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([82.78.167.135]) by smtp.gmail.com with ESMTPSA id t34-20020a056402242200b0055823c2ae17sm14194241eda.64.2024.01.22.03.11.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jan 2024 03:11:39 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: wim@linux-watchdog.org, linux@roeck-us.net, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com, mturquette@baylibre.com, sboyd@kernel.org, p.zabel@pengutronix.de, 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, linux-clk@vger.kernel.org, claudiu.beznea@tuxon.dev, Claudiu Beznea Subject: [PATCH 01/10] clk: renesas: r9a08g045: Add clock and reset support for watchdog Date: Mon, 22 Jan 2024 13:11:06 +0200 Message-Id: <20240122111115.2861835-2-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240122111115.2861835-1-claudiu.beznea.uj@bp.renesas.com> References: <20240122111115.2861835-1-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 RZ/G3S has a watchdog module accessible by the Cortex-A core. Add clock and reset support for it. Signed-off-by: Claudiu Beznea Reviewed-by: Geert Uytterhoeven --- drivers/clk/renesas/r9a08g045-cpg.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/clk/renesas/r9a08g045-cpg.c b/drivers/clk/renesas/r9a08g045-cpg.c index 2582ba95256e..c3e6da2de197 100644 --- a/drivers/clk/renesas/r9a08g045-cpg.c +++ b/drivers/clk/renesas/r9a08g045-cpg.c @@ -193,6 +193,8 @@ static const struct rzg2l_mod_clk r9a08g045_mod_clks[] = { DEF_MOD("ia55_pclk", R9A08G045_IA55_PCLK, R9A08G045_CLK_P2, 0x518, 0), DEF_MOD("ia55_clk", R9A08G045_IA55_CLK, R9A08G045_CLK_P1, 0x518, 1), DEF_MOD("dmac_aclk", R9A08G045_DMAC_ACLK, R9A08G045_CLK_P3, 0x52c, 0), + DEF_MOD("wdt0_pclk", R9A08G045_WDT0_PCLK, R9A08G045_CLK_P0, 0x548, 0), + DEF_MOD("wdt0_clk", R9A08G045_WDT0_CLK, R9A08G045_OSCCLK, 0x548, 1), DEF_MOD("sdhi0_imclk", R9A08G045_SDHI0_IMCLK, CLK_SD0_DIV4, 0x554, 0), DEF_MOD("sdhi0_imclk2", R9A08G045_SDHI0_IMCLK2, CLK_SD0_DIV4, 0x554, 1), DEF_MOD("sdhi0_clk_hs", R9A08G045_SDHI0_CLK_HS, R9A08G045_CLK_SD0, 0x554, 2), @@ -219,6 +221,7 @@ static const struct rzg2l_reset r9a08g045_resets[] = { DEF_RST(R9A08G045_GIC600_GICRESET_N, 0x814, 0), DEF_RST(R9A08G045_GIC600_DBG_GICRESET_N, 0x814, 1), DEF_RST(R9A08G045_IA55_RESETN, 0x818, 0), + DEF_RST(R9A08G045_WDT0_PRESETN, 0x848, 0), DEF_RST(R9A08G045_SDHI0_IXRST, 0x854, 0), DEF_RST(R9A08G045_SDHI1_IXRST, 0x854, 1), DEF_RST(R9A08G045_SDHI2_IXRST, 0x854, 2), From patchwork Mon Jan 22 11:11:07 2024 Content-Type: text/plain; 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([82.78.167.135]) by smtp.gmail.com with ESMTPSA id t34-20020a056402242200b0055823c2ae17sm14194241eda.64.2024.01.22.03.11.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jan 2024 03:11:41 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: wim@linux-watchdog.org, linux@roeck-us.net, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com, mturquette@baylibre.com, sboyd@kernel.org, p.zabel@pengutronix.de, 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, linux-clk@vger.kernel.org, claudiu.beznea@tuxon.dev, Claudiu Beznea Subject: [PATCH 02/10] watchdog: rzg2l_wdt: Use pm_runtime_resume_and_get() Date: Mon, 22 Jan 2024 13:11:07 +0200 Message-Id: <20240122111115.2861835-3-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240122111115.2861835-1-claudiu.beznea.uj@bp.renesas.com> References: <20240122111115.2861835-1-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. Fixes: 2cbc5cd0b55f ("watchdog: Add Watchdog Timer driver for RZ/G2L") Signed-off-by: Claudiu Beznea --- drivers/watchdog/rzg2l_wdt.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/watchdog/rzg2l_wdt.c b/drivers/watchdog/rzg2l_wdt.c index 1741f98ca67c..4ab9e7c5e771 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); From patchwork Mon Jan 22 11:11:08 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 765157 Received: from mail-lf1-f49.google.com (mail-lf1-f49.google.com [209.85.167.49]) (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 A94AA3DBB1 for ; Mon, 22 Jan 2024 11:11:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.49 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921907; cv=none; b=Mr9e0PBukFJFO5AZIQK6CsnTmkdN3pavWRAwXvqHzoVLfCpxg22Smn2LVAbt0mTlhJ/ndS3xET6wukAouB3HSxqerJ4nzKuOHxCsVauVWnEeeySAUyPA6Uquy37VfS/DCUpkyGDd3FD5XgxpdSMzG/sN6H50KVK/A8QJOcinE48= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921907; c=relaxed/simple; bh=P0pml+XvYXypPwvm13fUsxAbzg1yShpyAM0plENv8P0=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=VX2hQsK/Kw0NycpdV+iGdmeDySoTBTU6RXmKcK+8AOavcqVB4in1mNapjfI5jQuVKKWrNXxHoS2WoX9s/Cllsn2AjJs81iOhuheWfJyROxFJcxrWoQAnn5QRgvw1Cyw5eU/ghOxyXWsTsN2RabL9pULnljeOsBY5BJiaUZaVxPw= 