From patchwork Wed Aug 17 15:53:42 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bastian Hecht X-Patchwork-Id: 7623 Return-path: Envelope-to: mchehab@infradead.org Delivery-date: Wed, 17 Aug 2011 15:53:53 +0000 Received: from casper.infradead.org [85.118.1.10] by gaivota with IMAP (fetchmail-6.3.20) for (single-drop); Wed, 17 Aug 2011 15:14:26 -0700 (PDT) Received: from vger.kernel.org ([209.132.180.67]) by casper.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1QtiRE-0006sJ-He; Wed, 17 Aug 2011 15:53:53 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753946Ab1HQPxu (ORCPT + 1 other); Wed, 17 Aug 2011 11:53:50 -0400 Received: from mail-bw0-f46.google.com ([209.85.214.46]:59966 "EHLO mail-bw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753745Ab1HQPxt (ORCPT ); Wed, 17 Aug 2011 11:53:49 -0400 Received: by bke11 with SMTP id 11so802724bke.19 for ; Wed, 17 Aug 2011 08:53:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlemail.com; s=gamma; h=date:from:x-x-sender:to:cc:subject:message-id:user-agent :mime-version:content-type; bh=YvjdlLyMtJP3zwG7c8kgdrfhTUiT6C0+3EX4cEI77KE=; b=ukm5Yz8/XPYNDkx1pcTnBoEhGCnFtnbY0Q+TR6WEZN6h4rVggWmD2uCnSeT4kWdz0h WoJuLVI2MZ+8GiADekEKbdNFyO5hJIVGhI7799iCvqHnCmyLm6NREkXdLXq8YPaXAWFs SG0ytDDYGC+bas8kfGuLgJTuHB0J25NdR/pzc= Received: by 10.205.65.140 with SMTP id xm12mr513426bkb.78.1313596427851; Wed, 17 Aug 2011 08:53:47 -0700 (PDT) Received: from ipanema.local (i59F73ADC.versanet.de [89.247.58.220]) by mx.google.com with ESMTPS id h26sm441322bkt.19.2011.08.17.08.53.45 (version=TLSv1/SSLv3 cipher=OTHER); Wed, 17 Aug 2011 08:53:46 -0700 (PDT) Date: Wed, 17 Aug 2011 15:53:42 +0000 (UTC) From: Bastian Hecht X-X-Sender: basti@ipanema To: linux-media@vger.kernel.org cc: laurent.pinchart@ideasonboard.com, Guennadi Liakhovetski Subject: [PATCH] media: Add support for arbitrary resolution for the ov5642 camera driver Message-ID: User-Agent: Alpine 2.02 (DEB 1266 2009-07-14) MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org This patch adds the ability to get arbitrary resolutions with a width up to 2592 and a height up to 720 pixels instead of the standard 1280x720 only. Signed-off-by: Bastian Hecht --- -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html diff --git a/drivers/media/video/ov5642.c b/drivers/media/video/ov5642.c index 6410bda..1b40d90 100644 --- a/drivers/media/video/ov5642.c +++ b/drivers/media/video/ov5642.c @@ -14,8 +14,10 @@ * published by the Free Software Foundation. */ +#include #include #include +#include #include #include @@ -28,13 +30,25 @@ #define REG_CHIP_ID_HIGH 0x300a #define REG_CHIP_ID_LOW 0x300b +#define REG_RED_GAIN_HIGH 0x3400 +#define REG_RED_GAIN_LOW 0x3401 +#define REG_BLUE_GAIN_HIGH 0x3404 +#define REG_BLUE_GAIN_LOW 0x3405 +#define REG_AWB_MANUAL 0x3406 +#define REG_EXP_HIGH 0x3500 +#define REG_EXP_MIDDLE 0x3501 +#define REG_EXP_LOW 0x3502 +#define REG_EXP_GAIN_CTRL 0x3503 +#define REG_GAIN 0x350b +#define REG_EXTEND_FRAME_TIME_HIGH 0x350c +#define