2 * Driver for MT9V022 CMOS Image Sensor from Micron
4 * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
11 #include <linux/videodev2.h>
12 #include <linux/slab.h>
13 #include <linux/i2c.h>
14 #include <linux/delay.h>
15 #include <linux/log2.h>
17 #include <media/v4l2-subdev.h>
18 #include <media/v4l2-chip-ident.h>
19 #include <media/soc_camera.h>
21 /* mt9v022 i2c address 0x48, 0x4c, 0x58, 0x5c
22 * The platform has to define ctruct i2c_board_info objects and link to them
23 * from struct soc_camera_link */
25 static char *sensor_type
;
26 module_param(sensor_type
, charp
, S_IRUGO
);
27 MODULE_PARM_DESC(sensor_type
, "Sensor type: \"colour\" or \"monochrome\"");
29 /* mt9v022 selected register addresses */
30 #define MT9V022_CHIP_VERSION 0x00
31 #define MT9V022_COLUMN_START 0x01
32 #define MT9V022_ROW_START 0x02
33 #define MT9V022_WINDOW_HEIGHT 0x03
34 #define MT9V022_WINDOW_WIDTH 0x04
35 #define MT9V022_HORIZONTAL_BLANKING 0x05
36 #define MT9V022_VERTICAL_BLANKING 0x06
37 #define MT9V022_CHIP_CONTROL 0x07
38 #define MT9V022_SHUTTER_WIDTH1 0x08
39 #define MT9V022_SHUTTER_WIDTH2 0x09
40 #define MT9V022_SHUTTER_WIDTH_CTRL 0x0a
41 #define MT9V022_TOTAL_SHUTTER_WIDTH 0x0b
42 #define MT9V022_RESET 0x0c
43 #define MT9V022_READ_MODE 0x0d
44 #define MT9V022_MONITOR_MODE 0x0e
45 #define MT9V022_PIXEL_OPERATION_MODE 0x0f
46 #define MT9V022_LED_OUT_CONTROL 0x1b
47 #define MT9V022_ADC_MODE_CONTROL 0x1c
48 #define MT9V022_ANALOG_GAIN 0x34
49 #define MT9V022_BLACK_LEVEL_CALIB_CTRL 0x47
50 #define MT9V022_PIXCLK_FV_LV 0x74
51 #define MT9V022_DIGITAL_TEST_PATTERN 0x7f
52 #define MT9V022_AEC_AGC_ENABLE 0xAF
53 #define MT9V022_MAX_TOTAL_SHUTTER_WIDTH 0xBD
55 /* Progressive scan, master, defaults */
56 #define MT9V022_CHIP_CONTROL_DEFAULT 0x188
58 static const struct soc_camera_data_format mt9v022_colour_formats
[] = {
59 /* Order important: first natively supported,
60 * second supported with a GPIO extender */
62 .name
= "Bayer (sRGB) 10 bit",
64 .fourcc
= V4L2_PIX_FMT_SBGGR16
,
65 .colorspace
= V4L2_COLORSPACE_SRGB
,
67 .name
= "Bayer (sRGB) 8 bit",
69 .fourcc
= V4L2_PIX_FMT_SBGGR8
,
70 .colorspace
= V4L2_COLORSPACE_SRGB
,
74 static const struct soc_camera_data_format mt9v022_monochrome_formats
[] = {
75 /* Order important - see above */
77 .name
= "Monochrome 10 bit",
79 .fourcc
= V4L2_PIX_FMT_Y16
,
81 .name
= "Monochrome 8 bit",
83 .fourcc
= V4L2_PIX_FMT_GREY
,
88 struct v4l2_subdev subdev
;
89 int model
; /* V4L2_IDENT_MT9V022* codes from v4l2-chip-ident.h */
93 static struct mt9v022
*to_mt9v022(const struct i2c_client
*client
)
95 return container_of(i2c_get_clientdata(client
), struct mt9v022
, subdev
);
98 static int reg_read(struct i2c_client
*client
, const u8 reg
)
100 s32 data
= i2c_smbus_read_word_data(client
, reg
);
101 return data
< 0 ? data
: swab16(data
);
104 static int reg_write(struct i2c_client
*client
, const u8 reg
,
107 return i2c_smbus_write_word_data(client
, reg
, swab16(data
));
110 static int reg_set(struct i2c_client
*client
, const u8 reg
,
115 ret
= reg_read(client
, reg
);
118 return reg_write(client
, reg
, ret
| data
