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Mon, 07 Jul 2025 13:01:22 -0700 (PDT) Received: from iku.example.org ([2a06:5906:61b:2d00:d418:e5eb:1bc:30dd]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3b471b97376sm11268995f8f.61.2025.07.07.13.01.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Jul 2025 13:01:22 -0700 (PDT) From: Prabhakar X-Google-Original-From: Prabhakar To: Wim Van Sebroeck , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Philipp Zabel , Wolfram Sang , linux-watchdog@vger.kernel.org Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Prabhakar , Biju Das , Fabrizio Castro , Lad Prabhakar Subject: [PATCH 6/9] watchdog: rzv2h_wdt: Make reset controller optional Date: Mon, 7 Jul 2025 21:01:08 +0100 Message-ID: <20250707200111.329663-7-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250707200111.329663-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20250707200111.329663-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Lad Prabhakar Use devm_reset_control_get_optional_exclusive() instead of devm_reset_control_get_exclusive() to allow the driver to operate on platforms where a reset controller is not present. This change is in preparation for supporting the RZ/T2H SoC, which does not have reset. Signed-off-by: Lad Prabhakar Reviewed-by: Fabrizio Castro --- drivers/watchdog/rzv2h_wdt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/watchdog/rzv2h_wdt.c b/drivers/watchdog/rzv2h_wdt.c index cb584ac5860f..f0e2bf786acc 100644 --- a/drivers/watchdog/rzv2h_wdt.c +++ b/drivers/watchdog/rzv2h_wdt.c @@ -240,7 +240,7 @@ static int rzv2h_wdt_probe(struct platform_device *pdev) if (IS_ERR(priv->oscclk)) return dev_err_probe(dev, PTR_ERR(priv->oscclk), "no oscclk"); =20 - priv->rstc =3D devm_reset_control_get_exclusive(dev, NULL); + priv->rstc =3D devm_reset_control_get_optional_exclusive(dev, NULL); if (IS_ERR(priv->rstc)) return dev_err_probe(dev, PTR_ERR(priv->rstc), "failed to get cpg reset"); --=20 2.49.0