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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: devicetree@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 --- 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 11:11:08 2024 Content-Type: text/plain; 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([82.78.167.135]) by smtp.gmail.com with ESMTPSA id t34-20020a056402242200b0055823c2ae17sm14194241eda.64.2024.01.22.03.11.42 (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: devicetree@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 11:11:10 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 764787 Received: from mail-ed1-f48.google.com (mail-ed1-f48.google.com [209.85.208.48]) (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 A52D53EA98 for ; Mon, 22 Jan 2024 11:11:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.48 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921910; cv=none; b=gpVyAwDmBighe29MhR0iUCKMakbH5Mn9sK05gkwhhd0RhX2rXPLZ6/BEm73eKs0EvFw5EWzzrlWdhS14iB82pe+ghMRQGcklWZ5aMx298JkTbEgSsEWVTE80MeH82cYZycSv1AecQomxFPFqSihe3N7lXkAiBsE4UhIGM2TD70w= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921910; c=relaxed/simple; bh=NCms0ZLKEiS45wOrj0dlqugM1ADv/GfHrMYyZSUMCAU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=F9nsSWO+PWYSR4DBF+ScHnDQnzB7FkcyEv0YHUErj0u6NDca1z2Kkz+6zorjq4qppMNFUq9YneBM1ur4gUDgPep2YfWp7O3iONQuspk+5wqYVBPN0rjUPx/AdamGXib11nw8Lj3R5UO0prMiiWh6EsPyAl3lvkfyJBSMuR/TIXM= 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=nijsCHoc; arc=none smtp.client-ip=209.85.208.48 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="nijsCHoc" Received: by mail-ed1-f48.google.com with SMTP id 4fb4d7f45d1cf-559edcee47eso2505103a12.0 for ; Mon, 22 Jan 2024 03:11:48 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1705921907; x=1706526707; 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=TiQV2ILDyfuhRtQ7ScYQPUgegRvmagL9x54ZH9Lb49w=; b=nijsCHocPE5ZB9iHmVfCjfjAxCX7AeGKT+ddW4PwI+x7M7q/T271ujTfXC60gi8jjW mmuUFm/sVZrx0rO10EXAmi6eXGIR0F771uutfiLeR5uFBiPMvJiDd6maM95dWGRk27XV 5nfBElckZqn+/p1ALOuAUHFjOIyFvXeN/TYqatT3Y720oZ1IzaOYz0uiTvMdQBJhrC7T l0TsYVJEZev4uE0dhHb6ZQagKu1Qo92n44N9HeNKTbatdYrk2HwcV4LuQsBL6BEoQIV+ dcB8gsOb6a9Nu07OzCUqtW3NdKQssCc3a2BYo6COGGrgUQ+YkYcr+eOaAcgWDTVQMvEU 8nIg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705921907; x=1706526707; 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=TiQV2ILDyfuhRtQ7ScYQPUgegRvmagL9x54ZH9Lb49w=; b=LPgqY015Y+n7TlFhYy/SZItHpW2Ih8MPmiJZFUKMVNp1LveBMHtNq0vHUYp/WfeK6/ nqqBG3C6p7k64VuNr/zOgMuocTkPEG3e3HDeshCKo/l8cimSwKag2fU0i47PdomFR9z7 XHeGOX+3yHPn11GXmwskb9uhLOIY5gr8dUG81ma8jrfTLwWy2kIKrKt4Fg7AMbjfeaiB 4Oo7EbLEXNkTpRr5LvQR6+gqktS5M/unIVl/kfc/27mW5MBlfp6OUkC1gvdVqwtZqOm9 KXjcGt6oYKuRW75RpvfOeys9gc5Q2GAMYjBHqvPeMsfp9sG+O21V/YD7UHckCq0bXylP THJQ== X-Gm-Message-State: AOJu0Ywqd5ynLnR6WZ+7veRTLrMMMsd2skwp6Rq6hSapZxfWRQ02xKUb QZ8pW4MU2Sxg8HuligE/FMzDKK0iDTKVv58VKjHcRX0MrSzLomHrzwuqMAtlxWs= X-Google-Smtp-Source: AGHT+IEBQpSALgWgMpCRVaKQUN2PBkdeQxBdKtyArpj9r4N9gi82Rg0Lat8sieGJ7DxgQhY15mQeGg== X-Received: by 2002:a05:6402:4302:b0:55c:4b7:cbe with SMTP id m2-20020a056402430200b0055c04b70cbemr1637215edc.16.1705921906857; Mon, 22 Jan 2024 03:11:46 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.135]) by smtp.gmail.com with ESMTPSA id t34-20020a056402242200b0055823c2ae17sm14194241eda.64.2024.01.22.03.11.45 (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: devicetree@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 11:11:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 