linux-kernel - [PATCH 14/21] dt-bindings: pinctrl: adi,adsp-pinctrl: add bindings

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Message-Id: <20240912-test-v1-14-458fa57c8ccf@analog.com>
Date: Thu, 12 Sep 2024 19:24:59 +0100
From: Arturs Artamonovs via B4 Relay <devnull+arturs.artamonovs.analog.com@...nel.org>
To: Catalin Marinas <catalin.marinas@....com>, 
 Will Deacon <will@...nel.org>, Greg Malysa <greg.malysa@...esys.com>, 
 Philipp Zabel <p.zabel@...gutronix.de>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Utsav Agarwal <Utsav.Agarwal@...log.com>, 
 Michael Turquette <mturquette@...libre.com>, 
 Stephen Boyd <sboyd@...nel.org>, Linus Walleij <linus.walleij@...aro.org>, 
 Bartosz Golaszewski <brgl@...ev.pl>, Thomas Gleixner <tglx@...utronix.de>, 
 Andi Shyti <andi.shyti@...nel.org>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 Jiri Slaby <jirislaby@...nel.org>, Arnd Bergmann <arnd@...db.de>, 
 Olof Johansson <olof@...om.net>, soc@...nel.org
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-clk@...r.kernel.org, 
 linux-gpio@...r.kernel.org, linux-i2c@...r.kernel.org, 
 linux-serial@...r.kernel.org, 
 Arturs Artamonovs <arturs.artamonovs@...log.com>, adsp-linux@...log.com, 
 Arturs Artamonovs <Arturs.Artamonovs@...log.com>, 
 Nathan Barrett-Morrison <nathan.morrison@...esys.com>
Subject: [PATCH 14/21] dt-bindings: pinctrl: adi,adsp-pinctrl: add bindings

From: Arturs Artamonovs <arturs.artamonovs@...log.com>

Add PINCTRL driver bindings.

Signed-off-by: Arturs Artamonovs <Arturs.Artamonovs@...log.com>
Co-developed-by: Nathan Barrett-Morrison <nathan.morrison@...esys.com>
Signed-off-by: Nathan Barrett-Morrison <nathan.morrison@...esys.com>
Co-developed-by: Greg Malysa <greg.malysa@...esys.com>
Signed-off-by: Greg Malysa <greg.malysa@...esys.com>
---
 .../bindings/pinctrl/adi,adsp-pinctrl.yaml         | 83 ++++++++++++++++++++++
 include/dt-bindings/pinctrl/adi-adsp.h             | 19 +++++
 2 files changed, 102 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/adi,adsp-pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/adi,adsp-pinctrl.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..073442b4f680bf536f631b4c17a1d3195c2233d6
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/adi,adsp-pinctrl.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/adi,adsp-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analog Devices Pinmuxing Control for SC5XX Processor Family
+
+maintainers:
+  - Arturs Artamonovs <arturs.artamonovs@...log.com>
+  - Utsav Agarwal <Utsav.Agarwal@...log.com>
+
+description: |
+  Pinmuxing Control Driver for Configuring Processor Pins/Pads
+
+properties:
+  compatible:
+    enum:
+      - adi,adsp-pinctrl
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+  reg:
+    maxItems: 1
+
+  "adi,port-sizes":
+    $ref: /schemas/types.yaml#/definitions/uint32-array
+    maxItems: 9
+    description: Space delimited integer list denoting number of pins per port
+      Ports A-I exist, so this is up to 9 items long
+
+  "adi,no-drive-strength":
+    type: boolean
+    description: Indicate missing drive strength registers
+
+  "adi,no-pull-up-down":
+    type: boolean
+    description: Indicate missing pull up/down enable registers
+
+patternProperties:
+  '-pins$':
+    type: object
+    additionalProperties: false
+
+    properties:
+      pins:
+        type: object
+        description: |
+          A pinctrl node should contain a pin property, specifying the actual
+          pins to use.
+
+        properties:
+          pinmux:
+            $ref: /schemas/types.yaml#/definitions/uint32-array
+            description: |
+              pinmux is used to specify which of the available functionalities
+              for a given pin are actually used.
+
+        additionalProperties: false
+
+required:
+  - compatible
+  - "#address-cells"
+  - "#size-cells"
+  - reg
+  - "adi,port-sizes"
+
+additionalProperties: false
+
+examples:
+  - |
+    pinctrl0: pinctrl@...04600 {
+      compatible = "adi,adsp-pinctrl";
+      #address-cells = <1>;
+      #size-cells = <1>;
+      reg = <0x31004600 0x400>;
+      adi,port-sizes = <16 16 16 16 16 16 16 16 7>;
+    };
+
diff --git a/include/dt-bindings/pinctrl/adi-adsp.h b/include/dt-bindings/pinctrl/adi-adsp.h
new file mode 100644
index 0000000000000000000000000000000000000000..dc5b86a0d9190acdd242a6ba4972c3aac7a61821
--- /dev/null
+++ b/include/dt-bindings/pinctrl/adi-adsp.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0*/
+/*
+ * Macros for populating pinmux properties on the pincontroller
+ *
+ * Copyright 2022-2024 - Analog Devices Inc.
+ */
+
+#ifndef DT_BINDINGS_PINCTRL_ADI_ADSP_H
+#define DT_BINDINGS_PINCTRL_ADI_ADSP_H
+
+#define ADI_ADSP_PINFUNC_GPIO     0
+#define ADI_ADSP_PINFUNC_ALT0     1
+#define ADI_ADSP_PINFUNC_ALT1     2
+#define ADI_ADSP_PINFUNC_ALT2     3
+#define ADI_ADSP_PINFUNC_ALT3     4
+
+#define ADI_ADSP_PINMUX(port, pin, func) ((((port - 'A')*16 + pin) << 8) + func)
+
+#endif

-- 
2.25.1