Merge tag 'gpio-updates-for-v6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio updates from Bartosz Golaszewski:
 "We have three new drivers, some refactoring in the GPIO core, lots of
  various changes across many drivers, new configfs interface for the
  virtual gpio-aggregator module and DT-bindings updates.

  The treewide conversion of GPIO drivers to using the new value setter
  callbacks is ongoing with another round of GPIO drivers updated. You
  will also see these commits coming in from other subsystems as with
  the relevant changes merged into mainline last cycle, I've started
  converting GPIO providers located elsewhere than drivers/gpio/.

  GPIO core:
   - use more lock guards where applicable
   - refactor GPIO ACPI code and shrink it in the process by 8%
   - move GPIO ACPI quirks into a separate file
   - remove unneeded #ifdef
   - convert GPIO devres helpers to using devm_add_action() where
     applicable which shrinks and simplifies the code
   - refactor GPIO descriptor validation in GPIO consumer interfaces
   - don't allow setting values on input lines in the GPIO core which
     will take off the burden from GPIO drivers of checking this down
     the line
   - provide gpiod_is_equal() as a way of safely comparing two GPIO
     descriptors (the only current user is in regulator core)

  New drivers:
   - add the GPIO module for the max77759 multifunction device
   - add the GPIO driver for the VeriSilicon BLZP1600 GPIO controller
   - add the GPIO driver for the Spacemit K1 SoC

  Driver improvements:
   - convert more drivers to using the new GPIO line value setter
     callbacks
   - convert more drivers to making the irq_chip immutable as is
     recommended by the interrupt subsystem
   - extend build testing coverage by enabling more modules to be built
     with COMPILE_TEST=y
   - extend the gpio-aggregator module with a configfs interface that
     makes the setup easier for user-space than the existing
     driver-level sysfs attributes and also adds more advanced
     configuration features (such as referring to aggregated lines by
     their original names or modifying their names as exposed by the
     aggregated chip)
   - add a missing mutex_destroy() in gpio-imx-scu
   - add an OF polarity quirk for s5m8767
   - allow building gpio-vf610 as a loadable module
   - make gpio-mxc not hardcode its GPIO base number with GPIO SYSFS
     interface disabled (another small step towards getting rid of the
     global GPIO numberspace)
   - add support for level-triggered interrupts to gpio-pca953x
   - don't double-check the ngpios property in gpio-ds4520 as GPIO core
     already does it
   - don't double-check the number of GPIOs in gpio-imx-scu as GPIO core
     already does it
   - remove unused callbacks from gpio-max3191x

  DT bindings:
   - add device-tree bindings for max77759, spacemit,k1 and blzp1600
     (new drivers added this cycle)
   - document more properties for gpio-vf610 and gpio-tegra186
   - document a new pca95xx variant
   - fix style of examples in several GPIO DT-binding documents

  Misc:
   - TODO list updates"

* tag 'gpio-updates-for-v6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (123 commits)
  gpio: timberdale: select GPIOLIB_IRQCHIP
  gpio: lpc18xx: select GPIOLIB_IRQCHIP
  gpio: grgpio: select GPIOLIB_IRQCHIP
  gpio: bcm-kona: select GPIOLIB_IRQCHIP
  dt-bindings: gpio: vf610: add ngpios and gpio-reserved-ranges
  gpio: davinci: select GPIOLIB_IRQCHIP
  gpiolib-acpi: Update file references in the Documentation and MAINTAINERS
  gpiolib: acpi: Move quirks to a separate file
  gpiolib: acpi: Add acpi_gpio_need_run_edge_events_on_boot() getter
  gpiolib: acpi: Handle deferred list via new API
  gpiolib: acpi: Make sure we fill struct acpi_gpio_info
  gpiolib: acpi: Switch to use enum in acpi_gpio_in_ignore_list()
  gpiolib: acpi: Use temporary variable for struct acpi_gpio_info
  gpiolib: remove unneeded #ifdef
  gpio: mpc8xxx: select GPIOLIB_IRQCHIP
  gpio: pxa: select GPIOLIB_IRQCHIP
  gpio: pxa: Make irq_chip immutable
  gpio: timberdale: Make irq_chip immutable
  gpio: xgene-sb: Make irq_chip immutable
  gpio: davinci: Make irq_chip immutable
  ...