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=j08GBO+H; arc=none smtp.client-ip=209.85.167.49 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="j08GBO+H" Received: by mail-lf1-f49.google.com with SMTP id 2adb3069b0e04-50ea98440a7so2786763e87.1 for ; Mon, 22 Jan 2024 03:11:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1705921904; x=1706526704; 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=bZsglpxv5Ruw+cmAq+FH/8gH/cxWxlJ7CUyURo/5TWs=; b=j08GBO+HdsEhh9qo0bkJ0Iq+yLSlU17x8z4tsHgTSLz3QSK4n1TXEKFSaZLpIIhT11 Ciagaz+eq2hept+9BLQunqdMrB3HhMsFnFGIQb1LnLcv2guMU9voif9yadlm/AqilRTv n0Kb9fGF62aBOHnZ/lWJ26VOTTt61VbraAUFGdwIdmhq0UGAYSVl3lZ97U0v6Tl0IJAJ vEhwFy2RtsHKeZSWrP5brLIzCwMliwHwhS5c6Zt9VtG4pK2u3R0x3GIwe2L7fZ1QaL3d 8BbPIjrzgVHeCuBPt94j+ACTU7ke/4W/nuj1wJPPsC1+sz+HEQTH5a8VsTpweOikXpVd dGBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705921904; x=1706526704; 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=bZsglpxv5Ruw+cmAq+FH/8gH/cxWxlJ7CUyURo/5TWs=; b=Gkc7oibHdf3KaaXOFDNu9Jrk57YB00+wsCaaUPAwCBfcsZWBqIaokW/VUer5WjFbsm eSQkeo0bg0J5pRb3QLt05AOAajxfFhdp3uBcuLUl3dffb3vvNes54pMl0epSJnruG/jK 3oiv4w5x12RcajQA7EJVAV8D4u4gk1Rwbea4VPL+Xad/6YOs2KWz9gRLM2Gq2S3eakv4 qZhDOQXInlYo1+39GeaSyMjdBhRw3StHJXYp7mfBRnsDgH9Gmq/nJGgqSDMfLiFFxCrQ /15/Sb3xQXbS6UFFGAe+hH4LGZN/gOknPQyIniEHyuTkuHkEGukmfdOc3y7YgDmNTz8n QISg== X-Gm-Message-State: AOJu0YxHuG8a0NqARYCKeFGyLoiCZObC9e5Z27wdVHpfgiJwTQiHsSCh YrvqiYZ/E2D79L9lGw5nf3dhZShATjtdGVXFFrnvqojdeYig/4rmP+47hAwMabQ= X-Google-Smtp-Source: AGHT+IFdtngNav7jLN7NRbMBgpNlKLytDtSGZw9R5aAcExfwEd7H5jWK1DXLkRkagwmRGN3K3IIs2w== X-Received: by 2002:a05:6512:3e19:b0:50e:e2e1:9cc8 with SMTP id i25-20020a0565123e1900b0050ee2e19cc8mr1209162lfv.117.1705921903651; Mon, 22 Jan 2024 03:11:43 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.135]) by smtp.gmail.com with ESMTPSA id t34-20020a056402242200b0055823c2ae17sm14194241eda.64.2024.01.22.03.11.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jan 2024 03:11:43 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: wim@linux-watchdog.org, linux@roeck-us.net, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com, mturquette@baylibre.com, sboyd@kernel.org, p.zabel@pengutronix.de, 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, linux-clk@vger.kernel.org, claudiu.beznea@tuxon.dev, Claudiu Beznea Subject: [PATCH 03/10] watchdog: rzg2l_wdt: Check return status of pm_runtime_put() Date: Mon, 22 Jan 2024 13:11:08 +0200 Message-Id: <20240122111115.2861835-4-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240122111115.2861835-1-claudiu.beznea.uj@bp.renesas.com> References: <20240122111115.2861835-1-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_put() may return an error code. Check its return status. Fixes: 2cbc5cd0b55f ("watchdog: Add Watchdog Timer driver for RZ/G2L") Signed-off-by: Claudiu Beznea --- drivers/watchdog/rzg2l_wdt.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/watchdog/rzg2l_wdt.c b/drivers/watchdog/rzg2l_wdt.c index 4ab9e7c5e771..0554965027cd 100644 --- a/drivers/watchdog/rzg2l_wdt.c +++ b/drivers/watchdog/rzg2l_wdt.c @@ -144,9 +144,13 @@ static int rzg2l_wdt_start(struct watchdog_device *wdev) static int rzg2l_wdt_stop(struct watchdog_device *wdev) { struct rzg2l_wdt_priv *priv = watchdog_get_drvdata(wdev); + int ret; rzg2l_wdt_reset(priv); - pm_runtime_put(wdev->parent); + + ret = pm_runtime_put(wdev->parent); + if (ret < 0) + return ret; return 0; } From patchwork Mon Jan 22 11:11:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 765595 Received: from mail-ed1-f43.google.com (mail-ed1-f43.google.com [209.85.208.43]) (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 275553EA73 for ; Mon, 22 Jan 2024 11:11:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.43 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921908; cv=none; b=cSfJjbmhE+LilGQq4QOXOV2ndS/1e7JKJNroxjP9fmkHsnIKbUDMcHxMI6oYH4Yxw8HAeeXEpmNe4G8v+C2IhAC5t74rHxEIxEyEKkE3bzmASf3xQoxOx0i3I+McBo6r0SNba/Qwu0wv1V+En59QIHs2Vu0Gcrle/rGssickDx4= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921908; c=relaxed/simple; bh=LIPwfTVYzjHtnuFd0jU3NL/6FuMhnlnEQLJY/PrGiyo=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=Vlqzfxh7RcH1aBRTcSN3Upjtf0xMGmQtefU8OMx0SjTwqp/ZueXoGHNpAfh2ALKYPccmqEeFHjxPt+two1l3rhT8EAjiqfnokYXzoN6WamXCfInENImFMsjjmCDAdrCf5ow+Sqm1KyDZSl1TChpV6oLveFO/TIOZ43o2O4MF3h4= 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=IhcUJMwS; arc=none smtp.client-ip=209.85.208.43 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="IhcUJMwS" Received: by mail-ed1-f43.google.com with SMTP id 4fb4d7f45d1cf-5578485fc0eso2876308a12.1 