Merge tag 'at91-dt-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux into soc/dt

Microchip AT91 device tree updates for v6.12

It contains:
- SAMA7G5-EK DTS was updated with EEPROM nodes containing Ethernet
  addresses (needed, at least, when U-Boot is removed from the booting
  chain)
- 5V supplies were added to to MCP16502 PMIC nodes for better hardware
  description
- cleanups around pinctrl nodes which removed many dtbs_check warnings;
  along with it the pinctrl documentation was converted to json schema
- fixes for the RTC and RTT supply clocks on SAMA7G5 and SAM9X60
- other cleanups to fix dtbs_check warnings

* tag 'at91-dt-6.12' of https://git.kernel.org/pub/scm/linux/kernel/git/at91/linux:
  ARM: dts: microchip: sama7g5: Fix RTT clock
  ARM: dts: microchip: sam9x60: Fix rtc/rtt clocks
  dt-bindings: pinctrl: Convert Atmel PIO3 pinctrl to json-schema
  ARM: dts: microchip: sam9x60: Remove additional compatible string from GPIO node
  ARM: dts: microchip: Remove additional compatible string from PIO3 pinctrl nodes
  ARM: dts: microchip: change to simple-mfd from simple-bus for PIO3 pinumux controller
  ARM: dts: microchip: sama5d29_curiosity: Add reg_5v to supply PMIC nodes
  ARM: dts: microchip: at91-sama5d27_wlsom1: Add reg_5v to supply PMIC nodes
  ARM: dts: microchip: at91-sama5d2_icp: Add reg_5v to supply PMIC nodes
  ARM: dts: microchip: at91-sama7g54_curiosity: Add reg_5v to supply PMIC nodes
  ARM: dts: microchip: at91-sama7g5ek: Add reg_5v to supply PMIC nodes
  ARM: dts: microchip: at91: align LED node name with bindings
  ARM: dts: microchip: sam9x60: Move i2c address/size to dtsi
  ARM: dts: microchip: at91-sama7g5ek: add EEPROMs

Link: https://lore.kernel.org/r/20240901133110.2038675-2-claudiu.beznea@tuxon.dev
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

