Merge tag 'gpio-updates-for-v6.6' of git://git.kernel.org/pub/scm/lin…

…ux/kernel/git/brgl/linux

Pull gpio updates from Bartosz Golaszewski:
 "We have a lot of code refactoring using common helpers and ended up
  removing more lines then we're adding this release cycle.

  Nothing really stands out, just small updates all over the place.

  Core GPIOLIB updates:
   - wake-up poll() in user-space on device unbind
   - improve fwnode usage
   - interrupt domain handling improvements
   - correctly handle the ngpios property in gpio-mmio

  Driver cleanups:
   - remove unneeded calls to platform_set_drvdata() all around the
     place
   - remove unneeded of_match_ptr() expansions whenever a driver depends
     on CONFIG_OF
   - remove redundant calls to dev_err_probe() from gpio-omap and
     gpio-davinci

  Driver improvements:
   - use autopointers and guards from cleanup.h in gpio-sim
   - shrink code in gpio-sim using some common helpers
   - convert the idio family of drivers to using gpio-regmap
   - convert gpio-ws16c48 to using gpio-regmap
   - use devres to simplify code in gpio-pisosr and gpio-mxc
   - update gpio-sifive: support IRQ wake, improve interrupt handling,
     allow building as module
   - make gpio-ge and gpio-bcm-kona OF-independent (plus some minor
     tweaks)
   - add support for new models in gpio-pca953x and gpio-ds4520
   - add runtime PM support to gpio-mxc
   - fix a build warning in gpio-mxs
   - add support for adding pin ranges to gpio-mlxbf3
   - add counter/timer support to gpio-104-dio-48e
   - switch to dynamic GPIO base allocation in gpio-vf610
   - minor oneliners here and there

  Device-tree bindings updates:
   - enable the gpio-line-names property in snps,dw-apb and STMPE GPIO
   - document new models in fsl-imx-gpio, ds4520 and pca95xx
   - convert the bindings for brcm,kona-gpio to YAML"

* tag 'gpio-updates-for-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (94 commits)
  gpio: pca953x: add support for TCA9538
  dt-bindings: gpio: pca95xx: document new tca9538 chip
  gpio: pca953x: Use i2c_get_match_data()
  gpio: mlxbf3: use capital "OR" for multiple licenses in SPDX
  gpio: pcf857x: Extend match data support for OF tables
  gpio: vf610: switch to dynamic allocat GPIO base
  gpiolib: provide and use gpiod_line_state_notify()
  gpio: cdev: wake up lineevent poll() on device unbind
  gpio: cdev: wake up linereq poll() on device unbind
  gpio: cdev: wake up chardev poll() on device unbind
  gpiolib: add a second blocking notifier to struct gpio_device
  gpio: cdev: open-code to_gpio_chardev_data()
  gpiolib: rename the gpio_device notifier
  gpio: mlxbf3: Support add_pin_ranges()
  gpio: mxc: Use helper function devm_clk_get_optional_enabled()
  gpio: pca9570: fix kerneldoc
  gpio: sim: simplify code with cleanup helpers
  gpio: sim: replace memmove() + strstrip() with skip_spaces() + strim()
  gpio: sim: simplify gpio_sim_device_config_live_store()
  gpio: mxc: release the parent IRQ in runtime suspend
  ...

Documentation/devicetree/bindings/gpio/adi,ds4520-gpio.yaml

@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/adi,ds4520-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: DS4520 I2C GPIO expander
+
+maintainers:
+  - Okan Sahin <okan.sahin@analog.com>
+
+properties:
+  compatible:
+    enum:
+      - adi,ds4520-gpio
+
+  reg:
+    maxItems: 1
+
+  gpio-controller: true
+
+  "#gpio-cells":
+    const: 2
+
+  ngpios:
+    minimum: 1
+    maximum: 9
+
+required:
+  - compatible
+  - reg
+  - gpio-controller
+  - "#gpio-cells"
+  - ngpios
+
+additionalProperties: false
+
+examples:
+  - |
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        gpio@50 {
+            compatible = "adi,ds4520-gpio";
+            reg = <0x50>;
+            ngpios = <9>;
+            gpio-controller;
+            #gpio-cells = <2>;
+        };
+    };

