ASoC: fsl_xcvr: get channel status data when PHY is not exists

There is no PHY for the XCVR module on i.MX93, the channel status needs
to be obtained from FSL_XCVR_RX_CS_DATA_* registers. And channel status
acknowledge (CSA) bit should be set once channel status is processed.

Fixes: e240b93 ("ASoC: fsl_xcvr: Add support for i.MX93 platform")
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://patch.msgid.link/20250710030405.3370671-2-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: TE-N-ShengjiuWang

sound/soc/fsl/fsl_xcvr.c

@@ -1423,6 +1423,26 @@ static irqreturn_t irq0_isr(int irq, void *devid)
 				/* clear CS control register */
 				memset_io(reg_ctrl, 0, sizeof(val));
 			}
+		} else {
+			regmap_read(xcvr->regmap, FSL_XCVR_RX_CS_DATA_0,
+				    (u32 *)&xcvr->rx_iec958.status[0]);
+			regmap_read(xcvr->regmap, FSL_XCVR_RX_CS_DATA_1,
+				    (u32 *)&xcvr->rx_iec958.status[4]);
+			regmap_read(xcvr->regmap, FSL_XCVR_RX_CS_DATA_2,
+				    (u32 *)&xcvr->rx_iec958.status[8]);
+			regmap_read(xcvr->regmap, FSL_XCVR_RX_CS_DATA_3,
+				    (u32 *)&xcvr->rx_iec958.status[12]);
+			regmap_read(xcvr->regmap, FSL_XCVR_RX_CS_DATA_4,
+				    (u32 *)&xcvr->rx_iec958.status[16]);
+			regmap_read(xcvr->regmap, FSL_XCVR_RX_CS_DATA_5,
+				    (u32 *)&xcvr->rx_iec958.status[20]);
+			for (i = 0; i < 6; i++) {
+				val = *(u32 *)(xcvr->rx_iec958.status + i * 4);
+				*(u32 *)(xcvr->rx_iec958.status + i * 4) =
+					bitrev32(val);
+			}
+			regmap_set_bits(xcvr->regmap, FSL_XCVR_RX_DPTH_CTRL,
+					FSL_XCVR_RX_DPTH_CTRL_CSA);
 		}
 	}
 	if (isr & FSL_XCVR_IRQ_NEW_UD) {