From: Mark Kettenis <kettenis@openbsd.org>
To: devicetree@vger.kernel.org
Cc: Mark Kettenis <kettenis@openbsd.org>,
Hector Martin <marcan@marcan.st>,
Linus Walleij <linus.walleij@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
linux-arm-kernel@lists.infradead.org, linux-gpio@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/2] dt-bindings: pinctrl: Add DT bindings for apple,pinctrl
Date: Sat, 8 May 2021 16:19:55 +0200 [thread overview]
Message-ID: <20210508142000.85116-2-kettenis@openbsd.org> (raw)
In-Reply-To: <20210508142000.85116-1-kettenis@openbsd.org>
The Apple GPIO controller is a simple combined pin and GPIO conroller
present on Apple ARM SoC platforms, including various iPhone and iPad
devices and the "Apple Silicon" Macs.
Signed-off-by: Mark Kettenis <kettenis@openbsd.org>
---
.../bindings/pinctrl/apple,pinctrl.yaml | 103 ++++++++++++++++++
MAINTAINERS | 2 +
include/dt-bindings/pinctrl/apple.h | 13 +++
3 files changed, 118 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml
create mode 100644 include/dt-bindings/pinctrl/apple.h
diff --git a/Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml b/Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml
new file mode 100644
index 000000000000..cc7805ca6ba1
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml
@@ -0,0 +1,103 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/apple,pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple GPIO controller
+
+maintainers:
+ - Mark Kettenis <kettenis@openbsd.org>
+
+description: |
+ The Apple GPIO controller is a simple combined pin and GPIO conroller
+ present on Apple ARM SoC platforms, including various iPhone and iPad
+ devices and the "Apple Silicon" Macs.
+
+properties:
+ compatible:
+ items:
+ - const: apple,t8103-pinctrl
+ - const: apple,pinctrl
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ gpio-controller: true
+
+ '#gpio-cells':
+ const: 2
+
+ gpio-ranges:
+ maxItems: 1
+
+ interrupts:
+ minItems: 1
+ maxItems: 7
+
+ interrupt-controller: true
+
+patternProperties:
+ '-pins$':
+ type: object
+ $ref: pinmux-node.yaml#
+
+ properties:
+ pinmux:
+ description:
+ Values are constructed from pin number and alternate function
+ configuration number using the APPLE_PINMUX() helper macro
+ defined in include/dt-bindings/pinctrl/apple.h.
+
+ required:
+ - pinmux
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - gpio-controller
+ - '#gpio-cells'
+ - gpio-ranges
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/apple-aic.h>
+ #include <dt-bindings/pinctrl/apple.h>
+
+ soc {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ pinctrl: pinctrl@23c100000 {
+ compatible = "apple,t8103-pinctrl", "apple,pinctrl";
+ reg = <0x2 0x3c100000 0x0 0x100000>;
+ clocks = <&gpio_clk>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 0 212>;
+
+ interrupt-controller;
+ interrupt-parent = <&aic>;
+ interrupts = <AIC_IRQ 16 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 17 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 18 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 19 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 20 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 21 IRQ_TYPE_LEVEL_HIGH>,
+ <AIC_IRQ 22 IRQ_TYPE_LEVEL_HIGH>;
+
+ pcie_pins: pcie-pins {
+ pinmux = <APPLE_PINMUX(150, 1)>,
+ <APPLE_PINMUX(151, 1)>,
+ <APPLE_PINMUX(32, 1)>;
+ };
+ };
+ };
diff --git a/MAINTAINERS b/MAINTAINERS
index ad0e9be66885..7327c9b778f1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1654,9 +1654,11 @@ C: irc://chat.freenode.net/asahi-dev
T: git https://github.com/AsahiLinux/linux.git
F: Documentation/devicetree/bindings/arm/apple.yaml
F: Documentation/devicetree/bindings/interrupt-controller/apple,aic.yaml
+F: Documentation/devicetree/bindings/pinctrl/apple,pinctrl.yaml
F: arch/arm64/boot/dts/apple/
F: drivers/irqchip/irq-apple-aic.c
F: include/dt-bindings/interrupt-controller/apple-aic.h
+F: include/dt-bindings/pinctrl/apple.h
ARM/ARTPEC MACHINE SUPPORT
M: Jesper Nilsson <jesper.nilsson@axis.com>
diff --git a/include/dt-bindings/pinctrl/apple.h b/include/dt-bindings/pinctrl/apple.h
new file mode 100644
index 000000000000..ea0a6f466592
--- /dev/null
+++ b/include/dt-bindings/pinctrl/apple.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0+ OR MIT */
+/*
+ * This header provides constants for Apple pinctrl bindings.
+ */
+
+#ifndef _DT_BINDINGS_PINCTRL_APPLE_H
+#define _DT_BINDINGS_PINCTRL_APPLE_H
+
+#define APPLE_PINMUX(pin, func) ((pin) | ((func) << 16))
+#define APPLE_PIN(pinmux) ((pinmux) & 0xffff)
+#define APPLE_FUNC(pinmux) ((pinmux) >> 16)
+
+#endif /* _DT_BINDINGS_PINCTRL_APPLE_H */
--
2.31.1
next prev parent reply other threads:[~2021-05-08 14:27 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-08 14:19 [PATCH 0/2] Apple M1 pinctrl DT bindings Mark Kettenis
2021-05-08 14:19 ` Mark Kettenis [this message]
2021-05-08 21:09 ` [PATCH 1/2] dt-bindings: pinctrl: Add DT bindings for apple,pinctrl Linus Walleij
2021-05-08 23:02 ` Mark Kettenis
2021-05-09 0:27 ` Linus Walleij
2021-05-09 9:50 ` Tomasz Figa
2021-05-10 13:09 ` Krzysztof Kozlowski
2021-05-09 0:18 ` Linus Walleij
2021-05-09 9:46 ` Mark Kettenis
2021-05-09 10:49 ` Linus Walleij
2021-05-10 13:03 ` Krzysztof Kozlowski
2021-05-10 17:09 ` Mark Kettenis
2021-05-10 14:01 ` Rob Herring
2021-05-10 18:18 ` Rob Herring
2021-05-10 14:19 ` Rob Herring
2021-05-10 17:06 ` Mark Kettenis
2021-05-19 23:27 ` Linus Walleij
2021-05-20 11:22 ` Mark Kettenis
2021-05-08 14:19 ` [PATCH 2/2] arm64: apple: Add pinctrl nodes Mark Kettenis
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