for ; Mon, 22 Jan 2024 03:11:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1705921905; x=1706526705; 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=pqtCeRjkRQZF1X7FzpXbbf307qf5/3u+eo/6taxNjjo=; b=IhcUJMwSmBVgnNoSy2KtZk8LT4jyaB6dfGx1vU/CM+Oe4jLPM324OaOtvug7kzCZO3 EcEylgyxpCS26STLgoAfklQVfhnrTcMzlcWW+OabsZIZ019tRBTCGkLdUw7Q+TzPcpdb gHwg0VL4cFiqNJI0hNqalvHyP8Ggr+R/2X4Kjw4b84AWLvBrDdDog3DvRc0xA/+uUqku c+Bl7srOSJJKQXqGzER397Ton6iiUyOli2iVh6Eeky1vTbQGHzTZj7j3x0uLyGqFsfsO Nj5vLoqydbKAKC57L0x86AV/L+sBstKi+LHNAOdp0ZDXcWZ/CMEs+WSLZxkM5u/I7zSb JUkA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705921905; x=1706526705; 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=pqtCeRjkRQZF1X7FzpXbbf307qf5/3u+eo/6taxNjjo=; b=tj8+wflrhO15h4ipgTrYTBH/kP65xIa4huKgvI4/CHOWM0b3M9A7zlwNiGieR5RrE7 RuBIhsyNS9vxiQ9HnWviFnqYkO6Kdhjv5j5qr6zkPiE+u+oEmzarRlTJqU1Mz6pnmddH H6sfxxQsPYSFx8LzkYdnublpH/t5Pri7KFmqo8+SXheirTh4gPiDmjGl3Y+SvIcmwZdY pt1XGENs3Wf8+PFOcnv31COyzhtJ6etZGeFldTmNtSIBUlYPqsSa7/mLoMza0mpl97D4 tXeqf+c726QMYjkYF6wgeTFaM9UsCaJFHmC9fE8xkjmImx+cnXCIuzfZku4M+bwPmQtj /6ig== X-Gm-Message-State: AOJu0YzB39hzwqnzZ2X0IeWKJsymMQL5fl+dL4hPoYJdNEgOjaDTZzXI Qd08HoZtDLwP+u/wTHuFPJCHKg72sCNfPb/lL21oawmVyL0uM8RTaPyGw5L3jTA= X-Google-Smtp-Source: AGHT+IEgcYIELtC0sF+RvoYDICw9Ux8ufzqP2HIXOse25Hex57bekVk6pO079j4rGH6x+e/vxmiF2w== X-Received: by 2002:a50:a6dd:0:b0:559:ccc4:157e with SMTP id f29-20020a50a6dd000000b00559ccc4157emr2518301edc.30.1705921905246; Mon, 22 Jan 2024 03:11:45 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.135]) by smtp.gmail.com with ESMTPSA id t34-20020a056402242200b0055823c2ae17sm14194241eda.64.2024.01.22.03.11.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jan 2024 03:11:44 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: wim@linux-watchdog.org, linux@roeck-us.net, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com, mturquette@baylibre.com, sboyd@kernel.org, p.zabel@pengutronix.de, 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, linux-clk@vger.kernel.org, claudiu.beznea@tuxon.dev, Claudiu Beznea Subject: [PATCH 04/10] watchdog: rzg2l_wdt: Remove reset de-assert on probe/stop Date: Mon, 22 Jan 2024 13:11:09 +0200 Message-Id: <20240122111115.2861835-5-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240122111115.2861835-1-claudiu.beznea.uj@bp.renesas.com> References: <20240122111115.2861835-1-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 There is no need to de-assert the reset signal on probe as the watchdog is not used prior executing start. Also, the clocks are not enabled in probe (pm_runtime_enable() doesn't do that), thus this is another indicator that the watchdog wasn't used previously like this. Instead, keep the watchdog hardware in its previous state at probe (by default it is in reset state), enable it when it is started and move it to reset state when it is stopped. This saves some extra power when the watchdog is unused. Signed-off-by: Claudiu Beznea --- drivers/watchdog/rzg2l_wdt.c | 26 +++++++++++++++----------- 1 file changed, 15 insertions(+), 11 deletions(-) diff --git a/drivers/watchdog/rzg2l_wdt.c b/drivers/watchdog/rzg2l_wdt.c index 0554965027cd..988926e50741 100644 --- a/drivers/watchdog/rzg2l_wdt.c +++ b/drivers/watchdog/rzg2l_wdt.c @@ -129,6 +129,10 @@ static int rzg2l_wdt_start(struct watchdog_device *wdev) if (ret) return ret; + ret = reset_control_deassert(priv->rstc); + if (ret) + return ret; + /* Initialize time out */ rzg2l_wdt_init_timeout(wdev); @@ -146,7 +150,9 @@ static int rzg2l_wdt_stop(struct watchdog_device *wdev) struct rzg2l_wdt_priv *priv = watchdog_get_drvdata(wdev); int ret; - rzg2l_wdt_reset(priv); + ret = reset_control_assert(priv->rstc); + if (ret) + return ret; ret = pm_runtime_put(wdev->parent); if (ret < 0) @@ -181,6 +187,12 @@ static int rzg2l_wdt_restart(struct watchdog_device *wdev, clk_prepare_enable(priv->osc_clk); if (priv->devtype == WDT_RZG2L) { + int ret; + + ret = reset_control_deassert(priv->rstc); + if (ret) + return ret; + /* Generate Reset (WDTRSTB) Signal on parity error */ rzg2l_wdt_write(priv, 0, PECR); @@ -231,13 +243,11 @@ static const struct watchdog_ops rzg2l_wdt_ops = { .restart = rzg2l_wdt_restart, }; -static void rzg2l_wdt_reset_assert_pm_disable(void *data) +static void rzg2l_wdt_pm_disable(void *data) { struct watchdog_device *wdev = data; - struct rzg2l_wdt_priv *priv = watchdog_get_drvdata(wdev); pm_runtime_disable(wdev->parent); - reset_control_assert(priv->rstc); } static int rzg2l_wdt_probe(struct platform_device *pdev) @@ -280,10 +290,6 @@ static int rzg2l_wdt_probe(struct platform_device *pdev) return