linux-kernel - Re: [PATCH 04/12] mfd: intel-m10-bmc: Split into core and spi specific parts

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Message-ID: <20221108170534.GB801591@roeck-us.net>
Date:   Tue, 8 Nov 2022 09:05:34 -0800
From:   Guenter Roeck <linux@...ck-us.net>
To:     Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
Cc:     linux-fpga@...r.kernel.org, Xu Yilun <yilun.xu@...el.com>,
        Wu Hao <hao.wu@...el.com>, Tom Rix <trix@...hat.com>,
        Moritz Fischer <mdf@...nel.org>, Lee Jones <lee@...nel.org>,
        Matthew Gerlach <matthew.gerlach@...ux.intel.com>,
        Russ Weight <russell.h.weight@...el.com>,
        Tianfei zhang <tianfei.zhang@...el.com>,
        Mark Brown <broonie@...nel.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        Jean Delvare <jdelvare@...e.com>, linux-kernel@...r.kernel.org,
        linux-hwmon@...r.kernel.org
Subject: Re: [PATCH 04/12] mfd: intel-m10-bmc: Split into core and spi
 specific parts

On Tue, Nov 08, 2022 at 04:42:57PM +0200, Ilpo Järvinen wrote:
> Split the common code from intel-m10-bmc driver into intel-m10-bmc-core
> and move the SPI bus parts into an interface specific file.
> 
> intel-m10-bmc-core becomes the core MFD functions which can support
> multiple bus interface like SPI bus.
> 
> Co-developed-by: Tianfei zhang <tianfei.zhang@...el.com>
> Signed-off-by: Tianfei zhang <tianfei.zhang@...el.com>
> Reviewed-by: Russ Weight <russell.h.weight@...el.com>
> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
> ---
>  MAINTAINERS                                   |   2 +-
>  drivers/fpga/Kconfig                          |   2 +-
>  drivers/hwmon/Kconfig                         |   2 +-
>  drivers/mfd/Kconfig                           |  30 ++--
>  drivers/mfd/Makefile                          |   5 +-
>  drivers/mfd/intel-m10-bmc-core.c              | 122 +++++++++++++++++
>  .../{intel-m10-bmc.c => intel-m10-bmc-spi.c}  | 128 +++---------------
>  include/linux/mfd/intel-m10-bmc.h             |   6 +
>  8 files changed, 173 insertions(+), 124 deletions(-)
>  create mode 100644 drivers/mfd/intel-m10-bmc-core.c
>  rename drivers/mfd/{intel-m10-bmc.c => intel-m10-bmc-spi.c} (60%)
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index cf0f18502372..ddfa4f8b3c80 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -10452,7 +10452,7 @@ S:	Maintained
>  F:	Documentation/ABI/testing/sysfs-driver-intel-m10-bmc
>  F:	Documentation/hwmon/intel-m10-bmc-hwmon.rst
>  F:	drivers/hwmon/intel-m10-bmc-hwmon.c
> -F:	drivers/mfd/intel-m10-bmc.c
> +F:	drivers/mfd/intel-m10-bmc*
>  F:	include/linux/mfd/intel-m10-bmc.h
>  
>  INTEL MENLOW THERMAL DRIVER
> diff --git a/drivers/fpga/Kconfig b/drivers/fpga/Kconfig
> index d1a8107fdcb3..e4daf79943ee 100644
> --- a/drivers/fpga/Kconfig
> +++ b/drivers/fpga/Kconfig
> @@ -246,7 +246,7 @@ config FPGA_MGR_VERSAL_FPGA
>  
>  config FPGA_M10_BMC_SEC_UPDATE
>  	tristate "Intel MAX10 BMC Secure Update driver"
> -	depends on MFD_INTEL_M10_BMC && FW_UPLOAD
> +	depends on MFD_INTEL_M10_BMC_CORE && FW_UPLOAD
>  	help
>  	  Secure update support for the Intel MAX10 board management
>  	  controller.
> diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
> index 7ac3daaf59ce..984a55e0f313 100644
> --- a/drivers/hwmon/Kconfig
> +++ b/drivers/hwmon/Kconfig
> @@ -2321,7 +2321,7 @@ config SENSORS_XGENE
>  
>  config SENSORS_INTEL_M10_BMC_HWMON
>  	tristate "Intel MAX10 BMC Hardware Monitoring"
> -	depends on MFD_INTEL_M10_BMC
> +	depends on MFD_INTEL_M10_BMC_CORE

In my opinion the change from MFD_INTEL_M10_BMC to MFD_INTEL_M10_BMC_CORE
(and thus the need to touch lots of Kconfig files) is not really necessary.

Not worth bike shedding about, though, so for hwmon

Acked-by: Guenter Roeck <linux@...ck-us.net>

Guenter