There are some new registers added on i.MX8ULP, they are the SPDIF transmit Professional C channel registers, 192bit SPDIF receive C channel registers, and 192bit SPDIF transmit C channel registers.
There are two output lines, SPDIF_OUT1 and SPDIF_OUT2, the original REG_SPDIF_STCSCH and REG_SPDIF_STCSCL are used for SPDIF_OUT1, the new REG_SPDIF_STCSPH and REG_SPDIF_STCSPL are used for SPDIF_OUT2, the 192bit SPDIF C channel registers are used for both.
Signed-off-by: Shengjiu Wang shengjiu.wang@nxp.com --- sound/soc/fsl/fsl_spdif.c | 52 ++++++++++++++++++++++++++++++++++++++- sound/soc/fsl/fsl_spdif.h | 14 +++++++++++ 2 files changed, 65 insertions(+), 1 deletion(-)
diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c index b502e7c3c04d..42d11aca38a1 100644 --- a/sound/soc/fsl/fsl_spdif.c +++ b/sound/soc/fsl/fsl_spdif.c @@ -50,6 +50,7 @@ static u8 srpc_dpll_locked[] = { 0x0, 0x1, 0x2, 0x3, 0x4, 0xa, 0xb }; * @shared_root_clock: flag of sharing a clock source with others; * so the driver shouldn't set root clock rate * @raw_capture_mode: if raw capture mode support + * @cchannel_192b: if there are registers for 192bits C channel data * @interrupts: interrupt number * @tx_burst: tx maxburst size * @rx_burst: rx maxburst size @@ -59,6 +60,7 @@ struct fsl_spdif_soc_data { bool imx; bool shared_root_clock; bool raw_capture_mode; + bool cchannel_192b; u32 interrupts; u32 tx_burst; u32 rx_burst; @@ -196,6 +198,7 @@ static struct fsl_spdif_soc_data fsl_spdif_imx8ulp = { .tx_burst = 2, /* Applied for EDMA */ .rx_burst = 2, /* Applied for EDMA */ .tx_formats = SNDRV_PCM_FMTBIT_S24_LE, /* Applied for EDMA */ + .cchannel_192b = true, };
/* Check if clk is a root clock that does not share clock source with others */ @@ -441,6 +444,23 @@ static void spdif_write_channel_status(struct fsl_spdif_priv *spdif_priv) regmap_write(regmap, REG_SPDIF_STCSCL, ch_status);
dev_dbg(&pdev->dev, "STCSCL: 0x%06x\n", ch_status); + + if (spdif_priv->soc->cchannel_192b) { + ch_status = (bitrev8(ctrl->ch_status[0]) << 24) | + (bitrev8(ctrl->ch_status[1]) << 16) | + (bitrev8(ctrl->ch_status[2]) << 8) | + bitrev8(ctrl->ch_status[3]); + + regmap_update_bits(regmap, REG_SPDIF_SCR, 0x1000000, 0x1000000); + + /* + * The first 32bit should be in REG_SPDIF_STCCA_31_0 register, + * but here we need to set REG_SPDIF_STCCA_191_160 on 8ULP + * then can get correct result with HDMI analyzer capture. + * There is a hardware bug here. + */ + regmap_write(regmap, REG_SPDIF_STCCA_191_160, ch_status); + } }
/* Set SPDIF PhaseConfig register for rx clock */ @@ -1229,6 +1249,8 @@ static const struct reg_default fsl_spdif_reg_defaults[] = { {REG_SPDIF_STR, 0x00000000}, {REG_SPDIF_STCSCH, 0x00000000}, {REG_SPDIF_STCSCL, 0x00000000}, + {REG_SPDIF_STCSPH, 0x00000000}, + {REG_SPDIF_STCSPL, 0x00000000}, {REG_SPDIF_STC, 0x00020f00}, };
