Update the TGU driver to the latest upstream version

Documentation/ABI/testing/sysfs-bus-amba-devices-tgu

@@ -0,0 +1,51 @@
+What:		/sys/bus/amba/devices/<tgu-name>/enable_tgu
+Date:		April 2026
+KernelVersion:	7.1
+Contact:	Jinlong Mao <jinlong.mao@oss.qualcomm.com>, Songwei Chai <songwei.chai@oss.qualcomm.com>
+Description:
+		(RW) Set/Get the enable/disable status of TGU
+		Accepts only one of the 2 values -  0 or 1.
+		0 : disable TGU.
+		1 : enable TGU.
+
+What:		/sys/bus/amba/devices/<tgu-name>/step[0:7]_priority[0:3]/reg[0:17]
+Date:		April 2026
+KernelVersion:	7.1
+Contact:	Jinlong Mao <jinlong.mao@oss.qualcomm.com>, Songwei Chai <songwei.chai@oss.qualcomm.com>
+Description:
+		(RW) Set/Get the sensed signal with specific step and priority for TGU.
+
+What:		/sys/bus/amba/devices/<tgu-name>/step[0:7]_condition_decode/reg[0:3]
+Date:		April 2026
+KernelVersion:	7.1
+Contact:	Jinlong Mao <jinlong.mao@oss.qualcomm.com>, Songwei Chai <songwei.chai@oss.qualcomm.com>
+Description:
+		(RW) Set/Get the decode mode with specific step for TGU.
+
+What:		/sys/bus/amba/devices/<tgu-name>/step[0:7]_condition_select/reg[0:3]
+Date:		April 2026
+KernelVersion:	7.1
+Contact:	Jinlong Mao <jinlong.mao@oss.qualcomm.com>, Songwei Chai <songwei.chai@oss.qualcomm.com>
+Description:
+		(RW) Set/Get the next action with specific step for TGU.
+
+What:		/sys/bus/amba/devices/<tgu-name>/step[0:7]_timer/reg[0:1]
+Date:		April 2026
+KernelVersion:	7.1
+Contact:	Jinlong Mao <jinlong.mao@oss.qualcomm.com>, Songwei Chai <songwei.chai@oss.qualcomm.com>
+Description:
+		(RW) Set/Get the timer value with specific step for TGU.
+
+What:		/sys/bus/amba/devices/<tgu-name>/step[0:7]_counter/reg[0:1]
+Date:		April 2026
+KernelVersion:	7.1
+Contact:	Jinlong Mao <jinlong.mao@oss.qualcomm.com>, Songwei Chai <songwei.chai@oss.qualcomm.com>
+Description:
+		(RW) Set/Get the counter value with specific step for TGU.
+
+What:		/sys/bus/amba/devices/<tgu-name>/reset_tgu
+Date:		April 2026
+KernelVersion:	7.1
+Contact:	Jinlong Mao <jinlong.mao@oss.qualcomm.com>, Songwei Chai <songwei.chai@oss.qualcomm.com>
+Description:
+		(Write) Write 1 to reset the dataset for TGU.

Documentation/devicetree/bindings/arm/qcom,coresight-tgu.yaml → Documentation/devicetree/bindings/arm/qcom,tgu.yaml

@@ -2,7 +2,7 @@
 # Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights reserved.
 %YAML 1.2
 ---
-$id: http://devicetree.org/schemas/arm/qcom,coresight-tgu.yaml#
+$id: http://devicetree.org/schemas/arm/qcom,tgu.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
 title: Trigger Generation Unit - TGU
@@ -18,27 +18,27 @@ description: |
   preprogrammed state/sequence and then produce a trigger or interrupt.
 
   The primary use case of the TGU is to detect patterns or sequences on a
-  given set of signals within some region to indentify the issue in time
+  given set of signals within some region to identify the issue in time
   once there is abnormal behavior in the subsystem.
 
 maintainers:
-  - Mao Jinlong <quic_jinlmao@quicinc.com>
-  - Sam Chai <quic_songchai@quicinc.com>
+  - Mao Jinlong <jinlong.mao@oss.qualcomm.com>
+  - Songwei Chai <songwei.chai@oss.qualcomm.com>
 
