Subject: [PATCH 05/14] remoteproc: qcom_q6v5_pas: Switch over to generic PAS TZ APIs

From: Sumit Garg <[email-masked]>
Date: Fri, 6 Mar 2026 16:20:18 +0530

From: Sumit Garg <[email-masked]>

Switch qcom_q6v5_pas client driver over to generic PAS TZ APIs. Generic PAS
TZ service allows to support multiple TZ implementation backends like QTEE
based SCM PAS service, OP-TEE based PAS service and any further future TZ
backend service.

Signed-off-by: Sumit Garg <[email-masked]>
---
 drivers/remoteproc/qcom_q6v5_pas.c | 51 +++++++++++++++---------------
 1 file changed, 26 insertions(+), 25 deletions(-)

diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index 46204da046fa..8c4313f5bbc2 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -20,6 +20,7 @@
 #include <linux/platform_device.h>
 #include <linux/pm_domain.h>
 #include <linux/pm_runtime.h>
+#include <linux/firmware/qcom/qcom_pas.h>
 #include <linux/firmware/qcom/qcom_scm.h>
 #include <linux/regulator/consumer.h>
 #include <linux/remoteproc.h>
@@ -118,8 +119,8 @@ struct qcom_pas {
 	struct qcom_rproc_ssr ssr_subdev;
 	struct qcom_sysmon *sysmon;
 
-	struct qcom_scm_pas_context *pas_ctx;
-	struct qcom_scm_pas_context *dtb_pas_ctx;
+	struct qcom_pas_context *pas_ctx;
+	struct qcom_pas_context *dtb_pas_ctx;
 };
 
 static void qcom_pas_segment_dump(struct rproc *rproc,
@@ -196,7 +197,7 @@ static int qcom_pas_shutdown_poll_decrypt(struct qcom_pas *pas)
 
 	do {
 		msleep(QCOM_PAS_DECRYPT_SHUTDOWN_DELAY_MS);
-		ret = qcom_scm_pas_shutdown(pas->pas_id);
+		ret = qcom_pas_shutdown(pas->pas_id);
 	} while (ret == -EINVAL && --retry_num);
 
 	return ret;
@@ -212,9 +213,9 @@ static int qcom_pas_unprepare(struct rproc *rproc)
 	 * auth_and_reset() was successful, but in other cases clean it up
 	 * here.
 	 */
-	qcom_scm_pas_metadata_release(pas->pas_ctx);
+	qcom_pas_metadata_release(pas->pas_ctx);
 	if (pas->dtb_pas_id)
-		qcom_scm_pas_metadata_release(pas->dtb_pas_ctx);
+		qcom_pas_metadata_release(pas->dtb_pas_ctx);
 
 	return 0;
 }
@@ -228,9 +229,9 @@ static int qcom_pas_load(struct rproc *rproc, const struct firmware *fw)
 	pas->firmware = fw;
 
 	if (pas->lite_pas_id)
-		qcom_scm_pas_shutdown(pas->lite_pas_id);
+		qcom_pas_shutdown(pas->lite_pas_id);
 	if (pas->lite_dtb_pas_id)
-		qcom_scm_pas_shutdown(pas->lite_dtb_pas_id);
+		qcom_pas_shutdown(pas->lite_dtb_pas_id);
 
 	if (pas->dtb_pas_id) {
 		ret = request_firmware(&pas->dtb_firmware, pas->dtb_firmware_name, pas->dev);
@@ -250,7 +251,7 @@ static int qcom_pas_load(struct rproc *rproc, const struct firmware *fw)
 	return 0;
 
 release_dtb_metadata:
-	qcom_scm_pas_metadata_release(pas->dtb_pas_ctx);
+	qcom_pas_metadata_release(pas->dtb_pas_ctx);
 	release_firmware(pas->dtb_firmware);
 
 	return ret;
@@ -310,7 +311,7 @@ static int qcom_pas_start(struct rproc *rproc)
 		if (ret)
 			goto disable_px_supply;
 
-		ret = qcom_scm_pas_prepare_and_auth_reset(pas->dtb_pas_ctx);
+		ret = qcom_pas_prepare_and_auth_reset(pas->dtb_pas_ctx);
 		if (ret) {
 			dev_err(pas->dev,
 				"failed to authenticate dtb image and release reset\n");
@@ -329,7 +330,7 @@ static int qcom_pas_start(struct rproc *rproc)
 	if (ret)
 		goto release_pas_metadata;
 
-	ret = qcom_scm_pas_prepare_and_auth_reset(pas->pas_ctx);
+	ret = qcom_pas_prepare_and_auth_reset(pas->pas_ctx);
 	if (ret) {
 		dev_err(pas->dev,
 			"failed to authenticate image and release reset\n");
@@ -339,13 +340,13 @@ static int qcom_pas_start(struct rproc *rproc)
 	ret = qcom_q6v5_wait_for_start(&pas->q6v5, msecs_to_jiffies(5000));
 	if (ret == -ETIMEDOUT) {
 		dev_err(pas->dev, "start timed out\n");
-		qcom_scm_pas_shutdown(pas->pas_id);
+		qcom_pas_shutdown(pas->pas_id);
 		goto unmap_carveout;
 	}
 