dev_err_probe(&pdev->dev, PTR_ERR(priv->rstc), "failed to get cpg reset"); - ret = reset_control_deassert(priv->rstc); - if (ret) - return dev_err_probe(dev, ret, "failed to deassert"); - priv->devtype = (uintptr_t)of_device_get_match_data(dev); if (priv->devtype == WDT_RZV2M) { @@ -304,9 +310,7 @@ static int rzg2l_wdt_probe(struct platform_device *pdev) priv->wdev.timeout = WDT_DEFAULT_TIMEOUT; watchdog_set_drvdata(&priv->wdev, priv); - ret = devm_add_action_or_reset(&pdev->dev, - rzg2l_wdt_reset_assert_pm_disable, - &priv->wdev); + ret = devm_add_action_or_reset(&pdev->dev, rzg2l_wdt_pm_disable, &priv->wdev); if (ret < 0) return ret; From patchwork Mon Jan 22 11:11:10 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 765156 Received: from mail-ed1-f41.google.com (mail-ed1-f41.google.com [209.85.208.41]) (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 B43F63F8C2 for ; Mon, 22 Jan 2024 11:11:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.41 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921910; cv=none; b=NC0GSb6sxOZ7IUE9cvEj1I47lo1hQJFfGwBIqseImnkuHJs4Z8pSyn+BZgNQqRqkhmsyjuo6o7yDXkBTni1YkVB3cUKASvncmAywR+JLGEpFa9zK9rdgv0dwRp733JUZTJRTZ4sX/CzgMf0AvJiYIlqkDop4HDl53xKOdURmE3Q= ARC-Message-Signature: i=1; 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([82.78.167.135]) by smtp.gmail.com with ESMTPSA id t34-20020a056402242200b0055823c2ae17sm14194241eda.64.2024.01.22.03.11.45 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jan 2024 03:11:46 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: wim@linux-watchdog.org, linux@roeck-us.net, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com, mturquette@baylibre.com, sboyd@kernel.org, p.zabel@pengutronix.de, 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, linux-clk@vger.kernel.org, claudiu.beznea@tuxon.dev, Claudiu Beznea Subject: [PATCH 05/10] watchdog: rzg2l_wdt: Remove comparison with zero Date: Mon, 22 Jan 2024 13:11:10 +0200 Message-Id: <20240122111115.2861835-6-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240122111115.2861835-1-claudiu.beznea.uj@bp.renesas.com> References: <20240122111115.2861835-1-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 devm_add_action_or_reset() could return -ENOMEM or zero. Thus, remove comparison with zero of the returning value to make code simpler. Signed-off-by: Claudiu Beznea --- drivers/watchdog/rzg2l_wdt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/watchdog/rzg2l_wdt.c b/drivers/watchdog/rzg2l_wdt.c index 988926e50741..38607673e1a5 100644 --- a/drivers/watchdog/rzg2l_wdt.c +++ b/drivers/watchdog/rzg2l_wdt.c @@ -311,7 +311,7 @@ static int rzg2l_wdt_probe(struct platform_device *pdev) watchdog_set_drvdata(&priv->wdev, priv); ret = devm_add_action_or_reset(&pdev->dev, rzg2l_wdt_pm_disable, &priv->wdev); - if (ret < 0) + if (ret) return ret; watchdog_set_nowayout(&priv->wdev, nowayout); From patchwork Mon Jan 22 11:11:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 765594 Received: from mail-ed1-f50.google.com (mail-ed1-f50.google.com [209.85.208.50]) (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 7417E3F8FD for ; Mon, 22 Jan 2024 11:11:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.50 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921912; cv=none; b=cP5qwdCTAlxl418Kt4ehYxefoRpPTuhwri+3iT0RofBeCGG+nPP5z5MBLmoSlxtOgQB9obcct+/ZQJoAZVN/q188pgmb2+yawPNMXlYoY8csL598NdNRujvzhT/f+BhpSVIKFrqdvP6gDt3nBmVJQHEcDsbTQtTSdbegr0cqefU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921912; c=relaxed/simple; bh=xaqBRK9EGIdJH9HHkMygHgD7aoVyRCxVtV2V46YhORc=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=tV7oB7EmGP/VK3t5MfZhgszvIR+hUhEzMFxkqxByhaFsqG923AZHudpxgABlMSu+jKo1bxoa7lx2MwElbeARi5xYzd+aOkL+IAxtjwyHKpL/IusuyN10IoisajoFqnPwXciLw8rrpxsBjIMM9+T9ojuhJaAtcYUEOkLyzXXOAZs= 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=UdjYkt5M; arc=none smtp.client-ip=209.85.208.50 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="UdjYkt5M" Received: by mail-ed1-f50.google.com with SMTP id 4fb4d7f45d1cf-55c1ac8d2f2so1288365a12.2 for ; Mon, 22 Jan 2024 03:11:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1705921908; x=1706526708; 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=TwcmiOqVIksAk67lqc9iZZkd3iM6L9ti8qSBC2scoWY=; b=UdjYkt5M5lRogzDrBHM88nRIj1jtzb+6EuRlt09+nklvcvhUDwqTObm71o5Qj1yGmI g9WszGakcpYoHgDZ7CoYKfkk+W3AmlzAiNTLVXNhS2fuLM5Cd/l5xUJIDAgWeQRVXvNE d77XXPftKJhh+olvjz95dk8Fw1OnyZVQXcernXS47wTDNwTcvG1BHoPNaBlABAkWYuhO tX7hRT4bxFvCQnnd+uGTT9cxGSceEIjr1ZJpwtLzZe+knSHM/5WIr//MvQ/ozVAlBmw7 2T2OmrRa5NueYZG+yl5xvL/S8kq6zMd1dTsTyN5DbRg0Yh7KFXTgbkAK0TIxV+ae1p04 2YWw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705921908; x=1706526708; 