21 files changed, 603 insertions, 134 deletions

diff --git a/Documentation/admin-guide/gpio/gpio-aggregator.rst b/Documentation/admin-guide/gpio/gpio-aggregator.rst
index 5cd1e7221756..8374a9df9105 100644
--- a/Documentation/admin-guide/gpio/gpio-aggregator.rst
+++ b/Documentation/admin-guide/gpio/gpio-aggregator.rst
@@ -69,6 +69,113 @@ write-only attribute files in sysfs.
 		    $ echo gpio-aggregator.0 > delete_device
 
 
+Aggregating GPIOs using Configfs
+--------------------------------
+
+**Group:** ``/config/gpio-aggregator``
+
+    This is the root directory of the gpio-aggregator configfs tree.
+
+**Group:** ``/config/gpio-aggregator/<example-name>``
+
+    This directory represents a GPIO aggregator device. You can assign any
+    name to ``<example-name>`` (e.g. ``agg0``), except names starting with
+    ``_sysfs`` prefix, which are reserved for auto-generated configfs
+    entries corresponding to devices created via Sysfs.
+
+**Attribute:** ``/config/gpio-aggregator/<example-name>/live``
+
+    The ``live`` attribute allows to trigger the actual creation of the device
+    once it's fully configured. Accepted values are:
+
+    * ``1``, ``yes``, ``true`` : enable the virtual device
+    * ``0``, ``no``, ``false`` : disable the virtual device
+
+**Attribute:** ``/config/gpio-aggregator/<example-name>/dev_name``
+
+    The read-only ``dev_name`` attribute exposes the name of the device as it
+    will appear in the system on the platform bus (e.g. ``gpio-aggregator.0``).
+    This is useful for identifying a character device for the newly created
+    aggregator. If it's ``gpio-aggregator.0``,
+    ``/sys/devices/platform/gpio-aggregator.0/gpiochipX`` path tells you that the
+    GPIO device id is ``X``.
+
+You must create subdirectories for each virtual line you want to
+instantiate, named exactly as ``line0``, ``line1``, ..., ``lineY``, when
+you want to instantiate ``Y+1`` (Y >= 0) lines.  Configure all lines before
+activating the device by setting ``live`` to 1.
+
+**Group:** ``/config/gpio-aggregator/<example-name>/<lineY>/``
+
+    This directory represents a GPIO line to include in the aggregator.
+
+**Attribute:** ``/config/gpio-aggregator/<example-name>/<lineY>/key``
+
+**Attribute:** ``/config/gpio-aggregator/<example-name>/<lineY>/offset``
+
+    The default values after creating the ``<lineY>`` directory are:
+
+    * ``key`` : <empty>
+    * ``offset`` : -1
+
+    ``key`` must always be explicitly configured, while ``offset`` depends.
+    Two configuration patterns exist for each ``<lineY>``:
+
+    (a). For lookup by GPIO line name:
+
+         * Set ``key`` to the line name.
+         * Ensure ``offset`` remains -1 (the default).
+
+    (b). For lookup by GPIO chip name and the line offset within the chip:
+
+         * Set ``key`` to the chip name.
+         * Set ``offset`` to the line offset (0 <= ``offset`` < 65535).
+
+**Attribute:** ``/config/gpio-aggregator/<example-name>/<lineY>/name``
+
+    The ``name`` attribute sets a custom name for lineY. If left unset, the
+    line will remain unnamed.
+
+Once the configuration is done, the ``'live'`` attribute must be set to 1
+in order to instantiate the aggregator device. It can be set back to 0 to
+destroy the virtual device. The module will synchronously wait for the new
+aggregator device to be successfully probed and if this doesn't happen, writing
+to ``'live'`` will result in an error. This is a different behaviour from the
+case when you create it using sysfs ``new_device`` interface.
+
+.. note::
+
+   For aggregators created via Sysfs, the configfs entries are
+   auto-generated and appear as ``/config/gpio-aggregator/_sysfs.<N>/``. You
+   cannot add or remove line directories with mkdir(2)/rmdir(2). To modify
+   lines, you must use the "delete_device" interface to tear down the
+   existing device and reconfigure it from scratch. However, you can still
+   toggle the aggregator with the ``live`` attribute and adjust the
+   ``key``, ``offset``, and ``name`` attributes for each line when ``live``
+   is set to 0 by hand (i.e. it's not waiting for deferred probe).
+
+Sample configuration commands
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+.. code-block:: sh
+
+    # Create a directory for an aggregator device
+    $ mkdir /sys/kernel/config/gpio-aggregator/agg0
+
+    # Configure each line
+    $ mkdir /sys/kernel/config/gpio-aggregator/agg0/line0
+    $ echo gpiochip0 > /sys/kernel/config/gpio-aggregator/agg0/line0/key
+    $ echo 6         > /sys/kernel/config/gpio-aggregator/agg0/line0/offset
+    $ echo test0     > /sys/kernel/config/gpio-aggregator/agg0/line0/name
+    $ mkdir /sys/kernel/config/gpio-aggregator/agg0/line1
+    $ echo gpiochip0 > /sys/kernel/config/gpio-aggregator/agg0/line1/key
+    $ echo 7         > /sys/kernel/config/gpio-aggregator/agg0/line1/offset
+    $ echo test1     > /sys/kernel/config/gpio-aggregator/agg0/line1/name
+
+    # Activate the aggregator device
+    $ echo 1         > /sys/kernel/config/gpio-aggregator/agg0/live
+
+
 Generic GPIO Driver
 -------------------
 