REG_EXTEND_FRAME_TIME_LOW 0x350d #define REG_WINDOW_START_X_HIGH 0x3800 #define REG_WINDOW_START_X_LOW 0x3801 #define REG_WINDOW_START_Y_HIGH 0x3802 #define REG_WINDOW_START_Y_LOW 0x3803 #define REG_WINDOW_WIDTH_HIGH 0x3804 #define REG_WINDOW_WIDTH_LOW 0x3805 -#define REG_WINDOW_HEIGHT_HIGH 0x3806 +#define REG_WINDOW_HEIGHT_HIGH 0x3806 #define REG_WINDOW_HEIGHT_LOW 0x3807 #define REG_OUT_WIDTH_HIGH 0x3808 #define REG_OUT_WIDTH_LOW 0x3809 @@ -44,19 +58,56 @@ #define REG_OUT_TOTAL_WIDTH_LOW 0x380d #define REG_OUT_TOTAL_HEIGHT_HIGH 0x380e #define REG_OUT_TOTAL_HEIGHT_LOW 0x380f +#define REG_FLIP_SUBSAMPLE 0x3818 +#define REG_OUTPUT_FORMAT 0x4300 +#define REG_ISP_CTRL_01 0x5001 +#define REG_DIGITAL_EFFECTS 0x5580 +#define REG_HUE_COS 0x5581 +#define REG_HUE_SIN 0x5582 +#define REG_BLUE_SATURATION 0x5583 +#define REG_RED_SATURATION 0x5584 +#define REG_CONTRAST 0x5588 +#define REG_BRIGHTNESS 0x5589 +#define REG_D_E_AUXILLARY 0x558a +#define REG_AVG_WINDOW_END_X_HIGH 0x5682 +#define REG_AVG_WINDOW_END_X_LOW 0x5683 +#define REG_AVG_WINDOW_END_Y_HIGH 0x5686 +#define REG_AVG_WINDOW_END_Y_LOW 0x5687 + +/* active pixel array size */ +#define OV5642_SENSOR_SIZE_X 2592 +#define OV5642_SENSOR_SIZE_Y 1944 + +/* current maximum working size */ +#define OV5642_MAX_WIDTH OV5642_SENSOR_SIZE_X +#define OV5642_MAX_HEIGHT 720 + +/* default sizes */ +#define OV5642_DEFAULT_WIDTH 1280 +#define OV5642_DEFAULT_HEIGHT OV5642_MAX_HEIGHT + +/* minimum extra blanking */ +#define BLANKING_EXTRA_WIDTH 500 +#define BLANKING_EXTRA_HEIGHT 20 /* - * define standard resolution. - * Works currently only for up to 720 lines - * eg. 320x240, 640x480, 800x600, 1280x720, 2048x720 + * the sensor's autoexposure is buggy when setting total_height low. + * It tries to expose longer than 1 frame period without taking care of it + * and this leads to weird output. So we set 1000 lines as minimum. */ -#define OV5642_WIDTH 1280 -#define OV5642_HEIGHT 720 -#define OV5642_TOTAL_WIDTH 3200 -#define OV5642_TOTAL_HEIGHT 2000 -#define OV5642_SENSOR_SIZE_X 2592 -#define OV5642_SENSOR_SIZE_Y 1944 +#define BLANKING_MIN_HEIGHT 1000 + +/* + * About OV5642 resolution, cropping and binning: + * This sensor supports it all, at least in the feature description. + * Unfortunately, no combination of appropriate registers settings could make + * the chip work the intended way. As it works with predefined register lists, + * some undocumented registers are presumably changed there to achieve their + * goals. + * This driver currently only works for resolutions up to 720 lines with a + * 1:1 scale. Hopefully these restrictions will be removed in the future. + */ struct regval_list { u16 reg_num; @@ -105,10 +156,8 @@ static struct regval_list ov5642_default_regs_init[] = { { 0x471d, 0x5 }, { 0x4708, 0x6 }, { 0x370c, 0xa0 }, - { 0x5687, 0x94 }, { 0x501f, 0x0 }, { 0x5000, 0x4f }, - { 0x5001, 0xcf }, { 0x4300, 0x30 }, { 0x4300, 0x30 }, { 0x460b, 0x35 }, @@ -121,11 +170,8 @@ static struct regval_list ov5642_default_regs_init[] = { { 