Re: [PATCH] sh: select legacy gpiolib interface

[John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>]

Hi Arnd,

On Tue, 2026-04-28 at 17:55 +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
> 
> Many board files on sh reference the legacy gpiolib interfaces that
> are becoming optional. To ensure the boards can keep building, select
> CONFIG_GPIOLIB_LEGACY on each of the boards that have one of the
> hardcoded calls.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  arch/sh/Kconfig                        | 1 +
>  arch/sh/boards/Kconfig                 | 8 ++++++++
>  arch/sh/boards/mach-highlander/Kconfig | 1 +
>  arch/sh/boards/mach-rsk/Kconfig        | 3 +++
>  4 files changed, 13 insertions(+)
> 
> diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
> index d5795067befa..d60f1d5a94c0 100644
> --- a/arch/sh/Kconfig
> +++ b/arch/sh/Kconfig
> @@ -462,6 +462,7 @@ config CPU_SUBTYPE_SHX3
>  	select CPU_SHX3
>  	select GENERIC_CLOCKEVENTS_BROADCAST if SMP
>  	select GPIOLIB
> +	select GPIOLIB_LEGACY
>  	select PINCTRL
>  
>  # SH4AL-DSP Processor Support
> diff --git a/arch/sh/boards/Kconfig b/arch/sh/boards/Kconfig
> index 1af93be61b1f..d89b74177233 100644
> --- a/arch/sh/boards/Kconfig
> +++ b/arch/sh/boards/Kconfig
> @@ -80,6 +80,7 @@ config SH_7724_SOLUTION_ENGINE
>  	select SOLUTION_ENGINE
>  	depends on CPU_SUBTYPE_SH7724
>  	select GPIOLIB
> +	select GPIOLIB_LEGACY
>  	select REGULATOR_FIXED_VOLTAGE if REGULATOR
>  	imply SND_SOC_AK4642 if SND_SIMPLE_CARD
>  	help
> @@ -199,6 +200,7 @@ config SH_SH7757LCR
>  	bool "SH7757LCR"
>  	depends on CPU_SUBTYPE_SH7757
>  	select GPIOLIB
> +	select GPIOLIB_LEGACY
>  	select REGULATOR_FIXED_VOLTAGE if REGULATOR
>  
>  config SH_SH7785LCR
> @@ -226,6 +228,7 @@ config SH_URQUELL
>  	bool "Urquell"
>  	depends on CPU_SUBTYPE_SH7786
>  	select GPIOLIB
> +	select GPIOLIB_LEGACY
>  	select HAVE_PCI
>  	select NO_IOPORT_MAP if !PCI
>  
> @@ -233,6 +236,7 @@ config SH_MIGOR
>  	bool "Migo-R"
>  	depends on CPU_SUBTYPE_SH7722
>  	select GPIOLIB
> +	select GPIOLIB_LEGACY
>  	select REGULATOR_FIXED_VOLTAGE if REGULATOR
>  	help
>  	  Select Migo-R if configuring for the SH7722 Migo-R platform
> @@ -242,6 +246,7 @@ config SH_AP325RXA
>  	bool "AP-325RXA"
>  	depends on CPU_SUBTYPE_SH7723
>  	select GPIOLIB
> +	select GPIOLIB_LEGACY
>  	select REGULATOR_FIXED_VOLTAGE if REGULATOR
>  	help
>  	  Renesas "AP-325RXA" support.
> @@ -251,6 +256,7 @@ config SH_KFR2R09
>  	bool "KFR2R09"
>  	depends on CPU_SUBTYPE_SH7724
>  	select GPIOLIB
> +	select GPIOLIB_LEGACY
>  	select REGULATOR_FIXED_VOLTAGE if REGULATOR
>  	help
>  	  "Kit For R2R for 2009" support.
> @@ -259,6 +265,7 @@ config SH_ECOVEC
>  	bool "EcoVec"
>  	depends on CPU_SUBTYPE_SH7724
>  	select GPIOLIB
> +	select GPIOLIB_LEGACY
>  	select REGULATOR_FIXED_VOLTAGE if REGULATOR
>  	imply SND_SOC_DA7210 if SND_SIMPLE_CARD
>  	help
> @@ -329,6 +336,7 @@ config SH_MAGIC_PANEL_R2
>  	bool "Magic Panel R2"
>  	depends on CPU_SUBTYPE_SH7720
>  	select GPIOLIB
> +	select GPIOLIB_LEGACY
>  	select REGULATOR_FIXED_VOLTAGE if REGULATOR
>  	help
>  	  Select Magic Panel R2 if configuring for Magic Panel R2.
> diff --git a/arch/sh/boards/mach-highlander/Kconfig b/arch/sh/boards/mach-highlander/Kconfig
> index b0abd03cac4e..cd3a553ce30c 100644
> --- a/arch/sh/boards/mach-highlander/Kconfig
> +++ b/arch/sh/boards/mach-highlander/Kconfig
> @@ -20,6 +20,7 @@ config SH_R7785RP
>  	bool "R7785RP board support"
>  	depends on CPU_SUBTYPE_SH7785
>  	select GPIOLIB
> +	select GPIOLIB_LEGACY
>  
>  endchoice
>  
> diff --git a/arch/sh/boards/mach-rsk/Kconfig b/arch/sh/boards/mach-rsk/Kconfig
> index f0299bc4416f..3810937aa5d4 100644
> --- a/arch/sh/boards/mach-rsk/Kconfig
> +++ b/arch/sh/boards/mach-rsk/Kconfig
> @@ -12,16 +12,19 @@ config SH_RSK7201
>  config SH_RSK7203
>  	bool "RSK7203"
>  	select GPIOLIB
> +	select GPIOLIB_LEGACY
>  	depends on CPU_SUBTYPE_SH7203
>  
>  config SH_RSK7264
>  	bool "RSK2+SH7264"
>  	select GPIOLIB
> +	select GPIOLIB_LEGACY
>  	depends on CPU_SUBTYPE_SH7264
>  
>  config SH_RSK7269
>  	bool "RSK2+SH7269"
>  	select GPIOLIB
> +	select GPIOLIB_LEGACY
>  	depends on CPU_SUBTYPE_SH7269
>  
>  endchoice

Thanks, this looks reasonable from what I can see. Most boards require at least
gpio_request() which is now guarded behind CONFIG_GPIOLIB_LEGACY.

Does this maybe need a Fixes: tag to identify the commit which introduced the new
config option CONFIG_GPIOLIB_LEGACY?

Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>

Thanks,
Adrian

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