diff --git a/Documentation/devicetree/bindings/gpio/atmel,at91rm9200-gpio.yaml b/Documentation/devicetree/bindings/gpio/atmel,at91rm9200-gpio.yaml
index 3dd70933ed8e..d810043b56b6 100644
--- a/Documentation/devicetree/bindings/gpio/atmel,at91rm9200-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/atmel,at91rm9200-gpio.yaml
@@ -69,13 +69,13 @@ examples:
     #include <dt-bindings/interrupt-controller/irq.h>
 
     gpio@fffff400 {
-            compatible = "atmel,at91rm9200-gpio";
-            reg = <0xfffff400 0x200>;
-            interrupts = <2 IRQ_TYPE_LEVEL_HIGH 1>;
-            #gpio-cells = <2>;
-            gpio-controller;
-            interrupt-controller;
-            #interrupt-cells = <2>;
-            clocks = <&pmc PMC_TYPE_PERIPHERAL 2>;
+        compatible = "atmel,at91rm9200-gpio";
+        reg = <0xfffff400 0x200>;
+        interrupts = <2 IRQ_TYPE_LEVEL_HIGH 1>;
+        #gpio-cells = <2>;
+        gpio-controller;
+        interrupt-controller;
+        #interrupt-cells = <2>;
+        clocks = <&pmc PMC_TYPE_PERIPHERAL 2>;
     };
 ...
diff --git a/Documentation/devicetree/bindings/gpio/blaize,blzp1600-gpio.yaml b/Documentation/devicetree/bindings/gpio/blaize,blzp1600-gpio.yaml
new file mode 100644
index 000000000000..a05f6ea619c3
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/blaize,blzp1600-gpio.yaml
@@ -0,0 +1,77 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/blaize,blzp1600-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Blaize BLZP1600 GPIO controller
+
+description:
+  Blaize BLZP1600 GPIO controller is an implementation of the VeriSilicon
+  APB GPIO v0.2 IP block. It has 32 ports each of which are intended to be
+  represented as child nodes with the generic GPIO-controller properties
+  as described in this binding's file.
+
+maintainers:
+  - Nikolaos Pasaloukos <nikolaos.pasaloukos@blaize.com>
+  - James Cowgill <james.cowgill@blaize.com>
+  - Matt Redfearn <matt.redfearn@blaize.com>
+  - Neil Jones <neil.jones@blaize.com>
+
+properties:
+  $nodename:
+    pattern: "^gpio@[0-9a-f]+$"
+
+  compatible:
+    enum:
+      - blaize,blzp1600-gpio
+
+  reg:
+    maxItems: 1
+
+  gpio-controller: true
+
+  '#gpio-cells':
+    const: 2
+
+  ngpios:
+    default: 32
+    minimum: 1
+    maximum: 32
+
+  interrupts:
+    maxItems: 1
+
+  gpio-line-names: true
+
+  interrupt-controller: true
+
+  '#interrupt-cells':
+    const: 2
+
+required:
+  - compatible
+  - reg
+  - gpio-controller
+  - '#gpio-cells'
+
+dependencies:
+  interrupt-controller: [ interrupts ]
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    gpio: gpio@4c0000 {
+      compatible = "blaize,blzp1600-gpio";
+      reg = <0x004c0000 0x1000>;
+      gpio-controller;
+      #gpio-cells = <2>;
+      ngpios = <32>;
+      interrupt-controller;
+      #interrupt-cells = <2>;
+      interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+    };
+...
diff --git a/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml b/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml
index 0e5c22929bde..ab35bcf98101 100644
--- a/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml
+++ b/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml
@@ -71,15 +71,15 @@ unevaluatedProperties: false
 examples:
   - |
     spi {
-            #address-cells = <1>;
-            #size-cells = <0>;
-
-            gpio5: gpio5@0 {
-                    compatible = "fairchild,74hc595";
-                    reg = <0>;
-                    gpio-controller;
-                    #gpio-cells = <2>;
-                    registers-number = <4>;
-                    spi-max-frequency = <100000>;
-            };
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        gpio5@0 {
+            compatible = "fairchild,74hc595";
+            reg = <0>;
+            gpio-controller;
+            #gpio-cells = <2>;
+            registers-number = <4>;
+            spi-max-frequency = <100000>;
+        };
     };
diff --git a/Documentation/devicetree/bindings/gpio/gpio-mxs.yaml b/Documentation/devicetree/bindings/gpio/gpio-mxs.yaml
index 8ff54369d16c..b58e08c8ecd8 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-mxs.yaml
+++ b/Documentation/devicetree/bindings/gpio/gpio-mxs.yaml
@@ -84,52 +84,52 @@ examples:
         reg = <0x80018000 0x2000>;
 
