IIO: ADC: stm32_dfsdm_stop_filter() can be static

Fixes: e2e6771c6462 ("IIO: ADC: add STM32 DFSDM sigma delta ADC support")
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c
index b03ca3f..e628d04 100644 (file)
--- a/drivers/iio/adc/stm32-dfsdm-adc.c
+++ b/drivers/iio/adc/stm32-dfsdm-adc.c
@@ -254,7 +254,7 @@ static int stm32_dfsdm_start_filter(struct stm32_dfsdm *dfsdm,
                                  DFSDM_CR1_RSWSTART(1));
 }
 
-void stm32_dfsdm_stop_filter(struct stm32_dfsdm *dfsdm, unsigned int fl_id)
+static void stm32_dfsdm_stop_filter(struct stm32_dfsdm *dfsdm, unsigned int fl_id)
 {
        /* Disable conversion */
        regmap_update_bits(dfsdm->regmap, DFSDM_CR1(fl_id),
@@ -296,9 +296,9 @@ static int stm32_dfsdm_filter_configure(struct stm32_dfsdm *dfsdm,
                                  DFSDM_CR1_RSYNC(fl->sync_mode));
 }
 
-int stm32_dfsdm_channel_parse_of(struct stm32_dfsdm *dfsdm,
-                                struct iio_dev *indio_dev,
-                                struct iio_chan_spec *ch)
+static int stm32_dfsdm_channel_parse_of(struct stm32_dfsdm *dfsdm,
+                                       struct iio_dev *indio_dev,
+                                       struct iio_chan_spec *ch)
 {
        struct stm32_dfsdm_channel *df_ch;
        const char *of_str;