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=TwcmiOqVIksAk67lqc9iZZkd3iM6L9ti8qSBC2scoWY=; b=atSXieBke2SXqg0/O1FpHqTvzcDiFAfdlwjacp2LWJKrEe+MrIPw0mfTToWZ82Mb9U /wh9y+jQo3/xKP3k8tuJ3hf0x5zxs2rqgK6wCDaE9CLcC9kyAuf02xLc2pF54Q9MfyW8 HMtUQ+8OP1TgRYRB97PO1/59rT4nwWJNjDwX/iqkCs8Prr625+u46DZaSFhbOTDVz49r oISn4A3Fljd84z6yKDqWXTjdiSxeKkbbZAECzvNuAtkGWgHTsZ3/QsKrKbp432tAoOuf NAithhezNKuMuvLt4RfEqSa4d0hjQrVsK+hHyUDk8gvnpHD7RfQBzm4SQTWPMNLGHatA +ggA== X-Gm-Message-State: AOJu0Yy7s7cxPgWqYodgDuXuW2JqCEx2tN6gHvSuJ7vWmABtGxe9vBad pCVrOf5OMd+uokjL8RTEQEYMBfDN5hRxy8YyOF/YTiEFfda4s25Agn+uaBpZHjE= X-Google-Smtp-Source: AGHT+IGIabCWO88Pu8kLqsy9OECGdMHiSHXOfkdsobiN5qTeWf5eV/ONXAgZO6Grfcpvrb83g6mNKA== X-Received: by 2002:a05:6402:12d6:b0:55a:2e1f:17e8 with SMTP id k22-20020a05640212d600b0055a2e1f17e8mr2064367edx.49.1705921908663; Mon, 22 Jan 2024 03:11:48 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.135]) by smtp.gmail.com with ESMTPSA id t34-20020a056402242200b0055823c2ae17sm14194241eda.64.2024.01.22.03.11.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jan 2024 03:11:48 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: wim@linux-watchdog.org, linux@roeck-us.net, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com, mturquette@baylibre.com, sboyd@kernel.org, p.zabel@pengutronix.de, 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, linux-clk@vger.kernel.org, claudiu.beznea@tuxon.dev, Claudiu Beznea Subject: [PATCH 06/10] watchdog: rzg2l_wdt: Rely on the reset driver for doing proper reset Date: Mon, 22 Jan 2024 13:11:11 +0200 Message-Id: <20240122111115.2861835-7-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240122111115.2861835-1-claudiu.beznea.uj@bp.renesas.com> References: <20240122111115.2861835-1-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 The reset driver has been adapted in commit da235d2fac21 ("clk: renesas: rzg2l: Check reset monitor registers") to check the reset monitor bits before declaring reset asserts/de-asserts as successful/failure operations. With that, there is no need to keep the reset workaround for RZ/V2M in place in the watchdog driver. Signed-off-by: Claudiu Beznea --- drivers/watchdog/rzg2l_wdt.c | 39 ++++-------------------------------- 1 file changed, 4 insertions(+), 35 deletions(-) diff --git a/drivers/watchdog/rzg2l_wdt.c b/drivers/watchdog/rzg2l_wdt.c index 38607673e1a5..9333dc1a75ab 100644 --- a/drivers/watchdog/rzg2l_wdt.c +++ b/drivers/watchdog/rzg2l_wdt.c @@ -8,7 +8,6 @@ #include #include #include -#include #include #include #include @@ -54,35 +53,11 @@ struct rzg2l_wdt_priv { struct reset_control *rstc; unsigned long osc_clk_rate; unsigned long delay; - unsigned long minimum_assertion_period; struct clk *pclk; struct clk *osc_clk; enum rz_wdt_type devtype; }; -static int rzg2l_wdt_reset(struct rzg2l_wdt_priv *priv) -{ - int err, status; - - if (priv->devtype == WDT_RZV2M) { - /* WDT needs TYPE-B reset control */ - err = reset_control_assert(priv->rstc); - if (err) - return err; - ndelay(priv->minimum_assertion_period); - err = reset_control_deassert(priv->rstc); - if (err) - return err; - err = read_poll_timeout(reset_control_status, status, - status != 1, 0, 1000, false, - priv->rstc); - } else { - err = reset_control_reset(priv->rstc); - } - - return err; -} - static void rzg2l_wdt_wait_delay(struct rzg2l_wdt_priv *priv) { /* delay timer when change the setting register */ @@ -182,13 +157,12 @@ static int rzg2l_wdt_restart(struct watchdog_device *wdev, unsigned long action, void *data) { struct rzg2l_wdt_priv *priv = watchdog_get_drvdata(wdev); + int ret; clk_prepare_enable(priv->pclk); clk_prepare_enable(priv->osc_clk); if (priv->devtype == WDT_RZG2L) { - int ret; - ret = reset_control_deassert(priv->rstc); if (ret) return ret; @@ -200,7 +174,9 @@ static int rzg2l_wdt_restart(struct watchdog_device *wdev, rzg2l_wdt_write(priv, PEEN_FORCE, PEEN); } else { /* RZ/V2M doesn't have parity error registers */ - rzg2l_wdt_reset(priv); + ret = reset_control_reset(priv->rstc); + if (ret) + return ret; wdev->timeout = 0; @@ -292,13 +268,6 @@ static int rzg2l_wdt_probe(struct platform_device *pdev) priv->devtype = (uintptr_t)of_device_get_match_data(dev); - if (priv->devtype == WDT_RZV2M) { - priv->minimum_assertion_period = RZV2M_A_NSEC + - 3 * F2CYCLE_NSEC(pclk_rate) + 5 * - max(F2CYCLE_NSEC(priv->osc_clk_rate), - F2CYCLE_NSEC(pclk_rate)); - } - pm_runtime_enable(&pdev->dev); priv->wdev.info = &rzg2l_wdt_ident; From patchwork Mon Jan 22 11:11:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 765155 Received: from mail-ed1-f42.google.com (mail-ed1-f42.google.com [209.85.208.42]) (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 07FBE4A9A4 for ; Mon, 22 Jan 2024 11:11:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.42 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921913; cv=none; b=pI3X6dYRbJHOGEkLAbqYkvbJ3ZfFfQ3FGwCgcFP7EuPGG7DLdCucDN7YcEkJki4ZrX7Br+EiET0AGMzebJN1T+46dCW3g0hZe4fnbLkMSsISTiZiThLyVMapUNiMbCdlG5MNOkk7QmAj45YIgLqMEr2on2NC3AikjzSlKSXFL0k= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921913; 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([82.78.167.135]) by smtp.gmail.com with ESMTPSA id t34-20020a056402242200b0055823c2ae17sm14194241eda.64.2024.01.22.03.11.