spi: axi-spi-engine improvements

Merge series from David Lechner <dlechner@baylibre.com>:

We are working towards adding support for the offload feature[1] of the
AXI SPI Engine IP core. Before we can do that, we want to make some
general fixes and improvements to the driver. In order to avoid a giant
series with 35+ patches, we are splitting this up into a few smaller
series.

This first series mostly doing some housekeeping:
* Convert device tree bindings to yaml.
* Add a MAINTAINERS entry.
* Clean up probe and remove using devm.
* Separate message state from driver state.
* Add support for cs_off and variable word size.

Once this series is applied, we will follow up with a second series of
general improvements, and then finally a 3rd series that implements the
offload support. The offload support will also involve the IIO
subsystem (a new IIO driver will depend on the new SPI offload feature),
so I'm mentioning this now in case we want to do anything ahead of time
to prepare for that (e.g. putting all of these changes on a separate
branch).

[1]: https://wiki.analog.com/resources/fpga/peripherals/spi_engine/offload

Author: broonie

Documentation/arch/x86/boot.rst

@@ -77,7 +77,7 @@ Protocol 2.14	BURNT BY INCORRECT COMMIT
 Protocol 2.15	(Kernel 5.5) Added the kernel_info and kernel_info.setup_type_max.
 =============	============================================================
 
-.. note::
+  .. note::
      The protocol version number should be changed only if the setup header
      is changed. There is no need to update the version number if boot_params
      or kernel_info are changed. Additionally, it is recommended to use

Documentation/devicetree/bindings/net/ethernet-controller.yaml

@@ -275,12 +275,12 @@ allOf:
       properties:
         rx-internal-delay-ps:
           description:
-            RGMII Receive Clock Delay defined in pico seconds.This is used for
+            RGMII Receive Clock Delay defined in pico seconds. This is used for
             controllers that have configurable RX internal delays. If this
             property is present then the MAC applies the RX delay.
         tx-internal-delay-ps:
           description:
-            RGMII Transmit Clock Delay defined in pico seconds.This is used for
+            RGMII Transmit Clock Delay defined in pico seconds. This is used for
             controllers that have configurable TX internal delays. If this
             property is present then the MAC applies the TX delay.
 

Documentation/devicetree/bindings/spi/adi,axi-spi-engine.txt

@@ -0,0 +1,66 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/adi,axi-spi-engine.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices AXI SPI Engine Controller
+
+description: |
+  The AXI SPI Engine controller is part of the SPI Engine framework[1] and
+  allows memory mapped access to the SPI Engine control bus. This allows it
+  to be used as a general purpose software driven SPI controller as well as
+  some optional advanced acceleration and offloading capabilities.
+
+  [1] https://wiki.analog.com/resources/fpga/peripherals/spi_engine
+
+maintainers:
+  - Michael Hennerich <Michael.Hennerich@analog.com>
+  - Nuno Sá <nuno.sa@analog.com>
+
+allOf:
+  - $ref: /schemas/spi/spi-controller.yaml#
+
+properties:
+  compatible:
+    const: adi,axi-spi-engine-1.00.a
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: The AXI interconnect clock.
+      - description: The SPI controller clock.
+
+  clock-names:
+    items:
+      - const: s_axi_aclk
+      - const: spi_clk
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    spi@44a00000 {
+        compatible = "adi,axi-spi-engine-1.00.a";
+        reg = <0x44a00000 0x1000>;
+        interrupts = <0 56 4>;
+        clocks = <&clkc 15>, <&clkc 15>;
+        clock-names = "s_axi_aclk", "spi_clk";
+
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        /* SPI devices */
+    };

Documentation/devicetree/bindings/spi/adi,axi-spi-engine.yaml

@@ -36,6 +36,7 @@ properties:
           - qcom,sm8350-ufshc
           - qcom,sm8450-ufshc
           - qcom,sm8550-ufshc
+          - qcom,sm8650-ufshc
       - const: qcom,ufshc
       - const: jedec,ufs-2.0
 
@@ -122,6 +123,7 @@ allOf:
               - qcom,sm8350-ufshc
               - qcom,sm8450-ufshc
               - qcom,sm8550-ufshc
+              - qcom,sm8650-ufshc
     then:
       properties:
         clocks:

Documentation/devicetree/bindings/ufs/qcom,ufs.yaml

@@ -3415,6 +3415,16 @@ W:	https://ez.analog.com/linux-software-drivers
 F:	Documentation/devicetree/bindings/hwmon/adi,axi-fan-control.yaml
 F:	drivers/hwmon/axi-fan-control.c
 
+AXI SPI ENGINE
+M:	Michael Hennerich <michael.hennerich@analog.com>
+M:	Nuno Sá <nuno.sa@analog.com>
+R:	David Lechner <dlechner@baylibre.com>
+L:	linux-spi@vger.kernel.org
+S:	Supported
+W:	https://ez.analog.com/linux-software-drivers
+F:	Documentation/devicetree/bindings/spi/adi,axi-spi-engine.yaml
+F:	drivers/spi/spi-axi-spi-engine.c
+
 AXXIA I2C CONTROLLER
 M:	Krzysztof Adamski <krzysztof.adamski@nokia.com>
 L:	linux-i2c@vger.kernel.org
@@ -8950,7 +8960,6 @@ S:	Maintained
 F:	scripts/get_maintainer.pl
 
