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Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Alim Akhtar , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , linux-pm@vger.kernel.org (open list:SAMSUNG THERMAL DRIVER), linux-samsung-soc@vger.kernel.org (open list:SAMSUNG THERMAL DRIVER), linux-arm-kernel@lists.infradead.org (moderated list:ARM/SAMSUNG S3C, S5P AND EXYNOS ARM ARCHITECTURES), linux-kernel@vger.kernel.org (open list), llvm@lists.linux.dev (open list:CLANG/LLVM BUILD SUPPORT:Keyword:\b(?i:clang|llvm)\b) Cc: Anand Moon Subject: [PATCH v6 2/4] thermal/drivers/exynos: Use devm_clk_get_enabled() helpers Date: Wed, 30 Apr 2025 18:02:58 +0530 Message-ID: <20250430123306.15072-3-linux.amoon@gmail.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250430123306.15072-1-linux.amoon@gmail.com> References: <20250430123306.15072-1-linux.amoon@gmail.com> Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Use devm_clk_get_enabled() helper instead of calling devm_clk_get() and then clk_prepare_enable(). It simplifies the error handling and makes the code more compact. Suggested-by: Daniel Lezcano Signed-off-by: Anand Moon --- v6: New patch as per Daniel request. --- drivers/thermal/samsung/exynos_tmu.c | 77 ++++++++-------------------- 1 file changed, 20 insertions(+), 57 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 04517d52afbd..aa0726b33c84 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -1036,65 +1036,41 @@ static int exynos_tmu_probe(struct platform_device *pdev) if (ret) return ret; - data->clk = devm_clk_get(dev, "tmu_apbif"); + data->clk = devm_clk_get_enabled(dev, "tmu_apbif"); if (IS_ERR(data->clk)) - return dev_err_probe(dev, PTR_ERR(data->clk), "Failed to get clock\n"); - - ret = clk_prepare(data->clk); - if (ret) { - dev_err(dev, "Failed to get clock\n"); - return ret; - } - - switch (data->soc) { - case SOC_ARCH_EXYNOS5420_TRIMINFO: - data->clk_sec = devm_clk_get(dev, "tmu_triminfo_apbif"); - if (IS_ERR(data->clk_sec)) { - ret = dev_err_probe(dev, PTR_ERR(data->clk_sec), - "Failed to get clk_sec clock\n"); - goto err_clk; - } - ret = clk_prepare(data->clk_sec); - if (ret) { - dev_err(dev, "Failed to prepare clk_sec clock\n"); - goto err_clk_sec; - } - break; - case SOC_ARCH_EXYNOS5433: - case SOC_ARCH_EXYNOS7: - data->sclk = devm_clk_get(dev, "tmu_sclk"); - if (IS_ERR(data->sclk)) { - ret = dev_err_probe(dev, PTR_ERR(data->sclk), "Failed to get sclk\n"); - goto err_clk; - } else { - ret = clk_prepare_enable(data->sclk); - if (ret) { - dev_err(dev, "Failed to enable sclk\n"); - goto err_clk; - } - } - break; - default: - break; + return dev_err_probe(dev, PTR_ERR(data->clk), + "Failed to get clock\n"); + + if (data->soc == SOC_ARCH_EXYNOS5420_TRIMINFO) { + data->clk_sec = devm_clk_get_enabled(dev, "tmu_triminfo_apbif"); + if (IS_ERR(data->clk_sec)) + return dev_err_probe(dev, PTR_ERR(data->clk_sec), + "Failed to get clk_sec clock\n"); + } else if (data->soc == SOC_ARCH_EXYNOS5433 || + data->soc == SOC_ARCH_EXYNOS7) { + data->sclk = devm_clk_get_enabled(dev, "tmu_sclk"); + if (IS_ERR(data->sclk)) + return dev_err_probe(dev, PTR_ERR(data->sclk), + "Failed to get sclk\n"); } ret = exynos_tmu_initialize(pdev); if (ret) { dev_err(dev, "Failed to initialize TMU\n"); - goto err_sclk; + return ret; } data->tzd = devm_thermal_of_zone_register(dev, 0, data, &exynos_sensor_ops); if (IS_ERR(data->tzd)) { - ret = dev_err_probe(dev, PTR_ERR(data->tzd), "Failed to register sensor\n"); - goto err_sclk; + return dev_err_probe(dev, PTR_ERR(data->tzd), + "Failed