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Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , linux-pm@vger.kernel.org (open list:THERMAL), linux-kernel@vger.kernel.org (open list) Cc: imx@lists.linux.dev Subject: [PATCH v2 2/2] thermal/drivers/qoriq: Power down TMU on system suspend Date: Mon, 9 Dec 2024 11:48:59 -0500 Message-Id: <20241209164859.3758906-2-Frank.Li@nxp.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241209164859.3758906-1-Frank.Li@nxp.com> References: <20241209164859.3758906-1-Frank.Li@nxp.com> X-ClientProxiedBy: SJ0PR05CA0100.namprd05.prod.outlook.com (2603:10b6:a03:334::15) To PAXPR04MB9642.eurprd04.prod.outlook.com (2603:10a6:102:240::14) Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: PAXPR04MB9642:EE_|GVXPR04MB10022:EE_ X-MS-Office365-Filtering-Correlation-Id: c5a8a512-42ca-4960-5b09-08dd18716c33 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Save approximately 4.3mW on VDD_ANA_1P8 on i.MX93 platforms. Signed-off-by: Alice Guo Signed-off-by: Frank Li --- change from v1 to v2 - none --- 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 183af15c33769..01b58be0dcc64 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 @@ -342,6 +343,12 @@ 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; @@ -356,6 +363,12 @@ 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); }