Re: [PATCH 1/6] staging: hikey9xx: fix Kconfig dependency chain

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

On Tue, Aug 18, 2020 at 04:58:53PM +0200, Mauro Carvalho Chehab wrote:
> Both the SPMI controller and the SPMI PMIC driver
> depends on the SPMI bus support.
> 
> The dependency for the regulator is also wrong:
> it should depends on the SPMI version of the HiSilicon 6421,
> and not on the normal one.
> 
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> ---
>  drivers/staging/hikey9xx/Kconfig | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/staging/hikey9xx/Kconfig b/drivers/staging/hikey9xx/Kconfig
> index 76267b9be562..a004839e8fa9 100644
> --- a/drivers/staging/hikey9xx/Kconfig
> +++ b/drivers/staging/hikey9xx/Kconfig
> @@ -5,6 +5,7 @@ config SPMI_HISI3670
>  	tristate "Hisilicon 3670 SPMI Controller"
>  	select IRQ_DOMAIN_HIERARCHY
>  	depends on HAS_IOMEM
> +	depends on SPMI
>  	help
>  	  If you say yes to this option, support will be included for the
>  	  built-in SPMI PMIC Arbiter interface on Hisilicon 3670
> @@ -14,6 +15,7 @@ config SPMI_HISI3670
>  config MFD_HI6421_SPMI
>  	tristate "HiSilicon Hi6421v600 SPMI PMU/Codec IC"
>  	depends on OF
> +	depends on SPMI
>  	select MFD_CORE
>  	help
>  	  Add support for HiSilicon Hi6421v600 SPMI PMIC. Hi6421 includes
> @@ -28,7 +30,7 @@ config MFD_HI6421_SPMI
>  # to be placed at drivers/regulator
>  config REGULATOR_HI6421V600
>  	tristate "HiSilicon Hi6421v600 PMIC voltage regulator support"
> -	depends on MFD_HI6421_PMIC && OF
> +	depends on MFD_HI6421_SPMI && OF
>  	help
>  	  This driver provides support for the voltage regulators on
>  	  HiSilicon Hi6421v600 PMU / Codec IC.

Better, but now I get the following build error:

ERROR: modpost: "regulator_map_voltage_iterate" [drivers/staging/hikey9xx/hi6421v600-regulator.ko] undefined!
ERROR: modpost: "regulator_list_voltage_table" [drivers/staging/hikey9xx/hi6421v600-regulator.ko] undefined!
ERROR: modpost: "of_get_regulator_init_data" [drivers/staging/hikey9xx/hi6421v600-regulator.ko] undefined!
ERROR: modpost: "regulator_register" [drivers/staging/hikey9xx/hi6421v600-regulator.ko] undefined!
ERROR: modpost: "regulator_unregister" [drivers/staging/hikey9xx/hi6421v600-regulator.ko] undefined!
ERROR: modpost: "rdev_get_drvdata" [drivers/staging/hikey9xx/hi6421v600-regulator.ko] undefined!

Someone need CONFIG_REGULATOR enabled?

Another follow-on patch?  :)

thanks,

greg k-h