);
121 static int reg_clear(struct i2c_client
*client
, const u8 reg
,
126 ret
= reg_read(client
, reg
);
129 return reg_write(client
, reg
, ret
& ~data
);
132 static int mt9v022_init(struct soc_camera_device
*icd
)
134 struct i2c_client
*client
= to_i2c_client(to_soc_camera_control(icd
));
135 struct mt9v022
*mt9v022
= to_mt9v022(client
);
138 /* Almost the default mode: master, parallel, simultaneous, and an
139 * undocumented bit 0x200, which is present in table 7, but not in 8,
140 * plus snapshot mode to disable scan for now */
141 mt9v022
->chip_control
|= 0x10;
142 ret
= reg_write(client
, MT9V022_CHIP_CONTROL
, mt9v022
->chip_control
);
144 ret
= reg_write(client
, MT9V022_READ_MODE
, 0x300);
149 ret
= reg_set(client
, MT9V022_AEC_AGC_ENABLE
, 0x3);
151 ret
= reg_write(client
, MT9V022_MAX_TOTAL_SHUTTER_WIDTH
, 480);
154 ret
= reg_clear(client
, MT9V022_BLACK_LEVEL_CALIB_CTRL
, 1);
156 ret
= reg_write(client
, MT9V022_DIGITAL_TEST_PATTERN
, 0);
161 static int mt9v022_s_stream(struct v4l2_subdev
*sd
, int enable
)
163 struct i2c_client
*client
= sd
->priv
;
164 struct mt9v022
*mt9v022
= to_mt9v022(client
);
167 /* Switch to master "normal" mode */
168 mt9v022
->chip_control
&= ~0x10;
170 /* Switch to snapshot mode */
171 mt9v022
->chip_control
|= 0x10;
173 if (reg_write(client
, MT9V022_CHIP_CONTROL
, mt9v022
->chip_control
) < 0)
178 static int mt9v022_set_bus_param(struct soc_camera_device
*icd
,
181 struct i2c_client
*client
= to_i2c_client(to_soc_camera_control(icd
));
182 struct mt9v022
*mt9v022
= to_mt9v022(client
);
183 struct soc_camera_link
*icl
= to_soc_camera_link(icd
);
184 unsigned int width_flag
= flags
& SOCAM_DATAWIDTH_MASK
;
188 /* Only one width bit may be set */
189 if (!is_power_of_2(width_flag
))
192 if (icl
->set_bus_param
) {
193 ret
= icl
->set_bus_param(icl
, width_flag
);
198 * Without board specific bus width settings we only support the
199 * sensors native bus width
201 if (width_flag
!= SOCAM_DATAWIDTH_10
)
205 flags
= soc_camera_apply_sensor_flags(icl
, flags
);
207 if (flags
& SOCAM_PCLK_SAMPLE_RISING
)
210 if (!(flags
& SOCAM_HSYNC_ACTIVE_HIGH
))
213 if (!(flags
& SOCAM_VSYNC_ACTIVE_HIGH
))
216 ret
= reg_write(client
, MT9V022_PIXCLK_FV_LV
, pixclk
);
220 if (!(flags
& SOCAM_MASTER
))
221 mt9v022
->chip_control
&= ~0x8;
223 ret
= reg_write(client
, MT9V022_CHIP_CONTROL
, mt9v022
->chip_control
);
227 dev_dbg(&client
->dev
, "Calculated pixclk 0x%x, chip control 0x%x\n",
228 pixclk
, mt9v022
->chip_control
);
233 static unsigned long mt9v022_query_bus_param(struct soc_camera_device
*icd
)
235 struct soc_camera_link
*icl
= to_soc_camera_link(icd
);
236 unsigned int width_flag
;
238 if (icl
->query_bus_param
)
239 width_flag
= icl
->query_bus_param(icl
) &
240 SOCAM_DATAWIDTH_MASK
;
242 width_flag
= SOCAM_DATAWIDTH_10
;
244 return SOCAM_PCLK_SAMPLE_RISING
| SOCAM_PCLK_SAMPLE_FALLING
|
245 SOCAM_HSYNC_ACTIVE_HIGH
| SOCAM_HSYNC_ACTIVE_LOW
|
246 SOCAM_VSYNC_ACTIVE_HIGH
| SOCAM_VSYNC_ACTIVE_LOW
|
247 SOCAM_DATA_ACTIVE_HIGH
| SOCAM_MASTER
| SOCAM_SLAVE
|
251 static int mt9v022_s_crop(struct v4l2_subdev
*sd
