Merge tag 'gpio-v5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO updates from Linus Walleij:
 "This is the bulk of the GPIO changes for the v5.11 kernel cycle:

  Core changes:

   - Retired the old set-up function for GPIO IRQ chips. All chips now
     use the template struct gpio_irq_chip and pass that to the core to
     be set up alongside the gpio_chip. We can finally get rid of the
     old cruft.

   - Some refactoring and clean up of the core code.

   - Support edge event timestamps to be stamped using REALTIME (wall
     clock) timestamps. We have found solid use cases for this, so we
     support it.

  New drivers:

   - MStar MSC313 GPIO driver.

   - HiSilicon GPIO driver.

  Driver improvements:

   - The PCA953x driver now also supports the NXP PCAL9554B/C chips.

   - The mockup driver can now be probed from the device tree which is
     pretty useful for virtual prototyping of devices.

   - The Rcar driver now supports .get_multiple()

   - The MXC driver dropped some legacy and became a pure device tree
     client.

   - The Exar driver was moved over to the IDA interface for
     enumerating, and also switched over to using regmap for register
     access"

* tag 'gpio-v5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (87 commits)
  MAINTAINERS: Remove reference to non-existing file
  gpio: hisi: Do not require ACPI for COMPILE_TEST
  MAINTAINERS: Add maintainer for HiSilicon GPIO driver
  gpio: gpio-hisi: Add HiSilicon GPIO support
  gpio: cs5535: Simplify the return expression of cs5535_gpio_probe()
  gpiolib: irq hooks: fix recursion in gpiochip_irq_unmask
  dt-bindings: mt7621-gpio: convert bindings to YAML format
  gpiolib: cdev: Flag invalid GPIOs as used
  gpio: put virtual gpio device into their own submenu
  drivers: gpio: amd8111: use SPDX-License-Identifier
  drivers: gpio: amd8111: prefer dev_err()/dev_info() over raw printk
  drivers: gpio: bt8xx: prefer dev_err()/dev_warn() over of raw printk
  gpio: Add TODO item for debugfs interface
  gpio: just plain warning when nonexisting gpio requested
  tools: gpio: add option to report wall-clock time to gpio-event-mon
  tools: gpio: add support for reporting realtime event clock to lsgpio
  gpiolib: cdev: allow edge event timestamps to be configured as REALTIME
  gpio: msc313: MStar MSC313 GPIO driver
  dt-bindings: gpio: Binding for MStar MSC313 GPIO controller
  dt-bindings: gpio: Add a binding header for the MSC313 GPIO driver
  ...

1 files changed, 72 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/gpio/mediatek,mt7621-gpio.yaml b/Documentation/devicetree/bindings/gpio/mediatek,mt7621-gpio.yaml
new file mode 100644
index 000000000000..5bbb2a31266e
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/mediatek,mt7621-gpio.yaml
@@ -0,0 +1,72 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/mediatek,mt7621-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek MT7621 SoC GPIO controller
+
+maintainers:
+  - Sergio Paracuellos <sergio.paracuellos@gmail.com>
+
+description: |
+  The IP core used inside these SoCs has 3 banks of 32 GPIOs each.
+  The registers of all the banks are interwoven inside one single IO range.
+  We load one GPIO controller instance per bank. Also the GPIO controller can receive
+  interrupts on any of the GPIOs, either edge or level. It then interrupts the CPU
+  using GIC INT12.
+
+properties:
+  $nodename:
+    pattern: "^gpio@[0-9a-f]+$"
+
+  compatible:
+    const: mediatek,mt7621-gpio
+
+  reg:
+    maxItems: 1
+
+  "#gpio-cells":
+    const: 2
+
+  gpio-controller: true
+  gpio-ranges: true
+
+  interrupt-controller: true
+
+  "#interrupt-cells":
+    const: 2
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - "#gpio-cells"
+  - gpio-controller
+  - gpio-ranges
+  - interrupt-controller
+  - "#interrupt-cells"
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/mips-gic.h>
+
+    gpio@600 {
+      compatible = "mediatek,mt7621-gpio";
+      reg = <0x600 0x100>;
+      #gpio-cells = <2>;
+      gpio-controller;
+      gpio-ranges = <&pinctrl 0 0 95>;
+      interrupt-controller;
+      #interrupt-cells = <2>;
+      interrupt-parent = <&gic>;
+      interrupts = <GIC_SHARED 12 IRQ_TYPE_LEVEL_HIGH>;
+    };
+
+...