ASoC: sun4i-i2s: Add TX FIFO offset to quirks

It has been seen that the newer SoCs have a different TX FIFO
address. Add this to the quirks structure.
Signed-off-by: Marcus Cooper <codekipper@gmail.com>
Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sunxi/sun4i-i2s.c

@@ -94,12 +94,14 @@
  * struct sun4i_i2s_quirks - Differences between SoC variants.
  *
  * @has_reset: SoC needs reset deasserted.
+ * @reg_offset_txdata: offset of the tx fifo.
  * @sun4i_i2s_regmap: regmap config to use.
  * @mclk_offset: Value by which mclkdiv needs to be adjusted.
  * @bclk_offset: Value by which bclkdiv needs to be adjusted.
  */
 struct sun4i_i2s_quirks {
 	bool				has_reset;
+	unsigned int			reg_offset_txdata;	/* TX FIFO */
 	const struct regmap_config	*sun4i_i2s_regmap;
 	unsigned int			mclk_offset;
 	unsigned int			bclk_offset;
@@ -677,11 +679,13 @@ static int sun4i_i2s_runtime_suspend(struct device *dev)
 
 static const struct sun4i_i2s_quirks sun4i_a10_i2s_quirks = {
 	.has_reset		= false,
+	.reg_offset_txdata	= SUN4I_I2S_FIFO_TX_REG,
 	.sun4i_i2s_regmap	= &sun4i_i2s_regmap_config,
 };
 
 static const struct sun4i_i2s_quirks sun6i_a31_i2s_quirks = {
 	.has_reset		= true,
+	.reg_offset_txdata	= SUN4I_I2S_FIFO_TX_REG,
 	.sun4i_i2s_regmap	= &sun4i_i2s_regmap_config,
 };
 
@@ -750,7 +754,8 @@ static int sun4i_i2s_probe(struct platform_device *pdev)
 		}
 	}
 
-	i2s->playback_dma_data.addr = res->start + SUN4I_I2S_FIFO_TX_REG;
+	i2s->playback_dma_data.addr = res->start +
+					i2s->variant->reg_offset_txdata;
 	i2s->playback_dma_data.maxburst = 8;
 
 	i2s->capture_dma_data.addr = res->start + SUN4I_I2S_FIFO_RX_REG;