From patchwork Thu May 12 14:59:15 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Todor Tomov X-Patchwork-Id: 9082581 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id D236ABF440 for ; Thu, 12 May 2016 15:00:02 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 07B6420253 for ; Thu, 12 May 2016 15:00:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 662AB2020F for ; Thu, 12 May 2016 14:59:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752098AbcELO7w (ORCPT ); Thu, 12 May 2016 10:59:52 -0400 Received: from ns.mm-sol.com ([37.157.136.199]:42453 "EHLO extserv.mm-sol.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751675AbcELO7u (ORCPT ); Thu, 12 May 2016 10:59:50 -0400 Received: from mms-0439.ent.mm-sol.com (unknown [37.157.136.206]) by extserv.mm-sol.com (Postfix) with ESMTPSA id 73F0ECA45; Thu, 12 May 2016 17:59:47 +0300 (EEST) From: Todor Tomov To: linux-media@vger.kernel.org Cc: laurent.pinchart@ideasonboard.com, Todor Tomov Subject: [PATCH] media: Add a driver for the ov5645 camera sensor. Date: Thu, 12 May 2016 17:59:15 +0300 Message-Id: <1463065155-26337-1-git-send-email-todor.tomov@linaro.org> X-Mailer: git-send-email 1.9.1 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-8.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The ov5645 sensor from Omnivision supports up to 2592x1944 and CSI2 interface. The driver adds support for the following modes: - 1280x960 - 1920x1080 - 2592x1944 Output format is packed 8bit UYVY. Signed-off-by: Todor Tomov --- .../devicetree/bindings/media/i2c/ov5645.txt | 54 + drivers/media/i2c/Kconfig | 11 + drivers/media/i2c/Makefile | 1 + drivers/media/i2c/ov5645.c | 1344 ++++++++++++++++++++ 4 files changed, 1410 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/ov5645.txt create mode 100644 drivers/media/i2c/ov5645.c diff --git a/Documentation/devicetree/bindings/media/i2c/ov5645.txt b/Documentation/devicetree/bindings/media/i2c/ov5645.txt new file mode 100644 index 0000000..1d65fa8 --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/ov5645.txt @@ -0,0 +1,54 @@ +* Omnivision 1/4-Inch 5Mp CMOS Digital Image Sensor + +The Omnivision OV5645 is a 1/4-Inch CMOS active pixel digital image sensor with +an active array size of 2592H x 1944V. It is programmable through a serial SCCB +interface. + +Required Properties: +- compatible: value should be "ovti,ov5645" +- clocks: reference to the xclk clock +- clock-names: should be "xclk" +- clock-rates: the xclk clock frequency + +Optional Properties: +- reset-gpio: Chip reset GPIO +- pwdn-gpio: Chip power down GPIO +- DOVDD-supply: Chip IO regulator +- DVDD-supply: Chip core regulator +- AVDD-supply: Chip analog regulator + +The device node must contain one 'port' child node for its digital output +video port, in accordance with the video interface bindings defined in +Documentation/devicetree/bindings/media/video-interfaces.txt. + +Example: + + &i2c1 { + ... + + ov5645: ov5645@78 { + compatible = "ovti,ov5645"; + reg = <0x78>; + + pwdn-gpio = <&gpio1 6 GPIO_ACTIVE_LOW>; + reset-gpio = <&gpio5 20 GPIO_ACTIVE_LOW>; + pinctrl-names = "default"; + pinctrl-0 = <&camera_rear_default>; + + clocks = <&clks 200>; + clock-names = "xclk"; + clock-rates = <23880000>; + + DOVDD-supply = <&camera_dovdd_1v8>; + AVDD-supply = <&camera_avdd_2v8>; + DVDD-supply = <&camera_dvdd_1v2>; + + port { + ov5645_ep: endpoint { + clock-lanes = <1>; + data-lanes = <0 2>; + remote-endpoint = <&csi0_ep>; + }; + }; + }; + }; diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index 521bbf1..aa17eba 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -490,6 +490,17 @@ config VIDEO_OV2659 To compile this driver as a module, choose M here: the module will be called ov2659. +config VIDEO_OV5645 + tristate "OmniVision OV5645 sensor support" + depends on I2C && VIDEO_V4L2 + depends on MEDIA_CAMERA_SUPPORT + ---help--- + This is a Video4Linux2 sensor-level driver for the OmniVision + OV5645 camera. + + To compile this driver as a module, choose M here: the + module will be called ov5645. + config VIDEO_OV7640 tristate "OmniVision OV7640 sensor support" depends on I2C && VIDEO_V4L2 diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index 07db257..29003df 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -54,6 +54,7 @@ obj-$(CONFIG_VIDEO_VP27SMPX) += vp27smpx.o obj-$(CONFIG_VIDEO_SONY_BTF_MPX) += sony-btf-mpx.o obj-$(CONFIG_VIDEO_UPD64031A) += upd64031a.o obj-$(CONFIG_VIDEO_UPD64083) += upd64083.o +obj-$(CONFIG_VIDEO_OV5645) += ov5645.o