adsp-loader: Add support to load adsp firmware with image name

Use rproc_set_firmware API to load ADSP dtb firmware using
image name when adsp_dbt_name is set based on
fuse variant.

Change-Id: If5c592f160585871165d5c047e1c5acc59bfe1c1
Signed-off-by: Sarath Varma Ganapathiraju <quic_ganavarm@quicinc.com>

dsp/adsp-loader.c

@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
  * Copyright (c) 2012-2014, 2017-2021, The Linux Foundation. All rights reserved.
- * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022-2024, Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
 #include <linux/init.h>
@@ -348,6 +348,7 @@ static int adsp_loader_probe(struct platform_device *pdev)
 	size_t len;
 	u32 *buf;
 	const char **adsp_fw_name_array = NULL;
+	const char **adsp_dtb_fw_name_array = NULL;
 	int adsp_fw_cnt;
 	u32* adsp_fw_bit_values = NULL;
 	int i;
@@ -504,6 +505,20 @@ static int adsp_loader_probe(struct platform_device *pdev)
 		goto wqueue;
 	}
 
+	adsp_dtb_fw_name_array = devm_kzalloc(&pdev->dev,
+				adsp_fw_cnt * sizeof(char *), GFP_KERNEL);
+
+	/* Read ADSP dtb firmware image names */
+	ret = of_property_read_string_array(pdev->dev.of_node,
+					"adsp-dtb-fw-names",
+					adsp_dtb_fw_name_array,
+					adsp_fw_cnt);
+	if (ret < 0) {
+		dev_dbg(&pdev->dev, "%s: unable to read adsp-dtb-fw-names\n",
+			__func__);
+		goto wqueue;
+	}
+
 	for (i = 0; i < adsp_fw_cnt; i++) {
 		if (adsp_fw_bit_values[i] == adsp_var_idx) {
 			fw_name_size = strlen(adsp_fw_name_array[i]) + 1;
@@ -514,6 +529,15 @@ static int adsp_loader_probe(struct platform_device *pdev)
 				goto wqueue;
 			strlcpy(priv->adsp_fw_name, adsp_fw_name_array[i],
 				fw_name_size);
+
+			fw_name_size = strlen(adsp_dtb_fw_name_array[i]) + 1;
+			priv->adsp_dtb_name = devm_kzalloc(&pdev->dev,
+						fw_name_size,
+						GFP_KERNEL);
+			if (!priv->adsp_dtb_name)
+				goto wqueue;
+			strscpy(priv->adsp_dtb_name, adsp_dtb_fw_name_array[i],
+				fw_name_size);
 			break;
 		}
 	}