linux-kernel - RE: [PATCH v17 00/12] input: cyapa: instruction of cyapa patches

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Date:	Mon, 5 Jan 2015 01:57:29 +0000
From:	Dudley Du <dudl@...ress.com>
To:	Jeremiah Mahler <jmmahler@...il.com>
CC:	"dmitry.torokhov@...il.com" <dmitry.torokhov@...il.com>,
	"rydberg@...omail.se" <rydberg@...omail.se>,
	"bleung@...gle.com" <bleung@...gle.com>,
	David Solda <dso@...ress.com>,
	"linux-input@...r.kernel.org" <linux-input@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v17 00/12] input: cyapa: instruction of cyapa patches

Thanks, Jeremiah.

It seems the power manage code has been updated in kernel-next,
the same code didn't genereate any error before.
I updated with latest kernel-next, the compiling error also happened.
To fix this code, need to add stubs for cyapa_runtime_suspend() and
cyapa_runtime_resume() when CONFIG_PM_RUNTIME is not defined.

 #ifdef CONFIG_PM_RUNTIME
 static int cyapa_runtime_suspend(struct device *dev)
 {
 struct cyapa *cyapa = dev_get_drvdata(dev);
 int error;

 error = cyapa->ops->set_power_mode(cyapa,
 cyapa->runtime_suspend_power_mode,
 cyapa->runtime_suspend_sleep_time);
 if (error)
 dev_warn(dev, "runtime suspend failed: %d\n", error);

 return 0;
 }

 static int cyapa_runtime_resume(struct device *dev)
 {
 struct cyapa *cyapa = dev_get_drvdata(dev);
 int error;

 error = cyapa->ops->set_power_mode(cyapa, PWR_MODE_FULL_ACTIVE, 0);
 if (error)
 dev_warn(dev, "runtime resume failed: %d\n", error);

 return 0;
 }
+#else
+static inline int cyapa_runtime_suspend(struct device *dev) { return 0; }
+static inline int cyapa_runtime_resume(struct device *dev) { return 0; }
 #endif /* CONFIG_PM_RUNTIME */

 static const struct dev_pm_ops cyapa_pm_ops = {
 SET_SYSTEM_SLEEP_PM_OPS(cyapa_suspend, cyapa_resume)
 SET_RUNTIME_PM_OPS(cyapa_runtime_suspend, cyapa_runtime_resume, NULL)
 };

Thanks,
dudley

> -----Original Message-----
> From: Jeremiah Mahler [mailto:jmmahler@...il.com]
> Sent: 2015年1月1日 0:11
> To: Dudley Du
> Cc: dmitry.torokhov@...il.com; rydberg@...omail.se; bleung@...gle.com;
> David Solda; linux-input@...r.kernel.org; linux-kernel@...r.kernel.org
> Subject: Re: [PATCH v17 00/12] input: cyapa: instruction of cyapa patches
>
> Dudley,
>
> On Wed, Dec 31, 2014 at 09:16:49AM +0800, Dudley Du wrote:
> > V17 patches have below updates, details of other updates see history list:
> > 1) Fix kernel oops when system booting up with finger on TP.
> > 2) Remove unnecessary error log that may to system.
> > 3) Slipt out pm sleep code into cyapa_prepare_wakeup_controls(),
> >    remove #indefs in function body of CONFIG_PM_SLEEP and
> CONFIG_PM_RUNTIME.
> > 4) Supply stubs to cyapa_gen3_ops and cyapa_gen5_ops data structure to avoid
> >    checking for presence of various methods in ops.
> > 6) Fix the meanings of some comments and return error code not clear issue.
> [...]
>
> It has build errors :(
>
>   CHK     include/config/kernel.release
>   CHK     include/generated/uapi/linux/version.h
>   CHK     include/generated/utsrelease.h
>   CALL    scripts/checksyscalls.sh
>   CHK     include/generated/compile.h
>   CHK     kernel/config_data.h
>   CC [M]  drivers/input/mouse/cyapa.o
> In file included from include/linux/device.h:25:0,
>                  from include/linux/i2c.h:30,
>                  from drivers/input/mouse/cyapa.c:18:
> drivers/input/mouse/cyapa.c:1339:21: error: ‘cyapa_runtime_suspend’
> undeclared here (not in a function)
>   SET_RUNTIME_PM_OPS(cyapa_runtime_suspend, cyapa_runtime_resume,
> NULL)
>                      ^
> include/linux/pm.h:347:21: note: in definition of macro ‘SET_RUNTIME_PM_OPS’
>   .runtime_suspend = suspend_fn, \
>                      ^
> drivers/input/mouse/cyapa.c:1339:44: error: ‘cyapa_runtime_resume’
> undeclared here (not in a function)
>   SET_RUNTIME_PM_OPS(cyapa_runtime_suspend, cyapa_runtime_resume,
> NULL)
>                                             ^
> include/linux/pm.h:348:20: note: in definition of macro ‘SET_RUNTIME_PM_OPS’
>   .runtime_resume = resume_fn, \
>                     ^
> scripts/Makefile.build:257: recipe for target 'drivers/input/mouse/cyapa.o' failed
> make[3]: *** [drivers/input/mouse/cyapa.o] Error 1
> scripts/Makefile.build:402: recipe for target 'drivers/input/mouse' failed
> make[2]: *** [drivers/input/mouse] Error 2
> scripts/Makefile.build:402: recipe for target 'drivers/input' failed
> make[1]: *** [drivers/input] Error 2
> make[1]: *** Waiting for unfinished jobs....
> Makefile:955: recipe for target 'drivers' failed
> make: *** [drivers] Error 2
> make: *** Waiting for unfinished jobs....
>
> --
> - Jeremiah Mahler

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