linux-kernel - Re: [PATCH v1 3/3] firmware: imx: add imx-scu GPIO driver

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Message-ID: <c3060197-ef5c-ad41-1c18-9d39641d1ad6@linaro.org>
Date:   Fri, 5 Aug 2022 08:57:26 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Shenwei Wang <shenwei.wang@....com>, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, linus.walleij@...aro.org,
        brgl@...ev.pl, shawnguo@...nel.org, s.hauer@...gutronix.de,
        kernel@...gutronix.de, festevam@...il.com, linux-imx@....com
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v1 3/3] firmware: imx: add imx-scu GPIO driver

On 04/08/2022 20:49, Shenwei Wang wrote:
> The SCU firmware on i.MX8 platforms provides a set of APIs to
> control the GPIO PINs on the SCU domain. This patch implements the
> standard GPIO driver interface to access those PINs on the
> SCU domain over the SCU APIs.
> 
> Signed-off-by: Shenwei Wang <shenwei.wang@....com>
> ---
>  drivers/firmware/imx/Kconfig        |   6 ++
>  drivers/firmware/imx/Makefile       |   1 +
>  drivers/firmware/imx/imx-scu-gpio.c | 139 ++++++++++++++++++++++++++++
>  3 files changed, 146 insertions(+)
>  create mode 100644 drivers/firmware/imx/imx-scu-gpio.c
> 
> diff --git a/drivers/firmware/imx/Kconfig b/drivers/firmware/imx/Kconfig
> index c027d99f2a59..484c13f3149a 100644
> --- a/drivers/firmware/imx/Kconfig
> +++ b/drivers/firmware/imx/Kconfig
> @@ -28,3 +28,9 @@ config IMX_SCU_PD
>  	depends on IMX_SCU
>  	help
>  	  The System Controller Firmware (SCFW) based power domain driver.
> +
> +config IMX_SCU_GPIO
> +       def_bool y
> +       depends on IMX_SCU
> +       help
> +         Say Y here to enable the imx8 gpio over SCFW MISC API

gpio driver go to drivers/gpio/

Best regards,
Krzysztof