From 9ce92da84ff2eec3792edabbc3d3a654f2e2842a Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 3 Jun 2019 16:34:31 -0300 Subject: 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 Signed-off-by: Jonathan Cameron --- drivers/iio/adc/imx7d_adc.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers/iio') 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; -- cgit v1.2.3-59-g8ed1b