iio: adc: ad4630: Max sampling frequency set to 2MSPS

The default MSPS for AD4630 is wrongly define, also the 500KSPS
chips seems not to have proper sampling frequency defined

For now, set the sample frequency to 2MSPS by default for some
tests in hardware

Signed-off-by: Liviu Adace <liviu.adace@analog.com>

Author: ladace

drivers/iio/adc/ad4630.c

@@ -1322,11 +1322,7 @@ static int ad4630_config(struct ad4630_state *st)
 	if (ret)
 		return ret;
 
-	if (lane_mode == AD4630_ONE_LANE_PER_CH && data_rate &&
-	    st->chip->modes[st->out_data].data_width == 32)
-		st->max_rate = AD4630_MAX_RATE_1_LANE;
-	else
-		st->max_rate = AD4630_MAX_RATE;
+	st->max_rate = AD4630_MAX_RATE;
 
 	ad4630_prepare_spi_sampling_msg(st, clock_mode, lane_mode, data_rate);