linux-kernel - [PATCH v2 1/3] dt-bindings: pinctrl: Add support for Amlogic A4 SoCs

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Message-Id: <20241014-a4_pinctrl-v2-1-3e74a65c285e@amlogic.com>
Date: Mon, 14 Oct 2024 17:05:51 +0800
From: Xianwei Zhao via B4 Relay <devnull+xianwei.zhao.amlogic.com@...nel.org>
To: Linus Walleij <linus.walleij@...aro.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Neil Armstrong <neil.armstrong@...aro.org>, 
 Kevin Hilman <khilman@...libre.com>, Jerome Brunet <jbrunet@...libre.com>, 
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>, 
 Bartosz Golaszewski <brgl@...ev.pl>
Cc: linux-gpio@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, linux-amlogic@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, Xianwei Zhao <xianwei.zhao@...ogic.com>
Subject: [PATCH v2 1/3] dt-bindings: pinctrl: Add support for Amlogic A4
 SoCs

From: Xianwei Zhao <xianwei.zhao@...ogic.com>

Add the new compatible name for Amlogic A4 pin controller, and add
a new dt-binding header file which document the detail pin names.

Signed-off-by: Xianwei Zhao <xianwei.zhao@...ogic.com>
---
 .../bindings/pinctrl/amlogic,meson-pinctrl-a1.yaml |  2 ++
 include/dt-bindings/gpio/amlogic-a4-gpio.h         | 38 ++++++++++++++++++++++
 2 files changed, 40 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl-a1.yaml b/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl-a1.yaml
index d9e0b2c48e84..f5eefa0fab5b 100644
--- a/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl-a1.yaml
+++ b/Documentation/devicetree/bindings/pinctrl/amlogic,meson-pinctrl-a1.yaml
@@ -15,6 +15,8 @@ allOf:
 properties:
   compatible:
     enum:
+      - amlogic,a4-aobus-pinctrl
+      - amlogic,a4-periphs-pinctrl
       - amlogic,c3-periphs-pinctrl
       - amlogic,t7-periphs-pinctrl
       - amlogic,meson-a1-periphs-pinctrl
diff --git a/include/dt-bindings/gpio/amlogic-a4-gpio.h b/include/dt-bindings/gpio/amlogic-a4-gpio.h
new file mode 100644
index 000000000000..e39f5e041875
--- /dev/null
+++ b/include/dt-bindings/gpio/amlogic-a4-gpio.h
@@ -0,0 +1,38 @@
+/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
+/*
+ * Copyright (c) 2024 Amlogic, Inc. All rights reserved.
+ * Author: Xianwei Zhao <xianwei.zhao@...ogic.com>
+ */
+
+#ifndef _DT_BINDINGS_AMLOGIC_A4_GPIO_H
+#define _DT_BINDINGS_AMLOGIC_A4_GPIO_H
+
+/* Standard port */
+#define GPIOB_START	0
+#define GPIOB_NUM	14
+
+#define GPIOD_START	(GPIOB_START + GPIOB_NUM)
+#define GPIOD_NUM	16
+
+#define GPIOE_START	(GPIOD_START + GPIOD_NUM)
+#define GPIOE_NUM	2
+
+#define GPIOT_START	(GPIOE_START + GPIOE_NUM)
+#define GPIOT_NUM	23
+
+#define GPIOX_START	(GPIOT_START + GPIOT_NUM)
+#define GPIOX_NUM	18
+
+#define PERIPHS_PIN_NUM	(GPIOX_START + GPIOX_NUM)
+
+/* Aobus port */
+#define GPIOAO_START	0
+#define GPIOAO_NUM	7
+
+/* It's a special definition, put at the end, just 1 num */
+#define	GPIO_TEST_N	(GPIOAO_START +  GPIOAO_NUM)
+#define	AOBUS_PIN_NUM	(GPIO_TEST_N + 1)
+
+#define AMLOGIC_GPIO(port, offset)	(port##_START + (offset))
+
+#endif /* _DT_BINDINGS_AMLOGIC_A4_GPIO_H */

-- 
2.37.1