[PATCH v3 11/15] media: qcom: Switch to generic PAS TZ APIs

[Sumit Garg <sumit.garg@kernel.org>]

From: Sumit Garg <sumit.garg@oss.qualcomm.com>

Switch qcom media client drivers 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.

Along with that pass proper PAS ID to set_remote_state API. As per testing
the SCM backend just ignores it while OP-TEE makes use of it to for proper
book keeping purpose.

Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
---
 drivers/media/platform/qcom/iris/Kconfig      | 25 ++++++++++---------
 .../media/platform/qcom/iris/iris_firmware.c  |  9 ++++---
 drivers/media/platform/qcom/venus/Kconfig     |  1 +
 drivers/media/platform/qcom/venus/firmware.c  | 11 ++++----
 4 files changed, 25 insertions(+), 21 deletions(-)

diff --git a/drivers/media/platform/qcom/iris/Kconfig b/drivers/media/platform/qcom/iris/Kconfig
index 3c803a05305a..f54b759c18aa 100644
--- a/drivers/media/platform/qcom/iris/Kconfig
+++ b/drivers/media/platform/qcom/iris/Kconfig
@@ -1,13 +1,14 @@
 config VIDEO_QCOM_IRIS
-        tristate "Qualcomm iris V4L2 decoder driver"
-        depends on VIDEO_DEV
-        depends on ARCH_QCOM || COMPILE_TEST
-        select V4L2_MEM2MEM_DEV
-        select QCOM_MDT_LOADER if ARCH_QCOM
-        select QCOM_SCM
-        select VIDEOBUF2_DMA_CONTIG
-        help
-          This is a V4L2 driver for Qualcomm iris video accelerator
-          hardware. It accelerates decoding operations on various
-          Qualcomm SoCs.
-          To compile this driver as a module choose m here.
+	tristate "Qualcomm iris V4L2 decoder driver"
+	depends on VIDEO_DEV
+	depends on ARCH_QCOM || COMPILE_TEST
+	select V4L2_MEM2MEM_DEV
+	select QCOM_MDT_LOADER if ARCH_QCOM
+	select QCOM_SCM
+	select QCOM_PAS
+	select VIDEOBUF2_DMA_CONTIG
+	help
+	  This is a V4L2 driver for Qualcomm iris video accelerator
+	  hardware. It accelerates decoding operations on various
+	  Qualcomm SoCs.
+	  To compile this driver as a module choose m here.
diff --git a/drivers/media/platform/qcom/iris/iris_firmware.c b/drivers/media/platform/qcom/iris/iris_firmware.c
index 5f408024e967..856fa6a79064 100644
--- a/drivers/media/platform/qcom/iris/iris_firmware.c
+++ b/drivers/media/platform/qcom/iris/iris_firmware.c
@@ -4,6 +4,7 @@
  */
 
 #include <linux/firmware.h>
+#include <linux/firmware/qcom/qcom_pas.h>
 #include <linux/firmware/qcom/qcom_scm.h>
 #include <linux/of_address.h>
 #include <linux/of_reserved_mem.h>
@@ -79,7 +80,7 @@ int iris_fw_load(struct iris_core *core)
 		return -ENOMEM;
 	}
 
-	ret = qcom_scm_pas_auth_and_reset(core->iris_platform_data->pas_id);
+	ret = qcom_pas_auth_and_reset(core->iris_platform_data->pas_id);
 	if (ret)  {
 		dev_err(core->dev, "auth and reset failed: %d\n", ret);
 		return ret;
@@ -93,7 +94,7 @@ int iris_fw_load(struct iris_core *core)
 						     cp_config->cp_nonpixel_size);
 		if (ret) {
 			dev_err(core->dev, "qcom_scm_mem_protect_video_var failed: %d\n", ret);
-			qcom_scm_pas_shutdown(core->iris_platform_data->pas_id);
+			qcom_pas_shutdown(core->iris_platform_data->pas_id);
 			return ret;
 		}
 	}
@@ -103,10 +104,10 @@ int iris_fw_load(struct iris_core *core)
 