         gpio@0 {
-                compatible = "fsl,imx28-gpio";
-                reg = <0>;
-                interrupts = <127>;
-                gpio-controller;
-                #gpio-cells = <2>;
-                interrupt-controller;
-                #interrupt-cells = <2>;
+            compatible = "fsl,imx28-gpio";
+            reg = <0>;
+            interrupts = <127>;
+            gpio-controller;
+            #gpio-cells = <2>;
+            interrupt-controller;
+            #interrupt-cells = <2>;
         };
 
         gpio@1 {
-                compatible = "fsl,imx28-gpio";
-                reg = <1>;
-                interrupts = <126>;
-                gpio-controller;
-                #gpio-cells = <2>;
-                interrupt-controller;
-                #interrupt-cells = <2>;
+            compatible = "fsl,imx28-gpio";
+            reg = <1>;
+            interrupts = <126>;
+            gpio-controller;
+            #gpio-cells = <2>;
+            interrupt-controller;
+            #interrupt-cells = <2>;
         };
 
         gpio@2 {
-                compatible = "fsl,imx28-gpio";
-                reg = <2>;
-                interrupts = <125>;
-                gpio-controller;
-                #gpio-cells = <2>;
-                interrupt-controller;
-                #interrupt-cells = <2>;
+            compatible = "fsl,imx28-gpio";
+            reg = <2>;
+            interrupts = <125>;
+            gpio-controller;
+            #gpio-cells = <2>;
+            interrupt-controller;
+            #interrupt-cells = <2>;
         };
 
         gpio@3 {
-                compatible = "fsl,imx28-gpio";
-                reg = <3>;
-                interrupts = <124>;
-                gpio-controller;
-                #gpio-cells = <2>;
-                interrupt-controller;
-                #interrupt-cells = <2>;
+            compatible = "fsl,imx28-gpio";
+            reg = <3>;
+            interrupts = <124>;
+            gpio-controller;
+            #gpio-cells = <2>;
+            interrupt-controller;
+            #interrupt-cells = <2>;
         };
 
         gpio@4 {
-                compatible = "fsl,imx28-gpio";
-                reg = <4>;
-                interrupts = <123>;
-                gpio-controller;
-                #gpio-cells = <2>;
-                interrupt-controller;
-                #interrupt-cells = <2>;
+            compatible = "fsl,imx28-gpio";
+            reg = <4>;
+            interrupts = <123>;
+            gpio-controller;
+            #gpio-cells = <2>;
+            interrupt-controller;
+            #interrupt-cells = <2>;
         };
     };
diff --git a/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml b/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
index 7b1eb08fa055..4d3f52f8d1b8 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
+++ b/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
@@ -17,6 +17,9 @@ properties:
   compatible:
     oneOf:
       - items:
+          - const: toradex,ecgpiol16
+          - const: nxp,pcal6416
+      - items:
           - const: diodes,pi4ioe5v6534q
           - const: nxp,pcal6534
       - items:
@@ -132,6 +135,7 @@ allOf:
               - maxim,max7325
               - maxim,max7326
               - maxim,max7327
+              - toradex,ecgpiol16
     then:
       properties:
         reset-gpios: false
diff --git a/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml b/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml
index 4fb32e9aec0a..a31f64b6d40b 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml
+++ b/Documentation/devicetree/bindings/gpio/gpio-vf610.yaml
@@ -70,6 +70,13 @@ properties:
     minItems: 1
     maxItems: 4
 
