Merge tag 'svc_updates_for_v7.3' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into char-misc-next

SoCFPGA firmware updates for v7.3
- Document stratix10-rsu for QSPI size and erase size
- Add method to retrieve device info table using RSU
- Add support for hardware monitoring using service driver

Resolves merge conflicts in:
	drivers/firmware/stratix10-svc.c

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

* tag 'svc_updates_for_v7.3' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
  hwmon: add Altera SoC FPGA hardware monitoring driver
  firmware: stratix10-svc: add async HWMON read commands and register socfpga-hwmon device
  firmware: stratix10-rsu: Add synchronous fallback for async SVC operations
  firmware: stratix10-rsu: Add flash device info retrieval via SMC
  Documentation: ABI: add stratix10-rsu QSPI size and erase_size sysfs

3 files changed, 93 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/sysfs-devices-platform-stratix10-rsu b/Documentation/ABI/testing/sysfs-devices-platform-stratix10-rsu
index ee253b033280..b93341e4471d 100644
--- a/Documentation/ABI/testing/sysfs-devices-platform-stratix10-rsu
+++ b/Documentation/ABI/testing/sysfs-devices-platform-stratix10-rsu
@@ -172,3 +172,61 @@ Contact:	Richard Gong <richard.gong@linux.intel.com>
 Description:
 		(RO) max retry parameter is stored in the firmware
 		decision IO section, as a byte located at offset 0x18c.
+
+What:		/sys/devices/platform/stratix10-rsu.0/size0
+Date:		May 2026
+KernelVersion:	7.1
+Contact:	Tze Yee Ng <tze.yee.ng@altera.com>
+Description:
+		(RO) Flash size in bytes for QSPI device 0 (32-bit hex, one
+		line).  EIO if unavailable.
+
+What:		/sys/devices/platform/stratix10-rsu.0/size1
+Date:		May 2026
+KernelVersion:	7.1
+Contact:	Tze Yee Ng <tze.yee.ng@altera.com>
+Description:
+		(RO) Like size0 for device 1.
+
+What:		/sys/devices/platform/stratix10-rsu.0/size2
+Date:		May 2026
+KernelVersion:	7.1
+Contact:	Tze Yee Ng <tze.yee.ng@altera.com>
+Description:
+		(RO) Like size0 for device 2.
+
+What:		/sys/devices/platform/stratix10-rsu.0/size3
+Date:		May 2026
+KernelVersion:	7.1
+Contact:	Tze Yee Ng <tze.yee.ng@altera.com>
+Description:
+		(RO) Like size0 for device 3.
+
+What:		/sys/devices/platform/stratix10-rsu.0/erase_size0
+Date:		May 2026
+KernelVersion:	7.1
+Contact:	Tze Yee Ng <tze.yee.ng@altera.com>
+Description:
+		(RO) Erase size in bytes for QSPI device 0 (32-bit hex, one
+		line).  EIO if unavailable.
+
+What:		/sys/devices/platform/stratix10-rsu.0/erase_size1
+Date:		May 2026
+KernelVersion:	7.1
+Contact:	Tze Yee Ng <tze.yee.ng@altera.com>
+Description:
+		(RO) Like erase_size0 for device 1.
+
+What:		/sys/devices/platform/stratix10-rsu.0/erase_size2
+Date:		May 2026
+KernelVersion:	7.1
+Contact:	Tze Yee Ng <tze.yee.ng@altera.com>
+Description:
+		(RO) Like erase_size0 for device 2.
+
+What:		/sys/devices/platform/stratix10-rsu.0/erase_size3
+Date:		May 2026
+KernelVersion:	7.1
+Contact:	Tze Yee Ng <tze.yee.ng@altera.com>
+Description:
+		(RO) Like erase_size0 for device 3.
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
index 29130df44d12..dfab6fec09bb 100644
--- a/Documentation/hwmon/index.rst
+++ b/Documentation/hwmon/index.rst
@@ -251,6 +251,7 @@ Hardware Monitoring Kernel Drivers
    smsc47b397
    smsc47m192
    smsc47m1
+   socfpga-hwmon
    sparx5-temp
    spd5118
    stpddc60
diff --git a/Documentation/hwmon/socfpga-hwmon.rst b/Documentation/hwmon/socfpga-hwmon.rst
new file mode 100644
index 000000000000..e5da42556a62
--- /dev/null
+++ b/Documentation/hwmon/socfpga-hwmon.rst
@@ -0,0 +1,34 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+Kernel driver socfpga-hwmon
+=============================
+
+Supported chips:
+
+ * Altera Stratix 10 SoC FPGA
+ * Altera Agilex SoC FPGA
+
+Authors:
+      - Nazim Amirul <muhammad.nazim.amirul.nazle.asmade@altera.com>
+      - Tze Yee Ng <tze.yee.ng@altera.com>
+
+Description
+-----------
+
+This driver supports hardware monitoring for Altera SoC
+FPGA devices through the Secure Device Manager and Stratix 10 service layer.
+
+The following sensor types are supported:
+
+  * temperature
+  * voltage
+
+Usage Notes
+-----------
+
+The stratix10-svc driver registers a socfpga-hwmon platform device when
+hardware monitor support is enabled. Sensor channels are selected in the
+driver based on the service layer compatible string:
+
+  * intel,stratix10-svc
+  * intel,agilex-svc