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([103.51.72.28]) by smtp.gmail.com with ESMTPSA id g24-20020a170902d5d800b0015e8d4eb2e3sm4568687plh.301.2022.05.14.23.42.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 14 May 2022 23:42:43 -0700 (PDT) From: Anand Moon To: Bartlomiej Zolnierkiewicz , Krzysztof Kozlowski , "Rafael J. Wysocki" , Daniel Lezcano , Amit Kucheria , Zhang Rui , Alim Akhtar , linux-pm@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Anand Moon Subject: [PATCHv2 6/6] thermal: exynos: Add runtime power management for tmu Date: Sun, 15 May 2022 06:41:23 +0000 Message-Id: <20220515064126.1424-7-linux.amoon@gmail.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20220515064126.1424-1-linux.amoon@gmail.com> References: <20220515064126.1424-1-linux.amoon@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Add runtime power management for exynos thermal driver. Cc: Bartlomiej Zolnierkiewicz Signed-off-by: Anand Moon --- v1: new patch in this series. --- drivers/thermal/samsung/exynos_tmu.c | 29 ++++++++++++++++++++++++++-- 1 file changed, 27 insertions(+), 2 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index f8a527f19383..be9b98caf2ba 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -20,6 +20,7 @@ #include #include #include +#include #include @@ -1106,6 +1107,15 @@ static int exynos_tmu_probe(struct platform_device *pdev) goto err_thermal; } + pm_runtime_set_active(&pdev->dev); + pm_runtime_set_autosuspend_delay(&pdev->dev, 1000); + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_enable(&pdev->dev); + + ret = pm_runtime_resume_and_get(&pdev->dev); + if (ret < 0) + goto disable_runtime_pm; + ret = devm_request_irq(&pdev->dev, data->irq, exynos_tmu_irq, IRQF_TRIGGER_RISING | IRQF_SHARED, dev_name(&pdev->dev), data); if (ret) { @@ -1113,11 +1123,16 @@ static int exynos_tmu_probe(struct platform_device *pdev) goto err_thermal; } + pm_runtime_put(&pdev->dev); + exynos_tmu_control(pdev, true); return 0; err_thermal: thermal_zone_of_sensor_unregister(&pdev->dev, data->tzd); +disable_runtime_pm: + pm_runtime_put_noidle(&pdev->dev); + pm_runtime_disable(&pdev->dev); err_clk_sec: clk_disable_unprepare(data->clk_sec); err_sclk: @@ -1143,6 +1158,9 @@ static int exynos_tmu_remove(struct platform_device *pdev) clk_disable_unprepare(data->clk); clk_disable_unprepare(data->clk_sec); + pm_runtime_put_noidle(&pdev->dev); + pm_runtime_disable(&pdev->dev); + if (!IS_ERR(data->regulator)) regulator_disable(data->regulator); @@ -1151,18 +1169,25 @@ static int exynos_tmu_remove(struct platform_device *pdev) static int __maybe_unused exynos_tmu_suspend(struct device *dev) { - exynos_tmu_control(to_platform_device(dev), false); + struct platform_device *pdev = to_platform_device(dev); - return 0; + exynos_tmu_control(pdev, false); + + return pm_runtime_force_suspend(&pdev->dev); } static int __maybe_unused exynos_tmu_resume(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); + int ret; exynos_tmu_initialize(pdev); exynos_tmu_control(pdev, true); + ret = pm_runtime_force_resume(&pdev->dev); + if (ret) + return ret; + return 0; }