| Message ID | 1364153255-20664-4-git-send-email-g.liakhovetski@gmx.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Sun, Mar 24, 2013 at 08:27:35PM +0100, Guennadi Liakhovetski wrote: > This patch enables the use of the generic cpufreq-cpu0 driver on kzm9g. > Providing a regulator, a list of OPPs in DT, combined with a virtual > cpufreq-cpu0 platform device and a clock, attached to it is everything, > the cpufreq-cpu0 driver needs. I wonder if it would be possible to re-arange this patch a little. 1) vdd_dvfs is added in this patch but it appears to be used in the previous patch in the series. I wonder if this can be resolved by re-ordering the patches. 2) It includes both kzm9g board and sh73a0 SoC changes. I would prefer if the sh73a0 SoC portion (setup-sh73a0.c) was moved into a separate patch. The arm-soc people like to have separate board and SoC branches. > Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> > --- > > v4: add a cpufreq-cpu0 platform device for the new cpufreq-cpu0 > initialisation procedure > > arch/arm/boot/dts/sh73a0-kzm9g-reference.dts | 6 +++--- > arch/arm/mach-shmobile/Kconfig | 2 ++ > arch/arm/mach-shmobile/setup-sh73a0.c | 5 +++++ > 3 files changed, 10 insertions(+), 3 deletions(-) > > diff --git a/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts b/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts > index dd1cd80..b6f759e 100644 > --- a/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts > +++ b/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts > @@ -78,10 +78,10 @@ > reg = <0x40>; > > regulators { > - sd1 { > + vdd_dvfs: sd1 { > regulator-name = "1.315V CPU"; > - regulator-min-microvolt = <1315000>; > - regulator-max-microvolt = <1335000>; > + regulator-min-microvolt = <1050000>; > + regulator-max-microvolt = <1350000>; > regulator-always-on; > regulator-boot-on; > }; > diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig > index eb3a7ff..8a0420b 100644 > --- a/arch/arm/mach-shmobile/Kconfig > +++ b/arch/arm/mach-shmobile/Kconfig > @@ -134,6 +134,8 @@ config MACH_KZM9G > config MACH_KZM9G_REFERENCE > bool "KZM-A9-GT board - Reference Device Tree Implementation" > depends on ARCH_SH73A0 > + select ARCH_HAS_CPUFREQ > + select ARCH_HAS_OPP > select ARCH_REQUIRE_GPIOLIB > select REGULATOR_FIXED_VOLTAGE if REGULATOR > select SND_SOC_AK4642 if SND_SIMPLE_CARD > diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c > index e8cd93a..0469e84 100644 > --- a/arch/arm/mach-shmobile/setup-sh73a0.c > +++ b/arch/arm/mach-shmobile/setup-sh73a0.c > @@ -1016,6 +1016,8 @@ static const struct of_dev_auxdata sh73a0_auxdata_lookup[] __initconst = { > > void __init sh73a0_add_standard_devices_dt(void) > { > + struct platform_device_info devinfo = { .name = "cpufreq-cpu0", .id = -1, }; > + > /* clocks are setup late during boot in the case of DT */ > sh73a0_clock_init(); > > @@ -1023,6 +1025,9 @@ void __init sh73a0_add_standard_devices_dt(void) > ARRAY_SIZE(sh73a0_devices_dt)); > of_platform_populate(NULL, of_default_bus_match_table, > sh73a0_auxdata_lookup, NULL); > + > + /* Instantiate cpufreq-cpu0 */ > + platform_device_register_full(&devinfo); > } > > static const char *sh73a0_boards_compat_dt[] __initdata = { > -- > 1.7.2.5 >
Hi Simon Thanks for the review On Thu, 4 Apr 2013, Simon Horman wrote: > On Sun, Mar 24, 2013 at 08:27:35PM +0100, Guennadi Liakhovetski wrote: > > This patch enables the use of the generic cpufreq-cpu0 driver on kzm9g. > > Providing a regulator, a list of OPPs in DT, combined with a virtual > > cpufreq-cpu0 platform device and a clock, attached to it is everything, > > the cpufreq-cpu0 driver needs. > > I wonder if it would be possible to re-arange this patch a little. > > 1) vdd_dvfs is added in this patch but it appears to be used in the > previous patch in the series. I wonder if this can be resolved > by re-ordering the patches. Right, I'll change that. > 2) It includes both kzm9g board and sh73a0 SoC changes. > I