ASoC: sun4i-spdif: Add support for the H3 SoC

The H3 SoC uses the same SPDIF block as found in earlier SoCs, but its
TXFIFO is mapped to another address.
Signed-off-by: NMarcus Cooper <codekipper@gmail.com>
Acked-by: NMaxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

sound/soc/sunxi/sun4i-spdif.c

@@ -103,6 +103,8 @@
 	#define SUN4I_SPDIF_ISTA_RXOSTA			BIT(1)
 	#define SUN4I_SPDIF_ISTA_RXASTA			BIT(0)
 
+#define SUN8I_SPDIF_TXFIFO	(0x20)
+
 #define SUN4I_SPDIF_TXCNT	(0x24)
 
 #define SUN4I_SPDIF_RXCNT	(0x28)
@@ -417,6 +419,11 @@ static const struct sun4i_spdif_quirks sun6i_a31_spdif_quirks = {
 	.has_reset	= true,
 };
 
+static const struct sun4i_spdif_quirks sun8i_h3_spdif_quirks = {
+	.reg_dac_txdata	= SUN8I_SPDIF_TXFIFO,
+	.has_reset	= true,
+};
+
 static const struct of_device_id sun4i_spdif_of_match[] = {
 	{
 		.compatible = "allwinner,sun4i-a10-spdif",
@@ -426,6 +433,10 @@ static const struct of_device_id sun4i_spdif_of_match[] = {
 		.compatible = "allwinner,sun6i-a31-spdif",
 		.data = &sun6i_a31_spdif_quirks,
 	},
+	{
+		.compatible = "allwinner,sun8i-h3-spdif",
+		.data = &sun8i_h3_spdif_quirks,
+	},
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, sun4i_spdif_of_match);