linux-kernel - Re: [RESEND PATCH V3 01/21] thermal: exynos: Moving exynos thermal files into samsung directory

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Message-ID: <518A7410.3090605@ti.com>
Date:	Wed, 8 May 2013 11:49:36 -0400
From:	Eduardo Valentin <eduardo.valentin@...com>
To:	Amit Daniel Kachhap <amit.daniel@...sung.com>
CC:	<linux-pm@...r.kernel.org>, Zhang Rui <rui.zhang@...el.com>,
	<linux-samsung-soc@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <amit.kachhap@...il.com>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Eduardo Valentin <eduardo.valentin@...com>
Subject: Re: [RESEND PATCH V3 01/21] thermal: exynos: Moving exynos thermal
 files into samsung directory

On 07-05-2013 09:07, Amit Daniel Kachhap wrote:
> This movement of files is done for easy maintenance and adding more
> new sensor's support for exynos platform easily . This will also help in
> bifurcating exynos common, sensor driver and sensor data related parts.
> 
> Acked-by: Kukjin Kim <kgene.kim@...sung.com>
> Signed-off-by: Amit Daniel Kachhap <amit.daniel@...sung.com>
> ---
>  drivers/thermal/Kconfig                        |   13 +++++--------
>  drivers/thermal/Makefile                       |    2 +-
>  drivers/thermal/samsung/Kconfig                |    9 +++++++++
>  drivers/thermal/samsung/Makefile               |    4 ++++
>  drivers/thermal/{ => samsung}/exynos_thermal.c |    0
>  5 files changed, 19 insertions(+), 9 deletions(-)
>  create mode 100644 drivers/thermal/samsung/Kconfig
>  create mode 100644 drivers/thermal/samsung/Makefile
>  rename drivers/thermal/{ => samsung}/exynos_thermal.c (100%)
> 
> diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
> index 5e3c025..081ddc5 100644
> --- a/drivers/thermal/Kconfig
> +++ b/drivers/thermal/Kconfig
> @@ -114,14 +114,6 @@ config KIRKWOOD_THERMAL
>  	  Support for the Kirkwood thermal sensor driver into the Linux thermal
>  	  framework. Only kirkwood 88F6282 and 88F6283 have this sensor.
>  
> -config EXYNOS_THERMAL
> -	tristate "Temperature sensor on Samsung EXYNOS"
> -	depends on (ARCH_EXYNOS4 || ARCH_EXYNOS5)
> -	depends on CPU_THERMAL
> -	help
> -	  If you say yes here you get support for TMU (Thermal Management
> -	  Unit) on SAMSUNG EXYNOS series of SoC.
> -
>  config DOVE_THERMAL
>  	tristate "Temperature sensor on Marvell Dove SoCs"
>  	depends on ARCH_DOVE
> @@ -169,4 +161,9 @@ config INTEL_POWERCLAMP
>  	  enforce idle time which results in more package C-state residency. The
>  	  user interface is exposed via generic thermal framework.
>  
> +menu "Samsung thermal drivers"
> +depends on PLAT_SAMSUNG
> +source "drivers/thermal/samsung/Kconfig"
> +endmenu
> +
>  endif
> diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile
> index c054d41..b3063a9 100644
> --- a/drivers/thermal/Makefile
> +++ b/drivers/thermal/Makefile
> @@ -17,7 +17,7 @@ thermal_sys-$(CONFIG_CPU_THERMAL)	+= cpu_cooling.o
>  obj-$(CONFIG_SPEAR_THERMAL)	+= spear_thermal.o
>  obj-$(CONFIG_RCAR_THERMAL)	+= rcar_thermal.o
>  obj-$(CONFIG_KIRKWOOD_THERMAL)  += kirkwood_thermal.o
> -obj-$(CONFIG_EXYNOS_THERMAL)	+= exynos_thermal.o
> +obj-y				+= samsung/
>  obj-$(CONFIG_DOVE_THERMAL)  	+= dove_thermal.o
>  obj-$(CONFIG_DB8500_THERMAL)	+= db8500_thermal.o
>  obj-$(CONFIG_ARMADA_THERMAL)	+= armada_thermal.o
> diff --git a/drivers/thermal/samsung/Kconfig b/drivers/thermal/samsung/Kconfig
> new file mode 100644
> index 0000000..2d3d9dc
> --- /dev/null
> +++ b/drivers/thermal/samsung/Kconfig
> @@ -0,0 +1,9 @@
> +config EXYNOS_THERMAL
> +	tristate "Temperature sensor on Samsung EXYNOS"
> +	depends on (ARCH_EXYNOS4 || ARCH_EXYNOS5)

Do you really want to keep a list of Kconfig dependency here?

I was suggested to have a config entry (like ARCH_HAS_BANDBAP) and then
in the driver use:
	depends on ARCH_HAS_BANDGAP

And the arch/ code would just selects ARCH_HAS_BANDGAP (like
ARCH_HAS_CPUFREQ).

> +	depends on CPU_THERMAL
> +	help
> +	  If you say yes here you get support for TMU (Thermal Management
> +	  Unit) on SAMSUNG EXYNOS series of SoC. This helps in registering
> +	  the exynos thermal driver with the core thermal layer and cpu
> +	  cooling API's.
> diff --git a/drivers/thermal/samsung/Makefile b/drivers/thermal/samsung/Makefile
> new file mode 100644
> index 0000000..1fe6d93
> --- /dev/null
> +++ b/drivers/thermal/samsung/Makefile
> @@ -0,0 +1,4 @@
> +#
> +# Samsung thermal specific Makefile
> +#
> +obj-$(CONFIG_EXYNOS_THERMAL)	+= exynos_thermal.o
> diff --git a/drivers/thermal/exynos_thermal.c b/drivers/thermal/samsung/exynos_thermal.c
> similarity index 100%
> rename from drivers/thermal/exynos_thermal.c
> rename to drivers/thermal/samsung/exynos_thermal.c
> 



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