to register sensor\n"); } ret = exynos_thermal_zone_configure(pdev); if (ret) { dev_err(dev, "Failed to configure the thermal zone\n"); - goto err_sclk; + return ret; } ret = devm_request_threaded_irq(dev, data->irq, NULL, @@ -1104,30 +1080,17 @@ static int exynos_tmu_probe(struct platform_device *pdev) dev_name(dev), data); if (ret) { dev_err(dev, "Failed to request irq: %d\n", data->irq); - goto err_sclk; + return ret; } exynos_tmu_control(pdev, true); - return 0; -err_sclk: - clk_disable_unprepare(data->sclk); -err_clk_sec: - clk_unprepare(data->clk_sec); -err_clk: - clk_unprepare(data->clk); return ret; } static void exynos_tmu_remove(struct platform_device *pdev) { - struct exynos_tmu_data *data = platform_get_drvdata(pdev); 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Wed, 30 Apr 2025 05:33:52 -0700 (PDT) Received: from localhost.localdomain ([110.44.101.8]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-74039a62e23sm1522627b3a.147.2025.04.30.05.33.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 30 Apr 2025 05:33:52 -0700 (PDT) From: Anand Moon To: Bartlomiej Zolnierkiewicz , Krzysztof Kozlowski , "Rafael J. Wysocki" , Daniel Lezcano , Zhang Rui , Lukasz Luba , Alim Akhtar , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , linux-pm@vger.kernel.org (open list:SAMSUNG THERMAL DRIVER), linux-samsung-soc@vger.kernel.org (open list:SAMSUNG THERMAL DRIVER), linux-arm-kernel@lists.infradead.org (moderated list:ARM/SAMSUNG S3C, S5P AND EXYNOS ARM ARCHITECTURES), linux-kernel@vger.kernel.org (open list), llvm@lists.linux.dev (open list:CLANG/LLVM BUILD SUPPORT:Keyword:\b(?i:clang|llvm)\b) Cc: Anand Moon Subject: [PATCH v6 4/4] thermal/drivers/exynos: Fixed the efuse min max value for exynos5422 Date: Wed, 30 Apr 2025 18:03:00 +0530 Message-ID: <20250430123306.15072-5-linux.amoon@gmail.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250430123306.15072-1-linux.amoon@gmail.com> References: <20250430123306.15072-1-linux.amoon@gmail.com> Precedence: bulk X-Mailing-List: linux-samsung-soc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 As per Exynos5422 user manual e-Fuse range min~max range is 16~76. if e-Fuse value is out of this range, then thermal sensor may not sense thermal data properly. Refactors the efuse value initialization logic within exynos_map_dt_data function by replacing the nested if-else statements with a switch statement. Ensures proper initialization of efuse values based on the SOC type. Reviewed-by: Lukasz Luba Signed-off-by: Anand Moon --- v6: Add Rb Lukasz and fix typo in subject v5: None V4: None --- drivers/thermal/samsung/exynos_tmu.c | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 5f017a78f437..ef216aac13ee 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -899,12 +899,23 @@ static int exynos_map_dt_data(struct platform_device *pdev) data->gain = 8; data->reference_voltage = 16; data->efuse_value = 55; - if (data->soc != SOC_ARCH_EXYNOS5420 && - data->soc != SOC_ARCH_EXYNOS5420_TRIMINFO) + data->max_efuse_value = 100; + switch (data->soc) { + case SOC_ARCH_EXYNOS3250: + case SOC_ARCH_EXYNOS4412: + case SOC_ARCH_EXYNOS5250: + case SOC_ARCH_EXYNOS5260: data->min_efuse_value = 40; - else + break; + case SOC_ARCH_EXYNOS5420: + case SOC_ARCH_EXYNOS5420_TRIMINFO: + data->min_efuse_value = 16; + data->max_efuse_value = 76; + break; + default: data->min_efuse_value = 0; - data->max_efuse_value = 100; + break; + } break; case SOC_ARCH_EXYNOS5433: data->tmu_set_low_temp = exynos5433_tmu_set_low_temp;