Re: [PATCH] i3c: master: dw: split dw-i3c-master.c into master and bus specific parts

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On Thu, 22 Nov 2018 17:54:54 +0000
Vitor Soares <vitor.soares@xxxxxxxxxxxx> wrote:

> From: Vitor Soares <soares@xxxxxxxxxxxx>
> 
> This patch slipts dw-i3c-master.c into three pieces:
> 	dw-i3c-master.c - contains the code that interacts directly with the
> 	core in master mode.
> 
> 	dw-i3c-platdrv.c - contains the code specific to the platform driver.
> 
> 	dw-i3c-core.h - contains the definitions and declarations shared by
> 	dw-i3c-master and dw-i3c-platdrv
> 
> This patch will allow SOC integrators to add their code specific to
> DesignWare I3C IP.

Isn't it too early to do this change? Can't we wait until we have a SoC
that actually embeds this IP?

> 
> Signed-off-by: Vitor Soares <soares@xxxxxxxxxxxx>
> ---
>  drivers/i3c/master/Kconfig          |   9 +-
>  drivers/i3c/master/Makefile         |   5 +-
>  drivers/i3c/master/dw-i3c-core.h    | 214 ++++++++++++++++++++++++++
>  drivers/i3c/master/dw-i3c-master.c  | 299 ++----------------------------------
>  drivers/i3c/master/dw-i3c-platdrv.c | 112 ++++++++++++++

I'd prefer to have a dw/ subdir where you'd place all dw files.

>  5 files changed, 349 insertions(+), 290 deletions(-)
>  create mode 100644 drivers/i3c/master/dw-i3c-core.h
>  create mode 100644 drivers/i3c/master/dw-i3c-platdrv.c
> 
> diff --git a/drivers/i3c/master/Kconfig b/drivers/i3c/master/Kconfig
> index 8ee1ce6..fdc6e46 100644
> --- a/drivers/i3c/master/Kconfig
> +++ b/drivers/i3c/master/Kconfig
> @@ -5,9 +5,14 @@ config CDNS_I3C_MASTER
>  	help
>  	  Enable this driver if you want to support Cadence I3C master block.
>  
> -config DW_I3C_MASTER
> -	tristate "Synospsys DesignWare I3C master driver"
> +config DW_I3C_CORE
> +	tristate
> +
> +config DW_I3C_PLATFORM
> +	tristate "Synospsys DesignWare I3C Platform driver"
> +	select DW_I3C_CORE
>  	depends on I3C
> +	depends on HAS_IOMEM
>  	depends on !(ALPHA || PARISC)
>  	# ALPHA and PARISC needs {read,write}sl()
>  	help
> diff --git a/drivers/i3c/master/Makefile b/drivers/i3c/master/Makefile
> index fc53939..004ad1c 100644
> --- a/drivers/i3c/master/Makefile
> +++ b/drivers/i3c/master/Makefile
> @@ -1,2 +1,5 @@
>  obj-$(CONFIG_CDNS_I3C_MASTER)		+= i3c-master-cdns.o
> -obj-$(CONFIG_DW_I3C_MASTER)		+= dw-i3c-master.o
> +obj-$(CONFIG_DW_I3C_CORE)		+= dw-i3c-core.o
> +dw-i3c-core-objs			:= dw-i3c-master.o
> +obj-$(CONFIG_DW_I3C_PLATFORM)		+= dw-i3c-platform.o
> +dw-i3c-platform-objs			:= dw-i3c-platdrv.o

Do we really have to create one module for the core and one per SoC?
Can't we have everything in the same .ko?



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