0x4402, 0x90 }, { 0x460c, 0x22 }, { 0x3815, 0x44 }, - { 0x3503, 0x7 }, { 0x3501, 0x73 }, { 0x3502, 0x80 }, - { 0x350b, 0x0 }, - { 0x3818, 0xc8 }, { 0x3824, 0x11 }, { 0x3a00, 0x78 }, { 0x3a1a, 0x4 }, @@ -140,12 +186,6 @@ static struct regval_list ov5642_default_regs_init[] = { { 0x350d, 0xd0 }, { 0x3a0d, 0x8 }, { 0x3a0e, 0x6 }, - { 0x3500, 0x0 }, - { 0x3501, 0x0 }, - { 0x3502, 0x0 }, - { 0x350a, 0x0 }, - { 0x350b, 0x0 }, - { 0x3503, 0x0 }, { 0x3a0f, 0x3c }, { 0x3a10, 0x32 }, { 0x3a1b, 0x3c }, @@ -298,7 +338,7 @@ static struct regval_list ov5642_default_regs_init[] = { { 0x54b7, 0xdf }, { 0x5402, 0x3f }, { 0x5403, 0x0 }, - { 0x3406, 0x0 }, + { REG_AWB_MANUAL, 0x0 }, { 0x5180, 0xff }, { 0x5181, 0x52 }, { 0x5182, 0x11 }, @@ -515,7 +555,6 @@ static struct regval_list ov5642_default_regs_init[] = { { 0x5088, 0x0 }, { 0x5089, 0x0 }, { 0x302b, 0x0 }, - { 0x3503, 0x7 }, { 0x3011, 0x8 }, { 0x350c, 0x2 }, { 0x350d, 0xe4 }, @@ -526,7 +565,6 @@ static struct regval_list ov5642_default_regs_init[] = { static struct regval_list ov5642_default_regs_finalise[] = { { 0x3810, 0xc2 }, - { 0x3818, 0xc9 }, { 0x381c, 0x10 }, { 0x381d, 0xa0 }, { 0x381e, 0x5 }, @@ -541,23 +579,20 @@ static struct regval_list ov5642_default_regs_finalise[] = { { 0x3a0d, 0x2 }, { 0x3a0e, 0x1 }, { 0x401c, 0x4 }, - { 0x5682, 0x5 }, - { 0x5683, 0x0 }, - { 0x5686, 0x2 }, - { 0x5687, 0xcc }, - { 0x5001, 0x4f }, + { REG_ISP_CTRL_01, 0xff }, + { REG_DIGITAL_EFFECTS, 0x6 }, { 0x589b, 0x6 }, { 0x589a, 0xc5 }, - { 0x3503, 0x0 }, + { REG_EXP_GAIN_CTRL, 0x0 }, { 0x460c, 0x20 }, { 0x460b, 0x37 }, { 0x471c, 0xd0 }, { 0x471d, 0x5 }, { 0x3815, 0x1 }, - { 0x3818, 0xc1 }, + { REG_FLIP_SUBSAMPLE, 0xc1 }, { 0x501f, 0x0 }, { 0x5002, 0xe0 }, - { 0x4300, 0x32 }, /* UYVY */ + { REG_OUTPUT_FORMAT, 0x32 }, { 0x3002, 0x1c }, { 0x4800, 0x14 }, { 0x4801, 0xf }, @@ -578,9 +613,20 @@ struct ov5642_datafmt { enum v4l2_colorspace colorspace; }; +/* the output resolution and blanking information */ +struct ov5642_out_size { + int width; + int height; + int total_width; + int total_height; +}; + struct ov5642 { struct v4l2_subdev subdev; + const struct ov5642_datafmt *fmt; + struct v4l2_rect crop_rect; + struct ov5642_out_size out_size; }; static const struct ov5642_datafmt ov5642_colour_fmts[] = { @@ -593,8 +639,7 @@ static struct ov5642 *to_ov5642(const struct i2c_client *client) } /* Find a data format by a pixel code in an array */ -static const struct ov5642_datafmt - *ov5642_find_datafmt(enum v4l2_mbus_pixelcode code) +static const struct ov5642_datafmt *ov5642_find_datafmt(enum v4l2_mbus_pixelcode code) { int i; @@ -641,6 +686,26 @@ static int reg_write(struct i2c_client *client, u16 reg, u8 val) return 0; } + +/* + * convenience function to write 16 bit register values that are split up + * into two consecutive high and low parts + */ +static int reg_write16(struct i2c_client *client, u16 reg, u16 val16) +{ + int ret; + u8 val8; + + val8 = val16 >> 8; + ret = reg_write(client, reg, val8); + if (ret) + return