On Saturday 15 of June 2013 11:15:51 Kukjin Kim wrote:
> Tomasz Figa wrote:
> > Exynos4212 and Exynos4412 SoCs differ only in number of ARM cores and
> > there is no need to have separate Kconfig options for them, since they
> > use the same code.
> >
> > This patch removes CONFIG_SOC_EXYNOS4412, leaving
> > CONFIG_SOC_EXYNOS4212
> > as the one supporting both SoCs from this series.
> >
> > Cc: "Rafael J. Wysocki" <rjw@xxxxxxx>
> > Cc: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
> > Cc: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>
> > Cc: Zhang Rui <rui.zhang@xxxxxxxxx>
> > Cc: Eduardo Valentin <eduardo.valentin@xxxxxx>
> > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> > Cc: cpufreq@xxxxxxxxxxxxxxx
> > Cc: linux-pm@xxxxxxxxxxxxxxx
> > Cc: linux-media@xxxxxxxxxxxxxxx
> > Cc: linux-serial@xxxxxxxxxxxxxxx
> > Signed-off-by: Tomasz Figa <t.figa@xxxxxxxxxxx>
> > Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
> > ---
> >
> > arch/arm/mach-exynos/Kconfig | 11 +----------
> > arch/arm/plat-samsung/include/plat/cpu.h | 6 +-----
> > drivers/cpufreq/Kconfig.arm | 2 +-
> > drivers/media/platform/exynos4-is/Kconfig | 2 +-
> > drivers/thermal/exynos_thermal.c | 2 +-
> > drivers/tty/serial/samsung.c | 3 +--
> > 6 files changed, 6 insertions(+), 20 deletions(-)
> >
> > diff --git a/arch/arm/mach-exynos/Kconfig
> > b/arch/arm/mach-exynos/Kconfig index 47d8d9e..fe75a65 100644
> > --- a/arch/arm/mach-exynos/Kconfig
> > +++ b/arch/arm/mach-exynos/Kconfig
> > @@ -46,7 +46,7 @@ config CPU_EXYNOS4210
> >
> > Enable EXYNOS4210 CPU support
> >
> > config SOC_EXYNOS4212
> >
> > - bool "SAMSUNG EXYNOS4212"
> > + bool "SAMSUNG EXYNOS4212/4412"
> >
> > default y
> > depends on ARCH_EXYNOS4
> > select PINCTRL_EXYNOS
> >
> > @@ -56,15 +56,6 @@ config SOC_EXYNOS4212
> >
> > help
> >
> > Enable EXYNOS4212 SoC support
> >
> > -config SOC_EXYNOS4412
> > - bool "SAMSUNG EXYNOS4412"
> > - default y
> > - depends on ARCH_EXYNOS4
> > - select PINCTRL_EXYNOS
> > - select SAMSUNG_DMADEV
> > - help
> > - Enable EXYNOS4412 SoC support
> > -
> >
> > config SOC_EXYNOS5250
> >
> > bool "SAMSUNG EXYNOS5250"
> > default y
> >
> > diff --git a/arch/arm/plat-samsung/include/plat/cpu.h b/arch/arm/plat-
> > samsung/include/plat/cpu.h
> > index 989fefe..87b03bb 100644
> > --- a/arch/arm/plat-samsung/include/plat/cpu.h
> > +++ b/arch/arm/plat-samsung/include/plat/cpu.h
> > @@ -122,13 +122,9 @@ IS_SAMSUNG_CPU(exynos5440, EXYNOS5440_SOC_ID,
> > EXYNOS5_SOC_MASK)
> >
> > #if defined(CONFIG_SOC_EXYNOS4212)
> > # define soc_is_exynos4212() is_samsung_exynos4212()
> >
> > -#else
> > -# define soc_is_exynos4212() 0
> > -#endif
> > -
> > -#if defined(CONFIG_SOC_EXYNOS4412)
> >
> > # define soc_is_exynos4412() is_samsung_exynos4412()
> > #else
> >
> > +# define soc_is_exynos4212() 0
> >
> > # define soc_is_exynos4412() 0
> > #endif
> >
> > diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
> > index a924408..b214ad6 100644
> > --- a/drivers/cpufreq/Kconfig.arm
> > +++ b/drivers/cpufreq/Kconfig.arm
> > @@ -32,7 +32,7 @@ config ARM_EXYNOS4210_CPUFREQ
> >
> > SoC (S5PV310 or S5PC210).
