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ASoC: sun4i-spdif: Add TX fifo bit flush quirks
Allwinner H6 has a different bit to flush the TX FIFO. Add a quirks to prepare introduction of H6 SoC. Signed-off-by: Clément Péron <peron.clem@gmail.com> Acked-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Mark Brown <broonie@kernel.org>
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1 changed files with 10 additions and 1 deletions
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@ -166,10 +166,12 @@
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*
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* @reg_dac_tx_data: TX FIFO offset for DMA config.
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* @has_reset: SoC needs reset deasserted.
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* @val_fctl_ftx: TX FIFO flush bitmask.
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*/
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struct sun4i_spdif_quirks {
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unsigned int reg_dac_txdata;
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bool has_reset;
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unsigned int val_fctl_ftx;
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};
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struct sun4i_spdif_dev {
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@ -180,16 +182,19 @@ struct sun4i_spdif_dev {
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struct snd_soc_dai_driver cpu_dai_drv;
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struct regmap *regmap;
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struct snd_dmaengine_dai_dma_data dma_params_tx;
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const struct sun4i_spdif_quirks *quirks;
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};
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static void sun4i_spdif_configure(struct sun4i_spdif_dev *host)
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{
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const struct sun4i_spdif_quirks *quirks = host->quirks;
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/* soft reset SPDIF */
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regmap_write(host->regmap, SUN4I_SPDIF_CTL, SUN4I_SPDIF_CTL_RESET);
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/* flush TX FIFO */
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regmap_update_bits(host->regmap, SUN4I_SPDIF_FCTL,
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SUN4I_SPDIF_FCTL_FTX, SUN4I_SPDIF_FCTL_FTX);
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quirks->val_fctl_ftx, quirks->val_fctl_ftx);
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/* clear TX counter */
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regmap_write(host->regmap, SUN4I_SPDIF_TXCNT, 0);
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@ -418,15 +423,18 @@ static struct snd_soc_dai_driver sun4i_spdif_dai = {
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static const struct sun4i_spdif_quirks sun4i_a10_spdif_quirks = {
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.reg_dac_txdata = SUN4I_SPDIF_TXFIFO,
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.val_fctl_ftx = SUN4I_SPDIF_FCTL_FTX,
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};
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static const struct sun4i_spdif_quirks sun6i_a31_spdif_quirks = {
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.reg_dac_txdata = SUN4I_SPDIF_TXFIFO,
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.val_fctl_ftx = SUN4I_SPDIF_FCTL_FTX,
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.has_reset = true,
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};
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static const struct sun4i_spdif_quirks sun8i_h3_spdif_quirks = {
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.reg_dac_txdata = SUN8I_SPDIF_TXFIFO,
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.val_fctl_ftx = SUN4I_SPDIF_FCTL_FTX,
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.has_reset = true,
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};
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@ -507,6 +515,7 @@ static int sun4i_spdif_probe(struct platform_device *pdev)
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dev_err(&pdev->dev, "Failed to determine the quirks to use\n");
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return -ENODEV;
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}
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host->quirks = quirks;
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host->regmap = devm_regmap_init_mmio(&pdev->dev, base,
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&sun4i_spdif_regmap_config);
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