obj-$(CONFIG_VIDEO_OV7640) += ov7640.o obj-$(CONFIG_VIDEO_OV7670) += ov7670.o obj-$(CONFIG_VIDEO_OV9650) += ov9650.o diff --git a/drivers/media/i2c/ov5645.c b/drivers/media/i2c/ov5645.c new file mode 100644 index 0000000..bae07e4 --- /dev/null +++ b/drivers/media/i2c/ov5645.c @@ -0,0 +1,1344 @@ +/* + * Driver for the OV5645 camera sensor. + * + * Copyright (c) 2011-2015, The Linux Foundation. All rights reserved. + * Copyright (C) 2015 By Tech Design S.L. All Rights Reserved. + * Copyright (C) 2012-2013 Freescale Semiconductor, Inc. All Rights Reserved. + * + * Based on: + * - the OV5645 driver from QC msm-3.10 kernel on codeaurora.org: + * https://us.codeaurora.org/cgit/quic/la/kernel/msm-3.10/tree/drivers/ + * media/platform/msm/camera_v2/sensor/ov5645.c?h=LA.BR.1.2.4_rb1.41 + * - the OV5640 driver posted on linux-media: + * https://www.mail-archive.com/linux-media%40vger.kernel.org/msg92671.html + */ + +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define OV5645_VOLTAGE_ANALOG 2800000 +#define OV5645_VOLTAGE_DIGITAL_CORE 1500000 +#define OV5645_VOLTAGE_DIGITAL_IO 1800000 + +#define OV5645_XCLK_MIN 6000000 +#define OV5645_XCLK_MAX 24000000 + +#define OV5645_SYSTEM_CTRL0 0x3008 +#define OV5645_SYSTEM_CTRL0_START 0x02 +#define OV5645_SYSTEM_CTRL0_STOP 0x42 +#define OV5645_CHIP_ID_HIGH_REG 0x300A +#define OV5645_CHIP_ID_HIGH 0x56 +#define OV5645_CHIP_ID_LOW_REG 0x300B +#define OV5645_CHIP_ID_LOW 0x45 +#define OV5645_AWB_MANUAL_CONTROL 0x3406 +#define OV5645_AWB_MANUAL_ENABLE (1 << 0) +#define OV5645_AEC_PK_MANUAL 0x3503 +#define OV5645_AEC_MANUAL_ENABLE (1 << 0) +#define OV5645_AGC_MANUAL_ENABLE (1 << 1) +#define OV5645_TIMING_TC_REG20 0x3820 +#define OV5645_SENSOR_VFLIP (1 << 1) +#define OV5645_ISP_VFLIP (1 << 2) +#define OV5645_TIMING_TC_REG21 0x3821 +#define OV5645_SENSOR_MIRROR (1 << 1) +#define OV5645_PRE_ISP_TEST_SETTING_1 0x503d +#define OV5645_TEST_PATTERN_MASK 0x3 +#define OV5645_SET_TEST_PATTERN(x) ((x) & OV5645_TEST_PATTERN_MASK) +#define OV5645_TEST_PATTERN_ENABLE (1 << 7) +#define OV5645_SDE_SAT_U 0x5583 +#define OV5645_SDE_SAT_V 0x5584 + +enum ov5645_mode { + ov5645_mode_min = 0, + ov5645_mode_sxga_1280_960 = 0, + ov5645_mode_1080p_1920_1080 = 1, + ov5645_mode_full_2592_1944 = 2, + ov5645_mode_max = 2, +}; + +struct reg_value { + u16 reg; + u8 val; +}; + +struct ov5645_mode_info { + enum ov5645_mode mode; + u32 width; + u32 height; + struct reg_value *init_data_ptr; + u32 init_data_size; +}; + +struct ov5645 { + struct i2c_client *i2c_client; + struct device *dev; + struct v4l2_subdev sd; + struct media_pad pad; + struct v4l2_of_endpoint ep; + struct v4l2_mbus_framefmt fmt; + struct v4l2_rect crop; + struct clk *xclk; + int xclk_freq; + + struct regulator *io_regulator; + struct regulator *core_regulator; + struct regulator *analog_regulator; + + enum ov5645_mode current_mode; + + /* Cached control values */ + struct v4l2_ctrl_handler ctrls; + struct v4l2_ctrl *saturation; + struct v4l2_ctrl *hflip; + struct v4l2_ctrl *vflip; + struct v4l2_ctrl *autogain; + struct v4l2_ctrl *autoexposure; + struct v4l2_ctrl *awb; + struct v4l2_ctrl *pattern; + + struct mutex power_lock; /* lock to protect power_count */ + int power_count; + + int pwdn_gpio; + int rst_gpio; +}; + +static inline struct ov5645 *to_ov5645(struct v4l2_subdev *sd) +{ + return container_of(sd, struct ov5645, sd); +} + +static struct reg_value ov5645_global_init_setting[] = { + {0x3103, 0x11,}, + {0x3008, 0x82,}, + {0x3008, 0x42,}, + {0x3103, 0x03,}, + {0x3503, 0x07,}, + {0x3002, 0x1c,}, + {0x3006, 0xc3,}, + {0x300e, 0x45,}, + {0x3017, 0x00,}, + {0x3018, 0x00,}, + {0x302e, 0x0b,}, + {0x3037, 0x13,}, + {0x3108, 0x01,}, + {0x3611, 0x06,}, + {0x3500, 0x00,}, + {0x3501, 0x01,}, + {0x3502, 0x00,}, + {0x350a, 0x00,}, + {0x350b, 0x3f,}, + {0x3620, 0x33,}, + {0x3621, 0xe0,}, + {0x3622, 0x01,}, + {0x3630, 0x2e,}, + {0x3631, 0x00,}, + {0x3632, 0x32,}, + {0x3633, 0x52,}, + {0x3634, 0x70,}, + {0x3635, 0x13,}, + {0x3636, 0x03,}, + {0x3703, 0x5a,}, + {0x3704, 0xa0,}, + {0x3705, 0x1a,}, + {0x3709, 0x12,}, + {0x370b, 0x61,}, + {0x370f, 0x10,}, + {0x3715, 0x78,}, + {0x3717, 0x01,}, + {0x371b, 0x20,}, + {0x3731, 0x12,}, + {0x3901, 0x0a,}, + {0x3905, 0x02,}, + {0x3906, 0x10,}, + {0x3719, 0x86,}, + {0x3810, 0x00,}, + {0x3811, 0x10,}, + {0x3812, 0x00,}, + {0x3821, 0x01,}, + {0x3824, 0x01,}, + {0x3826, 0x03,}, + {0x3828, 0x08,}, + {0x3a19, 0xf8,}, + {0x3c01, 0x34,}, + {0x3c04, 0x28,}, + {0x3c05, 0x98,}, + {0x3c07, 0x07,}, + {0x3c09, 0xc2,}, + {0x3c0a, 