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jan 2024 03:11:49 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: wim@linux-watchdog.org, linux@roeck-us.net, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com, mturquette@baylibre.com, sboyd@kernel.org, p.zabel@pengutronix.de, 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, linux-clk@vger.kernel.org, claudiu.beznea@tuxon.dev, Claudiu Beznea Subject: [PATCH 07/10] watchdog: rzg2l_wdt: Add suspend/resume support Date: Mon, 22 Jan 2024 13:11:12 +0200 Message-Id: <20240122111115.2861835-8-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240122111115.2861835-1-claudiu.beznea.uj@bp.renesas.com> References: <20240122111115.2861835-1-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 The RZ/G3S supports deep sleep states where power to most of the IP blocks is cut off. To ensure proper working of the watchdog when resuming from such states, the suspend function is stopping the watchdog and the resume function is starting it. There is no need to configure the watchdog in case the watchdog was stopped prior to starting suspend. Signed-off-by: Claudiu Beznea --- drivers/watchdog/rzg2l_wdt.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/drivers/watchdog/rzg2l_wdt.c b/drivers/watchdog/rzg2l_wdt.c index 9333dc1a75ab..186796b739f7 100644 --- a/drivers/watchdog/rzg2l_wdt.c +++ b/drivers/watchdog/rzg2l_wdt.c @@ -279,6 +279,7 @@ static int rzg2l_wdt_probe(struct platform_device *pdev) priv->wdev.timeout = WDT_DEFAULT_TIMEOUT; watchdog_set_drvdata(&priv->wdev, priv); + dev_set_drvdata(dev, priv); ret = devm_add_action_or_reset(&pdev->dev, rzg2l_wdt_pm_disable, &priv->wdev); if (ret) return ret; @@ -300,10 +301,35 @@ static const struct of_device_id rzg2l_wdt_ids[] = { }; MODULE_DEVICE_TABLE(of, rzg2l_wdt_ids); +static int rzg2l_wdt_suspend_late(struct device *dev) +{ + struct rzg2l_wdt_priv *priv = dev_get_drvdata(dev); + + if (!watchdog_active(&priv->wdev)) + return 0; + + return rzg2l_wdt_stop(&priv->wdev); +} + +static int rzg2l_wdt_resume_early(struct device *dev) +{ + struct rzg2l_wdt_priv *priv = dev_get_drvdata(dev); + + if (!watchdog_active(&priv->wdev)) + return 0; + + return rzg2l_wdt_start(&priv->wdev); +} + +static const struct dev_pm_ops rzg2l_wdt_pm_ops = { + LATE_SYSTEM_SLEEP_PM_OPS(rzg2l_wdt_suspend_late, rzg2l_wdt_resume_early) +}; + static struct platform_driver rzg2l_wdt_driver = { .driver = { .name = "rzg2l_wdt", .of_match_table = rzg2l_wdt_ids, + .pm = pm_ptr(&rzg2l_wdt_pm_ops), }, .probe = rzg2l_wdt_probe, }; From patchwork Mon Jan 22 11:11:13 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 765593 Received: from mail-lj1-f172.google.com (mail-lj1-f172.google.com [209.85.208.172]) (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 D4A794B5AB for ; Mon, 22 Jan 2024 11:11:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.172 ARC-Seal: i=1; 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([82.78.167.135]) by smtp.gmail.com with ESMTPSA id t34-20020a056402242200b0055823c2ae17sm14194241eda.64.2024.01.22.03.11.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jan 2024 03:11:51 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: wim@linux-watchdog.org, linux@roeck-us.net, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com, mturquette@baylibre.com, sboyd@kernel.org, p.zabel@pengutronix.de, 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, linux-clk@vger.kernel.org, claudiu.beznea@tuxon.dev, Claudiu Beznea Subject: [PATCH 08/10] dt-bindings: watchdog: renesas,wdt: Document RZ/G3S support Date: Mon, 22 Jan 2024 13:11:13 +0200 Message-Id: <20240122111115.2861835-9-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240122111115.2861835-1-claudiu.beznea.uj@bp.renesas.com> References: <20240122111115.2861835-1-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 Document the support for the watchdog IP available on RZ/G3S SoC. The watchdog IP available on RZ/G3S SoC is identical to the one found on RZ/G2UL SoC. Signed-off-by: Claudiu Beznea