would prefer if the sh73a0 SoC portion (setup-sh73a0.c) > was moved into a separate patch. The arm-soc people > like to have separate board and SoC branches. Yes, I'll probably just merge the sh73a0-kzm9g-reference.dts hunk into the previous patch. Thanks Guennadi > > > Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> > > --- > > > > v4: add a cpufreq-cpu0 platform device for the new cpufreq-cpu0 > > initialisation procedure > > > > arch/arm/boot/dts/sh73a0-kzm9g-reference.dts | 6 +++--- > > arch/arm/mach-shmobile/Kconfig | 2 ++ > > arch/arm/mach-shmobile/setup-sh73a0.c | 5 +++++ > > 3 files changed, 10 insertions(+), 3 deletions(-) > > > > diff --git a/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts b/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts > > index dd1cd80..b6f759e 100644 > > --- a/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts > > +++ b/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts > > @@ -78,10 +78,10 @@ > > reg = <0x40>; > > > > regulators { > > - sd1 { > > + vdd_dvfs: sd1 { > > regulator-name = "1.315V CPU"; > > - regulator-min-microvolt = <1315000>; > > - regulator-max-microvolt = <1335000>; > > + regulator-min-microvolt = <1050000>; > > + regulator-max-microvolt = <1350000>; > > regulator-always-on; > > regulator-boot-on; > > }; > > diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig > > index eb3a7ff..8a0420b 100644 > > --- a/arch/arm/mach-shmobile/Kconfig > > +++ b/arch/arm/mach-shmobile/Kconfig > > @@ -134,6 +134,8 @@ config MACH_KZM9G > > config MACH_KZM9G_REFERENCE > > bool "KZM-A9-GT board - Reference Device Tree Implementation" > > depends on ARCH_SH73A0 > > + select ARCH_HAS_CPUFREQ > > + select ARCH_HAS_OPP > > select ARCH_REQUIRE_GPIOLIB > > select REGULATOR_FIXED_VOLTAGE if REGULATOR > > select SND_SOC_AK4642 if SND_SIMPLE_CARD > > diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c > > index e8cd93a..0469e84 100644 > > --- a/arch/arm/mach-shmobile/setup-sh73a0.c > > +++ b/arch/arm/mach-shmobile/setup-sh73a0.c > > @@ -1016,6 +1016,8 @@ static const struct of_dev_auxdata sh73a0_auxdata_lookup[] __initconst = { > > > > void __init sh73a0_add_standard_devices_dt(void) > > { > > + struct platform_device_info devinfo = { .name = "cpufreq-cpu0", .id = -1, }; > > + > > /* clocks are setup late during boot in the case of DT */ > > sh73a0_clock_init(); > > > > @@ -1023,6 +1025,9 @@ void __init sh73a0_add_standard_devices_dt(void) > > ARRAY_SIZE(sh73a0_devices_dt)); > > of_platform_populate(NULL, of_default_bus_match_table, > > sh73a0_auxdata_lookup, NULL); > > + > > + /* Instantiate cpufreq-cpu0 */ > > + platform_device_register_full(&devinfo); > > } > > > > static const char *sh73a0_boards_compat_dt[] __initdata = { > > -- > > 1.7.2.5 > > > --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/
On Thu, Apr 04, 2013 at 11:54:20PM +0200, Guennadi Liakhovetski wrote: > Hi Simon > > Thanks for the review > > On Thu, 4 Apr 2013, Simon Horman wrote: > > > On Sun, Mar 24, 2013 at 08:27:35PM +0100, Guennadi Liakhovetski wrote: > > > This patch enables the use of the generic cpufreq-cpu0 driver on kzm9g. > > > Providing a regulator, a list of OPPs in DT, combined with a virtual > > > cpufreq-cpu0 platform device and a clock, attached to it is everything, > > > the cpufreq-cpu0 driver needs. > > > > I wonder if it would be possible to re-arange this patch a little. > > > > 1) vdd_dvfs is added in this patch but it appears to be used in the > > previous patch in the series. I wonder if this can be resolved > > by re-ordering the patches. > > Right, I'll change that. > > > 2) It includes both kzm9g board and sh73a0 SoC changes. > > I would prefer if the sh73a0 SoC portion (setup-sh73a0.c) > > was moved into a separate patch. The arm-soc people > > like to have separate board and SoC branches. > > Yes, I'll probably just merge the sh73a0-kzm9g-reference.dts hunk into the > previous patch. Thanks, I think that approach should work well.