0x9c,}, + {0x3c0b, 0x40,}, + {0x3c01, 0x34,}, + {0x4001, 0x02,}, + {0x4514, 0x00,}, + {0x4520, 0xb0,}, + {0x460b, 0x37,}, + {0x460c, 0x20,}, + {0x4818, 0x01,}, + {0x481d, 0xf0,}, + {0x481f, 0x50,}, + {0x4823, 0x70,}, + {0x4831, 0x14,}, + {0x5000, 0xa7,}, + {0x5001, 0x83,}, + {0x501d, 0x00,}, + {0x501f, 0x00,}, + {0x503d, 0x00,}, + {0x505c, 0x30,}, + {0x5181, 0x59,}, + {0x5183, 0x00,}, + {0x5191, 0xf0,}, + {0x5192, 0x03,}, + {0x5684, 0x10,}, + {0x5685, 0xa0,}, + {0x5686, 0x0c,}, + {0x5687, 0x78,}, + {0x5a00, 0x08,}, + {0x5a21, 0x00,}, + {0x5a24, 0x00,}, + {0x3008, 0x02,}, + {0x3503, 0x00,}, + {0x5180, 0xff,}, + {0x5181, 0xf2,}, + {0x5182, 0x00,}, + {0x5183, 0x14,}, + {0x5184, 0x25,}, + {0x5185, 0x24,}, + {0x5186, 0x09,}, + {0x5187, 0x09,}, + {0x5188, 0x0a,}, + {0x5189, 0x75,}, + {0x518a, 0x52,}, + {0x518b, 0xea,}, + {0x518c, 0xa8,}, + {0x518d, 0x42,}, + {0x518e, 0x38,}, + {0x518f, 0x56,}, + {0x5190, 0x42,}, + {0x5191, 0xf8,}, + {0x5192, 0x04,}, + {0x5193, 0x70,}, + {0x5194, 0xf0,}, + {0x5195, 0xf0,}, + {0x5196, 0x03,}, + {0x5197, 0x01,}, + {0x5198, 0x04,}, + {0x5199, 0x12,}, + {0x519a, 0x04,}, + {0x519b, 0x00,}, + {0x519c, 0x06,}, + {0x519d, 0x82,}, + {0x519e, 0x38,}, + {0x5381, 0x1e,}, + {0x5382, 0x5b,}, + {0x5383, 0x08,}, + {0x5384, 0x0a,}, + {0x5385, 0x7e,}, + {0x5386, 0x88,}, + {0x5387, 0x7c,}, + {0x5388, 0x6c,}, + {0x5389, 0x10,}, + {0x538a, 0x01,}, + {0x538b, 0x98,}, + {0x5300, 0x08,}, + {0x5301, 0x30,}, + {0x5302, 0x10,}, + {0x5303, 0x00,}, + {0x5304, 0x08,}, + {0x5305, 0x30,}, + {0x5306, 0x08,}, + {0x5307, 0x16,}, + {0x5309, 0x08,}, + {0x530a, 0x30,}, + {0x530b, 0x04,}, + {0x530c, 0x06,}, + {0x5480, 0x01,}, + {0x5481, 0x08,}, + {0x5482, 0x14,}, + {0x5483, 0x28,}, + {0x5484, 0x51,}, + {0x5485, 0x65,}, + {0x5486, 0x71,}, + {0x5487, 0x7d,}, + {0x5488, 0x87,}, + {0x5489, 0x91,}, + {0x548a, 0x9a,}, + {0x548b, 0xaa,}, + {0x548c, 0xb8,}, + {0x548d, 0xcd,}, + {0x548e, 0xdd,}, + {0x548f, 0xea,}, + {0x5490, 0x1d,}, + {0x5580, 0x02,}, + {0x5583, 0x40,}, + {0x5584, 0x10,}, + {0x5589, 0x10,}, + {0x558a, 0x00,}, + {0x558b, 0xf8,}, + {0x5800, 0x3f,}, + {0x5801, 0x16,}, + {0x5802, 0x0e,}, + {0x5803, 0x0d,}, + {0x5804, 0x17,}, + {0x5805, 0x3f,}, + {0x5806, 0x0b,}, + {0x5807, 0x06,}, + {0x5808, 0x04,}, + {0x5809, 0x04,}, + {0x580a, 0x06,}, + {0x580b, 0x0b,}, + {0x580c, 0x09,}, + {0x580d, 0x03,}, + {0x580e, 0x00,}, + {0x580f, 0x00,}, + {0x5810, 0x03,}, + {0x5811, 0x08,}, + {0x5812, 0x0a,}, + {0x5813, 0x03,}, + {0x5814, 0x00,}, + {0x5815, 0x00,}, + {0x5816, 0x04,}, + {0x5817, 0x09,}, + {0x5818, 0x0f,}, + {0x5819, 0x08,}, + {0x581a, 0x06,}, + {0x581b, 0x06,}, + {0x581c, 0x08,}, + {0x581d, 0x0c,}, + {0x581e, 0x3f,}, + {0x581f, 0x1e,}, + {0x5820, 0x12,}, + {0x5821, 0x13,}, + {0x5822, 0x21,}, + {0x5823, 0x3f,}, + {0x5824, 0x68,}, + {0x5825, 0x28,}, + {0x5826, 0x2c,}, + {0x5827, 0x28,}, + {0x5828, 0x08,}, + {0x5829, 0x48,}, + {0x582a, 0x64,}, + {0x582b, 0x62,}, + {0x582c, 0x64,}, + {0x582d, 0x28,}, + {0x582e, 0x46,}, + {0x582f, 0x62,}, + {0x5830, 0x60,}, + {0x5831, 0x62,}, + {0x5832, 0x26,}, + {0x5833, 0x48,}, + {0x5834, 0x66,}, + {0x5835, 0x44,}, + {0x5836, 0x64,}, + {0x5837, 0x28,}, + {0x5838, 0x66,}, + {0x5839, 0x48,}, + {0x583a, 0x2c,}, + {0x583b, 0x28,}, + {0x583c, 0x26,}, + {0x583d, 0xae,}, + {0x5025, 0x00,}, + {0x3a0f, 0x30,}, + {0x3a10, 0x28,}, + {0x3a1b, 0x30,}, + {0x3a1e, 0x26,}, + {0x3a11, 0x60,}, + {0x3a1f, 0x14,}, + {0x0601, 0x02,}, + {0x3008, 0x42,}, + {0x3008, 0x02}, +}; + +static struct reg_value ov5645_setting_sxga[] = { + {0x3612, 0xa9,}, + {0x3614, 0x50,}, + {0x3618, 0x00,}, + {0x3034, 0x18,}, + {0x3035, 0x21,}, + {0x3036, 0x70,}, + {0x3600, 0x09,}, + {0x3601, 0x43,}, + {0x3708, 0x66,}, + {0x370c, 0xc3,}, + {0x3800, 0x00,}, + {0x3801, 0x00,}, + {0x3802, 0x00,}, + {0x3803, 0x06,}, + {0x3804, 0x0a,}, + {0x3805, 0x3f,}, + {0x3806, 0x07,}, + {0x3807, 0x9d,}, + {0x3808, 0x05,}, + {0x3809, 0x00,}, + {0x380a, 0x03,}, + {0x380b, 0xc0,}, + {0x380c, 0x07,}, + {0x380d, 0x68,}, + {0x380e, 0x03,}, + {0x380f, 0xd8,}, + {0x3813, 0x06,}, + {0x3814, 0x31,}, + {0x3815, 0x31,}, + {0x3820, 0x47,}, + {0x3a02, 0x03,}, + {0x3a03, 0xd8,}, + {0x3a08, 0x01,}, + {0x3a09, 0xf8,}, + {0x3a0a, 0x01,}, + {0x3a0b, 0xa4,}, + {0x3a0e, 0x02,}, + {0x3a0d, 0x02,}, + {0x3a14, 0x03,}, + {0x3a15, 0xd8,}, + {0x3a18, 0x00,}, + {0x4004, 0x02,}, + {0x4005, 0x18,}, + {0x4300, 0x32,}, + {0x4202, 0x00,}, +}; + +static struct reg_value ov5645_setting_1080P[] = { + {0x3612, 0xab,}, + {0x3614, 0x50,}, + {0x3618, 0x04,}, + {0x3034, 0x18,}, + {0x3035, 0x11,}, + {0x3036, 