[GIT PULL] Renesas ARM Based SoC Updates for v4.4

[GIT PULL] Renesas ARM Based SoC Updates for v4.4

[Simon Horman]

Hi Olof, Hi Kevin, Hi Arnd,

Please consider these Renesas ARM based SoC updates for v4.4.

This pull request is based "Renesas ARM Based SoC Clk Updates for v4.4",
tagged as clk-for-v4.4, which I have also sent a pull-request for.


The following changes since commit e233d74c30f48108b7affb4e76bfc8f3c76b68ce:

  clk: shmobile: mstp: Consider "zb_clk" suitable for power management (2015-09-18 09:11:37 +0900)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git tags/renesas-soc-for-v4.4

for you to fetch changes up to 8b98d74780ab70147d40400c36059c16c1aea4da:

  ARM: shmobile: R-Mobile: Use CPG/MSTP Clock Domain attach/detach helpers (2015-09-18 09:12:51 +0900)

----------------------------------------------------------------
Renesas ARM Based SoC Updates for v4.4

* ARM: shmobile: R-Mobile: Use CPG/MSTP Clock Domain attach/detach helpers

  This part of a multi-stage effort by Geert Uytterhoeven to add:

  "Clock Domain support to the Clock Pulse Generator (CPG) Module Stop
   (MSTP) Clocks driver using the generic PM Domain, to be used on shmobile
   SoCs without device power domains (R-Car Gen1 and Gen2, RZ).  This allows
   to power-manage the module clocks of SoC devices that are part of the
   CPG/MSTP Clock Domain using Runtime PM, or for system suspend/resume,
   similar to SoCs with device power domains (SH-Mobile and R-Mobile)."

----------------------------------------------------------------
Geert Uytterhoeven (1):
      ARM: shmobile: R-Mobile: Use CPG/MSTP Clock Domain attach/detach helpers

 arch/arm/mach-shmobile/pm-rmobile.c | 35 +++--------------------------------
 1 file changed, 3 insertions(+), 32 deletions(-)

[PATCH] ARM: shmobile: R-Mobile: Use CPG/MSTP Clock Domain attach/detach helpers

[Simon Horman]

From: Geert Uytterhoeven <geert+renesas@glider.be>

The R-Mobile PM Domain driver manages both power domains and a clock
domain.

The clock domain part is very similar to the CPG/MSTP Clock Domain,
which is used on shmobile SoCs without device power domains, except for
the way how clocks suitable for power management are selected:
  - The former uses the first clock tied to the device through the NULL
    con_id, which is a relic from the legacy pm_clk_notifier-based
    method in drivers/sh/pm_runtime.c,
  - The latter looks for suitable clocks in DT, which is more
    future-proof.

All platforms using this driver are now supported in DT-based ARM
multi-platform builds only, hence switch to using the CPG/MSTP Clock
Domain helpers.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/pm-rmobile.c | 35 +++--------------------------------
 1 file changed, 3 insertions(+), 32 deletions(-)

diff --git a/arch/arm/mach-shmobile/pm-rmobile.c b/arch/arm/mach-shmobile/pm-rmobile.c
index a5b96b990aea..89068c8ec50f 100644
--- a/arch/arm/mach-shmobile/pm-rmobile.c
+++ b/arch/arm/mach-shmobile/pm-rmobile.c
@@ -12,6 +12,7 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  */
+#include <linux/clk/shmobile.h>
 #include <linux/console.h>
 #include <linux/delay.h>
 #include <linux/of.h>
@@ -124,36 +125,6 @@ static bool rmobile_pd_active_wakeup(struct device *dev)
 	return true;
 }
 
-static int rmobile_pd_attach_dev(struct generic_pm_domain *domain,
-				 struct device *dev)
-{
-	int error;
-
-	error = pm_clk_create(dev);
-	if (error) {
-		dev_err(dev, "pm_clk_create failed %d\n", error);
-		return error;
-	}
-
-	error = pm_clk_add(dev, NULL);
-	if (error) {
-		dev_err(dev, "pm_clk_add failed %d\n", error);
-		goto fail;
-	}
-
-	return 0;
-
-fail:
-	pm_clk_destroy(dev);
-	return error;
-}
-
-static void rmobile_pd_detach_dev(struct generic_pm_domain *domain,
-				  struct device *dev)
-{
-	pm_clk_destroy(dev);
-}
-
 static void rmobile_init_pm_domain(struct rmobile_pm_domain *rmobile_pd)
 {
 	struct generic_pm_domain *genpd = &rmobile_pd->genpd;
@@ -164,8 +135,8 @@ static void rmobile_init_pm_domain(struct rmobile_pm_domain *rmobile_pd)
 	genpd->dev_ops.active_wakeup	= rmobile_pd_active_wakeup;
 	genpd->power_off		= rmobile_pd_power_down;
 	genpd->power_on			= rmobile_pd_power_up;
-	genpd->attach_dev		= rmobile_pd_attach_dev;
-	genpd->detach_dev		= rmobile_pd_detach_dev;
+	genpd->attach_dev		= cpg_mstp_attach_dev;
+	genpd->detach_dev		= cpg_mstp_detach_dev;
 	__rmobile_pd_power_up(rmobile_pd, false);
 }
 
-- 
2.1.4

[GIT PULL] Renesas ARM Based SoC Updates for v4.4

[Arnd Bergmann]

On Thursday 24 September 2015 14:30:20 Simon Horman wrote:
>   This part of a multi-stage effort by Geert Uytterhoeven to add:
> 
>   "Clock Domain support to the Clock Pulse Generator (CPG) Module Stop
>    (MSTP) Clocks driver using the generic PM Domain, to be used on shmobile
>    SoCs without device power domains (R-Car Gen1 and Gen2, RZ).  This allows
>    to power-manage the module clocks of SoC devices that are part of the
>    CPG/MSTP Clock Domain using Runtime PM, or for system suspend/resume,
>    similar to SoCs with device power domains (SH-Mobile and R-Mobile)."
> 
> 

Merged into next/soc, thanks!

	Arnd