> >
> > config ARM_EXYNOS4X12_CPUFREQ
> >
> > - def_bool (SOC_EXYNOS4212 || SOC_EXYNOS4412)
> > + def_bool SOC_EXYNOS4212
> >
> > help
> >
> > This adds the CPUFreq driver for Samsung EXYNOS4X12
> > SoC (EXYNOS4212 or EXYNOS4412).
> >
> > diff --git a/drivers/media/platform/exynos4-is/Kconfig
> > b/drivers/media/platform/exynos4-is/Kconfig
> > index 6ff99b5..f483e11 100644
> > --- a/drivers/media/platform/exynos4-is/Kconfig
> > +++ b/drivers/media/platform/exynos4-is/Kconfig
> > @@ -32,7 +32,7 @@ config VIDEO_S5P_MIPI_CSIS
> >
> > To compile this driver as a module, choose M here: the
> > module will be called s5p-csis.
> >
> > -if SOC_EXYNOS4212 || SOC_EXYNOS4412 || SOC_EXYNOS5250
> > +if SOC_EXYNOS4212 || SOC_EXYNOS5250
> >
> > config VIDEO_EXYNOS_FIMC_LITE
> >
> > tristate "EXYNOS FIMC-LITE camera interface driver"
> >
> > diff --git a/drivers/thermal/exynos_thermal.c
> > b/drivers/thermal/exynos_thermal.c
> > index 788b1dd..f88a2ad 100644
> > --- a/drivers/thermal/exynos_thermal.c
> > +++ b/drivers/thermal/exynos_thermal.c
> > @@ -817,7 +817,7 @@ static struct exynos_tmu_platform_data const
> > exynos4210_default_tmu_data = {
> >
> > #define EXYNOS4210_TMU_DRV_DATA (NULL)
> > #endif
> >
> > -#if defined(CONFIG_SOC_EXYNOS5250) || defined(CONFIG_SOC_EXYNOS4412)
> > +#if defined(CONFIG_SOC_EXYNOS5250) || defined(CONFIG_SOC_EXYNOS4212)
> >
> > static struct exynos_tmu_platform_data const exynos_default_tmu_data
> > = {>
> > .threshold_falling = 10,
> > .trigger_levels[0] = 85,
> >
> > diff --git a/drivers/tty/serial/samsung.c
> > b/drivers/tty/serial/samsung.c index 0c8a9fa..eeb8ecb 100644
> > --- a/drivers/tty/serial/samsung.c
> > +++ b/drivers/tty/serial/samsung.c
> > @@ -1714,8 +1714,7 @@ static struct s3c24xx_serial_drv_data
> > s5pv210_serial_drv_data = {
> >
> > #endif
> >
> > #if defined(CONFIG_CPU_EXYNOS4210) || defined(CONFIG_SOC_EXYNOS4212)
> > || \>
> > - defined(CONFIG_SOC_EXYNOS4412) || defined(CONFIG_SOC_EXYNOS5250)
||
> > \
> > - defined(CONFIG_SOC_EXYNOS5440)
> > + defined(CONFIG_SOC_EXYNOS5250) || defined(CONFIG_SOC_EXYNOS5440)
> >
> > static struct s3c24xx_serial_drv_data exynos4210_serial_drv_data = {
> >
> > .info = &(struct s3c24xx_uart_info) {
> >
> > .name = "Samsung Exynos4 UART",
> >
> > --
> > 1.8.2.1
>
> Hmm, how about SOC_EXYNOS4X12 for exynos4212 and exynos4412?
I was thinking about it and finally decided to leave SOC_EXYNOS4212 for
compatibility reasons - you don't need to change SOC_EXYNOS4212 to
SOC_EXYNOS4X12 wherever it's used, making it possible to apply some older
out of tree patches without modification.
> BTW, AFAIK, we need to leave both to support something...I need to check
> :)
OK.
But IMHO, now with DeviceTree, there is usually no need for such level of
differentiation on config level.
For example we might be even able reduce CPU_EXYNOS4210 and SOC_EXYNOS4212
to just ARCH_EXYNOS4, because they share almost all the code and all the
differencies are specified in device tree.
Best regards,
Tomasz
> - Kukjin
>
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