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authorRosen Penev <rosenp@gmail.com>2026-03-03 20:17:16 -0800
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2026-03-14 12:10:21 +0000
commitd6f2eac6440329d8c1d981b907b9ecd325ee3d2f (patch)
tree83b4a3d1f3d400e62b040ab3b4b53b353ab76d5a
parent8d8613036491f1057b1eeca4e4b2c41d8d465a63 (diff)
iio: adc: meson: no devm for nvmem_cell_get
There is no reason to extend the lifetime of this post removal of the driver when it's only needed in one spot. Moved tsc_regmap assignment to avoid two nvmem_cell_put calls. Signed-off-by: Rosen Penev <rosenp@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
-rw-r--r--drivers/iio/adc/meson_saradc.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/iio/adc/meson_saradc.c b/drivers/iio/adc/meson_saradc.c
index 47cd350498a0..ed91edf0e391 100644
--- a/drivers/iio/adc/meson_saradc.c
+++ b/drivers/iio/adc/meson_saradc.c
@@ -792,7 +792,7 @@ static int meson_sar_adc_temp_sensor_init(struct iio_dev *indio_dev)
size_t read_len;
int ret;
- temperature_calib = devm_nvmem_cell_get(dev, "temperature_calib");
+ temperature_calib = nvmem_cell_get(dev, "temperature_calib");
if (IS_ERR(temperature_calib)) {
ret = PTR_ERR(temperature_calib);
@@ -806,13 +806,9 @@ static int meson_sar_adc_temp_sensor_init(struct iio_dev *indio_dev)
return dev_err_probe(dev, ret, "failed to get temperature_calib cell\n");
}
- priv->tsc_regmap = syscon_regmap_lookup_by_phandle(dev->of_node, "amlogic,hhi-sysctrl");
- if (IS_ERR(priv->tsc_regmap))
- return dev_err_probe(dev, PTR_ERR(priv->tsc_regmap),
- "failed to get amlogic,hhi-sysctrl regmap\n");
-
read_len = MESON_SAR_ADC_EFUSE_BYTES;
buf = nvmem_cell_read(temperature_calib, &read_len);
+ nvmem_cell_put(temperature_calib);
if (IS_ERR(buf))
return dev_err_probe(dev, PTR_ERR(buf), "failed to read temperature_calib cell\n");
if (read_len != MESON_SAR_ADC_EFUSE_BYTES) {
@@ -820,6 +816,11 @@ static int meson_sar_adc_temp_sensor_init(struct iio_dev *indio_dev)
return dev_err_probe(dev, -EINVAL, "invalid read size of temperature_calib cell\n");
}
+ priv->tsc_regmap = syscon_regmap_lookup_by_phandle(dev->of_node, "amlogic,hhi-sysctrl");
+ if (IS_ERR(priv->tsc_regmap))
+ return dev_err_probe(dev, PTR_ERR(priv->tsc_regmap),
+ "failed to get amlogic,hhi-sysctrl regmap\n");
+
trimming_bits = priv->param->temperature_trimming_bits;
trimming_mask = BIT(trimming_bits) - 1;