 int iris_fw_unload(struct iris_core *core)
 {
-	return qcom_scm_pas_shutdown(core->iris_platform_data->pas_id);
+	return qcom_pas_shutdown(core->iris_platform_data->pas_id);
 }
 
 int iris_set_hw_state(struct iris_core *core, bool resume)
 {
-	return qcom_scm_set_remote_state(resume, 0);
+	return qcom_pas_set_remote_state(resume, core->iris_platform_data->pas_id);
 }
diff --git a/drivers/media/platform/qcom/venus/Kconfig b/drivers/media/platform/qcom/venus/Kconfig
index ffb731ecd48c..574172724e8f 100644
--- a/drivers/media/platform/qcom/venus/Kconfig
+++ b/drivers/media/platform/qcom/venus/Kconfig
@@ -6,6 +6,7 @@ config VIDEO_QCOM_VENUS
 	select OF_DYNAMIC if ARCH_QCOM
 	select QCOM_MDT_LOADER if ARCH_QCOM
 	select QCOM_SCM
+	select QCOM_PAS
 	select VIDEOBUF2_DMA_CONTIG
 	select V4L2_MEM2MEM_DEV
 	help
diff --git a/drivers/media/platform/qcom/venus/firmware.c b/drivers/media/platform/qcom/venus/firmware.c
index 1de7436713ed..3c0727ea137d 100644
--- a/drivers/media/platform/qcom/venus/firmware.c
+++ b/drivers/media/platform/qcom/venus/firmware.c
@@ -12,6 +12,7 @@
 #include <linux/of_reserved_mem.h>
 #include <linux/platform_device.h>
 #include <linux/of_device.h>
+#include <linux/firmware/qcom/qcom_pas.h>
 #include <linux/firmware/qcom/qcom_scm.h>
 #include <linux/sizes.h>
 #include <linux/soc/qcom/mdt_loader.h>
@@ -58,7 +59,7 @@ int venus_set_hw_state(struct venus_core *core, bool resume)
 	int ret;
 
 	if (core->use_tz) {
-		ret = qcom_scm_set_remote_state(resume, 0);
+		ret = qcom_pas_set_remote_state(resume, VENUS_PAS_ID);
 		if (resume && ret == -EINVAL)
 			ret = 0;
 		return ret;
@@ -218,7 +219,7 @@ int venus_boot(struct venus_core *core)
 	int ret;
 
 	if (!IS_ENABLED(CONFIG_QCOM_MDT_LOADER) ||
-	    (core->use_tz && !qcom_scm_is_available()))
+	    (core->use_tz && !qcom_pas_is_available()))
 		return -EPROBE_DEFER;
 
 	ret = of_property_read_string_index(dev->of_node, "firmware-name", 0,
@@ -236,7 +237,7 @@ int venus_boot(struct venus_core *core)
 	core->fw.mem_phys = mem_phys;
 
 	if (core->use_tz)
-		ret = qcom_scm_pas_auth_and_reset(VENUS_PAS_ID);
+		ret = qcom_pas_auth_and_reset(VENUS_PAS_ID);
 	else
 		ret = venus_boot_no_tz(core, mem_phys, mem_size);
 
@@ -259,7 +260,7 @@ int venus_boot(struct venus_core *core)
 						     res->cp_nonpixel_start,
 						     res->cp_nonpixel_size);
 		if (ret) {
-			qcom_scm_pas_shutdown(VENUS_PAS_ID);
+			qcom_pas_shutdown(VENUS_PAS_ID);
 			dev_err(dev, "set virtual address ranges fail (%d)\n",
 				ret);
 			return ret;
@@ -274,7 +275,7 @@ int venus_shutdown(struct venus_core *core)
 	int ret;
 
 	if (core->use_tz)
-		ret = qcom_scm_pas_shutdown(VENUS_PAS_ID);
+		ret = qcom_pas_shutdown(VENUS_PAS_ID);
 	else
 		ret = venus_shutdown_no_tz(core);
 
-- 
2.51.0