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thermal/drivers/exynos: Simplify regulator (de)initialization

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We rewrite the initialization to enable the regulator as part of devm,
which allows us to not handle the struct instance manually.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Mateusz Majewski <m.majewski2@samsung.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link:
https://lore.kernel.org/r/20231201095625.301884-6-m.majewski2@samsung.com
This commit is contained in:
Mateusz Majewski 2023-12-01 10:56:21 +01:00 committed by Daniel Lezcano
parent 52ef6f567e
commit 5d6976d014
1 changed files with 15 additions and 34 deletions
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49
drivers/thermal/samsung/exynos_tmu.c
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@ -157,7 +157,6 @@ enum soc_type {
* @reference_voltage: reference voltage of amplifier
* in the positive-TC generator block
* 0 < reference_voltage <= 31
* @regulator: pointer to the TMU regulator structure.
* @tzd: pointer to thermal_zone_device structure
* @ntrip: number of supported trip points.
* @enabled: current status of TMU device
@ -183,7 +182,6 @@ struct exynos_tmu_data {
u16 temp_error1, temp_error2;
u8 gain;
u8 reference_voltage;
struct regulator *regulator;
struct thermal_zone_device *tzd;
unsigned int ntrip;
bool enabled;
@ -994,50 +992,40 @@ static int exynos_tmu_probe(struct platform_device *pdev)
* TODO: Add regulator as an SOC feature, so that regulator enable
* is a compulsory call.
*/
data->regulator = devm_regulator_get_optional(&pdev->dev, "vtmu");
if (!IS_ERR(data->regulator)) {
ret = regulator_enable(data->regulator);
if (ret) {
dev_err(&pdev->dev, "failed to enable vtmu\n");
return ret;
}
} else {
ret = PTR_ERR(data->regulator);
switch (ret) {
case -ENODEV:
break;
case -EPROBE_DEFER:
return -EPROBE_DEFER;
default:
dev_err(&pdev->dev, "Failed to get regulator: %d\n",
ret);
return ret;
}
ret = devm_regulator_get_enable_optional(&pdev->dev, "vtmu");
switch (ret) {
case 0:
case -ENODEV:
break;
case -EPROBE_DEFER:
return -EPROBE_DEFER;
default:
dev_err(&pdev->dev, "Failed to get enabled regulator: %d\n",
ret);
return ret;
}
ret = exynos_map_dt_data(pdev);
if (ret)
goto err_sensor;
return ret;
data->clk = devm_clk_get(&pdev->dev, "tmu_apbif");
if (IS_ERR(data->clk)) {
dev_err(&pdev->dev, "Failed to get clock\n");
ret = PTR_ERR(data->clk);
goto err_sensor;
return PTR_ERR(data->clk);
}
data->clk_sec = devm_clk_get(&pdev->dev, "tmu_triminfo_apbif");
if (IS_ERR(data->clk_sec)) {
if (data->soc == SOC_ARCH_EXYNOS5420_TRIMINFO) {
dev_err(&pdev->dev, "Failed to get triminfo clock\n");
ret = PTR_ERR(data->clk_sec);
goto err_sensor;
return PTR_ERR(data->clk_sec);
}
} else {
ret = clk_prepare(data->clk_sec);
if (ret) {
dev_err(&pdev->dev, "Failed to get clock\n");
goto err_sensor;
return ret;
}
}
@ -1107,10 +1095,6 @@ err_clk:
err_clk_sec:
if (!IS_ERR(data->clk_sec))
clk_unprepare(data->clk_sec);
err_sensor:
if (!IS_ERR(data->regulator))
regulator_disable(data->regulator);
return ret;
}
@ -1124,9 +1108,6 @@ static void exynos_tmu_remove(struct platform_device *pdev)
clk_unprepare(data->clk);
if (!IS_ERR(data->clk_sec))
clk_unprepare(data->clk_sec);
if (!IS_ERR(data->regulator))
regulator_disable(data->regulator);
}
#ifdef CONFIG_PM_SLEEP