ret; + val8 = val16 & 0x00ff; + ret = reg_write(client, reg + 1, val8); + + return ret; +} + #ifdef CONFIG_VIDEO_ADV_DEBUG static int ov5642_get_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) { @@ -684,68 +749,72 @@ static int ov5642_write_array(struct i2c_client *client, return 0; } -static int ov5642_set_resolution(struct i2c_client *client) +static int ov5642_set_resolution(struct v4l2_subdev *sd) { + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct ov5642 *priv = to_ov5642(client); + int width = priv->out_size.width; + int height = priv->out_size.height; + int total_width = priv->out_size.total_width; + int total_height = priv->out_size.total_height; + int start_x = (OV5642_SENSOR_SIZE_X - width) / 2; + int start_y = (OV5642_SENSOR_SIZE_Y - height) / 2; int ret; - u8 start_x_high = ((OV5642_SENSOR_SIZE_X - OV5642_WIDTH) / 2) >> 8; - u8 start_x_low = ((OV5642_SENSOR_SIZE_X - OV5642_WIDTH) / 2) & 0xff; - u8 start_y_high = ((OV5642_SENSOR_SIZE_Y - OV5642_HEIGHT) / 2) >> 8; - u8 start_y_low = ((OV5642_SENSOR_SIZE_Y - OV5642_HEIGHT) / 2) & 0xff; - - u8 width_high = OV5642_WIDTH >> 8; - u8 width_low = OV5642_WIDTH & 0xff; - u8 height_high = OV5642_HEIGHT >> 8; - u8 height_low = OV5642_HEIGHT & 0xff; - - u8 total_width_high = OV5642_TOTAL_WIDTH >> 8; - u8 total_width_low = OV5642_TOTAL_WIDTH & 0xff; - u8 total_height_high = OV5642_TOTAL_HEIGHT >> 8; - u8 total_height_low = OV5642_TOTAL_HEIGHT & 0xff; - - ret = reg_write(client, REG_WINDOW_START_X_HIGH, start_x_high); - if (!ret) - ret = reg_write(client, REG_WINDOW_START_X_LOW, start_x_low); - if (!ret) - ret = reg_write(client, REG_WINDOW_START_Y_HIGH, start_y_high); - if (!ret) - ret = reg_write(client, REG_WINDOW_START_Y_LOW, start_y_low); + /* This should set the starting point for cropping. Doesn't work so far. */ + ret = reg_write16(client, REG_WINDOW_START_X_HIGH, start_x); if (!ret) - ret = reg_write(client, REG_WINDOW_WIDTH_HIGH, width_high); - if (!ret) - ret = reg_write(client, REG_WINDOW_WIDTH_LOW , width_low); + ret = reg_write16(client, REG_WINDOW_START_Y_HIGH, start_y); + if (!ret) { + priv->crop_rect.left = start_x; + priv->crop_rect.top = start_y; + } + if (!ret) - ret = reg_write(client, REG_WINDOW_HEIGHT_HIGH, height_high); + ret = reg_write16(client, REG_WINDOW_WIDTH_HIGH, width); if (!ret) - ret = reg_write(client, REG_WINDOW_HEIGHT_LOW, height_low); + ret = reg_write16(client, REG_WINDOW_HEIGHT_HIGH, height); + if (ret) + return ret; + priv->crop_rect.width = width; + priv->crop_rect.height = height; + /* Set the output window size. Only 1:1 scale is supported so far. */ + ret = reg_write16(client, REG_OUT_WIDTH_HIGH, width); if (!ret) - ret = reg_write(client, REG_OUT_WIDTH_HIGH, width_high); - if (!ret) - ret = reg_write(client, REG_OUT_WIDTH_LOW , width_low); + ret = reg_write16(client, REG_OUT_HEIGHT_HIGH, height); + + /* Total width = output size + blanking */ if (!ret) - ret = reg_write(client, REG_OUT_HEIGHT_HIGH, height_high); + ret = reg_write16(client, REG_OUT_TOTAL_WIDTH_HIGH, total_width); if (!ret) - ret = reg_write(client, REG_OUT_HEIGHT_LOW, height_low); + ret = reg_write16(client, REG_OUT_TOTAL_HEIGHT_HIGH, total_height); + /* set the maximum integration time */ if (!ret) - ret = reg_write(client, REG_OUT_TOTAL_WIDTH_HIGH, total_width_high); - if (!ret) - ret = reg_write(client, REG_OUT_TOTAL_WIDTH_LOW, total_width_low); + ret = reg_write16(client, REG_EXTEND_FRAME_TIME_HIGH, + total_height); + + /* Sets the window for AWB calculations */ if (!ret) - ret = reg_write(client, REG_OUT_TOTAL_HEIGHT_HIGH, total_height_high); + ret = reg_write16(client, REG_AVG_WINDOW_END_X_HIGH, width); if (!ret) - ret = reg_write(client, REG_OUT_TOTAL_HEIGHT_LOW, total_height_low); + ret = reg_write16(client, REG_AVG_WINDOW_END_Y_HIGH, height); return ret; } -static int ov5642_try_fmt(struct v4l2_subdev *sd, - struct v4l2_mbus_framefmt *mf) +static int ov5642_try_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf) { - const struct ov5642_datafmt *fmt = ov5642_find_datafmt(mf->code); + const struct ov5642_datafmt *fmt = ov5642_find_datafmt(mf->code); - dev_dbg(sd->v4l2_dev->dev, "%s(%u) width: %u heigth: %u\n", + dev_dbg(sd->v4l2_dev->dev, "%s(%u) request width: %u heigth: %u\n", + __func__, mf->code, mf->width, mf->height); + + v4l_bound_align_image(&mf->width, 48, OV5642_MAX_WIDTH, 1, + &mf->height, 32, OV5642_MAX_HEIGHT, 1, 0); + + dev_dbg(sd->v4l2_dev->dev, "%s(%u) return width: %u heigth: %u\n", __func__, mf->code, mf->width, mf->height); if (!fmt) { @@ -753,20 +822,16 @@ static int ov5642_try_fmt(struct v4l2_subdev *sd, mf->colorspace = ov5642_colour_fmts[0].colorspace; } - mf->width = OV5642_WIDTH; - mf->height = OV5642_HEIGHT; mf->field = V4L2_FIELD_NONE; return 0; } -static int ov5642_s_fmt(struct v4l2_subdev *sd, - struct v4l2_mbus_framefmt *mf) +static int ov5642_s_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov5642 *priv = to_ov5642(client); - - dev_dbg(sd->v4l2_dev->dev, "%s(%u)\n", __func__, mf->code); + int ret; /* MIPI CSI could have changed the format, double-check */ if (!ov5642_find_datafmt(mf->code)) @@ -774,17 +839,27 @@ static int ov5642_s_fmt(struct v4l2_subdev *sd, ov5642_try_fmt(sd, mf); + priv->out_size.width = mf->width; + priv->out_size.height = mf->height; + priv->out_size.total_width = mf->width + BLANKING_EXTRA_WIDTH; + priv->out_size.total_height = max_t(int, mf->height + + BLANKING_EXTRA_HEIGHT, + BLANKING_MIN_HEIGHT); + priv->crop_rect.width = mf->width; + priv->crop_rect.height = mf->height; + priv->fmt = ov5642_find_datafmt(mf->code); - ov5642_write_array(client, ov5642_default_regs_init); - ov5642_set_resolution(client); - ov5642_write_array(client, ov5642_default_regs_finalise); + ret = ov5642_write_array(client, ov5642_default_regs_init); + if (!ret) + ret = ov5642_set_resolution(sd); + if (!ret) + ret = ov5642_write_array(client, ov5642_default_regs_finalise); - return 0; + return ret; } -static int ov5642_g_fmt(struct v4l2_subdev *sd, - struct v4l2_mbus_framefmt *mf) +static int ov5642_g_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov5642 *priv = to_ov5642(client); @@ -793,10 +868,12 @@ static int ov5642_g_fmt(struct v4l2_subdev *sd, mf->code = fmt->code; mf->colorspace = fmt->colorspace; - mf->width = OV5642_WIDTH; - mf->height = OV5642_HEIGHT; + mf->width = priv->out_size.width; + mf->height = priv->out_size.height; mf->field = V4L2_FIELD_NONE; + dev_dbg(sd->v4l2_dev->dev, "%s return width: %u heigth: %u\n", __func__, + mf->width, mf->height); return 0; } @@ -829,14 +906,17 @@ static int ov5642_g_chip_ident(struct v4l2_subdev *sd, static int ov5642_g_crop(struct v4l2_subdev *sd, struct v4l2_crop *a) { + struct i2c_client *client = v4l2_get_subdevdata(sd); + struct ov5642 *priv = to_ov5642(client); struct v4l2_rect *rect = &a->c; - a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - rect->top = 0; - rect->left = 0; - rect->width = OV5642_WIDTH; - rect->height = OV5642_HEIGHT; + rect->top = priv->crop_rect.top; + rect->left = priv->crop_rect.left; + rect->width = priv->crop_rect.width; + rect->height = priv->crop_rect.height; + dev_dbg(sd->v4l2_dev->dev, "%s crop width: %u heigth: %u\n", __func__, + rect->width, rect->height); return 0; } @@ -844,8 +924,8 @@ static int ov5642_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *a) { a->bounds.left = 0; a->bounds.top = 0; - a->bounds.width = OV5642_WIDTH; - a->bounds.height = OV5642_HEIGHT; + a->bounds.width = OV5642_MAX_WIDTH; + a->bounds.height = OV5642_MAX_HEIGHT; a->defrect = a->bounds; a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; a->pixelaspect.numerator = 1; @@ -858,9 +938,8 @@ static int ov5642_g_mbus_config(struct v4l2_subdev *sd, struct v4l2_mbus_config *cfg) { cfg->type = V4L2_MBUS_CSI2; - cfg->flags = V4L2_MBUS_CSI2_2_LANE | - V4L2_MBUS_CSI2_CHANNEL_0 | - V4L2_MBUS_CSI2_CONTINUOUS_CLOCK; + cfg->flags = V4L2_MBUS_CSI2_2_LANE | V4L2_MBUS_CSI2_CHANNEL_0 | + V4L2_MBUS_CSI2_CONTINUOUS_CLOCK; return 0; } @@ -941,8 +1020,15 @@ static int ov5642_probe(struct i2c_client *client, v4l2_i2c_subdev_init(&priv->subdev, client, &ov5642_subdev_ops); - icd->ops = NULL; - priv->fmt = &ov5642_colour_fmts[0]; + icd->ops = NULL; + priv->fmt = &ov5642_colour_fmts[0]; + + priv->crop_rect.width = OV5642_DEFAULT_WIDTH; + priv->crop_rect.height = OV5642_DEFAULT_HEIGHT; + priv->crop_rect.left = (OV5642_MAX_WIDTH - OV5642_DEFAULT_WIDTH) / 2; + priv->crop_rect.top = (OV5642_MAX_HEIGHT - OV5642_DEFAULT_HEIGHT) / 2; + priv->out_size.width = OV5642_DEFAULT_WIDTH; + priv->out_size.height = OV5642_DEFAULT_HEIGHT; ret = ov5642_video_probe(icd, client); if (ret < 0) @@ -951,6 +1037,7 @@ static int ov5642_probe(struct i2c_client *client, return 0; error: + icd->ops = NULL; kfree(priv); return ret; } @@ -961,6 +1048,7 @@ static int ov5642_remove(struct i2c_client *client) struct soc_camera_device *icd = client->dev.platform_data; struct soc_camera_link *icl = to_soc_camera_link(icd); + icd->ops = NULL; if (icl->free_bus) icl->free_bus(icl); kfree(priv);