linux-kernel - RE: [PATCH v3 1/9] thermal: renesas: rzg3e: make reset optional

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Message-ID:
 <TY6PR01MB17377EF4E7BDCB0EAAE6B8209FF84A@TY6PR01MB17377.jpnprd01.prod.outlook.com>
Date: Wed, 7 Jan 2026 17:04:54 +0000
From: John Madieu <john.madieu.xa@...renesas.com>
To: Cosmin-Gabriel Tanislav <cosmin-gabriel.tanislav.xa@...esas.com>, "Rafael
 J . Wysocki" <rafael@...nel.org>, Daniel Lezcano <daniel.lezcano@...aro.org>,
	Zhang Rui <rui.zhang@...el.com>, Lukasz Luba <lukasz.luba@....com>, Rob
 Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor
 Dooley <conor+dt@...nel.org>, Geert Uytterhoeven <geert+renesas@...der.be>,
	magnus.damm <magnus.damm@...il.com>, Philipp Zabel <p.zabel@...gutronix.de>
CC: "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-renesas-soc@...r.kernel.org" <linux-renesas-soc@...r.kernel.org>,
	Cosmin-Gabriel Tanislav <cosmin-gabriel.tanislav.xa@...esas.com>
Subject: RE: [PATCH v3 1/9] thermal: renesas: rzg3e: make reset optional

Hi Cosmin,

> -----Original Message-----
> From: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@...esas.com>
> Sent: Wednesday, November 26, 2025 2:04 PM
> To: John Madieu <john.madieu.xa@...renesas.com>; Rafael J . Wysocki
> <rafael@...nel.org>; Daniel Lezcano <daniel.lezcano@...aro.org>; Zhang Rui
> <rui.zhang@...el.com>; Lukasz Luba <lukasz.luba@....com>; Rob Herring
> <robh@...nel.org>; Krzysztof Kozlowski <krzk+dt@...nel.org>; Conor Dooley
> <conor+dt@...nel.org>; Geert Uytterhoeven <geert+renesas@...der.be>;
> magnus.damm <magnus.damm@...il.com>; Philipp Zabel
> <p.zabel@...gutronix.de>
> Cc: linux-pm@...r.kernel.org; devicetree@...r.kernel.org; linux-
> kernel@...r.kernel.org; linux-renesas-soc@...r.kernel.org; Cosmin-Gabriel
> Tanislav <cosmin-gabriel.tanislav.xa@...esas.com>
> Subject: [PATCH v3 1/9] thermal: renesas: rzg3e: make reset optional
> 
> The Renesas RZ/T2H (R9A09G077) and RZ/N2H (R9A09G087) SoCs do not have a
> reset line.
> 
> Prepare for them by making it optional.
> 
> Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@...esas.com>
> ---
> V3:
>  * no changes
> 
> V2:
>  * no changes
> 
>  drivers/thermal/renesas/rzg3e_thermal.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/thermal/renesas/rzg3e_thermal.c
> b/drivers/thermal/renesas/rzg3e_thermal.c
> index e66d73ca6752..86c10810e5bf 100644
> --- a/drivers/thermal/renesas/rzg3e_thermal.c
> +++ b/drivers/thermal/renesas/rzg3e_thermal.c
> @@ -412,7 +412,7 @@ static int rzg3e_thermal_probe(struct platform_device
> *pdev)
>  				     "Clock rate %lu Hz too low (min %u Hz)\n",
>  				     clk_get_rate(clk), TSU_MIN_CLOCK_RATE);
> 
> -	priv->rstc = devm_reset_control_get_exclusive_deasserted(dev, NULL);
> +	priv->rstc =
> devm_reset_control_get_optional_exclusive_deasserted(dev,
> +NULL);
>  	if (IS_ERR(priv->rstc))
>  		return dev_err_probe(dev, PTR_ERR(priv->rstc),
>  				     "Failed to get/deassert reset control\n");
> --
> 2.52.0

Reviewed-by: John Madieu <john.madieu.xa@...renesas.com>
Tested-by: John Madieu <john.madieu.xa@...renesas.com>