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| author |   Fabio Estevam <festevam@gmail.com> | 2019-06-03 16:34:31 -0300 |
|---|---|---|
| committer |   Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-06-17 21:06:44 +0100 |
| commit | 9ce92da84ff2eec3792edabbc3d3a654f2e2842a (patch) | |
| tree | 3ea7879a8b6f077b0ae812d63f147f0cb15f17c9 /drivers/iio | |
| parent | iio: imx7d_adc: Remove unneeded error message (diff) | |
| download | linux-dev-9ce92da84ff2eec3792edabbc3d3a654f2e2842a.tar.xz linux-dev-9ce92da84ff2eec3792edabbc3d3a654f2e2842a.zip | |
iio: imx7d_adc: Introduce a definition for the input clock
Since the input clock is always 24MHz, there is no need for storing
this value into a variable.
Use a definition instead, which is more appropriate in this case.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/adc/imx7d_adc.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/iio/adc/imx7d_adc.c b/drivers/iio/adc/imx7d_adc.c index 3327994fce3a..d77840718bc6 100644 --- a/drivers/iio/adc/imx7d_adc.c +++ b/drivers/iio/adc/imx7d_adc.c @@ -82,6 +82,7 @@ #define IMX7D_REG_ADC_INT_STATUS_CHANNEL_CONV_TIME_OUT 0xf0000 #define IMX7D_ADC_TIMEOUT msecs_to_jiffies(100) +#define IMX7D_ADC_INPUT_CLK 24000000 enum imx7d_adc_clk_pre_div { IMX7D_ADC_ANALOG_CLK_PRE_DIV_4, @@ -276,13 +277,11 @@ static void imx7d_adc_channel_set(struct imx7d_adc *info) static u32 imx7d_adc_get_sample_rate(struct imx7d_adc *info) { - /* input clock is always 24MHz */ - u32 input_clk = 24000000; u32 analogue_core_clk; u32 core_time_unit = info->adc_feature.core_time_unit; u32 tmp; - analogue_core_clk = input_clk / info->pre_div_num; + analogue_core_clk = IMX7D_ADC_INPUT_CLK / info->pre_div_num; tmp = (core_time_unit + 1) * 6; return analogue_core_clk / tmp; |