linux-kernel - Re: [PATCH v2 5/5] hwrng: imx-rngc: enable driver for i.MX6

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Date:   Sun, 21 Jun 2020 19:38:51 +0200
From:   Martin Kaiser <martin@...ser.cx>
To:     Horia Geantă <horia.geanta@....com>
Cc:     Rob Herring <robh+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Matt Mackall <mpm@...enic.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Franck Lenormand <franck.lenormand@....com>,
        Iuliana Prodan <iuliana.prodan@....com>,
        Silvano Di Ninno <silvano.dininno@....com>,
        linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 5/5] hwrng: imx-rngc: enable driver for i.MX6

Thus wrote Horia Geantă (horia.geanta@....com):

> i.MX6 SL, SLL, ULL, ULZ SoCs have an RNGB block.

> Since imx-rngc driver supports also rngb,
> let's enable it for these SoCs too.

> Signed-off-by: Horia Geantă <horia.geanta@....com>
> ---
>  drivers/char/hw_random/Kconfig    | 2 +-
>  drivers/char/hw_random/imx-rngc.c | 3 +++
>  2 files changed, 4 insertions(+), 1 deletion(-)

> diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
> index 0ad17efc96df..53f6a7e4392f 100644
> --- a/drivers/char/hw_random/Kconfig
> +++ b/drivers/char/hw_random/Kconfig
> @@ -245,7 +245,7 @@ config HW_RANDOM_MXC_RNGA
>  config HW_RANDOM_IMX_RNGC
>  	tristate "Freescale i.MX RNGC Random Number Generator"
>  	depends on HAS_IOMEM && HAVE_CLK
> -	depends on SOC_IMX25 || COMPILE_TEST
> +	depends on SOC_IMX25 || SOC_IMX6SL || SOC_IMX6SLL || SOC_IMX6UL || COMPILE_TEST
>  	default HW_RANDOM
>  	help
>  	  This driver provides kernel-side support for the Random Number
> diff --git a/drivers/char/hw_random/imx-rngc.c b/drivers/char/hw_random/imx-rngc.c
> index 9c47e431ce90..84576d2fbf8c 100644
> --- a/drivers/char/hw_random/imx-rngc.c
> +++ b/drivers/char/hw_random/imx-rngc.c
> @@ -350,6 +350,9 @@ static SIMPLE_DEV_PM_OPS(imx_rngc_pm_ops, imx_rngc_suspend, imx_rngc_resume);

>  static const struct of_device_id imx_rngc_dt_ids[] = {
>  	{ .compatible = "fsl,imx25-rngb", .data = NULL, },
> +	{ .compatible = "fsl,imx6sl-rngb", .data = NULL, },
> +	{ .compatible = "fsl,imx6sll-rngb", .data = NULL, },
> +	{ .compatible = "fsl,imx6ull-rngb", .data = NULL, },
>  	{ /* sentinel */ }
>  };
>  MODULE_DEVICE_TABLE(of, imx_rngc_dt_ids);
> -- 
> 2.17.1

Reviewed-by: Martin Kaiser <martin@...ser.cx>