linux-kernel - [PATCH 2/2] ASoC: fsl_xcvr: get channel status data with firmware exists

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Message-Id: <20250710030405.3370671-3-shengjiu.wang@nxp.com>
Date: Thu, 10 Jul 2025 11:04:05 +0800
From: Shengjiu Wang <shengjiu.wang@....com>
To: shengjiu.wang@...il.com,
	Xiubo.Lee@...il.com,
	festevam@...il.com,
	nicoleotsuka@...il.com,
	lgirdwood@...il.com,
	broonie@...nel.org,
	perex@...ex.cz,
	tiwai@...e.com,
	linux-sound@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] ASoC: fsl_xcvr: get channel status data with firmware exists

For the XCVR module on i.MX95, even though it only supports SPDIF, the
channel status needs to be obtained from RAM space, which is processed
by firmware. Firmware is necessary to trigger the FSL_XCVR_IRQ_NEW_CS
interrupt.

This change also applies for the SPDIF & ARC function on i.MX8MP which
has the firmware.

Fixes: e6a9750a346b ("ASoC: fsl_xcvr: Add suspend and resume support")
Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
 sound/soc/fsl/fsl_xcvr.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/soc/fsl/fsl_xcvr.c b/sound/soc/fsl/fsl_xcvr.c
index 405433144515..5d804860f7d8 100644
--- a/sound/soc/fsl/fsl_xcvr.c
+++ b/sound/soc/fsl/fsl_xcvr.c
@@ -1395,7 +1395,7 @@ static irqreturn_t irq0_isr(int irq, void *devid)
 	if (isr & FSL_XCVR_IRQ_NEW_CS) {
 		dev_dbg(dev, "Received new CS block\n");
 		isr_clr |= FSL_XCVR_IRQ_NEW_CS;
-		if (!xcvr->soc_data->spdif_only) {
+		if (xcvr->soc_data->fw_name) {
 			/* Data RAM is 4KiB, last two pages: 8 and 9. Select page 8. */
 			regmap_update_bits(xcvr->regmap, FSL_XCVR_EXT_CTRL,
 					   FSL_XCVR_EXT_CTRL_PAGE_MASK,
@@ -1517,6 +1517,7 @@ static const struct fsl_xcvr_soc_data fsl_xcvr_imx93_data = {
 };
 
 static const struct fsl_xcvr_soc_data fsl_xcvr_imx95_data = {
+	.fw_name = "imx/xcvr/xcvr-imx95.bin",
 	.spdif_only = true,
 	.use_phy = true,
 	.use_edma = true,
@@ -1806,7 +1807,7 @@ static int fsl_xcvr_runtime_resume(struct device *dev)
 		}
 	}
 
-	if (xcvr->mode == FSL_XCVR_MODE_EARC) {
+	if (xcvr->soc_data->fw_name) {
 		ret = fsl_xcvr_load_firmware(xcvr);
 		if (ret) {
 			dev_err(dev, "failed to load firmware.\n");
-- 
2.34.1