[RFC PATCH v1 2/4] dt-bindings: iio: adc: Add Allwinner D1/T113s/R329 SoCs GPADC

From: Maxim Kiselev <bigunclemax@gmail.com>
To: linux-iio@vger.kernel.org
Cc: Maxim Kiselev <bigunclemax@gmail.com>,
	Jonathan Cameron <jic23@kernel.org>,
	Lars-Peter Clausen <lars@metafoo.de>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Chen-Yu Tsai <wens@csie.org>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	Samuel Holland <samuel@sholland.org>,
	Conor Dooley <conor@kernel.org>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Philipp Zabel <p.zabel@pengutronix.de>,
	Andre Przywara <andre.przywara@arm.com>,
	Heiko Stuebner <heiko.stuebner@vrull.eu>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Cosmin Tanislav <demonsingur@gmail.com>,
	Miquel Raynal <miquel.raynal@bootlin.com>,
	Alexander Sverdlin <alexander.sverdlin@gmail.com>,
	Ramona Bolboaca <ramona.bolboaca@analog.com>,
	William Breathitt Gray <william.gray@linaro.org>,
	ChiYuan Huang <cy_huang@richtek.com>,
	Ibrahim Tilki <Ibrahim.Tilki@analog.com>,
	Caleb Connolly <caleb.connolly@linaro.org>,
	Arnd Bergmann <arnd@arndb.de>,
	Mike Looijmans <mike.looijmans@topic.nl>,
	ChiaEn Wu <chiaen_wu@richtek.com>,
	Haibo Chen <haibo.chen@nxp.com>,
	Hugo Villeneuve <hvilleneuve@dimonoff.com>,
	devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org,
	linux-riscv@lists.infradead.org
Subject: [RFC PATCH v1 2/4] dt-bindings: iio: adc: Add Allwinner D1/T113s/R329 SoCs GPADC
Date: Wed, 24 May 2023 11:27:31 +0300	[thread overview]
Message-ID: <20230524082744.3215427-3-bigunclemax@gmail.com> (raw)
In-Reply-To: <20230524082744.3215427-1-bigunclemax@gmail.com>

Allwinner's D1, T113s and R329 SoCs have a new general purpose ADC.
This ADC is the same for all of this SoCs. The only difference is
the number of available channels.

Signed-off-by: Maxim Kiselev <bigunclemax@gmail.com>
---
 .../iio/adc/allwinner,sun20i-d1-gpadc.yaml    | 52 +++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml

diff --git a/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml b/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml
new file mode 100644
index 000000000000..a79b874750dd
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/adc/allwinner,sun20i-d1-gpadc.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iio/adc/allwinner,sun20i-d1-gpadc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner D1 General Purpose ADC
+
+properties:
+  "#io-channel-cells":
+    const: 0
+
+  clocks:
+    maxItems: 1
+
+  compatible:
+    enum:
+      - allwinner,sun20i-d1-gpadc
+      - allwinner,sun8i-t113-gpadc
+      - allwinner,sun50i-r329-gpadc
+
+  interrupts:
+    maxItems: 1
+
+  reg:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+required:
+  - "#io-channel-cells"
+  - clocks
+  - compatible
+  - interrupts
+  - reg
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    gpadc: adc@2009000 {
+        compatible = "allwinner,sun20i-d1-gpadc";
+        reg = <0x2009000 0x1000>;
+        clocks = <&ccu CLK_BUS_GPADC>;
+        resets = <&ccu RST_BUS_GPADC>;
+        interrupts = <SOC_PERIPHERAL_IRQ(57) IRQ_TYPE_LEVEL_HIGH>;
+        #io-channel-cells = <0>;
+    };
+
+...
-- 
2.39.2

