Allwinner H6 has a different mapping for the fifo register controller.

Actually only the fifo tx flush bit is used.

Add a new quirk to know the correct fifo tx flush bit.

Signed-off-by: Clément Péron <[email protected]>
---
 sound/soc/sunxi/sun4i-spdif.c | 42 ++++++++++++++++++++++++++++++-----
 1 file changed, 36 insertions(+), 6 deletions(-)

diff --git a/sound/soc/sunxi/sun4i-spdif.c b/sound/soc/sunxi/sun4i-spdif.c
index b4af4aabead1..19e4bf9caa24 100644
--- a/sound/soc/sunxi/sun4i-spdif.c
+++ b/sound/soc/sunxi/sun4i-spdif.c
@@ -75,6 +75,18 @@
        #define SUN4I_SPDIF_FCTL_RXOM(v)                ((v) << 0)
        #define SUN4I_SPDIF_FCTL_RXOM_MASK              GENMASK(1, 0)
 
+#define SUN50I_H6_SPDIF_FCTL (0x14)
+       #define SUN50I_H6_SPDIF_FCTL_HUB_EN             BIT(31)
+       #define SUN50I_H6_SPDIF_FCTL_FTX                BIT(30)
+       #define SUN50I_H6_SPDIF_FCTL_FRX                BIT(29)
+       #define SUN50I_H6_SPDIF_FCTL_TXTL(v)            ((v) << 12)
+       #define SUN50I_H6_SPDIF_FCTL_TXTL_MASK          GENMASK(19, 12)
+       #define SUN50I_H6_SPDIF_FCTL_RXTL(v)            ((v) << 4)
+       #define SUN50I_H6_SPDIF_FCTL_RXTL_MASK          GENMASK(10, 4)
+       #define SUN50I_H6_SPDIF_FCTL_TXIM               BIT(2)
+       #define SUN50I_H6_SPDIF_FCTL_RXOM(v)            ((v) << 0)
+       #define SUN50I_H6_SPDIF_FCTL_RXOM_MASK          GENMASK(1, 0)
+
 #define SUN4I_SPDIF_FSTA       (0x18)
        #define SUN4I_SPDIF_FSTA_TXE                    BIT(14)
        #define SUN4I_SPDIF_FSTA_TXECNTSHT              (8)
@@ -169,16 +181,25 @@ struct sun4i_spdif_dev {
        struct snd_soc_dai_driver cpu_dai_drv;
        struct regmap *regmap;
        struct snd_dmaengine_dai_dma_data dma_params_tx;
+       const struct sun4i_spdif_quirks *quirks;
+};
+
+struct sun4i_spdif_quirks {
+       unsigned int reg_dac_txdata;    /* TX FIFO offset for DMA config */
+       unsigned int reg_fctl_ftx;      /* TX FIFO flush bitmask */
+       bool has_reset;
 };
 
 static void sun4i_spdif_configure(struct sun4i_spdif_dev *host)
 {
+       const struct sun4i_spdif_quirks *quirks = host->quirks;
+
        /* soft reset SPDIF */
        regmap_write(host->regmap, SUN4I_SPDIF_CTL, SUN4I_SPDIF_CTL_RESET);
 
        /* flush TX FIFO */
        regmap_update_bits(host->regmap, SUN4I_SPDIF_FCTL,
-                          SUN4I_SPDIF_FCTL_FTX, SUN4I_SPDIF_FCTL_FTX);
+                          quirks->reg_fctl_ftx, quirks->reg_fctl_ftx);
 
        /* clear TX counter */
        regmap_write(host->regmap, SUN4I_SPDIF_TXCNT, 0);
@@ -405,22 +426,26 @@ static struct snd_soc_dai_driver sun4i_spdif_dai = {
        .name = "spdif",
 };
 
-struct sun4i_spdif_quirks {
-       unsigned int reg_dac_txdata;    /* TX FIFO offset for DMA config */
-       bool has_reset;
-};
-
 static const struct sun4i_spdif_quirks sun4i_a10_spdif_quirks = {
        .reg_dac_txdata = SUN4I_SPDIF_TXFIFO,
+       .reg_fctl_ftx   = SUN4I_SPDIF_FCTL_FTX,
 };
 
 static const struct sun4i_spdif_quirks sun6i_a31_spdif_quirks = {
        .reg_dac_txdata = SUN4I_SPDIF_TXFIFO,
+       .reg_fctl_ftx   = SUN4I_SPDIF_FCTL_FTX,
        .has_reset      = true,
 };
 
 static const struct sun4i_spdif_quirks sun8i_h3_spdif_quirks = {
        .reg_dac_txdata = SUN8I_SPDIF_TXFIFO,
+       .reg_fctl_ftx   = SUN4I_SPDIF_FCTL_FTX,
+       .has_reset      = true,
+};
+
+static const struct sun4i_spdif_quirks sun50i_h6_spdif_quirks = {
+       .reg_dac_txdata = SUN8I_SPDIF_TXFIFO,
+       .reg_fctl_ftx   = SUN50I_H6_SPDIF_FCTL_FTX,
        .has_reset      = true,
 };
 
@@ -437,6 +462,10 @@ static const struct of_device_id sun4i_spdif_of_match[] = {
                .compatible = "allwinner,sun8i-h3-spdif",
                .data = &sun8i_h3_spdif_quirks,
        },
+       {
+               .compatible = "allwinner,sun50i-h6-spdif",
+               .data = &sun50i_h6_spdif_quirks,
+       },
        { /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, sun4i_spdif_of_match);
@@ -501,6 +530,7 @@ static int sun4i_spdif_probe(struct platform_device *pdev)
                dev_err(&pdev->dev, "Failed to determine the quirks to use\n");
                return -ENODEV;
        }
+       host->quirks = quirks;
 
        host->regmap = devm_regmap_init_mmio(&pdev->dev, base,
                                                &sun4i_spdif_regmap_config);
-- 
2.17.1

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