From patchwork Thu Feb 8 10:58:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 13549622 Received: from mail-wr1-f51.google.com (mail-wr1-f51.google.com [209.85.221.51]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AE4E87602F for ; Thu, 8 Feb 2024 10:58:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.51 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707389910; cv=none; b=lFx59mCINkBJThCFflSbFEfExakAa62B78/Pcw1qB39pITgla50rM7w76Gprk40gqCT5LAkyOPXXKqcGiohKZMZUFltaIFoieZpqAeBAJvom/YlR3WzNCkyNnr/flNvMGvGO9vM6rg7AJX28KoHOFPTtZC8Qt1vXVPcxfdxnZJE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707389910; c=relaxed/simple; bh=w6qWP7XaJKm/vK3s1+oR2qLNqOjHuQiddgUXe+2xIMA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=exNMRiu/vx2A6WCh5r+DmYqpGH82q2tKrvAFo1d8NldrAjUND5VS6Co+3kO7FbKVBjtyh7edVoxlnUrwP8833TuRakaI6HF4gUbFc5LicUtuZ5a+bjZES1XnTL1FyxX78iKq4e4BodHgGaRoRcXpvCE3QkkDSYgAzqKU05F/afI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=tuxon.dev; spf=pass smtp.mailfrom=tuxon.dev; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b=VCieDP3Q; arc=none smtp.client-ip=209.85.221.51 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=tuxon.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=tuxon.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=tuxon.dev header.i=@tuxon.dev header.b="VCieDP3Q" Received: by mail-wr1-f51.google.com with SMTP id ffacd0b85a97d-33b2fba3176so997327f8f.0 for ; Thu, 08 Feb 2024 02:58:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1707389907; x=1707994707; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=gdKMGLoYpcuyVr+Gs2X3MdI3n2P7wXvDLhgtABtpYKQ=; b=VCieDP3QSbOLijLEGrmMZS5Sr6oVd265dcWicZMFNv8p/pPtmBBvzgtvesiigdUXXW eMyeHNYVQToC//ord9VCs5iICV2czPpmDRk2DLup1XtPWq/IRos02Z6PyWTHTagJH88t m9QN0V0B5PCaPX+Z7nUbnLYhZFOJmarAYrDY2wxZmmmQyziVdXt8IVBqai4IjeW3hz/u wspP4gGqT1MAPscv30cJwmurlXio/gBaihbWR3n6fPQEfK9ksEAWgXZgfTH/nLE3VceC O0o33/AnUjYd9COBQ8fsxD+ZwTt3FPFKGcZBT6KEEm7OR0nP7n7xoV9DqEjs75hsZHRZ woiA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707389907; x=1707994707; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=gdKMGLoYpcuyVr+Gs2X3MdI3n2P7wXvDLhgtABtpYKQ=; b=pu90dyKz93owvZ+m/J6TLniLqAsuXhQdyAboLZyg/tB2LbxpnRhvgr9B+5gzdDXwUT Ie/EWqHAhARhiYjaf7ZIZhqdibOHyUAls/o8IJ8vg6UoEvmd3AsB62Z9ZKsma27QzQmk pNB/tgj6EpcLLd9oy8DW/N9FWCMpcmLdFeOvzy6/xll6Rtvq8VgwdK0EReH2WdVe3Yb+ y/pj+emnnUh926OnQmqzPLBEAhrCf7QHK63TaPFLInnZSAgh/4TvQGMQisiZc18Z4XJ2 BlfStSA2LfZEjlhJc4lJLYppbOoS2X4uoRnY2yifiErLWMo4QPGwNk9RnK9aYbXJvIjM qPBw== X-Gm-Message-State: AOJu0Yzm8QuhkaTpbpz2ajltdFu9b8F5/pHnI1eKhNdznroE5KNTuNqk i0XMfmh3fN0kOcK2oadOO6OTkmuHGjKJIfsj0IM0AWgh6gA1WqpUW6SwATK6xYE= X-Google-Smtp-Source: AGHT+IHO63N9IizXhjNv8vkwbtKD7YMLRdiRv7uqbIiKptoPk7pYJqsYhfniIYKkZ8q7RK9/3wj68g== X-Received: by 2002:a5d:630f:0:b0:33b:2bad:ba10 with SMTP id i15-20020a5d630f000000b0033b2badba10mr5922906wru.12.1707389907090; Thu, 08 Feb 2024 02:58:27 -0800 (PST) X-Forwarded-Encrypted: i=1; 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 Received: from claudiu-X670E-Pro-RS.. ([82.78.167.45]) by smtp.gmail.com with ESMTPSA id a6-20020adffac6000000b0033b4a52bfbfsm3344153wrs.57.2024.02.08.02.58.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Feb 2024 02:58:26 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: wim@linux-watchdog.org, linux@roeck-us.net, robh@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, p.zabel@pengutronix.de, geert+renesas@glider.be, magnus.damm@gmail.com, biju.das.jz@bp.renesas.com Cc: linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org, claudiu.beznea@tuxon.dev, Claudiu Beznea Subject: [PATCH v6 3/9] watchdog: rzg2l_wdt: Use pm_runtime_resume_and_get() Date: Thu, 8 Feb 2024 12:58:11 +0200 Message-Id: <20240208105817.2619703-4-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240208105817.2619703-1-claudiu.beznea.uj@bp.renesas.com> References: <20240208105817.2619703-1-claudiu.beznea.uj@bp.renesas.com> Precedence: bulk X-Mailing-List: linux-watchdog@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Claudiu Beznea pm_runtime_get_sync() may return with error. In case it returns with error dev->power.usage_count needs to be decremented. pm_runtime_resume_and_get() takes care of this. Thus use it. Along with it the rzg2l_wdt_set_timeout() function was updated to propagate the result of rzg2l_wdt_start() to its caller. Fixes: 2cbc5cd0b55f ("watchdog: Add Watchdog Timer driver for RZ/G2L") Signed-off-by: Claudiu Beznea --- Changes in v6: - none Changes in v5: - none Changes in v4: - none Changes in v3: - none Changes in v2: - propagate the return code of rzg2l_wdt_start() to it's callers drivers/watchdog/rzg2l_wdt.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/drivers/watchdog/rzg2l_wdt.c b/drivers/watchdog/rzg2l_wdt.c index 1741f98ca67c..d87d4f50180c 100644 --- a/drivers/watchdog/rzg2l_wdt.c +++ b/drivers/watchdog/rzg2l_wdt.c @@ -123,8 +123,11 @@ static void rzg2l_wdt_init_timeout(struct watchdog_device *wdev) static int rzg2l_wdt_start(struct watchdog_device *wdev) { struct rzg2l_wdt_priv *priv = watchdog_get_drvdata(wdev); + int ret; - pm_runtime_get_sync(wdev->parent); + ret = pm_runtime_resume_and_get(wdev->parent); + if (ret) + return ret; /* Initialize time out */ rzg2l_wdt_init_timeout(wdev); @@ -150,6 +153,8 @@ static int rzg2l_wdt_stop(struct watchdog_device *wdev) static int rzg2l_wdt_set_timeout(struct watchdog_device *wdev, unsigned int timeout) { + int ret = 0; + wdev->timeout = timeout; /* @@ -159,10 +164,10 @@ static int rzg2l_wdt_set_timeout(struct watchdog_device *wdev, unsigned int time */ if (watchdog_active(wdev)) { rzg2l_wdt_stop(wdev); - rzg2l_wdt_start(wdev); + ret = rzg2l_wdt_start(wdev); } - return 0; + return ret; } static int rzg2l_wdt_restart(struct watchdog_device *wdev,