+  gpio-reserved-ranges: true
+
+  ngpios:
+    minimum: 1
+    maximum: 32
+    default: 32
+
 patternProperties:
   "^.+-hog(-[0-9]+)?$":
     type: object
diff --git a/Documentation/devicetree/bindings/gpio/maxim,max77759-gpio.yaml b/Documentation/devicetree/bindings/gpio/maxim,max77759-gpio.yaml
new file mode 100644
index 000000000000..55734190d5eb
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/maxim,max77759-gpio.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/maxim,max77759-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim Integrated MAX77759 GPIO
+
+maintainers:
+  - André Draszik <andre.draszik@linaro.org>
+
+description: |
+  This module is part of the MAX77759 PMIC. For additional information, see
+  Documentation/devicetree/bindings/mfd/maxim,max77759.yaml.
+
+  The MAX77759 is a PMIC integrating, amongst others, a GPIO controller
+  including interrupt support for 2 GPIO lines.
+
+properties:
+  compatible:
+    const: maxim,max77759-gpio
+
+  "#gpio-cells":
+    const: 2
+
+  gpio-controller: true
+
+  gpio-line-names:
+    minItems: 1
+    maxItems: 2
+
+  "#interrupt-cells":
+    const: 2
+
+  interrupt-controller: true
+
+required:
+  - compatible
+  - "#gpio-cells"
+  - gpio-controller
+  - "#interrupt-cells"
+  - interrupt-controller
+
+additionalProperties: false
diff --git a/Documentation/devicetree/bindings/gpio/nvidia,tegra186-gpio.yaml b/Documentation/devicetree/bindings/gpio/nvidia,tegra186-gpio.yaml
index 4ef06b2ff1ff..065f5761a93f 100644
--- a/Documentation/devicetree/bindings/gpio/nvidia,tegra186-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/nvidia,tegra186-gpio.yaml
@@ -111,6 +111,9 @@ properties:
 
   gpio-controller: true
 
+  gpio-ranges:
+    maxItems: 1
+
   "#gpio-cells":
     description: |
       Indicates how many cells are used in a consumer's GPIO specifier. In the
diff --git a/Documentation/devicetree/bindings/gpio/nxp,pcf8575.yaml b/Documentation/devicetree/bindings/gpio/nxp,pcf8575.yaml
index 8bca574bb66d..5a6ecaa7b44b 100644
--- a/Documentation/devicetree/bindings/gpio/nxp,pcf8575.yaml
+++ b/Documentation/devicetree/bindings/gpio/nxp,pcf8575.yaml
@@ -128,17 +128,17 @@ additionalProperties: false
 examples:
   - |
     i2c {
-            #address-cells = <1>;
-            #size-cells = <0>;
-
-            pcf8575: gpio@20 {
-                    compatible = "nxp,pcf8575";
-                    reg = <0x20>;
-                    interrupt-parent = <&irqpin2>;
-                    interrupts = <3 0>;
-                    gpio-controller;
-                    #gpio-cells = <2>;
-                    interrupt-controller;
-                    #interrupt-cells = <2>;
-            };
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        gpio@20 {
+            compatible = "nxp,pcf8575";
+            reg = <0x20>;
+            interrupt-parent = <&irqpin2>;
+            interrupts = <3 0>;
+            gpio-controller;
+            #gpio-cells = <2>;
+            interrupt-controller;
+            #interrupt-cells = <2>;
+        };
     };
diff --git a/Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml b/Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml
index 39fd959c45d2..728099c65824 100644
--- a/Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml
@@ -81,7 +81,7 @@ dependencies:
 
 examples:
   - |
-      gpio@3500 {
+    gpio@3500 {
         compatible = "realtek,rtl8380-gpio", "realtek,otto-gpio";
         reg = <0x3500 0x1c>;
         gpio-controller;
@@ -91,9 +91,9 @@ examples:
         #interrupt-cells = <2>;
         interrupt-parent = <&rtlintc>;
         interrupts = <23>;
-      };
+    };
   - |
-      gpio@3300 {
+    gpio@3300 {
         compatible = "realtek,rtl9300-gpio", "realtek,otto-gpio";
         reg = <0x3300 0x1c>, <0x3338 0x8>;
         gpio-controller;
@@ -103,6 +103,6 @@ examples:
         #interrupt-cells = <2>;
         interrupt-parent = <&rtlintc>;
         interrupts = <13>;
-      };
+    };
 