-	qcom_scm_pas_metadata_release(pas->pas_ctx);
+	qcom_pas_metadata_release(pas->pas_ctx);
 	if (pas->dtb_pas_id)
-		qcom_scm_pas_metadata_release(pas->dtb_pas_ctx);
+		qcom_pas_metadata_release(pas->dtb_pas_ctx);
 
 	/* firmware is used to pass reference from qcom_pas_start(), drop it now */
 	pas->firmware = NULL;
@@ -355,9 +356,9 @@ static int qcom_pas_start(struct rproc *rproc)
 unmap_carveout:
 	qcom_pas_unmap_carveout(rproc, pas->mem_phys, pas->mem_size);
 release_pas_metadata:
-	qcom_scm_pas_metadata_release(pas->pas_ctx);
+	qcom_pas_metadata_release(pas->pas_ctx);
 	if (pas->dtb_pas_id)
-		qcom_scm_pas_metadata_release(pas->dtb_pas_ctx);
+		qcom_pas_metadata_release(pas->dtb_pas_ctx);
 
 unmap_dtb_carveout:
 	if (pas->dtb_pas_id)
@@ -406,7 +407,7 @@ static int qcom_pas_stop(struct rproc *rproc)
 	if (ret == -ETIMEDOUT)
 		dev_err(pas->dev, "timed out on wait\n");
 
-	ret = qcom_scm_pas_shutdown(pas->pas_id);
+	ret = qcom_pas_shutdown(pas->pas_id);
 	if (ret && pas->decrypt_shutdown)
 		ret = qcom_pas_shutdown_poll_decrypt(pas);
 
@@ -414,7 +415,7 @@ static int qcom_pas_stop(struct rproc *rproc)
 		dev_err(pas->dev, "failed to shutdown: %d\n", ret);
 
 	if (pas->dtb_pas_id) {
-		ret = qcom_scm_pas_shutdown(pas->dtb_pas_id);
+		ret = qcom_pas_shutdown(pas->dtb_pas_id);
 		if (ret)
 			dev_err(pas->dev, "failed to shutdown dtb: %d\n", ret);
 
@@ -484,11 +485,11 @@ static int qcom_pas_parse_firmware(struct rproc *rproc, const struct firmware *f
 	 *
 	 * Here, we call rproc_elf_load_rsc_table() to check firmware binary has resources
 	 * or not and if it is not having then we pass NULL and zero as input resource
-	 * table pointer and size respectively to the argument of qcom_scm_pas_get_rsc_table()
+	 * table pointer and size respectively to the argument of qcom_pas_get_rsc_table()
 	 * and this is even true for Qualcomm remote processor who does follow remoteproc
 	 * framework.
 	 */
-	output_rt = qcom_scm_pas_get_rsc_table(pas->pas_ctx, table, table_sz, &output_rt_size);
+	output_rt = qcom_pas_get_rsc_table(pas->pas_ctx, table, table_sz, &output_rt_size);
 	ret = IS_ERR(output_rt) ? PTR_ERR(output_rt) : 0;
 	if (ret) {
 		dev_err(pas->dev, "Error in getting resource table: %d\n", ret);
@@ -746,7 +747,7 @@ static int qcom_pas_probe(struct platform_device *pdev)
 	if (!desc)
 		return -EINVAL;
 
-	if (!qcom_scm_is_available())
+	if (!qcom_pas_is_available())
 		return -EPROBE_DEFER;
 
 	fw_name = desc->firmware_name;
@@ -838,16 +839,16 @@ static int qcom_pas_probe(struct platform_device *pdev)
 
 	qcom_add_ssr_subdev(rproc, &pas->ssr_subdev, desc->ssr_name);
 
-	pas->pas_ctx = devm_qcom_scm_pas_context_alloc(pas->dev, pas->pas_id,
-						       pas->mem_phys, pas->mem_size);
+	pas->pas_ctx = devm_qcom_pas_context_alloc(pas->dev, pas->pas_id,
+						   pas->mem_phys, pas->mem_size);
 	if (IS_ERR(pas->pas_ctx)) {
 		ret = PTR_ERR(pas->pas_ctx);
 		goto remove_ssr_sysmon;
 	}
 
-	pas->dtb_pas_ctx = devm_qcom_scm_pas_context_alloc(pas->dev, pas->dtb_pas_id,
-							   pas->dtb_mem_phys,
-							   pas->dtb_mem_size);
+	pas->dtb_pas_ctx = devm_qcom_pas_context_alloc(pas->dev, pas->dtb_pas_id,
+						       pas->dtb_mem_phys,
+						       pas->dtb_mem_size);
 	if (IS_ERR(pas->dtb_pas_ctx)) {
 		ret = PTR_ERR(pas->dtb_pas_ctx);
 		goto remove_ssr_sysmon;
-- 
2.51.0