@@ -1248,8 +1270,22 @@ static bool fsl_spdif_readable_reg(struct device *dev, unsigned int reg) case REG_SPDIF_SRQ: case REG_SPDIF_STCSCH: case REG_SPDIF_STCSCL: + case REG_SPDIF_STCSPH: + case REG_SPDIF_STCSPL: case REG_SPDIF_SRFM: case REG_SPDIF_STC: + case REG_SPDIF_SRCCA_31_0: + case REG_SPDIF_SRCCA_63_32: + case REG_SPDIF_SRCCA_95_64: + case REG_SPDIF_SRCCA_127_96: + case REG_SPDIF_SRCCA_159_128: + case REG_SPDIF_SRCCA_191_160: + case REG_SPDIF_STCCA_31_0: + case REG_SPDIF_STCCA_63_32: + case REG_SPDIF_STCCA_95_64: + case REG_SPDIF_STCCA_127_96: + case REG_SPDIF_STCCA_159_128: + case REG_SPDIF_STCCA_191_160: return true; default: return false; @@ -1268,6 +1304,12 @@ static bool fsl_spdif_volatile_reg(struct device *dev, unsigned int reg) case REG_SPDIF_SRU: case REG_SPDIF_SRQ: case REG_SPDIF_SRFM: + case REG_SPDIF_SRCCA_31_0: + case REG_SPDIF_SRCCA_63_32: + case REG_SPDIF_SRCCA_95_64: + case REG_SPDIF_SRCCA_127_96: + case REG_SPDIF_SRCCA_159_128: + case REG_SPDIF_SRCCA_191_160: return true; default: return false; @@ -1286,7 +1328,15 @@ static bool fsl_spdif_writeable_reg(struct device *dev, unsigned int reg) case REG_SPDIF_STR: case REG_SPDIF_STCSCH: case REG_SPDIF_STCSCL: + case REG_SPDIF_STCSPH: + case REG_SPDIF_STCSPL: case REG_SPDIF_STC: + case REG_SPDIF_STCCA_31_0: + case REG_SPDIF_STCCA_63_32: + case REG_SPDIF_STCCA_95_64: + case REG_SPDIF_STCCA_127_96: + case REG_SPDIF_STCCA_159_128: + case REG_SPDIF_STCCA_191_160: return true; default: return false; @@ -1298,7 +1348,7 @@ static const struct regmap_config fsl_spdif_regmap_config = { .reg_stride = 4, .val_bits = 32,
- .max_register = REG_SPDIF_STC, + .max_register = REG_SPDIF_STCCA_191_160, .reg_defaults = fsl_spdif_reg_defaults, .num_reg_defaults = ARRAY_SIZE(fsl_spdif_reg_defaults), .readable_reg = fsl_spdif_readable_reg, diff --git a/sound/soc/fsl/fsl_spdif.h b/sound/soc/fsl/fsl_spdif.h index bff8290e71f2..75b42a692c90 100644 --- a/sound/soc/fsl/fsl_spdif.h +++ b/sound/soc/fsl/fsl_spdif.h @@ -31,9 +31,23 @@ #define REG_SPDIF_STR 0x30 /* SPDIFTxRight Register */ #define REG_SPDIF_STCSCH 0x34 /* SPDIFTxCChannelCons_h Register */ #define REG_SPDIF_STCSCL 0x38 /* SPDIFTxCChannelCons_l Register */ +#define REG_SPDIF_STCSPH 0x3C /* SPDIFTxCChannel_Prof_h Register */ +#define REG_SPDIF_STCSPL 0x40 /* SPDIFTxCChannel_Prof_l Register */ #define REG_SPDIF_SRFM 0x44 /* FreqMeas Register */ #define REG_SPDIF_STC 0x50 /* SPDIFTxClk Register */
+#define REG_SPDIF_SRCCA_31_0 0x60 /* SPDIF receive C channel register, bits 31-0 */ +#define REG_SPDIF_SRCCA_63_32 0x64 /* SPDIF receive C channel register, bits 63-32 */ +#define REG_SPDIF_SRCCA_95_64 0x68 /* SPDIF receive C channel register, bits 95-64 */ +#define REG_SPDIF_SRCCA_127_96 0x6C /* SPDIF receive C channel register, bits 127-96 */ +#define REG_SPDIF_SRCCA_159_128 0x70 /* SPDIF receive C channel register, bits 159-128 */ +#define REG_SPDIF_SRCCA_191_160 0x74 /* SPDIF receive C channel register, bits 191-160 */ +#define REG_SPDIF_STCCA_31_0 0x78 /* SPDIF transmit C channel register, bits 31-0 */ +#define REG_SPDIF_STCCA_63_32 0x7C /* SPDIF transmit C channel register, bits 63-32 */ +#define REG_SPDIF_STCCA_95_64 0x80 /* SPDIF transmit C channel register, bits 95-64 */ +#define REG_SPDIF_STCCA_127_96 0x84 /* SPDIF transmit C channel register, bits 127-96 */ +#define REG_SPDIF_STCCA_159_128 0x88 /* SPDIF transmit C channel register, bits 159-128 */ +#define REG_SPDIF_STCCA_191_160 0x8C /* SPDIF transmit C channel register, bits 191-160 */
/* SPDIF Configuration register */ #define SCR_RXFIFO_CTL_OFFSET 23