 ...
diff --git a/Documentation/devicetree/bindings/gpio/renesas,em-gio.yaml b/Documentation/devicetree/bindings/gpio/renesas,em-gio.yaml
index 8bdef812c87c..49fb8f613ead 100644
--- a/Documentation/devicetree/bindings/gpio/renesas,em-gio.yaml
+++ b/Documentation/devicetree/bindings/gpio/renesas,em-gio.yaml
@@ -57,14 +57,14 @@ examples:
   - |
     #include <dt-bindings/interrupt-controller/arm-gic.h>
     gpio0: gpio@e0050000 {
-            compatible = "renesas,em-gio";
-            reg = <0xe0050000 0x2c>, <0xe0050040 0x20>;
-            interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
-                         <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
-            gpio-controller;
-            #gpio-cells = <2>;
-            gpio-ranges = <&pfc 0 0 32>;
-            ngpios = <32>;
-            interrupt-controller;
-            #interrupt-cells = <2>;
+        compatible = "renesas,em-gio";
+        reg = <0xe0050000 0x2c>, <0xe0050040 0x20>;
+        interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
+        gpio-controller;
+        #gpio-cells = <2>;
+        gpio-ranges = <&pfc 0 0 32>;
+        ngpios = <32>;
+        interrupt-controller;
+        #interrupt-cells = <2>;
     };
diff --git a/Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml b/Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml
index cc7a950a6030..d32e103a64aa 100644
--- a/Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml
@@ -138,16 +138,16 @@ examples:
     #include <dt-bindings/interrupt-controller/arm-gic.h>
     #include <dt-bindings/power/r8a77470-sysc.h>
     gpio3: gpio@e6053000 {
-            compatible = "renesas,gpio-r8a77470", "renesas,rcar-gen2-gpio";
-            reg = <0xe6053000 0x50>;
-            interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
-            clocks = <&cpg CPG_MOD 909>;
-            power-domains = <&sysc R8A77470_PD_ALWAYS_ON>;
-            resets = <&cpg 909>;
-            gpio-controller;
-            #gpio-cells = <2>;
-            gpio-ranges = <&pfc 0 96 30>;
-            gpio-reserved-ranges = <17 10>;
-            interrupt-controller;
-            #interrupt-cells = <2>;
+        compatible = "renesas,gpio-r8a77470", "renesas,rcar-gen2-gpio";
+        reg = <0xe6053000 0x50>;
+        interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&cpg CPG_MOD 909>;
+        power-domains = <&sysc R8A77470_PD_ALWAYS_ON>;
+        resets = <&cpg 909>;
+        gpio-controller;
+        #gpio-cells = <2>;
+        gpio-ranges = <&pfc 0 96 30>;
+        gpio-reserved-ranges = <17 10>;
+        interrupt-controller;
+        #interrupt-cells = <2>;
      };
diff --git a/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml b/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml
index fc095646adea..4bdc201b719e 100644
--- a/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/sifive,gpio.yaml
@@ -76,8 +76,8 @@ additionalProperties: false
 
 examples:
   - |
-      #include <dt-bindings/clock/sifive-fu540-prci.h>
-      gpio@10060000 {
+    #include <dt-bindings/clock/sifive-fu540-prci.h>
+    gpio@10060000 {
         compatible = "sifive,fu540-c000-gpio", "sifive,gpio0";
         interrupt-parent = <&plic>;
         interrupts = <7>, <8>, <9>, <10>, <11>, <12>, <13>, <14>, <15>, <16>,
@@ -88,6 +88,6 @@ examples:
         #gpio-cells = <2>;
         interrupt-controller;
         #interrupt-cells = <2>;
-      };
+    };
 
 ...
diff --git a/Documentation/devicetree/bindings/gpio/spacemit,k1-gpio.yaml b/Documentation/devicetree/bindings/gpio/spacemit,k1-gpio.yaml
new file mode 100644
index 000000000000..ec0232e72c71
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/spacemit,k1-gpio.yaml
@@ -0,0 +1,96 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/spacemit,k1-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SpacemiT K1 GPIO controller
+
+maintainers:
+  - Yixun Lan <dlan@gentoo.org>
+
+description:
+  The controller's registers are organized as sets of eight 32-bit
+  registers with each set of port controlling 32 pins.  A single
+  interrupt line is shared for all of the pins by the controller.
+
+properties:
+  $nodename:
+    pattern: "^gpio@[0-9a-f]+$"
+
+  compatible:
+    const: spacemit,k1-gpio
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: GPIO Core Clock
+      - description: GPIO Bus Clock
+
+  clock-names:
+    items:
+      - const: core
+      - const: bus
+
+  resets:
+    maxItems: 1
+
+  gpio-controller: true
+
+  "#gpio-cells":
+    const: 3
+    description:
+      The first two cells are the GPIO bank index and offset inside the bank,
+      the third cell should specify GPIO flag.
+
+  gpio-ranges: true
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  "#interrupt-cells":
+    const: 3
+    description:
+      The first two cells are the GPIO bank index and offset inside the bank,
+      the third cell should specify interrupt flag. The controller does not
+      support level interrupts, so flags of IRQ_TYPE_LEVEL_HIGH,
+      IRQ_TYPE_LEVEL_LOW should not be used.
+      Refer <dt-bindings/interrupt-controller/irq.h> for valid flags.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - gpio-controller
+  - "#gpio-cells"
+  - interrupts
+  - interrupt-controller
+  - "#interrupt-cells"
+  - gpio-ranges
+
+additionalProperties: false
+
+examples:
+  - |
+    gpio@d4019000 {
+      compatible = "spacemit,k1-gpio";
+      reg = <0xd4019000 0x800>;
+      clocks =<&ccu 9>, <&ccu 61>;
+      clock-names = "core", "bus";
+      gpio-controller;
+      #gpio-cells = <3>;
+      interrupts = <58>;
+      interrupt-controller;
+      interrupt-parent = <&plic>;
+      #interrupt-cells = <3>;
+      gpio-ranges = <&pinctrl 0 0 0 32>,
+                    <&pinctrl 1 0 32 32>,
+                    <&pinctrl 2 0 64 32>,
+                    <&pinctrl 3 0 96 32>;
+    };
+...
diff --git a/Documentation/devicetree/bindings/gpio/toshiba,gpio-visconti.yaml b/Documentation/devicetree/bindings/gpio/toshiba,gpio-visconti.yaml
index b085450b527f..712063417bc8 100644
--- a/Documentation/devicetree/bindings/gpio/toshiba,gpio-visconti.yaml
+++ b/Documentation/devicetree/bindings/gpio/toshiba,gpio-visconti.yaml
@@ -48,22 +48,22 @@ additionalProperties: false
 
