Merge tag 'gpio-updates-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio updates from Bartosz Golaszewski:
 "We have lots of small changes all over the place, but no huge reworks
  or new drivers:

   - use ioread()/iowrite() interfaces instead of raw inb()/outb() in
     drivers

   - make irqchips immutable due to the new warning popping up when
     drivers try to modify the irqchip structures

   - add new compatibles to dt-bindings for realtek-otto, renesas-rcar
     and pca95xx

   - add support for new models to gpio-rcar, gpio-pca953x &
     gpio-realtek-otto

   - allow parsing of GPIO hogs represented as children nodes of
     gpio-uniphier

   - define a set of common GPIO consumer strings in dt-bindings

   - shrink code in gpio-ml-ioh by using more devres interfaces

   - pass arguments to devm_kcalloc() in correct order in gpio-sim

   - add new helpers for iterating over GPIO firmware nodes and
     descriptors to gpiolib core and use it in several drivers

   - drop unused syscon_regmap_lookup_by_compatible() function

   - correct format specifiers and signedness of variables in GPIO ACPI

   - drop unneeded error checks in gpio-ftgpio

   - stop using the deprecated of_gpio.h header in gpio-zevio

   - drop platform_data support in gpio-max732x

   - simplify Kconfig dependencies in gpio-vf610

   - use raw spinlocks where needed to make PREEMPT_RT happy

   - fix return values in board files using gpio-pcf857x

   - convert more drivers to using fwnode instead of of_node

   - minor fixes and improvements in gpiolib core"

* tag 'gpio-updates-for-v5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (55 commits)
  gpio: sifive: Make the irqchip immutable
  gpio: rcar: Make the irqchip immutable
  gpio: pcf857x: Make the irqchip immutable
  gpio: pca953x: Make the irqchip immutable
  gpio: dwapb: Make the irqchip immutable
  gpio: sim: Use correct order for the parameters of devm_kcalloc()
  gpio: ml-ioh: Convert to use managed functions pcim* and devm_*
  gpio: ftgpio: Remove unneeded ERROR check before clk_disable_unprepare
  gpio: ws16c48: Utilize iomap interface
  gpio: gpio-mm: Utilize iomap interface
  gpio: 104-idio-16: Utilize iomap interface
  gpio: 104-idi-48: Utilize iomap interface
  gpio: 104-dio-48e: Utilize iomap interface
  gpio: zevio: drop of_gpio.h header
  gpio: max77620: Make the irqchip immutable
  dt-bindings: gpio: pca95xx: add entry for pca6408
  gpio: pca953xx: Add support for pca6408
  gpio: max732x: Drop unused support for irq and setup code via platform data
  gpio: vf610: drop the SOC_VF610 dependency for GPIO_VF610
  gpio: syscon: Remove usage of syscon_regmap_lookup_by_compatible
  ...