764786 Received: from mail-ed1-f48.google.com (mail-ed1-f48.google.com [209.85.208.48]) (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 366E34A9AE for ; Mon, 22 Jan 2024 11:11:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.48 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921914; cv=none; b=A+A6A34XafdmgLrCdM6kah7tm1xnyvzHelFaZKeyzuU97kq9A2Oc1Py7z3djG7bNVWp1LvWJkri4iUqZRIsSxdJMymiuJfXk8i/GewX6u0h8iFNulR1kCvnM33whxONAcE8fazqAr+izSsLXit8L5Aex5v3TwHzXdS7nBqXzaqI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1705921914; c=relaxed/simple; bh=QSHrqKvBFITUcBnX8YOoV4xwGvo/LUKyPfUJqWIie9Q=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=MMiNoxBzjgIpCdEdvKC8DNoUGdGZJs2+WXmEVm0RyqmqwwxTwGYy/6Tk8zREE/Vwq4BeIbMcyP1i2xmWmuEpPTXuZQArQm6Qsb6r5iExU+As5RykgrZRwkC8oAqlHukNf8fhybbCPUzHmjKIG9KbRsahyPak0N33issRjwv+F4o= 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=HFjfxles; arc=none smtp.client-ip=209.85.208.48 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="HFjfxles" Received: by mail-ed1-f48.google.com with SMTP id 4fb4d7f45d1cf-55a539d205aso3175800a12.3 for ; Mon, 22 Jan 2024 03:11:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tuxon.dev; s=google; t=1705921910; x=1706526710; 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=wEA5wOjREvccnNUzxu9B12Stn4mw/QPURiJXd8LQ/aM=; b=HFjfxlesQLWw2eazjzzCx0ZUeYlZkaX9e6bPqKbFPVp09D8LiB6fiInRs94zGNY4gN 265+waRwh8HjkazjHLBGdhrcLWu18bk3oVdf+mgov4heHbFbvsTYhUfRfeghGLkkn9Ia r2iFcILXmuZ0QD9odPGBsXFdH3tRIp+9tNikCI6QH1Ascm+DvgfmJhZ3gpVnMwhrK7FV iHlOdftnB+UWuaED82lAco3jnqujLk09a5Xgh2CC8GcmBeEnClEzk9ehSqVtSZaLL7/U VrPMHSib/NbLA6q73tbghDAhk8XAej8GwA47/ab4/vTUnKgtFtjODKu0FTkxAaizMHnU WriQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705921910; x=1706526710; 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=wEA5wOjREvccnNUzxu9B12Stn4mw/QPURiJXd8LQ/aM=; b=LY3BAZnkxVjEIqJ1tvucQSd133pFvb6xCuya+QWgss6RwQlXQiuTdiiUmMGQGl4hpg l5FSDS4zyybSoPLVc/RydcMr0S/Hr48yCrUZW1c+pzif/9IvOJ7066EXG7mreJhcyEwr mlg60Hw3KqaEJLz3UVaJMm8Z3kCpGk9+pRy9jr+9hGIQdxpZwHrLaPo2WqJcqOmjfpbv L5cKX1OwZ7jRHLMF62EcjCqx9nIkdXsvU2QF/bp5zRuy6kKH4hg8gcvJiGxonRsd/GJ+ Yhe7rTGezy8F27x3c4IcbyxYKAQelsUYSzigdAiQBw+V/et1yxG6RLBDVwEuH+Mab2GQ iKOQ== X-Gm-Message-State: AOJu0YyO0WlQs+KgRUxdJEPCXNP9A7h8oROvSlPJQFRVgYzBd3uJYdxb /Ssw8gLiMIlcoABTkGm6bLGzVRippalLMPdXijvj1dFbmgnE7hqKlHBbXF0IlWI= X-Google-Smtp-Source: AGHT+IGw7I6s3NPiyW22Qvw7VVWkxhXCAzTHINh94nQfxWrT31yIhB4pL/X+FC/j64bGD1gBP9c7LA== X-Received: by 2002:a50:d5c9:0:b0:55a:5fad:6c7c with SMTP id g9-20020a50d5c9000000b0055a5fad6c7cmr2300051edj.50.1705921910408; Mon, 22 Jan 2024 03:11:50 -0800 (PST) Received: from claudiu-X670E-Pro-RS.. ([82.78.167.135]) by smtp.gmail.com with ESMTPSA id t34-20020a056402242200b0055823c2ae17sm14194241eda.64.2024.01.22.03.11.48 (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: devicetree@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 11:11:14 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Claudiu Beznea X-Patchwork-Id: 764785 Received: from mail-ed1-f48.google.com (mail-ed1-f48.google.com [209.85.208.48]) (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 67F464BA81 for ; Mon, 22 Jan 2024 11:11:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.48 ARC-Seal: i=1; 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([82.78.167.135]) by smtp.gmail.com with ESMTPSA id t34-20020a056402242200b0055823c2ae17sm14194241eda.64.2024.01.22.03.11.52 (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: devicetree@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 {