From: Frank Li <Frank.li@nxp.com>
To: Jean-Michel Hautbois <jeanmichel.hautbois@yoseli.org>
Cc: Greg Ungerer <gerg@linux-m68k.org>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Olivia Mackall <olivia@selenic.com>,
Herbert Xu <herbert@gondor.apana.org.au>,
Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
linux-m68k@lists.linux-m68k.org, linux-kernel@vger.kernel.org,
linux-crypto@vger.kernel.org, imx@lists.linux.dev,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 2/3] hwrng: imx-rngc: Use optional clock
Date: Mon, 24 Nov 2025 10:28:08 -0500 [thread overview]
Message-ID: <aSR5iI8ZgmJZ08Ep@lizhi-Precision-Tower-5810> (raw)
In-Reply-To: <20251124-b4-m5441x-add-rng-support-v3-2-f447251dad27@yoseli.org>
On Mon, Nov 24, 2025 at 02:04:07PM +0100, Jean-Michel Hautbois wrote:
> Change devm_clk_get() to devm_clk_get_optional() to support platforms
> where the RNG clock is always enabled and not exposed via the clock
> framework (such as ColdFire MCF54418).
>
> Signed-off-by: Jean-Michel Hautbois <jeanmichel.hautbois@yoseli.org>
> ---
Reviewed-by: Frank Li <Frank.Li@nxp.com>
> drivers/char/hw_random/imx-rngc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/char/hw_random/imx-rngc.c b/drivers/char/hw_random/imx-rngc.c
> index 241664a9b5d9ac7244f15cbe5d5302ca3787ebea..d6a847e48339b2758c73c95d57a7aa48eb4875e0 100644
> --- a/drivers/char/hw_random/imx-rngc.c
> +++ b/drivers/char/hw_random/imx-rngc.c
> @@ -259,7 +259,7 @@ static int __init imx_rngc_probe(struct platform_device *pdev)
> if (IS_ERR(rngc->base))
> return PTR_ERR(rngc->base);
>
> - rngc->clk = devm_clk_get(&pdev->dev, NULL);
> + rngc->clk = devm_clk_get_optional(&pdev->dev, NULL);
> if (IS_ERR(rngc->clk))
> return dev_err_probe(&pdev->dev, PTR_ERR(rngc->clk), "Cannot get rng_clk\n");
>
>
> --
> 2.39.5
>
next prev parent reply other threads:[~2025-11-24 15:28 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-24 13:04 [PATCH v3 0/3] m68k: coldfire: Add RNG support and const qualifiers for MCF54418 Jean-Michel Hautbois
2025-11-24 13:04 ` [PATCH v3 1/3] m68k: coldfire: Mark platform device resource arrays as const Jean-Michel Hautbois
2025-11-24 17:48 ` kernel test robot
2025-11-25 7:53 ` Jean-Michel Hautbois
2025-11-25 16:51 ` Frank Li
2025-11-26 11:32 ` Greg Ungerer
2025-11-24 13:04 ` [PATCH v3 2/3] hwrng: imx-rngc: Use optional clock Jean-Michel Hautbois
2025-11-24 15:28 ` Frank Li [this message]
2025-11-24 13:04 ` [PATCH v3 3/3] m68k: coldfire: Add RNG support for MCF54418 Jean-Michel Hautbois
2025-11-24 15:29 ` Frank Li
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