diff options
| author | Xingyu Wu <xingyu.wu@starfivetech.com> | 2023-10-17 12:22:52 +0300 |
|---|---|---|
| committer | Hal Feng <hal.feng@starfivetech.com> | 2024-03-05 10:18:27 +0300 |
| commit | 2fef0872da3893e4646d19245fd4463c8128b078 (patch) | |
| tree | 7656eeb1f5f7a5c6ad6438a3133d9836145e414a | |
| parent | 29ebe44f04a92b477aa25a473c1a95788e4eb98c (diff) | |
| download | linux-2fef0872da3893e4646d19245fd4463c8128b078.tar.xz | |
ASoC: dwc: i2s: Add RX master support for StarFive JH7110 SoC
Add JH7110 I2S RX master support, so the PDM can work on JH7110
EVB board.
Signed-off-by: Xingyu Wu <xingyu.wu@starfivetech.com>
Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
| -rwxr-xr-x[-rw-r--r--] | sound/soc/dwc/dwc-i2s.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/sound/soc/dwc/dwc-i2s.c b/sound/soc/dwc/dwc-i2s.c index a25ffe50d5c1..d349841280d6 100644..100755 --- a/sound/soc/dwc/dwc-i2s.c +++ b/sound/soc/dwc/dwc-i2s.c @@ -906,6 +906,27 @@ static int jh7110_i2srx_crg_init(struct dw_i2s_dev *dev) return jh7110_i2s_crg_slave_init(dev); } +/* Special syscon initialization about RX channel with master mode on JH7110 SoC */ +static int jh7110_i2srx_mst_crg_init(struct dw_i2s_dev *dev) +{ + struct regmap *regmap; + unsigned int args[5]; + + regmap = syscon_regmap_lookup_by_phandle_args(dev->dev->of_node, + "starfive,syscon", + 5, args); + if (IS_ERR(regmap)) + return dev_err_probe(dev->dev, PTR_ERR(regmap), "getting the regmap failed\n"); + + /* Enable I2Srx with syscon register, args[0]: offset, args[1]: mask */ + regmap_update_bits(regmap, args[0], args[1], args[1]); + + /* Change I2Srx source (PDM) with syscon register, args[0]: offset, args[1]: mask */ + regmap_update_bits(regmap, args[2], args[3], args[4]); + + return jh7110_i2s_crg_master_init(dev); +} + static int jh7110_i2stx0_clk_cfg(struct i2s_clk_config_data *config) { struct dw_i2s_dev *dev = container_of(config, struct dw_i2s_dev, config); @@ -1086,11 +1107,21 @@ static const struct i2s_platform_data jh7110_i2srx_data = { .i2s_pd_init = jh7110_i2srx_crg_init, }; +static const struct i2s_platform_data jh7110_i2srx_mst_data = { + .cap = DWC_I2S_RECORD | DW_I2S_MASTER, + .channel = TWO_CHANNEL_SUPPORT, + .snd_fmts = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE, + .snd_rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | SNDRV_PCM_RATE_16000, + .i2s_clk_cfg = jh7110_i2stx0_clk_cfg, + .i2s_pd_init = jh7110_i2srx_mst_crg_init, +}; + static const struct of_device_id dw_i2s_of_match[] = { { .compatible = "snps,designware-i2s", }, { .compatible = "starfive,jh7110-i2stx0", .data = &jh7110_i2stx0_data, }, { .compatible = "starfive,jh7110-i2stx1", .data = &jh7110_i2stx1_data,}, { .compatible = "starfive,jh7110-i2srx", .data = &jh7110_i2srx_data,}, + { .compatible = "starfive,jh7110-i2srx-master", .data = &jh7110_i2srx_mst_data,}, {}, }; |