Reviewed-by: Geert Uytterhoeven --- Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml b/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml index 951a7d54135a..220763838df0 100644 --- a/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml +++ b/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml @@ -29,6 +29,7 @@ properties: - renesas,r9a07g043-wdt # RZ/G2UL and RZ/Five - renesas,r9a07g044-wdt # RZ/G2{L,LC} - renesas,r9a07g054-wdt # RZ/V2L + - renesas,r9a08g045-wdt # RZ/G3S - const: renesas,rzg2l-wdt - items: From patchwork Mon Jan 22 11:11:14 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 765154 Received: from mail-ed1-f42.google.com (mail-ed1-f42.google.com [209.85.208.42]) (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 6EDC44BA82 for ; Mon, 22 Jan 2024 11:11:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.42 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921916; cv=none; b=CXys3vpEeqdKHq3blZdmAGf4DB9VyZqcm24Kg9GCl4yKMojTSGqS2qKh4Bwg6H3D3xfoOzDyM2OxwXuJ6BbQsTkCaSjTCAN4w0dZcpaH1C05KPZbdq8x8pMjSYVAb6p8OEzCATd9qd+7Y2W+ZDPcEr5Gk1dBKBMnK8cMz/APrf0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921916; c=relaxed/simple; bh=qazOWi0/wkt4tNXD2u9ZsGRjtDApxIhQD3uVv18+fTs=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=AyOPkcmbVBqGcdFG/bVft4Nks8t6Tkub+vYjvviOm+rAQ3cx0QKTGlg9N1/RlapribLtSGz6N0AgcAPmEhcIdvDLJPb3hNKoNFsl7hLvZwfEgLe9w3bKj6l+2Mab8yp+2BD0se/bfIAxJUMHWlfLb0G95Aeep0fzDsTPEI20/Cg= 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=TzVucT57; arc=none smtp.client-ip=209.85.208.42 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="TzVucT57" Received: by mail-ed1-f42.google.com with SMTP id 4fb4d7f45d1cf-55a90b2b554so1605478a12.1 for ; Mon, 22 Jan 2024 03:11:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1705921913; x=1706526713; 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=1/yq0en0upSEiAFhoOCAc7XTDKkkXSUYjmotseXuMY0=; b=TzVucT57GuzCZ/o9Mqn7+j8sbMO9dejDsUv5xMCdHDZAEednUbWTQEG8P0uwz+gHCH tdtOCUqkZzs7egq1iz/eFt/YEXU7YOJbwmezrg/q9P5iQlqq7pdqhdgrj2JTJWT6fhTq PFpoOW7o7fJaSZaE3TXTM2bYRJUT8E69dC+yKSNCJtENxLju0X0WTcws/S5bDKHYxD2m 80Z41aBIJJXeRaj1uiVcooCeZl7ju4OgJsBCEh8rCKKlRknoVTGIAkEbmD+ypbAjDRfu NW7pZtX/3OKk1L+BJ5J4GGJVBlFsPL7rPEwa5RFghIq4AfsrFvvmKjEhdBHhDAgHhfcW 974Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705921913; x=1706526713; 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=1/yq0en0upSEiAFhoOCAc7XTDKkkXSUYjmotseXuMY0=; b=dWtneC4svaULNG8khEIda6axhlmMX1GDvSwCZgXNbBnxlhU82ZusXYkgqXC5eO02OB v9k+rMXSgJ5HQ6VYqSEoHhaRbZplugCztSlKVaq3qc7YwxDF1iDcus0Kz4t43GbRpauN NB0pE3AntwIQVDVaXvEWRbr3ed3Dt3FyySr1l/uw4YdGWY2EfsLJ7ICrU57fYP8UzG7R cK3JI5XwrZbt+5k+0dNZcSzBHm7yTnBOqvNiYB8A6uxF2pnEVpuXxwgQATXZ8QPpQA3L VUh5XsfFvw6hUZqLdshMug5+DhGhs8knbytLbCixeZFsyECdPKyckMdcK6VykIYE3Ur3 sCCg== X-Gm-Message-State: AOJu0Yz+oXiNwdvtvGbiq3pFPQkIkINtHa2WlZLoZUryB8hBjh2X+IT2 kDVNF0iF1xphVRvJMogTeAEGdTqgeTIomipcOEoOV8Lhpf7lkxqAWKIRGymGP2w= X-Google-Smtp-Source: AGHT+IFrorgV8xW2A5dJ9RhzKCiKxJHzvqYy39TZW4Gdx74LkKiO1Q8pZsRwPvYENyXdxM0Y7A7ntg== X-Received: by 2002:a50:9e8e:0:b0:55a:64ed:e34b with SMTP id a14-20020a509e8e000000b0055a64ede34bmr2002822edf.39.1705921913726; Mon, 22 Jan 2024 03:11:53 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.135]) by smtp.gmail.com with ESMTPSA id t34-20020a056402242200b0055823c2ae17sm14194241eda.64.2024.01.22.03.11.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jan 2024 03:11:53 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: wim@linux-watchdog.org, linux@roeck-us.net, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com, mturquette@baylibre.com, sboyd@kernel.org, p.zabel@pengutronix.de, 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, linux-clk@vger.kernel.org, claudiu.beznea@tuxon.dev, Claudiu Beznea Subject: [PATCH 09/10] arm64: dts: renesas: r9a08g045: Add watchdog node Date: Mon, 22 Jan 2024 13:11:14 +0200 Message-Id: <20240122111115.2861835-10-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240122111115.2861835-1-claudiu.beznea.uj@bp.renesas.com> References: <20240122111115.2861835-1-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 Add the DT node for the watchdog IP accessible by Cortex-A of RZ/G3S SoC (R9108G045). Signed-off-by: Claudiu Beznea Reviewed-by: Geert Uytterhoeven --- arch/arm64/boot/dts/renesas/r9a08g045.dtsi | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r9a08g045.dtsi b/arch/arm64/boot/dts/renesas/r9a08g045.dtsi index 02fd68b06eea..19bbcae01d80 100644 --- a/arch/arm64/boot/dts/renesas/r9a08g045.dtsi +++ b/arch/arm64/boot/dts/renesas/r9a08g045.dtsi @@ -269,6 +269,20 @@ gic: interrupt-controller@12400000 { <0x0 0x12440000 