, struct v4l2_crop
*a
)
253 struct v4l2_rect
*rect
= &a
->c
;
254 struct i2c_client
*client
= sd
->priv
;
255 struct soc_camera_device
*icd
= client
->dev
.platform_data
;
258 /* Like in example app. Contradicts the datasheet though */
259 ret
= reg_read(client
, MT9V022_AEC_AGC_ENABLE
);
261 if (ret
& 1) /* Autoexposure */
262 ret
= reg_write(client
, MT9V022_MAX_TOTAL_SHUTTER_WIDTH
,
263 rect
->height
+ icd
->y_skip_top
+ 43);
265 ret
= reg_write(client
, MT9V022_TOTAL_SHUTTER_WIDTH
,
266 rect
->height
+ icd
->y_skip_top
+ 43);
268 /* Setup frame format: defaults apart from width and height */
270 ret
= reg_write(client
, MT9V022_COLUMN_START
, rect
->left
);
272 ret
= reg_write(client
, MT9V022_ROW_START
, rect
->top
);
274 /* Default 94, Phytec driver says:
275 * "width + horizontal blank >= 660" */
276 ret
= reg_write(client
, MT9V022_HORIZONTAL_BLANKING
,
277 rect
->width
> 660 - 43 ? 43 :
280 ret
= reg_write(client
, MT9V022_VERTICAL_BLANKING
, 45);
282 ret
= reg_write(client
, MT9V022_WINDOW_WIDTH
, rect
->width
);
284 ret
= reg_write(client
, MT9V022_WINDOW_HEIGHT
,
285 rect
->height
+ icd
->y_skip_top
);
290 dev_dbg(&client
->dev
, "Frame %ux%u pixel\n", rect
->width
, rect
->height
);
295 static int mt9v022_s_fmt(struct v4l2_subdev
*sd
, struct v4l2_format
*f
)
297 struct i2c_client
*client
= sd
->priv
;
298 struct mt9v022
*mt9v022
= to_mt9v022(client
);
299 struct soc_camera_device
*icd
= client
->dev
.platform_data
;
300 struct v4l2_pix_format
*pix
= &f
->fmt
.pix
;
301 struct v4l2_crop a
= {
303 .left
= icd
->rect_current
.left
,
304 .top
= icd
->rect_current
.top
,
306 .height
= pix
->height
,
310 /* The caller provides a supported format, as verified per call to
311 * icd->try_fmt(), datawidth is from our supported format list */
312 switch (pix
->pixelformat
) {
313 case V4L2_PIX_FMT_GREY
:
314 case V4L2_PIX_FMT_Y16
:
315 if (mt9v022
->model
!= V4L2_IDENT_MT9V022IX7ATM
)
318 case V4L2_PIX_FMT_SBGGR8
:
319 case V4L2_PIX_FMT_SBGGR16
:
320 if (mt9v022
->model
!= V4L2_IDENT_MT9V022IX7ATC
)
324 /* No format change, only geometry */
330 /* No support for scaling on this camera, just crop. */
331 return mt9v022_s_crop(sd
, &a
);
334 static int mt9v022_try_fmt(struct v4l2_subdev
*sd
, struct v4l2_format
*f
)
336 struct i2c_client
*client
= sd
->priv
;
337 struct soc_camera_device
*icd
= client
->dev
.platform_data
;
338 struct v4l2_pix_format
*pix
= &f
->fmt
.pix
;
340 v4l_bound_align_image(&pix
->width
, 48, 752, 2 /* ? */,
341 &pix
->height
, 32 + icd
->y_skip_top
,
342 480 + icd
->y_skip_top
, 0, 0);
347 static int mt9v022_g_chip_ident(struct v4l2_subdev
*sd
,
348 struct v4l2_dbg_chip_ident
*id
)
350 struct i2c_client
*client
= sd
->priv
;
351 struct mt9v022
*mt9v022
= to_mt9v022(client
);
353 if (id
->match
.type
!= V4L2_CHIP_MATCH_I2C_ADDR
)
356 if (id
->match
.addr
!= client
->addr
)
359 id
->ident
= mt9v022
->model
;
365 #ifdef CONFIG_VIDEO_ADV_DEBUG
366 static int mt9v022_g_register(struct v4l2_subdev
*sd
,
367 struct v4l2_dbg_register
*reg
)
369 struct i2c_client
*client
= sd
->priv
;
371 if (reg
->match
.type
!= V4L2_CHIP_MATCH_I2C_ADDR
