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From: Dongchun Zhu <dongchun.zhu@mediatek.com>
To: <linus.walleij@linaro.org>, <bgolaszewski@baylibre.com>,
	<mchehab@kernel.org>, <andriy.shevchenko@linux.intel.com>,
	<robh+dt@kernel.org>, <mark.rutland@arm.com>,
	<sakari.ailus@linux.intel.com>,  <drinkcat@chromium.org>,
	<tfiga@chromium.org>, <matthias.bgg@gmail.com>,
	<bingbu.cao@intel.com>
Cc: devicetree@vger.kernel.org, srv_heupstream@mediatek.com,
	shengnan.wang@mediatek.com, sj.huang@mediatek.com,
	linux-mediatek@lists.infradead.org, dongchun.zhu@mediatek.com,
	louis.kuo@mediatek.com, linux-arm-kernel@lists.infradead.org,
	linux-media@vger.kernel.org
Subject: [PATCH V9 1/2] media: dt-bindings: media: i2c: Document DW9768 bindings
Date: Tue, 30 Jun 2020 14:22:10 +0800
Message-ID: <20200630062211.22988-2-dongchun.zhu@mediatek.com> (raw)
In-Reply-To: <20200630062211.22988-1-dongchun.zhu@mediatek.com>

Add DeviceTree Binding Documentation for Dongwoon Anatech DW9768
voice coil actuator.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Dongchun Zhu <dongchun.zhu@mediatek.com>
---
 .../bindings/media/i2c/dongwoon,dw9768.yaml        | 100 +++++++++++++++++++++
 MAINTAINERS                                        |   7 ++
 2 files changed, 107 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/i2c/dongwoon,dw9768.yaml

diff --git a/Documentation/devicetree/bindings/media/i2c/dongwoon,dw9768.yaml b/Documentation/devicetree/bindings/media/i2c/dongwoon,dw9768.yaml
new file mode 100644
index 0000000..cb96e95
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/dongwoon,dw9768.yaml
@@ -0,0 +1,100 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright (c) 2020 MediaTek Inc.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/media/i2c/dongwoon,dw9768.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Dongwoon Anatech DW9768 Voice Coil Motor (VCM) Lens Device Tree Bindings
+
+maintainers:
+  - Dongchun Zhu <dongchun.zhu@mediatek.com>
+
+description: |-
+  The Dongwoon DW9768 is a single 10-bit digital-to-analog (DAC) converter
+  with 100 mA output current sink capability. VCM current is controlled with
+  a linear mode driver. The DAC is controlled via a 2-wire (I2C-compatible)
+  serial interface that operates at clock rates up to 1MHz. This chip
+  integrates Advanced Actuator Control (AAC) technology and is intended for
+  driving voice coil lenses in camera modules.
+
+properties:
+  compatible:
+    enum:
+      - dongwoon,dw9768 # for DW9768 VCM
+      - giantec,gt9769  # for GT9769 VCM
+
+  reg:
+    maxItems: 1
+
+  vin-supply:
+    description:
+      Definition of the regulator used as Digital I/O voltage supply.
+
+  vdd-supply:
+    description:
+      Definition of the regulator used as Digital core voltage supply.
+
+  dongwoon,aac-mode:
+    description:
+      Indication of AAC mode select.
+    allOf:
+      - $ref: "/schemas/types.yaml#/definitions/uint32"
+      - enum:
+          - 1    #  AAC2 mode(operation time# 0.48 x Tvib)
+          - 2    #  AAC3 mode(operation time# 0.70 x Tvib)
+          - 3    #  AAC4 mode(operation time# 0.75 x Tvib)
+          - 5    #  AAC8 mode(operation time# 1.13 x Tvib)
+        default: 2
+
+  dongwoon,aac-timing:
+    description:
+      Number of AAC Timing count that controlled by one 6-bit period of
+      vibration register AACT[5:0], the unit of which is 100 us.
+    allOf:
+      - $ref: "/schemas/types.yaml#/definitions/uint32"
+      - default: 0x20
+        minimum: 0x00
+        maximum: 0x3f
+
+  dongwoon,clock-presc:
+    description:
+      Indication of VCM internal clock dividing rate select, as one multiple
+      factor to calculate VCM ring periodic time Tvib.
+    allOf:
+      - $ref: "/schemas/types.yaml#/definitions/uint32"
+      - enum:
+          - 0    #  Dividing Rate -  2
+          - 1    #  Dividing Rate -  1
+          - 2    #  Dividing Rate -  1/2
+          - 3    #  Dividing Rate -  1/4
+          - 4    #  Dividing Rate -  8
+          - 5    #  Dividing Rate -  4
+        default: 1
+
+required:
+  - compatible
+  - reg
+  - vin-supply
+  - vdd-supply
+
+additionalProperties: false
+
+examples:
+  - |
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        dw9768: camera-lens@c {
+            compatible = "dongwoon,dw9768";
+            reg = <0x0c>;
+
+            vin-supply = <&mt6358_vcamio_reg>;
+            vdd-supply = <&mt6358_vcama2_reg>;
+            dongwoon,aac-timing = <0x39>;
+        };
+    };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 68f21d4..62690c4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5215,6 +5215,13 @@ T:	git git://linuxtv.org/media_tree.git
 F:	Documentation/devicetree/bindings/media/i2c/dongwoon,dw9714.txt
 F:	drivers/media/i2c/dw9714.c
 
+DONGWOON DW9768 LENS VOICE COIL DRIVER
+M:	Dongchun Zhu <dongchun.zhu@mediatek.com>
+L:	linux-media@vger.kernel.org
+S:	Maintained
+T:	git git://linuxtv.org/media_tree.git
+F:	Documentation/devicetree/bindings/media/i2c/dongwoon,dw9768.yaml
+
 DONGWOON DW9807 LENS VOICE COIL DRIVER
 M:	Sakari Ailus <sakari.ailus@linux.intel.com>
 L:	linux-media@vger.kernel.org
-- 
2.9.2
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  reply index

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-30  6:22 [PATCH V9 0/2] media: i2c: Add support for DW9768 VCM Dongchun Zhu
2020-06-30  6:22 ` Dongchun Zhu [this message]
2020-06-30  6:22 ` [PATCH V9 2/2] media: i2c: dw9768: Add DW9768 VCM driver Dongchun Zhu
2020-06-30 16:57   ` Tomasz Figa
2020-07-01  9:16 ` [PATCH V9 0/2] media: i2c: Add support for DW9768 VCM Sakari Ailus
     [not found]   ` <bf610d1b13c74656b2ffeeb9cc2a96ac@MTKMBS31N1.mediatek.inc>
     [not found]     ` <20200701134416.GQ16711@paasikivi.fi.intel.com>
     [not found]       ` <e55e7b405a084a0298cd839c05b52c79@MTKMBS31N1.mediatek.inc>
2020-07-02  5:10         ` Cao, Bingbu
2020-07-02  5:34         ` Sakari Ailus
2020-07-02 11:06           ` Dongchun Zhu
2020-07-30 16:39             ` Sakari Ailus
2020-07-31  2:44               ` [SPAM]Re: " Dongchun Zhu
2020-07-31 13:04                 ` Sakari Ailus

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