2 files changed, 184 insertions, 178 deletions

diff --git a/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt
deleted file mode 100644
index 0aa1a53012d6..000000000000
--- a/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt
+++ /dev/null
@@ -1,178 +0,0 @@
-* Atmel AT91 Pinmux Controller
-
-The AT91 Pinmux Controller, enables the IC
-to share one PAD to several functional blocks. The sharing is done by
-multiplexing the PAD input/output signals. For each PAD there are up to
-8 muxing options (called periph modes). Since different modules require
-different PAD settings (like pull up, keeper, etc) the controller controls
-also the PAD settings parameters.
-
-Please refer to pinctrl-bindings.txt in this directory for details of the
-common pinctrl bindings used by client devices, including the meaning of the
-phrase "pin configuration node".
-
-Atmel AT91 pin configuration node is a node of a group of pins which can be
-used for a specific device or function. This node represents both mux and config
-of the pins in that group. The 'pins' selects the function mode(also named pin
-mode) this pin can work on and the 'config' configures various pad settings
-such as pull-up, multi drive, etc.
-
-Required properties for iomux controller:
-- compatible: "atmel,at91rm9200-pinctrl" or "atmel,at91sam9x5-pinctrl"
-		or "atmel,sama5d3-pinctrl" or "microchip,sam9x60-pinctrl"
-		or "microchip,sam9x7-pinctrl", "microchip,sam9x60-pinctrl"
-- atmel,mux-mask: array of mask (periph per bank) to describe if a pin can be
-  configured in this periph mode. All the periph and bank need to be describe.
-
-How to create such array:
-
-Each column will represent the possible peripheral of the pinctrl
-Each line will represent a pio bank
-
-Take an example on the 9260
-Peripheral: 2 ( A and B)
-Bank: 3 (A, B and C)
-=>
-
-  /*    A         B     */
-  0xffffffff 0xffc00c3b  /* pioA */
-  0xffffffff 0x7fff3ccf  /* pioB */
-  0xffffffff 0x007fffff  /* pioC */
-
-For each peripheral/bank we will describe in a u32 if a pin can be
-configured in it by putting 1 to the pin bit (1 << pin)
-
-Let's take the pioA on peripheral B
-From the datasheet Table 10-2.
-Peripheral B
-PA0	MCDB0
-PA1	MCCDB
-PA2
-PA3	MCDB3
-PA4	MCDB2
-PA5	MCDB1
-PA6
-PA7
-PA8
-PA9
-PA10	ETX2
-PA11	ETX3
-PA12
-PA13
-PA14
-PA15
-PA16
-PA17
-PA18
-PA19
-PA20
-PA21
-PA22	ETXER
-PA23	ETX2
-PA24	ETX3
-PA25	ERX2
-PA26	ERX3
-PA27	ERXCK
-PA28	ECRS
-PA29	ECOL
-PA30	RXD4
-PA31	TXD4
-
-=> 0xffc00c3b
-
-Required properties for pin configuration node:
-- atmel,pins: 4 integers array, represents a group of pins mux and config
-  setting. The format is atmel,pins = <PIN_BANK PIN_BANK_NUM PERIPH CONFIG>.
-  The PERIPH 0 means gpio, PERIPH 1 is periph A, PERIPH 2 is periph B...
-  PIN_BANK 0 is pioA, PIN_BANK 1 is pioB...
-
-Bits used for CONFIG:
-PULL_UP		(1 << 0): indicate this pin needs a pull up.
-MULTIDRIVE	(1 << 1): indicate this pin needs to be configured as multi-drive.
-			Multi-drive is equivalent to open-drain type output.
-DEGLITCH	(1 << 2): indicate this pin needs deglitch.
-PULL_DOWN	(1 << 3): indicate this pin needs a pull down.
-DIS_SCHMIT	(1 << 4): indicate this pin needs to the disable schmitt trigger.
-DRIVE_STRENGTH (3 << 5): indicate the drive strength of the pin using the
-			following values:
-				00 - No change (reset state value kept)
-				01 - Low
-				10 - Medium
-				11 - High
-OUTPUT		(1 << 7): indicate this pin need to be configured as an output.
-OUTPUT_VAL	(1 << 8): output val (1 = high, 0 = low)
-SLEWRATE	(1 << 9): slew rate of the pin: 0 = disable, 1 = enable
-DEBOUNCE	(1 << 16): indicate this pin needs debounce.
-DEBOUNCE_VAL	(0x3fff << 17): debounce value.
-
-NOTE:
-Some requirements for using atmel,at91rm9200-pinctrl binding:
-1. We have pin function node defined under at91 controller node to represent
-   what pinmux functions this SoC supports.
-2. The driver can use the function node's name and pin configuration node's
-   name describe the pin function and group hierarchy.
-   For example, Linux at91 pinctrl driver takes the function node's name
-   as the function name and pin configuration node's name as group name to
-   create the map table.
-3. Each pin configuration node should have a phandle, devices can set pins
-   configurations by referring to the phandle of that pin configuration node.
-4. The gpio controller must be describe in the pinctrl simple-bus.
-
-For each bank the required properties are:
-- compatible: "atmel,at91sam9x5-gpio" or "atmel,at91rm9200-gpio" or
-  "microchip,sam9x60-gpio"
-  or "microchip,sam9x7-gpio", "microchip,sam9x60-gpio", "atmel,at91rm9200-gpio"
-- reg: physical base address and length of the controller's registers
-- interrupts: interrupt outputs from the controller
-- interrupt-controller: marks the device node as an interrupt controller
-- #interrupt-cells: should be 2; refer to ../interrupt-controller/interrupts.txt
-  for more details.
-- gpio-controller
-- #gpio-cells: should be 2; the first cell is the GPIO number and the second
-  cell specifies GPIO flags as defined in <dt-bindings/gpio/gpio.h>.
-- clocks: bank clock
-
-Examples:
-
-pinctrl@fffff400 {
-	#address-cells = <1>;
-	#size-cells = <1>;
-	ranges;
-	compatible = "atmel,at91rm9200-pinctrl", "simple-bus";
-	reg = <0xfffff400 0x600>;
-
-	pioA: gpio@fffff400 {
-		compatible = "atmel,at91sam9x5-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>;
-	};
-
-	atmel,mux-mask = <