0x54,}, + {0x3600, 0x08,}, + {0x3601, 0x33,}, + {0x3708, 0x63,}, + {0x370c, 0xc0,}, + {0x3800, 0x01,}, + {0x3801, 0x50,}, + {0x3802, 0x01,}, + {0x3803, 0xb2,}, + {0x3804, 0x08,}, + {0x3805, 0xef,}, + {0x3806, 0x05,}, + {0x3807, 0xf1,}, + {0x3808, 0x07,}, + {0x3809, 0x80,}, + {0x380a, 0x04,}, + {0x380b, 0x38,}, + {0x380c, 0x09,}, + {0x380d, 0xc4,}, + {0x380e, 0x04,}, + {0x380f, 0x60,}, + {0x3813, 0x04,}, + {0x3814, 0x11,}, + {0x3815, 0x11,}, + {0x3820, 0x47,}, + {0x4514, 0x88,}, + {0x3a02, 0x04,}, + {0x3a03, 0x60,}, + {0x3a08, 0x01,}, + {0x3a09, 0x50,}, + {0x3a0a, 0x01,}, + {0x3a0b, 0x18,}, + {0x3a0e, 0x03,}, + {0x3a0d, 0x04,}, + {0x3a14, 0x04,}, + {0x3a15, 0x60,}, + {0x3a18, 0x00,}, + {0x4004, 0x06,}, + {0x4005, 0x18,}, + {0x4300, 0x32,}, + {0x4202, 0x00,}, + {0x4837, 0x0b,}, +}; + +static struct reg_value ov5645_setting_full[] = { + {0x3612, 0xab,}, + {0x3614, 0x50,}, + {0x3618, 0x04,}, + {0x3034, 0x18,}, + {0x3035, 0x11,}, + {0x3036, 0x54,}, + {0x3600, 0x08,}, + {0x3601, 0x33,}, + {0x3708, 0x63,}, + {0x370c, 0xc0,}, + {0x3800, 0x00,}, + {0x3801, 0x00,}, + {0x3802, 0x00,}, + {0x3803, 0x00,}, + {0x3804, 0x0a,}, + {0x3805, 0x3f,}, + {0x3806, 0x07,}, + {0x3807, 0x9f,}, + {0x3808, 0x0a,}, + {0x3809, 0x20,}, + {0x380a, 0x07,}, + {0x380b, 0x98,}, + {0x380c, 0x0b,}, + {0x380d, 0x1c,}, + {0x380e, 0x07,}, + {0x380f, 0xb0,}, + {0x3813, 0x06,}, + {0x3814, 0x11,}, + {0x3815, 0x11,}, + {0x3820, 0x47,}, + {0x4514, 0x88,}, + {0x3a02, 0x07,}, + {0x3a03, 0xb0,}, + {0x3a08, 0x01,}, + {0x3a09, 0x27,}, + {0x3a0a, 0x00,}, + {0x3a0b, 0xf6,}, + {0x3a0e, 0x06,}, + {0x3a0d, 0x08,}, + {0x3a14, 0x07,}, + {0x3a15, 0xb0,}, + {0x3a18, 0x01,}, + {0x4004, 0x06,}, + {0x4005, 0x18,}, + {0x4300, 0x32,}, + {0x4837, 0x0b,}, + {0x4202, 0x00,}, +}; + +static struct ov5645_mode_info ov5645_mode_info_data[ov5645_mode_max + 1] = { + {ov5645_mode_sxga_1280_960, 1280, 960, + ov5645_setting_sxga, + ARRAY_SIZE(ov5645_setting_sxga)}, + {ov5645_mode_1080p_1920_1080, 1920, 1080, + ov5645_setting_1080P, + ARRAY_SIZE(ov5645_setting_1080P)}, + {ov5645_mode_full_2592_1944, 2592, 1944, + ov5645_setting_full, + ARRAY_SIZE(ov5645_setting_full)}, +}; + +static void ov5645_regulators_get(struct ov5645 *ov5645) +{ + ov5645->io_regulator = devm_regulator_get(ov5645->dev, "DOVDD"); + if (IS_ERR(ov5645->io_regulator)) { + ov5645->io_regulator = NULL; + dev_dbg(ov5645->dev, "cannot get io voltage\n"); + } else { + regulator_set_voltage(ov5645->io_regulator, + OV5645_VOLTAGE_DIGITAL_IO, + OV5645_VOLTAGE_DIGITAL_IO); + } + + ov5645->core_regulator = devm_regulator_get(ov5645->dev, "DVDD"); + if (IS_ERR(ov5645->core_regulator)) { + ov5645->core_regulator = NULL; + dev_dbg(ov5645->dev, "cannot get core voltage\n"); + } else { + regulator_set_voltage(ov5645->core_regulator, + OV5645_VOLTAGE_DIGITAL_CORE, + OV5645_VOLTAGE_DIGITAL_CORE); + } + + ov5645->analog_regulator = devm_regulator_get(ov5645->dev, "AVDD"); + if (IS_ERR(ov5645->analog_regulator)) { + ov5645->analog_regulator = NULL; + dev_dbg(ov5645->dev, "cannot get analog voltage\n"); + } else { + regulator_set_voltage(ov5645->analog_regulator, + OV5645_VOLTAGE_ANALOG, + OV5645_VOLTAGE_ANALOG); + } +} + +static int ov5645_regulators_enable(struct ov5645 *ov5645) +{ + int ret = 0; + + if (ov5645->io_regulator) { + ret = regulator_enable(ov5645->io_regulator); + if (ret < 0) { + dev_err(ov5645->dev, "set io voltage failed\n"); + return ret; + } + } + + if (ov5645->core_regulator) { + ret = regulator_enable(ov5645->core_regulator); + if (ret) { + dev_err(ov5645->dev, "set core voltage failed\n"); + goto err_disable_io; + } + } + + if (ov5645->analog_regulator) { + ret = regulator_enable(ov5645->analog_regulator); + if (ret) { + dev_err(ov5645->dev, "set analog voltage failed\n"); + goto err_disable_core; + } + } + + return 0; + +err_disable_core: + if (ov5645->core_regulator) + regulator_disable(ov5645->core_regulator); +err_disable_io: + if (ov5645->io_regulator) + regulator_disable(ov5645->io_regulator); + + return ret; +} + +static void ov5645_regulators_disable(struct ov5645 *ov5645) +{ + if (ov5645->analog_regulator) + regulator_disable(ov5645->analog_regulator); + if (ov5645->core_regulator) + regulator_disable(ov5645->core_regulator); + if (ov5645->io_regulator) + regulator_disable(ov5645->io_regulator); +} + +static s32 ov5645_write_reg(struct ov5645 *ov5645, u16 reg, u8 val) +{ + u8 regbuf[3] = {0}; + + regbuf[0] = reg >> 8; + regbuf[1] = reg & 0xff; + regbuf[2] = val; + + if (i2c_master_send(ov5645->i2c_client, regbuf, 