CLK_I2S_BASE
ret = clk_set_rate(i2s->clk[CLK_I2S_BASE], 49152000);
i2s->clk[CLK_I2S_BASE] = devm_clk_get(dev, "i2s-base");
if (IS_ERR(i2s->clk[CLK_I2S_BASE]))
return PTR_ERR(i2s->clk[CLK_I2S_BASE]);