linux-media.vger.kernel.org archive mirror
 help / color / mirror / 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: [V6, 1/2] media: dt-bindings: media: i2c: Document DW9768 bindings
Date: Mon, 18 May 2020 21:27:30 +0800	[thread overview]
Message-ID: <20200518132731.20855-2-dongchun.zhu@mediatek.com> (raw)
In-Reply-To: <20200518132731.20855-1-dongchun.zhu@mediatek.com>

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

Signed-off-by: Dongchun Zhu <dongchun.zhu@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 .../bindings/media/i2c/dongwoon,dw9768.yaml        | 105 +++++++++++++++++++++
 MAINTAINERS                                        |   7 ++
 2 files changed, 112 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..b909e83
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/i2c/dongwoon,dw9768.yaml
@@ -0,0 +1,105 @@
+# 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:
+      # for DW9768 VCM
+      - dongwoon,dw9768
+      # for GT9769 VCM
+      - giantec,gt9769
+
+  reg:
+    maxItems: 1
+
+  vin-supply:
+    description:
+      Definition of the regulator used as I2C I/O interface power supply.
+
+  vdd-supply:
+    description:
+      Definition of the regulator used as VCM chip power supply.
+
+  dongwoon,aac-mode:
+    description:
+      Indication of AAC mode select.
+    allOf:
+      - $ref: "/schemas/types.yaml#/definitions/uint32"
+      - enum:
+          - 0    #  Direct (default)
+          - 1    #  AAC2 (operation time# 0.48 x Tvib)
+          - 2    #  AAC3 (operation time# 0.70 x Tvib)
+          - 3    #  AAC4 (operation time# 0.75 x Tvib)
+          - 4    #  Reserved
+          - 5    #  AAC8 (operation time# 1.13 x Tvib)
+          - 6    #  Reserved
+          - 7    #  Reserved
+
+  dongwoon,aac-timing:
+    description:
+      Indication of AAC Timing count, unit of 0.1 milliseconds.
+      Valid values vary from 0 to 63 (default 32).
+    allOf:
+      - $ref: "/schemas/types.yaml#/definitions/uint32"
+
+  dongwoon,clock-dividing-rate:
+    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 (default)
+          - 2    #  Dividing Rate -  1/2
+          - 3    #  Dividing Rate -  1/4
+          - 4    #  Dividing Rate -  8
+          - 5    #  Dividing Rate -  4
+          - 6    #  Dividing Rate -  Reserved
+          - 7    #  Dividing Rate -  Reserved
+
+required:
+  - compatible
+  - reg
+  - vin-supply
+  - vdd-supply
+
+additionalProperties: false
+
+examples:
+  - |
+
+    i2c {
+        clock-frequency = <400000>;
+        #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-mode = <2>;
+            dongwoon,aac-timing = <57>;
+        };
+    };
+
+...
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	other threads:[~2020-05-18 13:29 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-18 13:27 [V6, 0/2] media: i2c: Add support for DW9768 VCM driver Dongchun Zhu
2020-05-18 13:27 ` Dongchun Zhu [this message]
2020-05-18 14:12   ` [V6, 1/2] media: dt-bindings: media: i2c: Document DW9768 bindings Tomasz Figa
2020-05-18 14:31     ` Rob Herring
2020-05-19  3:10       ` Dongchun Zhu
2020-05-18 13:27 ` [V6, 2/2] media: i2c: dw9768: Add DW9768 VCM driver Dongchun Zhu
2020-05-21 19:51   ` Tomasz Figa
2020-05-22  9:26     ` Dongchun Zhu
2020-05-25 11:45       ` Tomasz Figa
2020-05-27  9:01         ` Dongchun Zhu
2020-06-01 18:47           ` Tomasz Figa
2020-06-04  2:33             ` Dongchun Zhu
2020-06-04  8:10               ` Sakari Ailus
2020-06-05  3:28                 ` Dongchun Zhu
2020-05-27 21:11         ` Sakari Ailus

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=20200518132731.20855-2-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
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).