 GFS2 FILE SYSTEM
-M:	Bob Peterson <rpeterso@redhat.com>
 M:	Andreas Gruenbacher <agruenba@redhat.com>
 L:	gfs2@lists.linux.dev
 S:	Supported
@@ -21769,7 +21778,9 @@ F:	Documentation/devicetree/bindings/counter/ti-eqep.yaml
 F:	drivers/counter/ti-eqep.c
 
 TI ETHERNET SWITCH DRIVER (CPSW)
-R:	Grygorii Strashko <grygorii.strashko@ti.com>
+R:	Siddharth Vadapalli <s-vadapalli@ti.com>
+R:	Ravi Gunasekaran <r-gunasekaran@ti.com>
+R:	Roger Quadros <rogerq@kernel.org>
 L:	linux-omap@vger.kernel.org
 L:	netdev@vger.kernel.org
 S:	Maintained
@@ -21793,6 +21804,15 @@ F:	Documentation/devicetree/bindings/media/i2c/ti,ds90*
 F:	drivers/media/i2c/ds90*
 F:	include/media/i2c/ds90*
 
+TI ICSSG ETHERNET DRIVER (ICSSG)
+R:	MD Danish Anwar <danishanwar@ti.com>
+R:	Roger Quadros <rogerq@kernel.org>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+L:	netdev@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/net/ti,icss*.yaml
+F:	drivers/net/ethernet/ti/icssg/*
+
 TI J721E CSI2RX DRIVER
 M:	Jai Luthra <j-luthra@ti.com>
 L:	linux-media@vger.kernel.org
@@ -23692,6 +23712,20 @@ F:	arch/x86/kernel/dumpstack.c
 F:	arch/x86/kernel/stacktrace.c
 F:	arch/x86/kernel/unwind_*.c
 
+X86 TRUST DOMAIN EXTENSIONS (TDX)
+M:	Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
+R:	Dave Hansen <dave.hansen@linux.intel.com>
+L:	x86@kernel.org
+L:	linux-coco@lists.linux.dev
+S:	Supported
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/tdx
+F:	arch/x86/boot/compressed/tdx*
+F:	arch/x86/coco/tdx/
+F:	arch/x86/include/asm/shared/tdx.h
+F:	arch/x86/include/asm/tdx.h
+F:	arch/x86/virt/vmx/tdx/
+F:	drivers/virt/coco/tdx-guest
+
 X86 VDSO
 M:	Andy Lutomirski <luto@kernel.org>
 L:	linux-kernel@vger.kernel.org
@@ -23872,8 +23906,7 @@ T:	git git://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git
 P:	Documentation/filesystems/xfs-maintainer-entry-profile.rst
 F:	Documentation/ABI/testing/sysfs-fs-xfs
 F:	Documentation/admin-guide/xfs.rst
-F:	Documentation/filesystems/xfs-delayed-logging-design.rst
-F:	Documentation/filesystems/xfs-self-describing-metadata.rst
+F:	Documentation/filesystems/xfs-*
 F:	fs/xfs/
 F:	include/uapi/linux/dqblk_xfs.h
 F:	include/uapi/linux/fsmap.h

MAINTAINERS

@@ -2,7 +2,7 @@
 VERSION = 6
 PATCHLEVEL = 7
 SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc2
 NAME = Hurr durr I'ma ninja sloth
 
 # *DOCUMENTATION*

Makefile

@@ -140,11 +140,11 @@ config ARCH_MMAP_RND_COMPAT_BITS_MIN
 	default 8
 
 config ARCH_MMAP_RND_BITS_MAX
-	default 24 if 64BIT
-	default 17
+	default 18 if 64BIT
+	default 13
 
 config ARCH_MMAP_RND_COMPAT_BITS_MAX
-	default 17
+	default 13
 
 # unless you want to implement ACPI on PA-RISC ... ;-)
 config PM

arch/parisc/Kconfig

@@ -349,15 +349,7 @@ struct pt_regs;	/* forward declaration... */
 
 #define ELF_HWCAP	0
 
-/* Masks for stack and mmap randomization */
-#define BRK_RND_MASK	(is_32bit_task() ? 0x07ffUL : 0x3ffffUL)
-#define MMAP_RND_MASK	(is_32bit_task() ? 0x1fffUL : 0x3ffffUL)
-#define STACK_RND_MASK	MMAP_RND_MASK
-
-struct mm_struct;
-extern unsigned long arch_randomize_brk(struct mm_struct *);
-#define arch_randomize_brk arch_randomize_brk
-
+#define STACK_RND_MASK	0x7ff	/* 8MB of VA */
 
 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
 struct linux_binprm;

arch/parisc/include/asm/elf.h

@@ -47,6 +47,8 @@
 
 #ifndef __ASSEMBLY__
 
+struct rlimit;
+unsigned long mmap_upper_limit(struct rlimit *rlim_stack);
 unsigned long calc_max_stack_size(unsigned long stack_max);
 
 /*