 # Need a custom select here or 'arm,primecell' will match on lots of nodes
 select:
   properties:
     compatible:
       contains:
         enum:
-          - qcom,coresight-tgu
+          - qcom,tgu
   required:
     - compatible
 
 properties:
   compatible:
     items:
-      - const: qcom,coresight-tgu
+      - const: qcom,tgu
       - const: arm,primecell
 
   reg:
@@ -51,19 +51,6 @@ properties:
     items:
       - const: apb_pclk
 
-  in-ports:
-    $ref: /schemas/graph.yaml#/properties/ports
-    additionalProperties: false
-
-    properties:
-      port:
-        description:
-          The port mechanism here ensures the relationship between TGU and
-          TPDM, as TPDM is one of the inputs for TGU. It will allow TGU to
-          function as TPDM's helper and enable TGU when the connected
-          TPDM is enabled.
-        $ref: /schemas/graph.yaml#/properties/port
-
 required:
   - compatible
   - reg
@@ -75,18 +62,10 @@ additionalProperties: false
 examples:
   - |
     tgu@10b0e000 {
-        compatible = "qcom,coresight-tgu", "arm,primecell";
+        compatible = "qcom,tgu", "arm,primecell";
         reg = <0x10b0e000 0x1000>;
 
         clocks = <&aoss_qmp>;
         clock-names = "apb_pclk";
-
-        in-ports {
-            port {
-                tgu_in_tpdm_swao: endpoint{
-                    remote-endpoint = <&tpdm_swao_out_tgu>;
-                };
-            };
-        };
     };
 ...

arch/arm64/configs/qcom.config

@@ -16,7 +16,7 @@ CONFIG_CORESIGHT_CORESIGHT_TNOC=m
 CONFIG_CORESIGHT_CTCU=m
 CONFIG_CORESIGHT_DUMMY=m
 CONFIG_CORESIGHT_SOURCE_ETM4X=m
-CONFIG_CORESIGHT_TGU=m
+CONFIG_QCOM_TGU=m
 CONFIG_CORESIGHT_TPDM=m
 CONFIG_CPU_IDLE_THERMAL=y
 # CONFIG_DEBUG_INFO_REDUCED is not set

drivers/Makefile

@@ -176,6 +176,7 @@ obj-$(CONFIG_RAS)		+= ras/
 obj-$(CONFIG_USB4)		+= thunderbolt/
 obj-$(CONFIG_CORESIGHT)		+= hwtracing/coresight/
 obj-y				+= hwtracing/intel_th/
+obj-y				+= hwtracing/qcom/
 obj-$(CONFIG_STM)		+= hwtracing/stm/
 obj-$(CONFIG_HISI_PTT)		+= hwtracing/ptt/
 obj-y				+= android/

drivers/hwtracing/Kconfig

@@ -7,4 +7,6 @@ source "drivers/hwtracing/intel_th/Kconfig"
 
 source "drivers/hwtracing/ptt/Kconfig"
 
+source "drivers/hwtracing/qcom/Kconfig"
+
 endmenu

drivers/hwtracing/coresight/Kconfig

@@ -20,17 +20,6 @@ menuconfig CORESIGHT
 	  module will be called coresight.
 
 if CORESIGHT
-config CORESIGHT_TGU
-	tristate "CoreSight Trigger Generation Unit driver"
-	help
-	  This driver provides support for Trigger Generation Unit that is
-	  used to detect patterns or sequences on a given set of signals.
-	  TGU is used to monitor a particular bus within a given region to
-	  detect illegal transaction sequences or slave responses. It is also
-	  used to monitor a data stream to detect protocol violations and to
-	  provide a trigger point for centering data around a specific event
-	  within the trace data buffer.
-
 config CORESIGHT_LINKS_AND_SINKS
 	tristate "CoreSight Link and Sink drivers"
 	help

drivers/hwtracing/coresight/Makefile

@@ -54,7 +54,6 @@ coresight-cti-y := coresight-cti-core.o	coresight-cti-platform.o \
 		   coresight-cti-sysfs.o
 obj-$(CONFIG_ULTRASOC_SMB) += ultrasoc-smb.o
 obj-$(CONFIG_CORESIGHT_DUMMY) += coresight-dummy.o
-obj-$(CONFIG_CORESIGHT_TGU) += coresight-tgu.o
 obj-$(CONFIG_CORESIGHT_CTCU) += coresight-ctcu.o
 coresight-ctcu-y := coresight-ctcu-core.o coresight-ctcu-byte-cntr.o
 obj-$(CONFIG_CORESIGHT_KUNIT_TESTS) += coresight-kunit-tests.o