5 files changed, 119 insertions, 2 deletions

diff --git a/Documentation/devicetree/bindings/gpio/gpio-consumer-common.yaml b/Documentation/devicetree/bindings/gpio/gpio-consumer-common.yaml
new file mode 100644
index 000000000000..40d0be31e200
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-consumer-common.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/gpio-consumer-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Common GPIO lines
+
+maintainers:
+  - Bartosz Golaszewski <brgl@bgdev.pl>
+  - Linus Walleij <linus.walleij@linaro.org>
+
+description:
+  Pay attention to using proper GPIO flag (e.g. GPIO_ACTIVE_LOW) for the GPIOs
+  using inverted signal (e.g. RESETN).
+
+select: true
+
+properties:
+  enable-gpios:
+    maxItems: 1
+    description:
+      GPIO connected to the enable control pin.
+
+  reset-gpios:
+    description:
+      GPIO (or GPIOs for power sequence) connected to the device reset pin
+      (e.g. RESET or RESETN).
+
+  powerdown-gpios:
+    maxItems: 1
+    description:
+      GPIO connected to the power down pin (hardware power down or power cut,
+      e.g. PD or PWDN).
+
+  pwdn-gpios:
+    maxItems: 1
+    description: Use powerdown-gpios
+    deprecated: true
+
+  wakeup-gpios:
+    maxItems: 1
+    description:
+      GPIO connected to the pin waking up the device from suspend or other
+      power-saving modes.
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mmc-pwrseq-simple
+    then:
+      properties:
+        reset-gpios:
+          minItems: 1
+          maxItems: 32
+    else:
+      properties:
+        reset-gpios:
+          maxItems: 1
+
+additionalProperties: true
diff --git a/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml b/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
index dc0fc8fc4839..977b14db09b0 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
+++ b/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
@@ -30,6 +30,7 @@ properties:
       - maxim,max7325
       - maxim,max7326
       - maxim,max7327
+      - nxp,pca6408
       - nxp,pca6416
       - nxp,pca9505
       - nxp,pca9506
diff --git a/Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml b/Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml
index 100f20cebd76..39fd959c45d2 100644
--- a/Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/realtek,otto-gpio.yaml
@@ -28,10 +28,11 @@ properties:
       - enum:
           - realtek,rtl8380-gpio
           - realtek,rtl8390-gpio
+          - realtek,rtl9300-gpio
+          - realtek,rtl9310-gpio
       - const: realtek,otto-gpio
 
-  reg:
-    maxItems: 1
+  reg: true
 
   "#gpio-cells":
     const: 2
@@ -50,6 +51,23 @@ properties:
   interrupts:
     maxItems: 1
 
+if:
+  properties:
+    compatible:
+      contains:
+        const: realtek,rtl9300-gpio
+then:
+  properties:
+    reg:
+      items:
+        - description: GPIO and interrupt control
+        - description: interrupt CPU map
+else:
+  properties:
+    reg:
+      items:
+        - description: GPIO and interrupt control
+
 required:
   - compatible
   - reg
@@ -74,5 +92,17 @@ examples:
         interrupt-parent = <&rtlintc>;
         interrupts = <23>;
       };
+  - |
+      gpio@3300 {
+        compatible = "realtek,rtl9300-gpio", "realtek,otto-gpio";
+        reg = <0x3300 0x1c>, <0x3338 0x8>;
+        gpio-controller;
+        #gpio-cells = <2>;
+        ngpios = <24>;
+        interrupt-controller;
+        #interrupt-cells = <2>;
+        interrupt-parent = <&rtlintc>;
+        interrupts = <13>;
+      };
 
 ...
diff --git a/Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml b/Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml
index f2541739ee3b..0681a4790cd6 100644
--- a/Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/renesas,rcar-gpio.yaml
@@ -51,6 +51,11 @@ properties:
       - items:
           - const: renesas,gpio-r8a779a0  # R-Car V3U
 
+      - items:
+          - enum:
+              - renesas,gpio-r8a779f0     # R-Car S4-8
+          - const: renesas,rcar-gen4-gpio # R-Car Gen4
+
   reg:
     maxItems: 1
 
diff --git a/Documentation/devicetree/bindings/gpio/socionext,uniphier-gpio.yaml b/Documentation/devicetree/bindings/gpio/socionext,uniphier-gpio.yaml
index bcafa494ed7a..228fa27ffdc3 100644
--- a/Documentation/devicetree/bindings/gpio/socionext,uniphier-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/socionext,uniphier-gpio.yaml
@@ -52,6 +52,23 @@ properties:
       <child-interrupt-base parent-interrupt-base length> triplets.
     $ref: /schemas/types.yaml#/definitions/uint32-matrix
 
+patternProperties:
+  "^.+-hog(-[0-9]+)?$":
+    type: object
+    properties:
+      gpio-hog: true
+      gpios: true
+      input: true
+      output-high: true
+      output-low: true
+      line-name: true
+
+    required:
+      - gpio-hog
+      - gpios
+
+    additionalProperties: false
+
 required:
   - compatible
   - reg