linux-kernel - Re: [PATCH 5/7] pwm: i.MX: add devicetree support

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Date:	Wed, 12 Sep 2012 11:04:58 +0200
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	Thierry Reding <thierry.reding@...onic-design.de>
Cc:	linux-arm-kernel@...ts.infradead.org,
	HACHIMI Samir <shachimi@...neo-embedded.com>,
	shawn.guo@...aro.org, linux-kernel@...r.kernel.org,
	Benoît Thébaudeau 
	<benoit.thebaudeau@...ansee.com>, kernel@...gutronix.de,
	Philipp Zabel <p.zabel@...gutronix.de>
Subject: Re: [PATCH 5/7] pwm: i.MX: add devicetree support

On Tue, Sep 11, 2012 at 04:40:43PM +0200, Thierry Reding wrote:
> On Mon, Sep 10, 2012 at 10:59:35AM +0200, Sascha Hauer wrote:
> > From: Philipp Zabel <p.zabel@...gutronix.de>
> > 
> > At the same time remove platform based support. No user for
> > this driver has made it into mainline so far, so all we break
> > is out of tree stuff.
> > 
> > Signed-off-by: Philipp Zabel <p.zabel@...gutronix.de>
> > Signed-off-by: Sascha Hauer <s.hauer@...gutronix.de>
> > Reviewed-by: Shawn Guo <shawn.guo@...aro.org>
> > Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@...ansee.com>
> [...]
> 
> I was just doing some build tests on the series and noticed that it
> fails with this:
> 
> 	  CC [M]  drivers/pwm/pwm-imx.o
> 	/home/thierry.reding/src/kernel/linux-pwm.git/drivers/pwm/pwm-imx.c: In function 'imx_pwm_config_v2':
> 	/home/thierry.reding/src/kernel/linux-pwm.git/drivers/pwm/pwm-imx.c:140:2: error: implicit declaration of function 'cpu_is_mx25' [-Werror=implicit-function-declaration]
> 
> This breaks bisection in the middle of the series. It seems to be
> related to this change.
> 
> > diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c
> > index a1e799e..b4e0ad3 100644
> > --- a/drivers/pwm/pwm-imx.c
> > +++ b/drivers/pwm/pwm-imx.c
> > @@ -16,8 +16,7 @@
> >  #include <linux/clk.h>
> >  #include <linux/io.h>
> >  #include <linux/pwm.h>
> > -#include <mach/hardware.h>
> 
> This probably needs to be postponed to the next patch, until the final
> reference to cpu_is_mx25() is removed.

Oops, you are right. I updated the tag accordingly, and did a full
compile test over this series, so please pull again:


The following changes since commit fea7a08acb13524b47711625eebea40a0ede69a0:

  Linux 3.6-rc3 (2012-08-22 13:29:06 -0700)

are available in the git repository at:

  git://git.pengutronix.de/git/imx/linux-2.6.git tags/imx-pwm-oftree

for you to fetch changes up to a1d38ca9e249e670aa9f608e1cc7491fb4ca45af:

  pwm: i.MX: fix clock lookup (2012-09-12 11:00:55 +0200)

----------------------------------------------------------------
Cleanup i.MX PWM driver and add devicetree support

----------------------------------------------------------------
Philipp Zabel (2):
      pwm: i.MX: add devicetree support
      pwm: i.MX: fix clock lookup

Sascha Hauer (5):
      pwm: i.MX: factor out SoC specific functions
      pwm: i.MX: remove unnecessary if in pwm_[en|dis]able
      pwm: i.MX: add functions to enable/disable pwm.
      pwm: i.MX: Use module_platform_driver
      pwm: i.MX: use per clock unconditionally

 Documentation/devicetree/bindings/pwm/imx-pwm.txt |   17 ++
 drivers/pwm/pwm-imx.c                             |  278 ++++++++++++++-------
 2 files changed, 199 insertions(+), 96 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/pwm/imx-pwm.txt

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