3) < 0) { + dev_err(ov5645->dev, "%s:write reg error:reg=%x,val=%x\n", + __func__, reg, val); + return -1; + } + + return 0; +} + +static s32 ov5645_read_reg(struct ov5645 *ov5645, u16 reg, u8 *val) +{ + u8 regbuf[2] = {0}; + u8 tmpval = 0; + + regbuf[0] = reg >> 8; + regbuf[1] = reg & 0xff; + + if (i2c_master_send(ov5645->i2c_client, regbuf, 2) != 2) { + dev_err(ov5645->dev, "%s:write reg error:reg=%x\n", + __func__, reg); + return -1; + } + + if (i2c_master_recv(ov5645->i2c_client, &tmpval, 1) != 1) { + dev_err(ov5645->dev, "%s:read reg error:reg=%x,val=%x\n", + __func__, reg, tmpval); + return -1; + } + + *val = tmpval; + + return tmpval; +} + +static int ov5645_set_aec_mode(struct ov5645 *ov5645, u32 mode) +{ + u8 val; + + ov5645_read_reg(ov5645, OV5645_AEC_PK_MANUAL, &val); + if (mode == V4L2_EXPOSURE_AUTO) { + val |= OV5645_AEC_MANUAL_ENABLE; + } else { /* V4L2_EXPOSURE_MANUAL */ + val &= ~OV5645_AEC_MANUAL_ENABLE; + } + + dev_dbg(ov5645->dev, "%s: mode = %d\n", __func__, mode); + + return ov5645_write_reg(ov5645, OV5645_AEC_PK_MANUAL, val); +} + +static int ov5645_set_agc_mode(struct ov5645 *ov5645, u32 enable) +{ + u8 val; + + ov5645_read_reg(ov5645, OV5645_AEC_PK_MANUAL, &val); + if (!enable) + val |= OV5645_AGC_MANUAL_ENABLE; + else + val &= ~OV5645_AGC_MANUAL_ENABLE; + + dev_dbg(ov5645->dev, "%s: enable = %d\n", __func__, enable); + + return ov5645_write_reg(ov5645, OV5645_AEC_PK_MANUAL, val); +} + +static int ov5645_set_register_array(struct ov5645 *ov5645, + struct reg_value *settings, + s32 num_settings) +{ + register u16 reg = 0; + register u8 val = 0; + int i, ret = 0; + + for (i = 0; i < num_settings; ++i, ++settings) { + reg = settings->reg; + val = settings->val; + + ret = ov5645_write_reg(ov5645, reg, val); + if (ret < 0) + goto err; + } +err: + return ret; +} + +static int ov5645_init(struct ov5645 *ov5645) +{ + struct reg_value *settings = NULL; + int num_settings = 0; + int ret; + + settings = ov5645_global_init_setting; + num_settings = ARRAY_SIZE(ov5645_global_init_setting); + ret = ov5645_set_register_array(ov5645, settings, num_settings); + if (ret < 0) + return ret; + + return 0; +} + +static int ov5645_change_mode(struct ov5645 *ov5645, enum ov5645_mode mode) +{ + struct reg_value *settings = NULL; + s32 num_settings = 0; + int ret = 0; + + settings = ov5645_mode_info_data[mode].init_data_ptr; + num_settings = ov5645_mode_info_data[mode].init_data_size; + ret = ov5645_set_register_array(ov5645, settings, num_settings); + + return ret; +} + +static void __ov5645_set_power(struct ov5645 *ov5645, bool on) +{ + dev_dbg(ov5645->dev, "%s: on = %d\n", __func__, on); + + if (on) { + clk_prepare_enable(ov5645->xclk); + ov5645_regulators_enable(ov5645); + usleep_range(5000, 15000); + if (ov5645->pwdn_gpio) + gpio_set_value(ov5645->pwdn_gpio, 1); + usleep_range(1000, 2000); + if (ov5645->rst_gpio) + gpio_set_value(ov5645->rst_gpio, 1); + msleep(20); + } else { + if (ov5645->rst_gpio) + gpio_set_value(ov5645->rst_gpio, 0); + if (ov5645->pwdn_gpio) + gpio_set_value(ov5645->pwdn_gpio, 0); + ov5645_regulators_disable(ov5645); + clk_disable_unprepare(ov5645->xclk); + } +} + +static int ov5645_s_power(struct v4l2_subdev *sd, int on) +{ + struct ov5645 *ov5645 = to_ov5645(sd); + int ret = 0; + + dev_dbg(ov5645->dev, "%s: on = %d\n", __func__, on); + + mutex_lock(&ov5645->power_lock); + + /* If the power count is modified from 0 to != 0 or from != 0 to 0, + * update the power state. + */ + if (ov5645->power_count == !on) + __ov5645_set_power(ov5645, !!on); + + if (on && ov5645->power_count == 0) { + ret = ov5645_init(ov5645); + if (ret < 0) { + dev_err(ov5645->dev, "could not set init registers\n"); + goto exit; + } + + ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0, + OV5645_SYSTEM_CTRL0_STOP); + } + + /* Update the power count. */ + ov5645->power_count += on ? 