|| reg
->reg
> 0xff)
374 if (reg
->match
.addr
!= client
->addr
)
378 reg
->val
= reg_read(client
, reg
->reg
);
380 if (reg
->val
> 0xffff)
386 static int mt9v022_s_register(struct v4l2_subdev
*sd
,
387 struct v4l2_dbg_register
*reg
)
389 struct i2c_client
*client
= sd
->priv
;
391 if (reg
->match
.type
!= V4L2_CHIP_MATCH_I2C_ADDR
|| reg
->reg
> 0xff)
394 if (reg
->match
.addr
!= client
->addr
)
397 if (reg_write(client
, reg
->reg
, reg
->val
) < 0)
404 static const struct v4l2_queryctrl mt9v022_controls
[] = {
406 .id
= V4L2_CID_VFLIP
,
407 .type
= V4L2_CTRL_TYPE_BOOLEAN
,
408 .name
= "Flip Vertically",
414 .id
= V4L2_CID_HFLIP
,
415 .type
= V4L2_CTRL_TYPE_BOOLEAN
,
416 .name
= "Flip Horizontally",
423 .type
= V4L2_CTRL_TYPE_INTEGER
,
424 .name
= "Analog Gain",
429 .flags
= V4L2_CTRL_FLAG_SLIDER
,
431 .id
= V4L2_CID_EXPOSURE
,
432 .type
= V4L2_CTRL_TYPE_INTEGER
,
437 .default_value
= 255,
438 .flags
= V4L2_CTRL_FLAG_SLIDER
,
440 .id
= V4L2_CID_AUTOGAIN
,
441 .type
= V4L2_CTRL_TYPE_BOOLEAN
,
442 .name
= "Automatic Gain",
448 .id
= V4L2_CID_EXPOSURE_AUTO
,
449 .type
= V4L2_CTRL_TYPE_BOOLEAN
,
450 .name
= "Automatic Exposure",
458 static struct soc_camera_ops mt9v022_ops
= {
459 .init
= mt9v022_init
,
460 .set_bus_param
= mt9v022_set_bus_param
,
461 .query_bus_param
= mt9v022_query_bus_param
,
462 .controls
= mt9v022_controls
,
463 .num_controls
= ARRAY_SIZE(mt9v022_controls
),
466 static int mt9v022_g_ctrl(struct v4l2_subdev
*sd
, struct v4l2_control
*ctrl
)
468 struct i2c_client
*client
= sd
->priv
;
473 data
= reg_read(client
, MT9V022_READ_MODE
);
476 ctrl
->value
= !!(data
& 0x10);
479 data
= reg_read(client
, MT9V022_READ_MODE
);
482 ctrl
->value
= !!(data
& 0x20);
484 case V4L2_CID_EXPOSURE_AUTO
:
485 data
= reg_read(client
, MT9V022_AEC_AGC_ENABLE
);
488 ctrl
->value
= !!(data
& 0x1);
490 case V4L2_CID_AUTOGAIN
:
491 data
= reg_read(client
, MT9V022_AEC_AGC_ENABLE
);
494 ctrl
->value
= !!(data
& 0x2);
500 static int mt9v022_s_ctrl(struct v4l2_subdev
*sd
, struct v4l2_control
*ctrl
)
503 struct i2c_client
*client
= sd
->priv
;
504 struct soc_camera_device
*icd
= client
->dev
.platform_data
;
505 const struct v4l2_queryctrl
*qctrl
;
507 qctrl
= soc_camera_find_qctrl(&mt9v022_ops
, ctrl
->id
);
514 data
= reg_set(client
, MT9V022_READ_MODE
, 0x10);
516 data
= reg_clear(client
, MT9V022_READ_MODE
, 0x10);
522 data
= reg_set(client
, MT9V022_READ_MODE
, 0x20);
524 data
= reg_clear(client
, MT9V022_READ_MODE
, 0x20);
529 /* mt9v022 has minimum == default */
530 if (ctrl
->value
> qctrl
->maximum
|| ctrl
->value
< qctrl
->minimum
)
533 unsigned long range
= qctrl
->maximum
- qctrl
->minimum
;
534 /* Datasheet says 16 to 64. autogain only works properly
535 * after setting gain to maximum 14. Larger values
536 * produce "white fly" noise effect. On the whole,
537 * manually setting analog gain does no good. */
538 unsigned long gain
= ((ctrl
->value
- qctrl
->minimum
) *
539 10 + range
/ 2) / range
+ 4;
542 /* The user wants to set gain manually, hope, she
543 * knows, what she's doing... Switch AGC off. */
545 if (reg_clear(client
