On Wed, Aug 14, 2019 at 08:08:42AM +0200, codekipper@gmail.com wrote:

+	if (i2s->variant->has_fmt_set_lrck_period)
+		bclk_div = sun4i_i2s_get_bclk_div(i2s, clk_rate / rate,
+						  word_size,
+						  sun8i_i2s_clk_div,
+						  ARRAY_SIZE(sun8i_i2s_clk_div));
+	else
+		bclk_div = sun4i_i2s_get_bclk_div(i2s, oversample_rate,
+						  word_size,
+						  sun4i_i2s_bclk_div,
+						  ARRAY_SIZE(sun4i_i2s_bclk_div));

Are we sure there'll never be any new variants which would make a switch
statement for the variant work better?