 examples:
   - |
-      #include <dt-bindings/interrupt-controller/irq.h>
-      #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
 
-      soc {
+    soc {
         #address-cells = <2>;
         #size-cells = <2>;
 
         gpio: gpio@28020000 {
-          compatible = "toshiba,gpio-tmpv7708";
-          reg = <0 0x28020000 0 0x1000>;
-          #gpio-cells = <0x2>;
-          gpio-ranges = <&pmux 0 0 32>;
-          gpio-controller;
-          interrupt-controller;
-          #interrupt-cells = <2>;
-          interrupt-parent = <&gic>;
+            compatible = "toshiba,gpio-tmpv7708";
+            reg = <0 0x28020000 0 0x1000>;
+            #gpio-cells = <0x2>;
+            gpio-ranges = <&pmux 0 0 32>;
+            gpio-controller;
+            interrupt-controller;
+            #interrupt-cells = <2>;
+            interrupt-parent = <&gic>;
         };
-      };
+    };
 ...
diff --git a/Documentation/devicetree/bindings/gpio/xlnx,gpio-xilinx.yaml b/Documentation/devicetree/bindings/gpio/xlnx,gpio-xilinx.yaml
index d3d8a2e143ed..8fbf12ca067e 100644
--- a/Documentation/devicetree/bindings/gpio/xlnx,gpio-xilinx.yaml
+++ b/Documentation/devicetree/bindings/gpio/xlnx,gpio-xilinx.yaml
@@ -126,29 +126,29 @@ examples:
   - |
     #include <dt-bindings/interrupt-controller/arm-gic.h>
 
-        gpio@a0020000 {
-            compatible = "xlnx,xps-gpio-1.00.a";
-            reg = <0xa0020000 0x10000>;
-            #gpio-cells = <2>;
-            #interrupt-cells = <0x2>;
-            clocks = <&zynqmp_clk 71>;
-            gpio-controller;
-            interrupt-controller;
-            interrupt-names = "ip2intc_irpt";
-            interrupt-parent = <&gic>;
-            interrupts = <0 89 4>;
-            xlnx,all-inputs = <0x0>;
-            xlnx,all-inputs-2 = <0x0>;
-            xlnx,all-outputs = <0x0>;
-            xlnx,all-outputs-2 = <0x0>;
-            xlnx,dout-default = <0x0>;
-            xlnx,dout-default-2 = <0x0>;
-            xlnx,gpio-width = <0x20>;
-            xlnx,gpio2-width = <0x20>;
-            xlnx,interrupt-present = <0x1>;
-            xlnx,is-dual = <0x1>;
-            xlnx,tri-default = <0xFFFFFFFF>;
-            xlnx,tri-default-2 = <0xFFFFFFFF>;
-        };
+    gpio@a0020000 {
+        compatible = "xlnx,xps-gpio-1.00.a";
+        reg = <0xa0020000 0x10000>;
+        #gpio-cells = <2>;
+        #interrupt-cells = <0x2>;
+        clocks = <&zynqmp_clk 71>;
+        gpio-controller;
+        interrupt-controller;
+        interrupt-names = "ip2intc_irpt";
+        interrupt-parent = <&gic>;
+        interrupts = <0 89 4>;
+        xlnx,all-inputs = <0x0>;
+        xlnx,all-inputs-2 = <0x0>;
+        xlnx,all-outputs = <0x0>;
+        xlnx,all-outputs-2 = <0x0>;
+        xlnx,dout-default = <0x0>;
+        xlnx,dout-default-2 = <0x0>;
+        xlnx,gpio-width = <0x20>;
+        xlnx,gpio2-width = <0x20>;
+        xlnx,interrupt-present = <0x1>;
+        xlnx,is-dual = <0x1>;
+        xlnx,tri-default = <0xFFFFFFFF>;
+        xlnx,tri-default-2 = <0xFFFFFFFF>;
+    };
 