0 0x60000>; interrupts = ; }; + + wdt0: watchdog@12800800 { + compatible = "renesas,r9a08g045-wdt", "renesas,rzg2l-wdt"; + reg = <0 0x12800800 0 0x400>; + clocks = <&cpg CPG_MOD R9A08G045_WDT0_PCLK>, + <&cpg CPG_MOD R9A08G045_WDT0_CLK>; + clock-names = "pclk", "oscclk"; + interrupts = , + ; + interrupt-names = "wdt", "perrout"; + resets = <&cpg R9A08G045_WDT0_PRESETN>; + power-domains = <&cpg>; + status = "disabled"; + }; }; timer { From patchwork Mon Jan 22 11:11:15 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 765592 Received: from mail-ed1-f45.google.com (mail-ed1-f45.google.com [209.85.208.45]) (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 EE8744BA9C for ; Mon, 22 Jan 2024 11:11:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.45 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921919; cv=none; b=ju+D5JtABYZEpeGcJf0V8/Nj1UMWsi8r2qeiOhsSp63xcMwGdgOI/r2DMRY7rRUh/2IfMy2WsA7pLRbvYhesH3r2u7yHjp79xpw7wIj+nic34WzGfmFOqImOHjBWSVJqsR1gPpFFMQvWPVqZ0GSpSeArzs6tX8nMcOW101pv9L8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921919; c=relaxed/simple; bh=ifaXXPlzQ7Cc0JIuS3Sr1nJdIEtZglhNMQ0Q1KYtPVQ=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=TbBtH2wAlMpsVzgJEkm/Bf14M3lkmiengjW8ejbvioSEvbLN7UGb+TvNrDEAuembwznrb/tj/NCgj6tgl3XZvXOXcylA7ooTAOPXxzCK7OSvJkYtL4lG1p8qzpAcQ57Tj/903DIrmRHXnxY2egBpc7NZpV2VJF7CJpPc5NggdpY= 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=efZ8CXDA; arc=none smtp.client-ip=209.85.208.45 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="efZ8CXDA" Received: by mail-ed1-f45.google.com with SMTP id 4fb4d7f45d1cf-55a8fd60af0so1865192a12.1 for ; Mon, 22 Jan 2024 03:11:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1705921915; x=1706526715; 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=ZVHTL5RIY+bNimER8/uVEqIPwk3bXfvGHZ/DYHY7974=; b=efZ8CXDAowoAVM6HA9+9w0thUwU1A2Zdw3LGpPKDmRF3HRGK0Ac+aaDzVEW+WxwW0G uiCpKZ6A/8Svl92HuNADCy7qFAwwHOqu134KP/3iSVwDbjrHdNZpcCeOxS+pAIpPghfu CPhJj2g3IR29NP6+KxodcKiJyTnsdRQByT4+oFxRZzYvKnXBCa9s0NfFYrLWb+KuUjNl uzXqdHCzDSDDf/bhtqPIrCZH9TqlzXuv8BwT1QqBUbDUFQyeVjpkonk6II3kDkHR/jrt pGl+TQO+WCxusk+D7+krBRe6a6AYqOeW/E18RWblllUPb2v1K1mbEXHAGnpqbBXE2qfp 0mPw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705921915; x=1706526715; 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=ZVHTL5RIY+bNimER8/uVEqIPwk3bXfvGHZ/DYHY7974=; b=uHrHO5QrDamQ8dY3BMMMAtah/WWkPK0MJTRyRW6cdvx9KTCur8l0StTL4atQM7KJJP T6AP8HDdM1OGVpCManPsZdk9+Y29c4eZ91zlBL/9TQ6Z8Lnv17Wi8pVM6DRQTUN9jtWz SPTasnmc2fuGDBK1DcAqWNpJGoE8rANqiwhR4rQA56ALpwbP8+LUz0myxQan7+w1mIo7 qhoHMi0UUPNCv8HbVvQZZpwSM3QQdxten/kBGYNIs0tKuiQ7SvtXQvfFN0gqQ/vXfcaW vYLCZ/1RgHAgwBowcQAFWRPunJ7pB7JT+heQ7seZI9tPLoRL1pmnLHd7ZnqW3DRN4j1p QmuQ== X-Gm-Message-State: AOJu0YxktDYkTEERVB1Dv9XWEHnc+DMTQb+W8WovfuAM5YsJRfQpcgIF jdxUisYvP/LHfW3z+PoZulgLfI+PmHRxeGIGnXsk/prX/ew6c2irWNZzd3B2j8E= X-Google-Smtp-Source: AGHT+IE0QOOQauPyN7jiBB0wkj3vCQ/E4lksKRkdsglPNnpXOAnRbWLas218nPffKQxKybxy6Cr8AQ== X-Received: by 2002:a50:e614:0:b0:55a:6dc3:59e3 with SMTP id y20-20020a50e614000000b0055a6dc359e3mr939510edm.139.1705921915306; Mon, 22 Jan 2024 03:11:55 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.135]) by smtp.gmail.com with ESMTPSA id t34-20020a056402242200b0055823c2ae17sm14194241eda.64.2024.01.22.03.11.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Jan 2024 03:11:54 -0800 (PST) From: Claudiu X-Google-Original-From: Claudiu To: wim@linux-watchdog.org, linux@roeck-us.net, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, geert+renesas@glider.be, magnus.damm@gmail.com, mturquette@baylibre.com, sboyd@kernel.org, p.zabel@pengutronix.de, 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, linux-clk@vger.kernel.org, claudiu.beznea@tuxon.dev, Claudiu Beznea Subject: [PATCH 10/10] arm64: dts: renesas: rzg3s-smarc-som: Enable the watchdog interface Date: Mon, 22 Jan 2024 13:11:15 +0200 Message-Id: <20240122111115.2861835-11-claudiu.beznea.uj@bp.renesas.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240122111115.2861835-1-claudiu.beznea.uj@bp.renesas.com> References: <20240122111115.2861835-1-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 Enable the watchdog interface (accessible by Cortex-A of RZ/G3S SoC) on RZ/G3S SMARC SoM. Signed-off-by: Claudiu Beznea Reviewed-by: Geert Uytterhoeven --- arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi b/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi index f062d4ad78b7..2b7fa5817d58 100644 --- a/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi +++ b/arch/arm64/boot/dts/renesas/rzg3s-smarc-som.dtsi @@ -336,3 +336,8 @@ mux { }; }; }; + +&wdt0 { + timeout-sec = <60>; + status = "okay"; +};