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 DA5AD285412; Mon, 5 May 2025 22:15:39 +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=1746483340; cv=none; b=iEeZ5IyIwBGt0d5ZTR0hfblVGqPBOkg59EfPcyG68YW9QUGur/LpNwtGYvjmpEeILeHoli/1zw9Wz+BTOoZbVbvHX7lz0oV5+5KVYzjc/iuZzJYmKqE52CjeMGgCJqT3ZfRB1mPXHac+IIGr3Em9mXY2o5+x3jr+GUUnOlrQKc4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746483340; c=relaxed/simple; bh=XGuv68T7aVBqmN9aFUmsC0uDVOK4ein5VyoTAEl3hjg=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=MvywNVLzA6AoWggYJD5QOsELtZPCRX+kiKzwDBpFzQdRglDp1PQd57WqWYo9TqUZF+7OYBk3KUF1SU0aBlTuOap0kf6xk5xmFA2cnJHnCkwSJWmQSccwOH+Nltul07w9mFt+RqEnQ+b3+XzV3pWtMQMKnu39gaeEuvg+KcggAIU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Zqj5z6X+; 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="Zqj5z6X+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D034AC4CEEF; Mon, 5 May 2025 22:15:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746483339; bh=XGuv68T7aVBqmN9aFUmsC0uDVOK4ein5VyoTAEl3hjg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Zqj5z6X+ub5evepEY9foshTKYuQFeaLC3NpqWyo11JdXQkqX5E28YfrzOWNlPUPVC ot7+MJY5ghCr0u4RV3fSkkXVEGhyiaSDFFHM/+JH6QqnrfYlOxX7zF4T2e6OZrhYEB GxvYaT5+9p8KAUPFW5U+EoRXpzohs7rmvfSzxsnWGyIQ3ZI4oLc4uHnIjxKW10cbgJ 90sxDGO5BQHQxVcUYbkoGG6jvTAjq/fsmhDF9RodzJvLn92FN4bbwfVNkpGbJkZkhd TQNoMozeOiTpCFkvhbCOsiBa4PL/x5KAB1TB+ytpgl79pfzuIkb6VsbQ/sXm4aCiEU dcKguqBmYH3DA== 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 6.14 042/642] thermal/drivers/qoriq: Power down TMU on system suspend Date: Mon, 5 May 2025 18:04:18 -0400 Message-Id: <20250505221419.2672473-42-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250505221419.2672473-1-sashal@kernel.org> References: <20250505221419.2672473-1-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 6.14.5 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 52e26be8c53df..aed2729f63d06 100644 --- a/drivers/thermal/qoriq_thermal.c +++ b/drivers/thermal/qoriq_thermal.c @@ -18,6 +18,7 @@ #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 @@ -356,6 +357,12 @@ static int 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; @@ -370,6 +377,12 @@ static int 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