[PATCH v2 0/2] ARM/arm64: renesas: Stop using drivers/sh/

[PATCH v2 0/2] ARM/arm64: renesas: Stop using drivers/sh/

[Geert Uytterhoeven]

	Hi Simon, Magnus,

Now CONFIG_PM and CONFIG_PM_GENERIC_DOMAINS are enabled unconditionally
for Renesas ARM-based SoCs, the legacy clock domain is no longer used on
these SoCs, and we can return drivers/sh/ to SuperH.

Both patches were extracted from series "[PATCH 0/4] Enable PM and
PM_GENERIC_DOMAINS for SoCs with PM Domains", and updated, hence the
v2.

Note that this does break booting R-Car Gen2 boards using pre-v4.3 DTSes
that don't have power-domains properties, as this relied on the legacy
clock domain.

Thanks!

Geert Uytterhoeven (2):
  drivers: sh: Stop using the legacy clock domain on ARM
  MAINTAINERS: Drop drivers/sh/ for Renesas ARM

 MAINTAINERS             | 1 -
 drivers/Makefile        | 1 -
 drivers/sh/pm_runtime.c | 9 ---------
 3 files changed, 11 deletions(-)

-- 
1.9.1

Gr{oetje,eeting}s,

						Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
							    -- Linus Torvalds

[PATCH v2 1/2] drivers: sh: Stop using the legacy clock domain on ARM

[Geert Uytterhoeven]

Since commits 71d076ceb245f0d9 ("ARM: shmobile: Enable PM and
PM_GENERIC_DOMAINS for SoCs with PM Domains") and 2ee98234b88174f2
("arm64: renesas: Enable PM and PM_GENERIC_DOMAINS for SoCs with PM
Domains"), CONFIG_PM and CONFIG_PM_GENERIC_DOMAINS are enabled
unconditionally for Renesas ARM-based SoCs. Hence the legacy clock
domain is no longer used on these SoCs.

Remove the related support code, and stop entering drivers/sh/ on ARM.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
v2:
  - Extracted from series "[PATCH 0/4] Enable PM and PM_GENERIC_DOMAINS
    for SoCs with PM Domains",
  - Rebased,
  - Updated patch description with commit IDs.

Notes:
  - This does break booting R-Car Gen2 boards using pre-v4.3 DTSes that
    don't have power-domains properties,
---
 drivers/Makefile        | 1 -
 drivers/sh/pm_runtime.c | 9 ---------
 2 files changed, 10 deletions(-)

diff --git a/drivers/Makefile b/drivers/Makefile
index 8f5d076baeb0e832..6afdb78e21382538 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -127,7 +127,6 @@ obj-$(CONFIG_SGI_SN)		+= sn/
 obj-y				+= firmware/
 obj-$(CONFIG_CRYPTO)		+= crypto/
 obj-$(CONFIG_SUPERH)		+= sh/
-obj-$(CONFIG_ARCH_SHMOBILE)	+= sh/
 ifndef CONFIG_ARCH_USES_GETTIMEOFFSET
 obj-y				+= clocksource/
 endif
diff --git a/drivers/sh/pm_runtime.c b/drivers/sh/pm_runtime.c
index a9bac3bf20de14e5..c887ecdaf19b7c10 100644
--- a/drivers/sh/pm_runtime.c
+++ b/drivers/sh/pm_runtime.c
@@ -34,15 +34,6 @@ static struct pm_clk_notifier_block platform_bus_notifier = {
 
 static int __init sh_pm_runtime_init(void)
 {
-	if (IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_ARCH_SHMOBILE)) {
-		if (!of_find_compatible_node(NULL, NULL,
-					     "renesas,cpg-mstp-clocks"))
-			return 0;
-		if (IS_ENABLED(CONFIG_PM_GENERIC_DOMAINS_OF) &&
-		    of_find_node_with_property(NULL, "#power-domain-cells"))
-			return 0;
-	}
-
 	pm_clk_add_notifier(&platform_bus_type, &platform_bus_notifier);
 	return 0;
 }
-- 
1.9.1

[PATCH v2 2/2] MAINTAINERS: Drop drivers/sh/ for Renesas ARM

[Geert Uytterhoeven]

None of the code under drivers/sh/ is used anymore on Renesas ARM.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
v2:
  - Extracted from series "[PATCH 0/4] Enable PM and PM_GENERIC_DOMAINS
    for SoCs with PM Domains",
  - Rebased.
---
 MAINTAINERS | 1 -
 1 file changed, 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 03d537d375503907..c45737b306c97e9a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1605,7 +1605,6 @@ F:	arch/arm/boot/dts/sh*
 F:	arch/arm/configs/shmobile_defconfig
 F:	arch/arm/include/debug/renesas-scif.S
 F:	arch/arm/mach-shmobile/
-F:	drivers/sh/
 F:	drivers/soc/renesas/
 F:	include/linux/soc/renesas/
 
-- 
1.9.1

Re: [PATCH v2 0/2] ARM/arm64: renesas: Stop using drivers/sh/

[Simon Horman]

On Fri, May 20, 2016 at 09:50:53AM +0200, Geert Uytterhoeven wrote:
> 	Hi Simon, Magnus,
> 
> Now CONFIG_PM and CONFIG_PM_GENERIC_DOMAINS are enabled unconditionally
> for Renesas ARM-based SoCs, the legacy clock domain is no longer used on
> these SoCs, and we can return drivers/sh/ to SuperH.
> 
> Both patches were extracted from series "[PATCH 0/4] Enable PM and
> PM_GENERIC_DOMAINS for SoCs with PM Domains", and updated, hence the
> v2.
> 
> Note that this does break booting R-Car Gen2 boards using pre-v4.3 DTSes
> that don't have power-domains properties, as this relied on the legacy
> clock domain.
> 
> Thanks!

Thanks, I have queued this up for v4.8 which should give it a good
amount of time to sit in next.