 ...
diff --git a/Documentation/devicetree/bindings/mfd/maxim,max77759.yaml b/Documentation/devicetree/bindings/mfd/maxim,max77759.yaml
new file mode 100644
index 000000000000..525de9ab3c2b
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/maxim,max77759.yaml
@@ -0,0 +1,99 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mfd/maxim,max77759.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim Integrated MAX77759 PMIC for USB Type-C applications
+
+maintainers:
+  - André Draszik <andre.draszik@linaro.org>
+
+description: |
+  This is a part of device tree bindings for the MAX77759 companion Power
+  Management IC for USB Type-C applications.
+
+  The MAX77759 includes Battery Charger, Fuel Gauge, temperature sensors, USB
+  Type-C Port Controller (TCPC), NVMEM, and a GPIO expander.
+
+properties:
+  compatible:
+    const: maxim,max77759
+
+  interrupts:
+    maxItems: 1
+
+  interrupt-controller: true
+
+  "#interrupt-cells":
+    const: 2
+
+  reg:
+    maxItems: 1
+
+  gpio:
+    $ref: /schemas/gpio/maxim,max77759-gpio.yaml
+
+  nvmem-0:
+    $ref: /schemas/nvmem/maxim,max77759-nvmem.yaml
+
+required:
+  - compatible
+  - interrupts
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        pmic@66 {
+            compatible = "maxim,max77759";
+            reg = <0x66>;
+            interrupts-extended = <&gpa8 3 IRQ_TYPE_LEVEL_LOW>;
+
+            interrupt-controller;
+            #interrupt-cells = <2>;
+
+            gpio {
+                compatible = "maxim,max77759-gpio";
+
+                gpio-controller;
+                #gpio-cells = <2>;
+
+                interrupt-controller;
+                #interrupt-cells = <2>;
+            };
+
+            nvmem-0 {
+                compatible = "maxim,max77759-nvmem";
+
+                nvmem-layout {
+                    compatible = "fixed-layout";
+                    #address-cells = <1>;
+                    #size-cells = <1>;
+
+                    reboot-mode@0 {
+                        reg = <0x0 0x4>;
+                    };
+
+                    boot-reason@4 {
+                        reg = <0x4 0x4>;
+                    };
+
+                    shutdown-user-flag@8 {
+                        reg = <0x8 0x1>;
+                    };
+
+                    rsoc@10 {
+                        reg = <0xa 0x2>;
+                    };
+                };
+            };
+        };
+    };
diff --git a/Documentation/devicetree/bindings/nvmem/maxim,max77759-nvmem.yaml b/Documentation/devicetree/bindings/nvmem/maxim,max77759-nvmem.yaml
new file mode 100644
index 000000000000..1e3bd4433007
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/maxim,max77759-nvmem.yaml
@@ -0,0 +1,32 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/maxim,max77759-nvmem.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Maxim Integrated MAX77759 Non Volatile Memory
+
+maintainers:
+  - André Draszik <andre.draszik@linaro.org>
+
+description: |
+  This module is part of the MAX77759 PMIC. For additional information, see
+  Documentation/devicetree/bindings/mfd/maxim,max77759.yaml.
+
+  The MAX77759 is a PMIC integrating, amongst others, Non Volatile Memory
+  (NVMEM) with 30 bytes of storage which can be used by software to store
+  information or communicate with a boot loader.
+
+properties:
+  compatible:
+    const: maxim,max77759-nvmem
+
+  wp-gpios: false
+
+required:
+  - compatible
+
+allOf:
+  - $ref: nvmem.yaml#
+
+unevaluatedProperties: false
diff --git a/Documentation/driver-api/gpio/index.rst b/Documentation/driver-api/gpio/index.rst
index 34b57cee3391..43f6a3afe10b 100644
--- a/Documentation/driver-api/gpio/index.rst
+++ b/Documentation/driver-api/gpio/index.rst
@@ -27,7 +27,7 @@ Core
 ACPI support
 ============
 
-.. kernel-doc:: drivers/gpio/gpiolib-acpi.c
+.. kernel-doc:: drivers/gpio/gpiolib-acpi-core.c
    :export:
 
 Device tree support
diff --git a/Documentation/translations/zh_CN/driver-api/gpio/index.rst b/Documentation/translations/zh_CN/driver-api/gpio/index.rst
index e4d54724a1b5..f64a69f771ca 100644
--- a/Documentation/translations/zh_CN/driver-api/gpio/index.rst
+++ b/Documentation/translations/zh_CN/driver-api/gpio/index.rst
@@ -42,7 +42,7 @@ ACPI支持
 
 该API在以下内核代码中:
 
-drivers/gpio/gpiolib-acpi.c
+drivers/gpio/gpiolib-acpi-core.c
 
 设备树支持
 ==========