AD4130_MCLK_FREQ_76_8KHZ
#define AD4130_RESET_SLEEP_US (160 * MICRO / AD4130_MCLK_FREQ_76_8KHZ)
u32 ext_clk_freq = AD4130_MCLK_FREQ_76_8KHZ;
ext_clk_freq != AD4130_MCLK_FREQ_76_8KHZ)
return AD4130_MCLK_FREQ_76_8KHZ;
unsigned long rate = AD4130_MCLK_FREQ_76_8KHZ;