iio: adc: sc27xx_adc: Re-use generic struct u32_fract

Instead of a pair of u32 re-use generic struct u32_fract.
No functional changes intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Cixi Geng <cixi.geng1@unisoc.com>
Link: https://lore.kernel.org/r/20220530180910.2533-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/sc27xx_adc.c b/drivers/iio/adc/sc27xx_adc.c
index e9ff2d6..f8421cb 100644 (file)
--- a/drivers/iio/adc/sc27xx_adc.c
+++ b/drivers/iio/adc/sc27xx_adc.c
@@ -579,15 +579,14 @@ unlock_adc:
        return ret;
 }
 
-static void sc27xx_adc_volt_ratio(struct sc27xx_adc_data *data,
-                                 int channel, int scale,
-                                 u32 *div_numerator, u32 *div_denominator)
+static void sc27xx_adc_volt_ratio(struct sc27xx_adc_data *data, int channel, int scale,
+                                 struct u32_fract *fract)
 {
        u32 ratio;
 
        ratio = data->var_data->get_ratio(channel, scale);
-       *div_numerator = ratio >> SC27XX_RATIO_NUMERATOR_OFFSET;
-       *div_denominator = ratio & SC27XX_RATIO_DENOMINATOR_MASK;
+       fract->numerator = ratio >> SC27XX_RATIO_NUMERATOR_OFFSET;
+       fract->denominator = ratio & SC27XX_RATIO_DENOMINATOR_MASK;
 }
 
 static int adc_to_volt(struct sc27xx_adc_linear_graph *graph,
@@ -615,7 +614,7 @@ static int sc27xx_adc_to_volt(struct sc27xx_adc_linear_graph *graph,
 static int sc27xx_adc_convert_volt(struct sc27xx_adc_data *data, int channel,
                                   int scale, int raw_adc)
 {
-       u32 numerator, denominator;
+       struct u32_fract fract;
        u32 volt;
 
        /*
@@ -637,9 +636,9 @@ static int sc27xx_adc_convert_volt(struct sc27xx_adc_data *data, int channel,
                break;
        }
 
-       sc27xx_adc_volt_ratio(data, channel, scale, &numerator, &denominator);
+       sc27xx_adc_volt_ratio(data, channel, scale, &fract);
 
-       return DIV_ROUND_CLOSEST(volt * denominator, numerator);
+       return DIV_ROUND_CLOSEST(volt * fract.denominator, fract.numerator);
 }
 
 static int sc27xx_adc_read_processed(struct sc27xx_adc_data *data,