfsonmicro.com,
STEricsson_nomadik_linux@list.st.com,
Patrice CHOTARD <patrice.chotard@stericsson.com>,
Ola LILJA2 <ola.o.lilja@stericsson.com>
Subject: Re: [PATCH 04/22] ASoC: Ux500: Move MSP pinctrl setup into the MSP driver
Date: Mon, 20 Aug 2012 12:59:25 +0100 [thread overview]
Message-ID: <20120820115914.GP8450@gmail.com> (raw)
In-Reply-To: <CACRpkda_xOyu9BFGRK4xTsXOO9RCJu7BbU-kPGpttVkR6mDMZg@mail.gmail.com>
On Tue, Aug 14, 2012 at 10:51:02AM +0200, Linus Walleij wrote:
> On Thu, Aug 9, 2012 at 5:47 PM, Lee Jones <lee.jones@linaro.org> wrote:
>
> > In the initial submission of the MSP driver msp1 and msp3's associated
> > pinctrl mechanism was passed back to platform code using a plat_init()
> > call-back routine, but it has no place in platform code. The MSP driver
> > should set this up for the appropriate ports. Instead we use a use_pinctrl
> > identifier which is passed from platform_data/Device Tree which indicates
> > which ports should use pinctrl.
> >
> > CC: alsa-devel@alsa-project.org
> > Signed-off-by: Lee Jones <lee.jones@linaro.org>
>
> This is very good because it rids platform code and makes the driver
> self-contained without strange platform data hooks.
>
> Now details...
>
> > +/* MSP1/3 Tx/Rx usage protection */
> > +static DEFINE_SPINLOCK(msp_rxtx_lock);
> > +
> > +/* Pin modes */
> > +struct pinctrl *pinctrl_p;
> > +struct pinctrl_state *pinctrl_def;
> > +struct pinctrl_state *pinctrl_sleep;
> > +
> > +/* Reference Count */
> > +int pinctrl_rxtx_ref;
>
>
> But wait. These are just local statics. Surelty you can put these into
> struct ux500_msp instead? Here it looks like these will be used for
> all ports, so MSP2 will enable the pins requested by MSP1 etc
> completely broken. So put it into the struct ux500_msp state
> container from ux500_msp_i2s.h where it belongs.
>
> Refer to drivers/tty/serial/amba-pl011.c when in trouble. This
> one is a good pinctrl example.
How do you see the MSP1 and MSP3 usage protection working if I hide it
all away in MSP specific structs?
--
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
next prev parent reply other threads:[~2012-08-20 11:59 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-09 15:47 [PATCH 00/22] mop500 related Audio reorganisation and fixups Lee Jones
2012-08-09 15:47 ` [PATCH 01/22] ARM: ux500: Fix merge error, no matching driver name for 'snd_soc_u8500' Lee Jones
2012-08-14 8:38 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 02/22] ARM: ux500: Ensure probing of Audio devices when Device Tree is enabled Lee Jones
2012-08-14 8:40 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 03/22] ASoC: ab8500: Inform SoC Core that we have our own I/O arrangements Lee Jones
2012-08-14 8:40 ` Linus Walleij
2012-08-14 12:17 ` [alsa-devel] " Takashi Iwai
2012-08-15 14:01 ` Mark Brown
2012-08-09 15:47 ` [PATCH 04/22] ASoC: Ux500: Move MSP pinctrl setup into the MSP driver Lee Jones
2012-08-14 8:51 ` Linus Walleij
2012-08-20 8:09 ` Lee Jones
2012-08-20 11:59 ` Lee Jones [this message]
2012-08-27 23:09 ` Linus Walleij
2012-08-30 13:18 ` Lee Jones
2012-08-09 15:47 ` [PATCH 05/22] ASoC: Ux500: Enable MOP500 driver for Device Tree Lee Jones
2012-08-14 8:52 ` Linus Walleij
2012-09-10 16:45 ` Lee Jones
2012-08-09 15:47 ` [PATCH 06/22] ASoC: Ux500: Enable ux500 MSP " Lee Jones
2012-08-14 8:55 ` Linus Walleij
2012-09-10 16:45 ` Lee Jones
2012-08-09 15:47 ` [PATCH 07/22] ASoC: Ux500: Initialise PCM from MSP probe rather than as a device Lee Jones
