From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 632C52F2C4B; Mon, 5 May 2025 23:13:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746486828; cv=none; b=OF8BqMIDToxjUq2Xvsx8qYGzidVz77rqxxmDoUwsOdIq7mnRz69fwlg03DBXys2whb2tHfh3v3uTr4haqOnH70EdPD+yHNN58BemGzHKLDqSl7fwvghEAXIg+RUgTWG+rs4sjNGRAXVP+ZzNGdp2ZKYZmgPArnjSsuh3xXVGe6I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746486828; c=relaxed/simple; bh=Qp0IIlHYIciNX7Eip4u3/xx/27fVip6CeUOfHnBhWHI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=JoGcoKbsziAsnE4FkUJl1p/jXXYnUVOlkxJFKsA40fBWWTHQjh4ljsO4diGncpSUgYRYzbeLNqUR1f6qmxa2pzQuFV3K9Uu14A5NHyxiMAn5gpI4ALFjUtaI+Jq09Cjt6pQyFO6e9FcRV8hhYzIy+cO7q9RDpHwp2EGRhf+9o3w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DFoWVUga; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="DFoWVUga" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 62524C4CEED; Mon, 5 May 2025 23:13:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746486827; bh=Qp0IIlHYIciNX7Eip4u3/xx/27fVip6CeUOfHnBhWHI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DFoWVUgagd3J1decoEdLXA741GO/Jlt4pp67O1tkJqGJ8vyGNfP7FwI07WCi/9hZE rKj9qHBCHThFFOutprWpr+kEIjFWzTNLg+TxH8vDFnyEDmWWUMWsa7/rCukcreXX1Y XeQSsugw9H94fjsY3EQYASdXr4EfAFtEI2y1DrzBDXOzbX/M9Ao7CjOZS3O/fnNwJ+ vCwJYo06b3rf/44aek+DHbkk8lFAZCj8byQF69AlG5Jd+tEqY0d+m5+JTdIBfjV2uK g1+udmx+W4/2djTJijY7DQqUnzrxieGV9m/Y0iaSBYLGc6SWFGc8V6vqh9SfYVIvh6 DLdE/WeI8pltw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Alice Guo , Frank Li , Daniel Lezcano , Sasha Levin , rafael@kernel.org, linux-pm@vger.kernel.org Subject: [PATCH AUTOSEL 5.15 011/153] thermal/drivers/qoriq: Power down TMU on system suspend Date: Mon, 5 May 2025 19:10:58 -0400 Message-Id: <20250505231320.2695319-11-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250505231320.2695319-1-sashal@kernel.org> References: <20250505231320.2695319-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-stable-base: Linux 5.15.181 Content-Transfer-Encoding: 8bit From: Alice Guo [ Upstream commit 229f3feb4b0442835b27d519679168bea2de96c2 ] Enable power-down of TMU (Thermal Management Unit) for TMU version 2 during system suspend to save power. Save approximately 4.3mW on VDD_ANA_1P8 on i.MX93 platforms. Signed-off-by: Alice Guo Signed-off-by: Frank Li Link: https://lore.kernel.org/r/20241209164859.3758906-2-Frank.Li@nxp.com Signed-off-by: Daniel Lezcano Signed-off-by: Sasha Levin --- drivers/thermal/qoriq_thermal.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/thermal/qoriq_thermal.c b/drivers/thermal/qoriq_thermal.c index 73049f9bea252..34a5fbcc3d200 100644 --- a/drivers/thermal/qoriq_thermal.c +++ b/drivers/thermal/qoriq_thermal.c @@ -19,6 +19,7 @@ #define SITES_MAX 16 #define TMR_DISABLE 0x0 #define TMR_ME 0x80000000 +#define TMR_CMD BIT(29) #define TMR_ALPF 0x0c000000 #define TMR_ALPF_V2 0x03000000 #define TMTMIR_DEFAULT 0x0000000f @@ -345,6 +346,12 @@ static int __maybe_unused qoriq_tmu_suspend(struct device *dev) if (ret) return ret; + if (data->ver > TMU_VER1) { + ret = regmap_set_bits(data->regmap, REGS_TMR, TMR_CMD); + if (ret) + return ret; + } + clk_disable_unprepare(data->clk); return 0; @@ -359,6 +366,12 @@ static int __maybe_unused qoriq_tmu_resume(struct device *dev) if (ret) return ret; + if (data->ver > TMU_VER1) { + ret = regmap_clear_bits(data->regmap, REGS_TMR, TMR_CMD); + if (ret) + return ret; + } + /* Enable monitoring */ return regmap_update_bits(data->regmap, REGS_TMR, TMR_ME, TMR_ME); } -- 2.39.5