diff --git a/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts b/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts index dd1cd80..b6f759e 100644 --- a/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts +++ b/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts @@ -78,10 +78,10 @@ reg = <0x40>; regulators { - sd1 { + vdd_dvfs: sd1 { regulator-name = "1.315V CPU"; - regulator-min-microvolt = <1315000>; - regulator-max-microvolt = <1335000>; + regulator-min-microvolt = <1050000>; + regulator-max-microvolt = <1350000>; regulator-always-on; regulator-boot-on; }; diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig index eb3a7ff..8a0420b 100644 --- a/arch/arm/mach-shmobile/Kconfig +++ b/arch/arm/mach-shmobile/Kconfig @@ -134,6 +134,8 @@ config MACH_KZM9G config MACH_KZM9G_REFERENCE bool "KZM-A9-GT board - Reference Device Tree Implementation" depends on ARCH_SH73A0 + select ARCH_HAS_CPUFREQ + select ARCH_HAS_OPP select ARCH_REQUIRE_GPIOLIB select REGULATOR_FIXED_VOLTAGE if REGULATOR select SND_SOC_AK4642 if SND_SIMPLE_CARD diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c index e8cd93a..0469e84 100644 --- a/arch/arm/mach-shmobile/setup-sh73a0.c +++ b/arch/arm/mach-shmobile/setup-sh73a0.c @@ -1016,6 +1016,8 @@ static const struct of_dev_auxdata sh73a0_auxdata_lookup[] __initconst = { void __init sh73a0_add_standard_devices_dt(void) { + struct platform_device_info devinfo = { .name = "cpufreq-cpu0", .id = -1, }; + /* clocks are setup late during boot in the case of DT */ sh73a0_clock_init(); @@ -1023,6 +1025,9 @@ void __init sh73a0_add_standard_devices_dt(void) ARRAY_SIZE(sh73a0_devices_dt)); of_platform_populate(NULL, of_default_bus_match_table, sh73a0_auxdata_lookup, NULL); + + /* Instantiate cpufreq-cpu0 */ + platform_device_register_full(&devinfo); } static const char *sh73a0_boards_compat_dt[] __initdata = {
This patch enables the use of the generic cpufreq-cpu0 driver on kzm9g. Providing a regulator, a list of OPPs in DT, combined with a virtual cpufreq-cpu0 platform device and a clock, attached to it is everything, the cpufreq-cpu0 driver needs. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com> --- v4: add a cpufreq-cpu0 platform device for the new cpufreq-cpu0 initialisation procedure arch/arm/boot/dts/sh73a0-kzm9g-reference.dts | 6 +++--- arch/arm/mach-shmobile/Kconfig | 2 ++ arch/arm/mach-shmobile/setup-sh73a0.c | 5 +++++ 3 files changed, 10 insertions(+), 3 deletions(-)