2012-08-14 11:08 ` Linus Walleij
2012-09-19 13:33 ` [RESENDING] " Lee Jones
2012-09-20 9:03 ` Ola Lilja
2012-09-20 12:49 ` Mark Brown
2012-09-20 12:52 ` Lee Jones
2012-11-22 14:05 ` Lee Jones
2012-11-23 1:58 ` Mark Brown
2012-11-23 9:12 ` Lee Jones
2012-11-23 10:09 ` Mark Brown
2012-08-09 15:47 ` [PATCH 08/22] ASoC: codecs: Enable AB8500 CODEC for Device Tree Lee Jones
2012-08-14 11:09 ` Linus Walleij
2012-08-14 12:17 ` [alsa-devel] " Takashi Iwai
2012-08-20 11:34 ` [PATCH 1/1] " Lee Jones
2012-08-20 14:36 ` Mark Brown
2012-08-21 11:51 ` Lee Jones
2012-08-21 12:39 ` Mark Brown
2012-08-21 12:58 ` Lee Jones
2012-08-21 13:40 ` Mark Brown
2012-08-09 15:47 ` [PATCH 09/22] Documentation: Define the MOP500 Audio Machine Driver Device Tree bindings Lee Jones
2012-08-09 15:47 ` [PATCH 10/22] Documentation: Define the MSP " Lee Jones
2012-08-09 15:47 ` [PATCH 11/22] ARM: ux500: Clean-up MSP platform code Lee Jones
2012-08-14 11:12 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 12/22] ARM: ux500: Add AB8500 CODEC node to DB8500 Device Tree Lee Jones
2012-08-20 14:34 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 13/22] ARM: ux500: Fork MSP platform registration for step-by-step DT enablement Lee Jones
2012-08-14 11:13 ` Linus Walleij
2012-08-20 8:06 ` Lee Jones
2012-08-27 23:07 ` Linus Walleij
2012-08-28 7:48 ` Lee Jones
2012-08-30 23:56 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 14/22] ARM: ux500: Pass MSP DMA platform data though AUXDATA Lee Jones
2012-08-14 11:14 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 15/22] ARM: ux500: Stop registering the MOP500 Audio driver from platform code Lee Jones
2012-08-14 11:16 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 16/22] ARM: ux500: Stop registering the PCM " Lee Jones
2012-08-14 11:16 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 17/22] ARM: ux500: Remove platform registration of MSP devices Lee Jones
2012-08-14 11:18 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 18/22] ARM: ux500: Rename MSP board file to something more meaningful Lee Jones
2012-08-14 11:20 ` Linus Walleij
2012-08-30 12:31 ` Lee Jones
2012-08-09 15:47 ` [PATCH 19/22] ARM: ux500: Rename db8500.dtsi to dbx5x0.dtsi to encompass the u9500, u8540 and u9540 Lee Jones
2012-08-14 11:22 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 20/22] ARM: ux500: Add nodes for the MSP into Device Tree Lee Jones
2012-08-14 11:23 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 21/22] ARM: ux500: Add all encompassing sound node to the Snowball " Lee Jones
2012-08-14 11:23 ` Linus Walleij
2012-08-09 15:47 ` [PATCH 22/22] Documentation: Add the AB8500 CODEC device to the MFD AB8500 doc Lee Jones
2012-08-14 11:24 ` Linus Walleij
2012-08-09 18:50 ` [PATCH 00/22] mop500 related Audio reorganisation and fixups Mark Brown
2012-08-09 19:40 ` Lee Jones
2012-08-10 8:48 ` Linus Walleij
2012-08-10 9:37 ` Lee Jones
2012-08-14 11:34 ` Linus Walleij
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20120820115914.GP8450@gmail.com \
--to=lee.jones@linaro.org \
--cc=STEricsson_nomadik_linux@list.st.com \
--cc=alsa-devel@alsa-project.org \
--cc=arnd@arndb.de \
--cc=broonie@opensource.wolfsonmicro.com \
--cc=linus.walleij@linaro.org \
--cc=linus.walleij@stericsson.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=ola.o.lilja@stericsson.com \
--cc=patrice.chotard@stericsson.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).