1 : -1; + WARN_ON(ov5645->power_count < 0); + +exit: + mutex_unlock(&ov5645->power_lock); + + return ret; +} + + +static int ov5645_set_saturation(struct ov5645 *ov5645, s32 value) +{ + u32 reg_value = (value * 0x10) + 0x40; + int ret = 0; + + ret |= ov5645_write_reg(ov5645, OV5645_SDE_SAT_U, reg_value); + ret |= ov5645_write_reg(ov5645, OV5645_SDE_SAT_V, reg_value); + + dev_dbg(ov5645->dev, "%s: value = %d\n", __func__, value); + + return ret; +} + +static int ov5645_set_hflip(struct ov5645 *ov5645, s32 value) +{ + u8 val; + + ov5645_read_reg(ov5645, OV5645_TIMING_TC_REG21, &val); + if (value == 0) + val &= ~(OV5645_SENSOR_MIRROR); + else + val |= (OV5645_SENSOR_MIRROR); + + dev_dbg(ov5645->dev, "%s: value = %d\n", __func__, value); + + return ov5645_write_reg(ov5645, OV5645_TIMING_TC_REG21, val); +} + +static int ov5645_set_vflip(struct ov5645 *ov5645, s32 value) +{ + u8 val; + + ov5645_read_reg(ov5645, OV5645_TIMING_TC_REG20, &val); + if (value == 0) + val |= (OV5645_SENSOR_VFLIP | OV5645_ISP_VFLIP); + else + val &= ~(OV5645_SENSOR_VFLIP | OV5645_ISP_VFLIP); + + dev_dbg(ov5645->dev, "%s: value = %d\n", __func__, value); + + return ov5645_write_reg(ov5645, OV5645_TIMING_TC_REG20, val); +} + +static int ov5645_set_test_pattern(struct ov5645 *ov5645, s32 value) +{ + u8 val; + + ov5645_read_reg(ov5645, OV5645_PRE_ISP_TEST_SETTING_1, &val); + + if (value) { + val &= ~OV5645_SET_TEST_PATTERN(OV5645_TEST_PATTERN_MASK); + val |= OV5645_SET_TEST_PATTERN(value - 1); + val |= OV5645_TEST_PATTERN_ENABLE; + } else { + val &= ~OV5645_TEST_PATTERN_ENABLE; + } + + dev_dbg(ov5645->dev, "%s: value = %d\n", __func__, value); + + return ov5645_write_reg(ov5645, OV5645_PRE_ISP_TEST_SETTING_1, val); +} + +static const char * const ov5645_test_pattern_menu[] = { + "Disabled", + "Vertical Color Bars", + "Random Data", + "Color Square", + "Black Image", +}; + +static int ov5645_set_awb(struct ov5645 *ov5645, s32 enable_auto) +{ + u8 val; + + ov5645_read_reg(ov5645, OV5645_AWB_MANUAL_CONTROL, &val); + if (enable_auto) + val &= ~OV5645_AWB_MANUAL_ENABLE; + else + val |= OV5645_AWB_MANUAL_ENABLE; + + dev_dbg(ov5645->dev, "%s: enable_auto = %d\n", __func__, enable_auto); + + return ov5645_write_reg(ov5645, OV5645_AWB_MANUAL_CONTROL, val); +} + +static int ov5645_s_ctrl(struct v4l2_ctrl *ctrl) +{ + struct ov5645 *ov5645 = container_of(ctrl->handler, + struct ov5645, ctrls); + int ret = -EINVAL; + + switch (ctrl->id) { + case V4L2_CID_SATURATION: + ret = ov5645_set_saturation(ov5645, ctrl->val); + break; + case V4L2_CID_AUTO_WHITE_BALANCE: + ret = ov5645_set_awb(ov5645, ctrl->val); + break; + case V4L2_CID_AUTOGAIN: + ret = ov5645_set_agc_mode(ov5645, ctrl->val); + break; + case V4L2_CID_EXPOSURE_AUTO: + ret = ov5645_set_aec_mode(ov5645, ctrl->val); + break; + case V4L2_CID_TEST_PATTERN: + ret = ov5645_set_test_pattern(ov5645, ctrl->val); + break; + case V4L2_CID_HFLIP: + ret = ov5645_set_hflip(ov5645, ctrl->val); + break; + case V4L2_CID_VFLIP: + ret = ov5645_set_vflip(ov5645, ctrl->val); + break; + } + + return ret; +} + +static struct v4l2_ctrl_ops ov5645_ctrl_ops = { + .s_ctrl = ov5645_s_ctrl, +}; + +static int ov5645_enum_mbus_code(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_mbus_code_enum *code) +{ + struct ov5645 *ov5645 = to_ov5645(sd); + + if (code->index > 0) + return -EINVAL; + + code->code = ov5645->fmt.code; + + return 0; +} + +static int ov5645_enum_frame_size(struct v4l2_subdev *subdev, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_frame_size_enum *fse) +{ + if (fse->index >= ov5645_mode_max) + return -EINVAL; + + fse->min_width = ov5645_mode_info_data[fse->index].width; + fse->max_width = ov5645_mode_info_data[fse->index].width; + fse->min_height = ov5645_mode_info_data[fse->index].height; + fse->max_height = ov5645_mode_info_data[fse->index].height; + + return 0; +} + +static struct v4l2_mbus_framefmt * +__ov5645_get_pad_format(struct ov5645 *ov5645, + struct v4l2_subdev_pad_config *cfg, + unsigned int pad, + enum v4l2_subdev_format_whence which) +{ + switch (which) { + case V4L2_SUBDEV_FORMAT_TRY: + return v4l2_subdev_get_try_format(&ov5645->sd, cfg, pad); + case V4L2_SUBDEV_FORMAT_ACTIVE: + return &ov5645->fmt; + default: + return NULL; + } +} + +static int ov5645_get_format(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct ov5645 *ov5645 = to_ov5645(sd); + + format->format = *__ov5645_get_pad_format(ov5645, cfg, format->pad, + format->which); + return 0; +} + +static struct v4l2_rect * +__ov5645_get_pad_crop(struct ov5645 *ov5645, struct v4l2_subdev_pad_config *cfg, + unsigned int pad, enum v4l2_subdev_format_whence which) +{ + switch (which) { + case V4L2_SUBDEV_FORMAT_TRY: + return v4l2_subdev_get_try_crop(&ov5645->sd, cfg, pad); + case V4L2_SUBDEV_FORMAT_ACTIVE: + return &ov5645->crop; + default: + return NULL; + } +} + +static enum ov5645_mode ov5645_find_nearest_mode(struct ov5645 *ov5645, + int width, int height) +{ + int i; + + for (i = ov5645_mode_max; i >= 0; i--) { + if (ov5645_mode_info_data[i].width <= width && + ov5645_mode_info_data[i].height <= height) + break; + } + + if (i < 0) + i = 0; + + return (enum