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 1313B36E08B; Mon, 5 May 2025 22:57:26 +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=1746485848; cv=none; b=tj9sIuenph2Jm2eMdWBEt/5Xz9LT3CP1NUwM61YPtURyLSOJtlK3SV9inLcF29sUjb3Tbf9KhVvnEOBNGbpjTtxKZF8WyMkcVAV7PyTy9dR/mziCa5ER+V3FpgEZ4839li5389ngOAQu/spEWmrK+LdeWX5zl3lbm0JObWEgutE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1746485848; c=relaxed/simple; bh=gAz+aUFuLUPxRXt58pKLDYqHkb8l7aAmg0L0zi/3UnM=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=s2GCkdlORtqkX9eS2RPvV7IY1dr9605YoZEtfzLpX6ikKcwPHK7yQGOFa3+ioAc3HCTWuABCGGX37lW50CtwrW6zmpVJSRv7iKQ5YqkNSmIBAUxhwzOndPRMzK9jN07JqY7dTHqj210SwS+OG0VYVgFSKk67g8xP5xtTEm5iAfM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=g7QBW3+T; 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="g7QBW3+T" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9ECC4C4CEF2; Mon, 5 May 2025 22:57:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1746485846; bh=gAz+aUFuLUPxRXt58pKLDYqHkb8l7aAmg0L0zi/3UnM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=g7QBW3+TwTZMUqHW/c8gGyuKfbb6YZtyGvMEvIp3KUJ+89nLo2bAm4KcqtvPSoE4V nEwJucXccWEi3uONuOTg2M/SnxrSfKaBvAObHmFTK1BJ0WftUyG9Kw7Yo4tIT45EZF p/XiOMYHgzxN5QVg6O4Q5BCBdZkNA601fzPcRavBe+LR1DWTuLRu7yeUa6fcUp9HOF b53u1LhL/gs86ORUraJdosmw2CRPc/G92ojjw+haRBn+yIGlGYN5pSPjJgzHMyt5ft MZmha5RrsOzxd39oi7iy+NkHpqKf9EoemBB+FouNS4lHIJdc/5EPKlld4ChJmVflIm IKpZGdWzp34fQ== 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 6.6 026/294] thermal/drivers/qoriq: Power down TMU on system suspend Date: Mon, 5 May 2025 18:52:06 -0400 Message-Id: <20250505225634.2688578-26-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250505225634.2688578-1-sashal@kernel.org> References: <20250505225634.2688578-1-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 6.6.89 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 404f01cca4dab..ff8657afb31d3 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 __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; @@ -370,6 +377,12 @@ 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