Documentation/devicetree/bindings/gpio/brcm,kona-gpio.yaml

@@ -0,0 +1,100 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/brcm,kona-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom Kona family GPIO controller
+
+description:
+  The Broadcom GPIO Controller IP can be configured prior to synthesis to
+  support up to 8 banks of 32 GPIOs where each bank has its own IRQ. The
+  GPIO controller only supports edge, not level, triggering of interrupts.
+
+maintainers:
+  - Ray Jui <rjui@broadcom.com>
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - brcm,bcm11351-gpio
+          - brcm,bcm21664-gpio
+          - brcm,bcm23550-gpio
+      - const: brcm,kona-gpio
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    minItems: 4
+    maxItems: 6
+    description:
+      The interrupt outputs from the controller. There is one GPIO interrupt
+      per GPIO bank. The number of interrupts listed depends on the number of
+      GPIO banks on the SoC. The interrupts must be ordered by bank, starting
+      with bank 0. There is always a 1:1 mapping between banks and IRQs.
+
+  '#gpio-cells':
+    const: 2
+
+  '#interrupt-cells':
+    const: 2
+
+  gpio-controller: true
+
+  interrupt-controller: true
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - '#gpio-cells'
+  - '#interrupt-cells'
+  - gpio-controller
+  - interrupt-controller
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: brcm,bcm11351-gpio
+    then:
+      properties:
+        interrupts:
+          minItems: 6
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - brcm,bcm21664-gpio
+              - brcm,bcm23550-gpio
+    then:
+      properties:
+        interrupts:
+          maxItems: 4
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    gpio@35003000 {
+        compatible = "brcm,bcm11351-gpio", "brcm,kona-gpio";
+        reg = <0x35003000 0x800>;
+        interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
+        #gpio-cells = <2>;
+        #interrupt-cells = <2>;
+        gpio-controller;
+        interrupt-controller;
+    };
+...

Documentation/devicetree/bindings/gpio/fsl-imx-gpio.yaml

@@ -32,10 +32,12 @@ properties:
               - fsl,imx6sx-gpio
               - fsl,imx6ul-gpio
               - fsl,imx7d-gpio
+              - fsl,imx8dxl-gpio
               - fsl,imx8mm-gpio
               - fsl,imx8mn-gpio
               - fsl,imx8mp-gpio
               - fsl,imx8mq-gpio
+              - fsl,imx8qm-gpio
               - fsl,imx8qxp-gpio
               - fsl,imxrt1050-gpio
               - fsl,imxrt1170-gpio

Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml

@@ -66,6 +66,7 @@ properties:
               - ti,tca6408
               - ti,tca6416
               - ti,tca6424
+              - ti,tca9538
               - ti,tca9539
               - ti,tca9554
 

Documentation/devicetree/bindings/gpio/snps,dw-apb-gpio.yaml

@@ -61,6 +61,10 @@ patternProperties:
       '#gpio-cells':
         const: 2
 
+      gpio-line-names:
+        minItems: 1
+        maxItems: 32
+
       ngpios:
         default: 32
         minimum: 1

Documentation/devicetree/bindings/gpio/st,stmpe-gpio.yaml

@@ -28,6 +28,10 @@ properties:
 
   gpio-controller: true
 
+  gpio-line-names:
+    minItems: 1
+    maxItems: 24
+
   interrupt-controller: true
 
   st,norequest-mask:

MAINTAINERS

@@ -4195,7 +4195,7 @@ BROADCOM KONA GPIO DRIVER
 M:	Ray Jui <rjui@broadcom.com>
 R:	Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>
 S:	Supported
-F:	Documentation/devicetree/bindings/gpio/brcm,kona-gpio.txt
+F:	Documentation/devicetree/bindings/gpio/brcm,kona-gpio.yaml
 F:	drivers/gpio/gpio-bcm-kona.c
 
 BROADCOM MPI3 STORAGE CONTROLLER DRIVER

drivers/gpio/Kconfig

@@ -111,6 +111,9 @@ config GPIO_MAX730X
 
 config GPIO_IDIO_16
 	tristate
+	select REGMAP_IRQ
+	select GPIOLIB_IRQCHIP
+	select GPIO_REGMAP
 	help
 	  Enables support for the idio-16 library functions. The idio-16 library
 	  provides functions to facilitate communication with devices within the
@@ -191,7 +194,7 @@ config GPIO_RASPBERRYPI_EXP
 
 config GPIO_BCM_KONA
 	bool "Broadcom Kona GPIO"
-	depends on OF_GPIO && (ARCH_BCM_MOBILE || COMPILE_TEST)
+	depends on ARCH_BCM_MOBILE || COMPILE_TEST
 	help
 	  Turn on GPIO support for Broadcom "Kona" chips.
 