ov5645_mode)i; +} + +static int ov5645_set_format(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_format *format) +{ + struct ov5645 *ov5645 = to_ov5645(sd); + struct v4l2_mbus_framefmt *__format; + struct v4l2_rect *__crop; + enum ov5645_mode new_mode; + + __crop = __ov5645_get_pad_crop(ov5645, cfg, format->pad, + format->which); + + new_mode = ov5645_find_nearest_mode(ov5645, + format->format.width, format->format.height); + __crop->width = ov5645_mode_info_data[new_mode].width; + __crop->height = ov5645_mode_info_data[new_mode].height; + + ov5645->current_mode = new_mode; + + __format = __ov5645_get_pad_format(ov5645, cfg, format->pad, + format->which); + __format->width = __crop->width; + __format->height = __crop->height; + + return 0; +} + +static int ov5645_get_selection(struct v4l2_subdev *sd, + struct v4l2_subdev_pad_config *cfg, + struct v4l2_subdev_selection *sel) +{ + struct ov5645 *ov5645 = to_ov5645(sd); + + if (sel->target != V4L2_SEL_TGT_CROP) + return -EINVAL; + + sel->r = *__ov5645_get_pad_crop(ov5645, cfg, sel->pad, + sel->which); + return 0; +} + +static int ov5645_registered(struct v4l2_subdev *subdev) +{ + struct i2c_client *client = v4l2_get_subdevdata(subdev); + struct ov5645 *ov5645 = to_ov5645(subdev); + u8 chip_id_high, chip_id_low; + int ret; + + ov5645_s_power(&ov5645->sd, true); + + ret = ov5645_read_reg(ov5645, OV5645_CHIP_ID_HIGH_REG, &chip_id_high); + if (ret < 0 || chip_id_high != OV5645_CHIP_ID_HIGH) { + dev_err(ov5645->dev, "could not read ID high\n"); + ret = -ENODEV; + goto reg_power_off; + } + ret = ov5645_read_reg(ov5645, OV5645_CHIP_ID_LOW_REG, &chip_id_low); + if (ret < 0 || chip_id_low != OV5645_CHIP_ID_LOW) { + dev_err(ov5645->dev, "could not read ID low\n"); + ret = -ENODEV; + goto reg_power_off; + } + + dev_info(&client->dev, "OV5645 detected at address 0x%02x\n", + client->addr); + + ov5645_s_power(&ov5645->sd, false); + + return 0; + +reg_power_off: + ov5645_s_power(&ov5645->sd, false); + return ret; +} + +static int ov5645_open(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh) +{ + return ov5645_s_power(subdev, true); +} + +static int ov5645_close(struct v4l2_subdev *subdev, struct v4l2_subdev_fh *fh) +{ + return ov5645_s_power(subdev, false); +} + +static int ov5645_s_stream(struct v4l2_subdev *subdev, int enable) +{ + struct ov5645 *ov5645 = to_ov5645(subdev); + int ret; + + dev_dbg(ov5645->dev, "%s: enable = %d\n", __func__, enable); + + if (enable) { + ret = ov5645_change_mode(ov5645, ov5645->current_mode); + if (ret < 0) { + dev_err(ov5645->dev, "could not set mode %d\n", + ov5645->current_mode); + return ret; + } + ret = v4l2_ctrl_handler_setup(&ov5645->ctrls); + if (ret < 0) { + dev_err(ov5645->dev, "could not sync v4l2 controls\n"); + return ret; + } + ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0, + OV5645_SYSTEM_CTRL0_START); + } else { + ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0, + OV5645_SYSTEM_CTRL0_STOP); + } + + return 0; +} + +static struct v4l2_subdev_core_ops ov5645_core_ops = { + .s_power = ov5645_s_power, +}; + +static struct v4l2_subdev_video_ops ov5645_video_ops = { + .s_stream = ov5645_s_stream, +}; + +static struct v4l2_subdev_pad_ops ov5645_subdev_pad_ops = { + .enum_mbus_code = ov5645_enum_mbus_code, + .enum_frame_size = ov5645_enum_frame_size, + .get_fmt = ov5645_get_format, + .set_fmt = ov5645_set_format, + .get_selection = ov5645_get_selection, +}; + +static struct v4l2_subdev_ops ov5645_subdev_ops = { + .core = &ov5645_core_ops, + .video = &ov5645_video_ops, + .pad = &ov5645_subdev_pad_ops, +}; + +static const struct v4l2_subdev_internal_ops ov5645_subdev_internal_ops = { + .registered = ov5645_registered, + .open = ov5645_open, + .close = ov5645_close, +}; + +static int ov5645_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct device *dev = &client->dev; + struct device_node *endpoint; + struct ov5645 *ov5645; + int ret = 0; + + ov5645 = devm_kzalloc(dev, sizeof(struct ov5645), GFP_KERNEL); + if (!ov5645) + return -ENOMEM; + + ov5645->i2c_client = client; + ov5645->dev = dev; + ov5645->fmt.code = MEDIA_BUS_FMT_UYVY8_2X8; + ov5645->fmt.width = 1920; + ov5645->fmt.height = 1080; + ov5645->fmt.field = V4L2_FIELD_NONE; + ov5645->current_mode = ov5645_mode_1080p_1920_1080; + + endpoint = of_graph_get_next_endpoint(dev->of_node, NULL); + if (!endpoint) { + dev_err(dev, "endpoint node not found\n"); + return -EINVAL; + } + + v4l2_of_parse_endpoint(endpoint, &ov5645->ep); + if (ov5645->ep.bus_type != V4L2_MBUS_CSI2) { + dev_err(dev, "invalid bus type, must be CSI2\n"); + of_node_put(endpoint); + return -EINVAL; + } + of_node_put(endpoint); + + /* get system clock (xclk) frequency */ + ret = of_property_read_u32(dev->of_node, "clock-rates", + &ov5645->xclk_freq); + if (!ret) { + if (ov5645->xclk_freq < OV5645_XCLK_MIN || + ov5645->xclk_freq > OV5645_XCLK_MAX) { + dev_err(dev, "invalid xclk frequency: %d\n", + ov5645->xclk_freq); + return -EINVAL; + } + } + + /* get system clock (xclk) */ + ov5645->xclk = devm_clk_get(dev, "xclk"); + if (IS_ERR(ov5645->xclk)) { + dev_err(dev, "could not get xclk"); + return -EINVAL; + } + clk_set_rate(ov5645->xclk, ov5645->xclk_freq); + + ov5645_regulators_get(ov5645); + + ret = of_get_named_gpio(dev->of_node, "reset-gpio", 0); + if (!gpio_is_valid(ret)) { + dev_dbg(dev, "no reset pin available\n"); + ov5645->rst_gpio = 0; + } else { + ov5645->rst_gpio = ret; + } + + if (ov5645->rst_gpio) { + ret = devm_gpio_request_one(dev, ov5645->rst_gpio, + GPIOF_OUT_INIT_LOW, "ov5645-reset"); + if (ret < 0) { + dev_err(dev, "could not request reset gpio\n"); + return ret; + } + } + + ret = of_get_named_gpio(dev->of_node, "pwdn-gpio", 0); + if (!gpio_is_valid(ret)) { + dev_dbg(dev, "no powerdown pin available\n"); + ov5645->pwdn_gpio = 0; + } else { + ov5645->pwdn_gpio = ret; + } + + if (ov5645->pwdn_gpio) { + ret = devm_gpio_request_one(dev, ov5645->pwdn_gpio, + GPIOF_OUT_INIT_LOW, "ov5645-pwdn"); + if (ret < 0) { + dev_err(dev, "could not request powerdown gpio\n"); + return ret; + } + } + + mutex_init(&ov5645->power_lock); + + v4l2_ctrl_handler_init(&ov5645->ctrls, 7); + ov5645->saturation = v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops, + V4L2_CID_SATURATION, -4, 4, 1, 0); + ov5645->hflip = v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops, + V4L2_CID_HFLIP, 0, 1, 1, 0); + ov5645->vflip = v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops, + V4L2_CID_VFLIP, 0, 1, 1, 0); + ov5645->autogain = v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops, + V4L2_CID_AUTOGAIN, 0, 1, 1, 1); + ov5645->autoexposure = v4l2_ctrl_new_std_menu(&ov5645->ctrls, + &ov5645_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, + V4L2_EXPOSURE_MANUAL, 0, V4L2_EXPOSURE_AUTO); + ov5645->awb = v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops, + V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1); + ov5645->pattern = v4l2_ctrl_new_std_menu_items(&ov5645->ctrls, + &ov5645_ctrl_ops, V4L2_CID_TEST_PATTERN, + ARRAY_SIZE(ov5645_test_pattern_menu) - 1, 0, 0, + ov5645_test_pattern_menu); + + ov5645->sd.ctrl_handler = &ov5645->ctrls; + + if (ov5645->ctrls.error) { + dev_err(dev, "%s: control initialization error %d\n", + __func__, ov5645->ctrls.error); + ret = ov5645->ctrls.error; + goto free_ctrl; + } + + v4l2_i2c_subdev_init(&ov5645->sd, client, &ov5645_subdev_ops); + ov5645->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + ov5645->pad.flags = MEDIA_PAD_FL_SOURCE; + ov5645->sd.internal_ops = &ov5645_subdev_internal_ops; + + ret = media_entity_init(&ov5645->sd.entity, 1, &ov5645->pad, 0); + if (ret < 0) { + dev_err(dev, "could not register media entity\n"); + goto free_ctrl; + } + + ov5645->sd.dev = &client->dev; + ret = v4l2_async_register_subdev(&ov5645->sd); + if (ret < 0) { + dev_err(dev, "could not register v4l2 device\n"); + goto free_entity; + } + + return 0; + +free_entity: + media_entity_cleanup(&ov5645->sd.entity); +free_ctrl: + v4l2_ctrl_handler_free(&ov5645->ctrls); + + return ret; +} + + +static int ov5645_remove(struct i2c_client *client) +{ + struct v4l2_subdev *sd = i2c_get_clientdata(client); + struct ov5645 *ov5645 = to_ov5645(sd); + + v4l2_async_unregister_subdev(&ov5645->sd); + media_entity_cleanup(&ov5645->sd.entity); + v4l2_ctrl_handler_free(&ov5645->ctrls); + + return 0; +} + + +static const struct i2c_device_id ov5645_id[] = { + { "ov5645", 0 }, + {} +}; +MODULE_DEVICE_TABLE(i2c, ov5645_id); + +#if IS_ENABLED(CONFIG_OF) +static const struct of_device_id ov5645_of_match[] = { + { .compatible = "ovti,ov5645" }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, ov5645_of_match); +#endif + +static struct i2c_driver ov5645_i2c_driver = { + .driver = { + .of_match_table = of_match_ptr(ov5645_of_match), + .name = "ov5645", + }, + .probe = ov5645_probe, + .remove = ov5645_remove, + .id_table = ov5645_id, +}; + +module_i2c_driver(ov5645_i2c_driver); + +MODULE_DESCRIPTION("Omnivision OV5645 Camera Driver"); +MODULE_AUTHOR("Todor Tomov "); +MODULE_LICENSE("GPL v2");