, MT9V022_AEC_AGC_ENABLE
, 0x2) < 0)
548 dev_info(&client
->dev
, "Setting gain from %d to %lu\n",
549 reg_read(client
, MT9V022_ANALOG_GAIN
), gain
);
550 if (reg_write(client
, MT9V022_ANALOG_GAIN
, gain
) < 0)
552 icd
->gain
= ctrl
->value
;
555 case V4L2_CID_EXPOSURE
:
556 /* mt9v022 has maximum == default */
557 if (ctrl
->value
> qctrl
->maximum
|| ctrl
->value
< qctrl
->minimum
)
560 unsigned long range
= qctrl
->maximum
- qctrl
->minimum
;
561 unsigned long shutter
= ((ctrl
->value
- qctrl
->minimum
) *
562 479 + range
/ 2) / range
+ 1;
563 /* The user wants to set shutter width manually, hope,
564 * she knows, what she's doing... Switch AEC off. */
566 if (reg_clear(client
, MT9V022_AEC_AGC_ENABLE
, 0x1) < 0)
569 dev_dbg(&client
->dev
, "Shutter width from %d to %lu\n",
570 reg_read(client
, MT9V022_TOTAL_SHUTTER_WIDTH
),
572 if (reg_write(client
, MT9V022_TOTAL_SHUTTER_WIDTH
,
575 icd
->exposure
= ctrl
->value
;
578 case V4L2_CID_AUTOGAIN
:
580 data
= reg_set(client
, MT9V022_AEC_AGC_ENABLE
, 0x2);
582 data
= reg_clear(client
, MT9V022_AEC_AGC_ENABLE
, 0x2);
586 case V4L2_CID_EXPOSURE_AUTO
:
588 data
= reg_set(client
, MT9V022_AEC_AGC_ENABLE
, 0x1);
590 data
= reg_clear(client
, MT9V022_AEC_AGC_ENABLE
, 0x1);
598 /* Interface active, can use i2c. If it fails, it can indeed mean, that
599 * this wasn't our capture interface, so, we wait for the right one */
600 static int mt9v022_video_probe(struct soc_camera_device
*icd
,
601 struct i2c_client
*client
)
603 struct mt9v022
*mt9v022
= to_mt9v022(client
);
604 struct soc_camera_link
*icl
= to_soc_camera_link(icd
);
609 if (!icd
->dev
.parent
||
610 to_soc_camera_host(icd
->dev
.parent
)->nr
!= icd
->iface
)
613 /* Read out the chip version register */
614 data
= reg_read(client
, MT9V022_CHIP_VERSION
);
616 /* must be 0x1311 or 0x1313 */
617 if (data
!= 0x1311 && data
!= 0x1313) {
619 dev_info(&client
->dev
, "No MT9V022 found, ID register 0x%x\n",
625 ret
= reg_write(client
, MT9V022_RESET
, 1);
628 /* 15 clock cycles */
630 if (reg_read(client
, MT9V022_RESET
)) {
631 dev_err(&client
->dev
, "Resetting MT9V022 failed!\n");
637 /* Set monochrome or colour sensor type */
638 if (sensor_type
&& (!strcmp("colour", sensor_type
) ||
639 !strcmp("color", sensor_type
))) {
640 ret
= reg_write(client
, MT9V022_PIXEL_OPERATION_MODE
, 4 | 0x11);
641 mt9v022
->model
= V4L2_IDENT_MT9V022IX7ATC
;
642 icd
->formats
= mt9v022_colour_formats
;
644 ret
= reg_write(client
, MT9V022_PIXEL_OPERATION_MODE
, 0x11);
645 mt9v022
->model
= V4L2_IDENT_MT9V022IX7ATM
;
646 icd
->formats
= mt9v022_monochrome_formats
;
652 icd
->num_formats
= 0;
655 * This is a 10bit sensor, so by default we only allow 10bit.
656 * The platform may support different bus widths due to
657 * different routing of the data lines.
659 if (icl
->query_bus_param
)
660 flags
= icl
->query_bus_param(icl
);
662 flags
= SOCAM_DATAWIDTH_10
;
664 if (flags
& SOCAM_DATAWIDTH_10
)
669 if (flags
& SOCAM_DATAWIDTH_8
)
672 dev_info(&client
->dev
, "Detected a MT9V022 chip ID %x, %s sensor\n",
673 data
, mt9v022
->model
== V4L2_IDENT_MT9V022IX7ATM
?