-	      /*    A         B     */
-	       0xffffffff 0xffc00c3b  /* pioA */
-	       0xffffffff 0x7fff3ccf  /* pioB */
-	       0xffffffff 0x007fffff  /* pioC */
-	      >;
-
-	/* shared pinctrl settings */
-	dbgu {
-		pinctrl_dbgu: dbgu-0 {
-			atmel,pins =
-				<1 14 0x1 0x0	/* PB14 periph A */
-				 1 15 0x1 0x1>;	/* PB15 periph A with pullup */
-		};
-	};
-};
-
-dbgu: serial@fffff200 {
-	compatible = "atmel,at91sam9260-usart";
-	reg = <0xfffff200 0x200>;
-	interrupts = <1 4 7>;
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_dbgu>;
-};
diff --git a/Documentation/devicetree/bindings/pinctrl/atmel,at91rm9200-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/atmel,at91rm9200-pinctrl.yaml
new file mode 100644
index 000000000000..1bb386b42039
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/atmel,at91rm9200-pinctrl.yaml
@@ -0,0 +1,184 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/atmel,at91rm9200-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip PIO3 Pinmux Controller
+
+maintainers:
+  - Manikandan Muralidharan <manikandan.m@microchip.com>
+
+description:
+  The AT91 Pinmux Controller, enables the IC to share one PAD to several
+  functional blocks. The sharing is done by multiplexing the PAD input/output
+  signals. For each PAD there are up to 8 muxing options (called periph modes).
+  Since different modules require different PAD settings (like pull up, keeper,
+  etc) the controller controls also the PAD settings parameters.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - enum:
+              - atmel,at91rm9200-pinctrl
+              - atmel,at91sam9x5-pinctrl
+              - atmel,sama5d3-pinctrl
+              - microchip,sam9x60-pinctrl
+          - const: simple-mfd
+      - items:
+          - enum:
+              - microchip,sam9x7-pinctrl
+          - const: microchip,sam9x60-pinctrl
+          - const: simple-mfd
+
+  '#address-cells':
+    const: 1
+
+  '#size-cells':
+    const: 1
+
+  ranges: true
+
+  atmel,mux-mask:
+    $ref: /schemas/types.yaml#/definitions/uint32-matrix
+    description: |
+      Array of mask (periph per bank) to describe if a pin can be
+      configured in this periph mode. All the periph and bank need to
+      be described.
+
+      #How to create such array:
+
+      Each column will represent the possible peripheral of the pinctrl
+      Each line will represent a pio bank
+
+      #Example:
+
+      In at91sam9260.dtsi,
+      Peripheral: 2 ( A and B)
+      Bank: 3 (A, B and C)
+
+      #    A          B
+      0xffffffff 0xffc00c3b  # pioA
+      0xffffffff 0x7fff3ccf  # pioB
+      0xffffffff 0x007fffff  # pioC
+
+      For each peripheral/bank we will describe in a u32 if a pin can be
+      configured in it by putting 1 to the pin bit (1 << pin)
+
+      Let's take the pioA on peripheral B whose value is 0xffc00c3b
+      From the datasheet Table 10-2.
+      Peripheral B
+      PA0     MCDB0
+      PA1     MCCDB
+      PA2
+      PA3     MCDB3
+      PA4     MCDB2
+      PA5     MCDB1
+      PA6
+      PA7
+      PA8
+      PA9
+      PA10    ETX2
+      PA11    ETX3
+      PA12
+      PA13
+      PA14
+      PA15
+      PA16
+      PA17
+      PA18
+      PA19
+      PA20
+      PA21
+      PA22    ETXER
+      PA23    ETX2
+      PA24    ETX3
+      PA25    ERX2
+      PA26    ERX3
+      PA27    ERXCK
+      PA28    ECRS
+      PA29    ECOL
+      PA30    RXD4
+      PA31    TXD4
+
+allOf:
+  - $ref: pinctrl.yaml#
+
+required:
+  - compatible
+  - ranges
+  - "#address-cells"
+  - "#size-cells"
+  - atmel,mux-mask
+
+patternProperties:
+  'gpio@[0-9a-f]+$':
+    $ref: /schemas/gpio/atmel,at91rm9200-gpio.yaml
+    unevaluatedProperties: false
+
+additionalProperties:
+  type: object
+  additionalProperties:
+    type: object
+    additionalProperties: false
+
+    properties:
+      atmel,pins:
+        $ref: /schemas/types.yaml#/definitions/uint32-matrix
+        description: |
+          Each entry consists of 4 integers and represents the pins
+          mux and config setting.The format is
+          atmel,pins = <PIN_BANK PIN_BANK_NUM PERIPH CONFIG>.
+          Supported pin number and mux varies for different SoCs, and
+          are defined in <include/dt-bindings/pinctrl/at91.h>.
+          items:
+            items:
+              - description:
+                  Pin bank
+              - description:
+                  Pin bank index
+              - description:
+                  Peripheral function
+              - description:
+                  Pad configuration
+
+examples:
+  - |
+     #include <dt-bindings/clock/at91.h>
+     #include <dt-bindings/interrupt-controller/irq.h>
+     #include <dt-bindings/pinctrl/at91.h>
+
+     pinctrl@fffff400 {
+       #address-cells = <1>;
+       #size-cells = <1>;
+       compatible = "atmel,at91rm9200-pinctrl", "simple-mfd";
+       ranges = <0xfffff400 0xfffff400 0x600>;
+
+       atmel,mux-mask = <
+         /*    A         B     */
+         0xffffffff 0xffc00c3b  /* pioA */
+         0xffffffff 0x7fff3ccf  /* pioB */
+         0xffffffff 0x007fffff  /* pioC */
+         >;
+
+       dbgu {
+         pinctrl_dbgu: dbgu-0 {
+           atmel,pins =
+             <AT91_PIOB 14 AT91_PERIPH_A AT91_PINCTRL_PULL_UP
+              AT91_PIOB 15 AT91_PERIPH_A AT91_PINCTRL_NONE>;
+         };
+       };
+
+       pioA: 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>;
+       };
+     };
+...