@@ -283,7 +286,7 @@ config GPIO_EXAR
 
 config GPIO_GE_FPGA
 	bool "GE FPGA based GPIO"
-	depends on GE_FPGA
+	depends on GE_FPGA || COMPILE_TEST
 	select GPIO_GENERIC
 	help
 	  Support for common GPIO functionality provided on some GE Single Board
@@ -564,7 +567,7 @@ config GPIO_SAMA5D2_PIOBU
 	  maintain their value during backup/self-refresh.
 
 config GPIO_SIFIVE
-	bool "SiFive GPIO support"
+	tristate "SiFive GPIO support"
 	depends on OF_GPIO
 	select IRQ_DOMAIN_HIERARCHY
 	select GPIO_GENERIC
@@ -858,6 +861,7 @@ config GPIO_104_DIO_48E
 	select REGMAP_IRQ
 	select GPIOLIB_IRQCHIP
 	select GPIO_I8255
+	select I8254
 	help
 	  Enables GPIO support for the ACCES 104-DIO-48E series (104-DIO-48E,
 	  104-DIO-24E). The base port addresses for the devices may be
@@ -868,7 +872,7 @@ config GPIO_104_IDIO_16
 	tristate "ACCES 104-IDIO-16 GPIO support"
 	depends on PC104
 	select ISA_BUS_API
-	select GPIOLIB_IRQCHIP
+	select REGMAP_MMIO
 	select GPIO_IDIO_16
 	help
 	  Enables GPIO support for the ACCES 104-IDIO-16 family (104-IDIO-16,
@@ -994,7 +998,10 @@ config GPIO_WINBOND
 config GPIO_WS16C48
 	tristate "WinSystems WS16C48 GPIO support"
 	select ISA_BUS_API
+	select REGMAP_IRQ
+	select REGMAP_MMIO
 	select GPIOLIB_IRQCHIP
+	select GPIO_REGMAP
 	help
 	  Enables GPIO support for the WinSystems WS16C48. The base port
 	  addresses for the devices may be configured via the base module
@@ -1028,6 +1035,17 @@ config GPIO_FXL6408
 	  To compile this driver as a module, choose M here: the module will
 	  be called gpio-fxl6408.
 
+config GPIO_DS4520
+	tristate "DS4520 I2C GPIO expander"
+	select REGMAP_I2C
+	select GPIO_REGMAP
+	help
+	  GPIO driver for ADI DS4520 I2C-based GPIO expander.
+	  Say yes here to enable the GPIO driver for the ADI DS4520 chip.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called gpio-ds4520.
+
 config GPIO_GW_PLD
 	tristate "Gateworks PLD GPIO Expander"
 	depends on OF_GPIO
@@ -1640,7 +1658,7 @@ config GPIO_PCH
 
 config GPIO_PCI_IDIO_16
 	tristate "ACCES PCI-IDIO-16 GPIO support"
-	select GPIOLIB_IRQCHIP
+	select REGMAP_MMIO
 	select GPIO_IDIO_16
 	help
 	  Enables GPIO support for the ACCES PCI-IDIO-16. An interrupt is
@@ -1650,7 +1668,10 @@ config GPIO_PCI_IDIO_16
 
 config GPIO_PCIE_IDIO_24
 	tristate "ACCES PCIe-IDIO-24 GPIO support"
+	select REGMAP_IRQ
+	select REGMAP_MMIO
 	select GPIOLIB_IRQCHIP
+	select GPIO_REGMAP
 	help
 	  Enables GPIO support for the ACCES PCIe-IDIO-24 family (PCIe-IDIO-24,
 	  PCIe-IDI-24, PCIe-IDO-24, PCIe-IDIO-12). An interrupt is generated

drivers/gpio/Makefile

@@ -52,6 +52,7 @@ obj-$(CONFIG_GPIO_DA9052)		+= gpio-da9052.o
 obj-$(CONFIG_GPIO_DA9055)		+= gpio-da9055.o
 obj-$(CONFIG_GPIO_DAVINCI)		+= gpio-davinci.o
 obj-$(CONFIG_GPIO_DLN2)			+= gpio-dln2.o
+obj-$(CONFIG_GPIO_DS4520)		+= gpio-ds4520.o
 obj-$(CONFIG_GPIO_DWAPB)		+= gpio-dwapb.o
 obj-$(CONFIG_GPIO_EIC_SPRD)		+= gpio-eic-sprd.o
 obj-$(CONFIG_GPIO_ELKHARTLAKE)		+= gpio-elkhartlake.o