674 "monochrome" : "colour");
680 static void mt9v022_video_remove(struct soc_camera_device
*icd
)
682 struct i2c_client
*client
= to_i2c_client(to_soc_camera_control(icd
));
683 struct soc_camera_link
*icl
= to_soc_camera_link(icd
);
685 dev_dbg(&client
->dev
, "Video %x removed: %p, %p\n", client
->addr
,
686 icd
->dev
.parent
, icd
->vdev
);
691 static struct v4l2_subdev_core_ops mt9v022_subdev_core_ops
= {
692 .g_ctrl
= mt9v022_g_ctrl
,
693 .s_ctrl
= mt9v022_s_ctrl
,
694 .g_chip_ident
= mt9v022_g_chip_ident
,
695 #ifdef CONFIG_VIDEO_ADV_DEBUG
696 .g_register
= mt9v022_g_register
,
697 .s_register
= mt9v022_s_register
,
701 static struct v4l2_subdev_video_ops mt9v022_subdev_video_ops
= {
702 .s_stream
= mt9v022_s_stream
,
703 .s_fmt
= mt9v022_s_fmt
,
704 .try_fmt
= mt9v022_try_fmt
,
705 .s_crop
= mt9v022_s_crop
,
708 static struct v4l2_subdev_ops mt9v022_subdev_ops
= {
709 .core
= &mt9v022_subdev_core_ops
,
710 .video
= &mt9v022_subdev_video_ops
,
713 static int mt9v022_probe(struct i2c_client
*client
,
714 const struct i2c_device_id
*did
)
716 struct mt9v022
*mt9v022
;
717 struct soc_camera_device
*icd
= client
->dev
.platform_data
;
718 struct i2c_adapter
*adapter
= to_i2c_adapter(client
->dev
.parent
);
719 struct soc_camera_link
*icl
;
723 dev_err(&client
->dev
, "MT9V022: missing soc-camera data!\n");
727 icl
= to_soc_camera_link(icd
);
729 dev_err(&client
->dev
, "MT9V022 driver needs platform data\n");
733 if (!i2c_check_functionality(adapter
, I2C_FUNC_SMBUS_WORD_DATA
)) {
734 dev_warn(&adapter
->dev
,
735 "I2C-Adapter doesn't support I2C_FUNC_SMBUS_WORD\n");
739 mt9v022
= kzalloc(sizeof(struct mt9v022
), GFP_KERNEL
);
743 v4l2_i2c_subdev_init(&mt9v022
->subdev
, client
, &mt9v022_subdev_ops
);
745 mt9v022
->chip_control
= MT9V022_CHIP_CONTROL_DEFAULT
;
747 icd
->ops
= &mt9v022_ops
;
748 icd
->rect_max
.left
= 1;
749 icd
->rect_max
.top
= 4;
750 icd
->rect_max
.width
= 752;
751 icd
->rect_max
.height
= 480;
752 icd
->rect_current
.left
= 1;
753 icd
->rect_current
.top
= 4;
755 icd
->height_min
= 32;
758 ret
= mt9v022_video_probe(icd
, client
);
761 i2c_set_clientdata(client
, NULL
);
768 static int mt9v022_remove(struct i2c_client
*client
)
770 struct mt9v022
*mt9v022
= to_mt9v022(client
);
771 struct soc_camera_device
*icd
= client
->dev
.platform_data
;
774 mt9v022_video_remove(icd
);
775 i2c_set_clientdata(client
, NULL
);
776 client
->driver
= NULL
;
781 static const struct i2c_device_id mt9v022_id
[] = {
785 MODULE_DEVICE_TABLE(i2c
, mt9v022_id
);
787 static struct i2c_driver mt9v022_i2c_driver
= {
791 .probe
= mt9v022_probe
,
792 .remove
= mt9v022_remove
,
793 .id_table
= mt9v022_id
,
796 static int __init
mt9v022_mod_init(void)
798 return i2c_add_driver(&mt9v022_i2c_driver
);
801 static void __exit
mt9v022_mod_exit(void)
803 i2c_del_driver(&mt9v022_i2c_driver
);
806 module_init(mt9v022_mod_init
);
807 module_exit(mt9v022_mod_exit
);
809 MODULE_DESCRIPTION("Micron MT9V022 Camera driver");
810 MODULE_AUTHOR("Guennadi Liakhovetski <kernel@pengutronix.de>");
811 MODULE_LICENSE("GPL");