Linux-Media Archive on lore.kernel.org
 help / color / Atom feed
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: <srv_heupstream@mediatek.com>,
	<linux-mediatek@lists.infradead.org>,
	<linux-arm-kernel@lists.infradead.org>, <sj.huang@mediatek.com>,
	<linux-media@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<louis.kuo@mediatek.com>, <shengnan.wang@mediatek.com>,
	<dongchun.zhu@mediatek.com>
Subject: [V7, 1/2] media: dt-bindings: media: i2c: Document DW9768 bindings
Date: Fri, 5 Jun 2020 18:54:11 +0800
Message-ID: <20200605105412.18813-2-dongchun.zhu@mediatek.com> (raw)
In-Reply-To: <20200605105412.18813-1-dongchun.zhu@mediatek.com>

Add DeviceTree binding documentation for Dongwoon Anatech DW9768 voice
coil actuator.

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 e64e5db..8d72c41 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5151,6 +5151,13 @@ 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

  reply index

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-05 10:54 [V7, 0/2] media: i2c: Add support for DW9768 VCM driver Dongchun Zhu
2020-06-05 10:54 ` Dongchun Zhu [this message]
2020-06-09 19:47   ` [V7, 1/2] media: dt-bindings: media: i2c: Document DW9768 bindings Rob Herring
2020-06-05 10:54 ` [V7, 2/2] media: i2c: dw9768: Add DW9768 VCM driver Dongchun Zhu
2020-06-05 12:14   ` Sakari Ailus
2020-06-05 13:02     ` Tomasz Figa
2020-06-05 13:37       ` Sakari Ailus
2020-06-06  6:24     ` Dongchun Zhu
2020-06-05 12:46   ` Andy Shevchenko
2020-06-05 13:10     ` Tomasz Figa
2020-06-06  6:19     ` Dongchun Zhu
2020-06-08 13:27       ` Andy Shevchenko
2020-06-09  3:45         ` Dongchun Zhu
2020-06-09 11:14           ` Andy Shevchenko
2020-06-10 12:58             ` Sakari Ailus
2020-06-05 13:44   ` Tomasz Figa
2020-06-06  6:42     ` Dongchun Zhu

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200605105412.18813-2-dongchun.zhu@mediatek.com \
    --to=dongchun.zhu@mediatek.com \
    --cc=andriy.shevchenko@linux.intel.com \
    --cc=bgolaszewski@baylibre.com \
    --cc=bingbu.cao@intel.com \
    --cc=devicetree@vger.kernel.org \
    --cc=drinkcat@chromium.org \
    --cc=linus.walleij@linaro.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-media@vger.kernel.org \
    --cc=linux-mediatek@lists.infradead.org \
    --cc=louis.kuo@mediatek.com \
    --cc=mark.rutland@arm.com \
    --cc=matthias.bgg@gmail.com \
    --cc=mchehab@kernel.org \
    --cc=robh+dt@kernel.org \
    --cc=sakari.ailus@linux.intel.com \
    --cc=shengnan.wang@mediatek.com \
    --cc=sj.huang@mediatek.com \
    --cc=srv_heupstream@mediatek.com \
    --cc=tfiga@chromium.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Linux-Media Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-media/0 linux-media/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-media linux-media/ https://lore.kernel.org/linux-media \
		linux-media@vger.kernel.org
	public-inbox-index linux-media

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-media


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git