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 8D13C279792; Mon, 5 May 2025 23:18:43 +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=1746487124; cv=none; b=oF8X/qB8a82yzuAyizbIOPcWYQ63bltP3aXEGlZxh9cJpeMOBEQNxytv3ShFftCwJ+dZbtyXTUvktSSdC3u5vS4qgv5UF0ZakNQSr8sACnPjpoSzcyFarGHjhEVU77hPlgh7u+u8uXyIc2I9YB93FxV05rODRE//2yEcpZxgv08= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746487124; c=relaxed/simple; bh=Qp0IIlHYIciNX7Eip4u3/xx/27fVip6CeUOfHnBhWHI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=SZ71gSd/VWAzcB8UkSZyIJaLD5CglLgHCSwckHq+aszA0J65GvrAb0XqceM+BP2XpWwpbpuhqDSZTLudb8ldOMwu8h2llErBN9rBHROhCXuU3HjR83Ib+3nDFTvKA+rEMiRRMrxQ3kYdlTAPZWt4Pdp7tqVkn0iGxwczEYRrAlI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=nmVzxG2h; 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="nmVzxG2h" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 2AA44C4CEE4; Mon, 5 May 2025 23:18:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746487123; bh=Qp0IIlHYIciNX7Eip4u3/xx/27fVip6CeUOfHnBhWHI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nmVzxG2hzoYRQZDdKFVl4wVEG9c0eQ4LNlzahiUJZzx5FgO7e7f0Dp32zIOQoYIuy kzgV34Ppg/EY7Upy6o6bG1Epwhu3YpY9QhrRmu8H/jsUjDr7ofk4Fdiw/xrkvF5FpZ DKbzBqPokw6ZrhvJtIU0oIW5h6PWeDgwqpeDhXkQyiu+qZcTK2gzf9lFWCWrIrbIz7 g/kb//+QC8E3yuE30Vzc9x+nLF+XeJyOdjQ8vLoc6Av2T0Y3pgqe027HW7VNMuHIcG zAitstkU+wXUfe72DIdWgECdLY9MQzD0SDpFhBWo73qbN3+rrIOEp6+ur/EvMXPeAL ZEjr+vkzeltbg== 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 5.10 010/114] thermal/drivers/qoriq: Power down TMU on system suspend Date: Mon, 5 May 2025 19:16:33 -0400 Message-Id: <20250505231817.2697367-10-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250505231817.2697367-1-sashal@kernel.org> References: <20250505231817.2697367-1-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 5.10.237 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