提交 · 2456963c0b736f4111f9c4517ae12f63d332c312 · openanolis / cloud-kernel

24 5月, 2014 14 次提交

PM / devfreq: exynos5: Use devm_devfreq_* function using device resource management · 2456963c

由 Chanwoo Choi 提交于 5月 09, 2014

This patch uses devm_devfreq_add_device()/devm_devfreq_register_opp_notifier()
to control automatically the resource of devfreq.
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Manish Badarkhe <badarkhe.manish@gmail.com>
Cc: Abhilash Kesavan <a.kesavan@samsung.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Signed-off-by: NMyungJoo Ham <myungjoo.ham@samsung.com>

2456963c

PM / devfreq: exynos4: Use devm_devfreq_* function using device resource management · c1b13d4e

由 Chanwoo Choi 提交于 5月 09, 2014

This patch uses devm_devfreq_add_device()/devm_devfreq_register_opp_notifier()
to control automatically the resource of devfreq.
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-samsung-soc@vger.kernel.org
Signed-off-by: NMyungJoo Ham <myungjoo.ham@samsung.com>

c1b13d4e

PM / devfreq: Add devm_devfreq_{register,unregister}_opp_notfier function · d5b040d0

由 Chanwoo Choi 提交于 5月 09, 2014

This patch add resource-managed function for devfreq opp as following
functions. The devm_devfreq_register_opp_notifier() manages automatically
the registration of devfreq opp using device resource management.
- devm_devfreq_register_opp_notifier
- devm_devfreq_unregister_opp_notifier()
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NMyungJoo Ham <myungjoo.ham@samsung.com>

d5b040d0

PM / devfreq: Add resource-managed function for devfreq device · 8cd84092

由 Chanwoo Choi 提交于 5月 09, 2014

This patch add resource-managed function for devfreq device as following
functions. The devm_devfreq_add_device() manages automatically the memory
of devfreq device using device resource management.
- devm_devfreq_add_device()
- devm_devfreq_remove_device()
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: NMyungJoo Ham <myungjoo.ham@samsung.com>

8cd84092

PM / devfreq: Fix devfreq_remove_device() to improve the sequence of resource free · 585fc83e

由 Chanwoo Choi 提交于 5月 09, 2014

This patch modify devfreq_remove_device() to improve the sequence of resource
free. If executing existing devfreq_remove_device(), this function always
executes _remove_devfreq() twice. In result, second _remove_devfreq() always
return error value. So, This patch resolves complicated function sequence
as following:

[Flow sequence before modification]
devfreq_remove_device()
   _remove_devfreq(devfreq, false)
      kfree(devfreq);  /* Free devfreq */
      if (!skip ...) { /* skip is false */
         device_unregister(&devfreq->dev)
         put_device(&devfreq->dev);
            ...
            dev->release()
               devfreq_dev_release()
                  _remove_devfreq(devfreq, true) <- Recall to free devfreq
                  /*
		   * Always return error without freeing resource because
		   * already _remove_devfreq() frees the memory of devfreq.
		   */
   }

[Flow sequence after modification]
devfreq_remove_device
   device_unregister(&devfreq->dev)
   put_device(&devfreq->dev);
      ..
      dev->release()
         devfreq_dev_release()
            _remove_devfreq()
               kfree(devfreq); /* Free devfreq */
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
[Merge conflict resolved by MyungJoo]
Signed-off-by: NMyungJoo Ham <myungjoo.ham@samsung.com>

585fc83e

PM / devfreq: exynos: make more PPMU code common · 26d51853

由 Bartlomiej Zolnierkiewicz 提交于 3月 21, 2014

Move common PPMU code from exynos[45]_bus.c to exynos_ppmu.c.

There should be no functional changes caused by this patch.
Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: NMyungJoo Ham <myungjoo.ham@samsung.com>

26d51853

PM / devfreq: exynos5: introduce struct busfreq_ppmu_data · a94f6b4a

由 Bartlomiej Zolnierkiewicz 提交于 3月 21, 2014

This is a preparation for making more PPMU code common for
EXYNOS devfreq drivers.

There should be no functional changes caused by this patch.
Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: NMyungJoo Ham <myungjoo.ham@samsung.com>

a94f6b4a

PM / devfreq: exynos4: introduce struct busfreq_ppmu_data · f4145270

由 Bartlomiej Zolnierkiewicz 提交于 3月 21, 2014

This is a preparation for making more PPMU code common for
EXYNOS devfreq drivers.

There should be no functional changes caused by this patch.
Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: NMyungJoo Ham <myungjoo.ham@samsung.com>

f4145270

PM / devfreq: exynos4: use common PPMU code · ba778b37

由 Chanwoo Choi 提交于 3月 21, 2014

This patch converts exynos4_bus driver to use common PPMU code
(exynos_ppmu.c) instead of individual functions related to PPC
because PPMU is integrated module with both PPC and Bus event
generator.  When using PPMU to get bus performance read/write
event exynos4_bus driver deson't need to consider memory type.
Signed-off-by: NChanwoo Choi <cw00.choi@samsung.com>
[bzolnier: splitted out changes from the bigger patch]
Signed-off-by: NBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: NMyungJoo Ham <myungjoo.ham@samsung.com>

ba778b37

PM / devfreq: exynos5: Add CONFIG_PM_OPP dependency to fix probe fail · ae29fa1d