2 * Samsung EXYNOS FIMC-LITE (camera host interface) driver
4 * Copyright (C) 2012 Samsung Electronics Co., Ltd.
5 * Sylwester Nawrocki <s.nawrocki@samsung.com>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
11 #define pr_fmt(fmt) "%s:%d " fmt, __func__, __LINE__
13 #include <linux/bug.h>
14 #include <linux/device.h>
15 #include <linux/errno.h>
16 #include <linux/interrupt.h>
17 #include <linux/kernel.h>
18 #include <linux/list.h>
19 #include <linux/module.h>
20 #include <linux/types.h>
21 #include <linux/platform_device.h>
22 #include <linux/pm_runtime.h>
23 #include <linux/slab.h>
24 #include <linux/videodev2.h>
26 #include <media/v4l2-device.h>
27 #include <media/v4l2-ioctl.h>
28 #include <media/v4l2-mem2mem.h>
29 #include <media/videobuf2-core.h>
30 #include <media/videobuf2-dma-contig.h>
32 #include "fimc-mdevice.h"
33 #include "fimc-core.h"
34 #include "fimc-lite-reg.h"
37 module_param(debug, int, 0644);
39 static const struct fimc_fmt fimc_lite_formats[] = {
41 .name = "YUV 4:2:2 packed, YCbYCr",
42 .fourcc = V4L2_PIX_FMT_YUYV,
44 .color = FIMC_FMT_YCBYCR422,
46 .mbus_code = V4L2_MBUS_FMT_YUYV8_2X8,
48 .name = "YUV 4:2:2 packed, CbYCrY",
49 .fourcc = V4L2_PIX_FMT_UYVY,
51 .color = FIMC_FMT_CBYCRY422,
53 .mbus_code = V4L2_MBUS_FMT_UYVY8_2X8,
55 .name = "YUV 4:2:2 packed, CrYCbY",
56 .fourcc = V4L2_PIX_FMT_VYUY,
58 .color = FIMC_FMT_CRYCBY422,
60 .mbus_code = V4L2_MBUS_FMT_VYUY8_2X8,
62 .name = "YUV 4:2:2 packed, YCrYCb",
63 .fourcc = V4L2_PIX_FMT_YVYU,
65 .color = FIMC_FMT_YCRYCB422,
67 .mbus_code = V4L2_MBUS_FMT_YVYU8_2X8,
69 .name = "RAW8 (GRBG)",
70 .fourcc = V4L2_PIX_FMT_SGRBG8,
72 .color = FIMC_FMT_RAW8,
74 .mbus_code = V4L2_MBUS_FMT_SGRBG8_1X8,
76 .name = "RAW10 (GRBG)",
77 .fourcc = V4L2_PIX_FMT_SGRBG10,
79 .color = FIMC_FMT_RAW10,
81 .mbus_code = V4L2_MBUS_FMT_SGRBG10_1X10,
83 .name = "RAW12 (GRBG)",
84 .fourcc = V4L2_PIX_FMT_SGRBG12,
86 .color = FIMC_FMT_RAW12,
88 .mbus_code = V4L2_MBUS_FMT_SGRBG12_1X12,
93 * fimc_lite_find_format - lookup fimc color format by fourcc or media bus code
94 * @pixelformat: fourcc to match, ignored if null
95 * @mbus_code: media bus code to match, ignored if null
96 * @index: index to the fimc_lite_formats array, ignored if negative
98 static const struct fimc_fmt *fimc_lite_find_format(const u32 *pixelformat,
99 const u32 *mbus_code, int index)
101 const struct fimc_fmt *fmt, *def_fmt = NULL;
105 if (index >= (int)ARRAY_SIZE(fimc_lite_formats))
108 for (i = 0; i < ARRAY_SIZE(fimc_lite_formats); ++i) {
109 fmt = &fimc_lite_formats[i];
110 if (pixelformat && fmt->fourcc == *pixelformat)
112 if (mbus_code && fmt->mbus_code == *mbus_code)
121 static int fimc_lite_hw_init(struct fimc_lite *fimc)
123 struct fimc_pipeline *pipeline = &fimc->pipeline;
124 struct fimc_sensor_info *sensor;
127 if (pipeline->subdevs[IDX_SENSOR] == NULL)
130 if (fimc->fmt == NULL)
133 sensor = v4l2_get_subdev_hostdata(pipeline->subdevs[IDX_SENSOR]);
134 spin_lock_irqsave(&fimc->slock, flags);
136 flite_hw_set_camera_bus(fimc, sensor->pdata);
137 flite_hw_set_source_format(fimc, &fimc->inp_frame);
138 flite_hw_set_window_offset(fimc, &fimc->inp_frame);
139 flite_hw_set_output_dma(fimc, &fimc->out_frame, true);
140 flite_hw_set_interrupt_mask(fimc);
141 flite_hw_set_test_pattern(fimc, fimc->test_pattern->val);
144 flite_hw_dump_regs(fimc, __func__);
146 spin_unlock_irqrestore(&fimc->slock, flags);
151 * Reinitialize the driver so it is ready to start the streaming again.
152 * Set fimc->state to indicate stream off and the hardware shut down state.
153 * If not suspending (@suspend is false), return any buffers to videobuf2.
154 * Otherwise put any owned buffers onto the pending buffers queue, so they
155 * can be re-spun when the device is being resumed. Also perform FIMC
156 * software reset and disable streaming on the whole pipeline if required.
158 static int fimc_lite_reinit(struct fimc_lite *fimc, bool suspend)
160 struct flite_buffer *buf;
164 spin_lock_irqsave(&fimc->slock, flags);
165 streaming = fimc->state & (1 << ST_SENSOR_STREAM);
167 fimc->state &= ~(1 << ST_FLITE_RUN | 1 << ST_FLITE_OFF |
168 1 << ST_FLITE_STREAM | 1 << ST_SENSOR_STREAM);
170 fimc->state |= (1 << ST_FLITE_SUSPENDED);
172 fimc->state &= ~(1 << ST_FLITE_PENDING |
173 1 << ST_FLITE_SUSPENDED);
175 /* Release unused buffers */
176 while (!suspend && !list_empty(&fimc->pending_buf_q)) {
177 buf = fimc_lite_pending_queue_pop(fimc);
178 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
180 /* If suspending put unused buffers onto pending queue */
181 while (!list_empty(&fimc->active_buf_q)) {
182 buf = fimc_lite_active_queue_pop(fimc);
184 fimc_lite_pending_queue_add(fimc, buf);
186 vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
189 spin_unlock_irqrestore(&fimc->slock, flags);
191 flite_hw_reset(fimc);
196 return fimc_pipeline_s_stream(&fimc->pipeline, 0);
199 static int fimc_lite_stop_capture(struct fimc_lite *fimc, bool suspend)
203 if (!fimc_lite_active(fimc))
206 spin_lock_irqsave(&fimc->slock, flags);
207 set_bit(ST_FLITE_OFF, &fimc->state);
208 flite_hw_capture_stop(fimc);
209 spin_unlock_irqrestore(&fimc->slock, flags);
211 wait_event_timeout(fimc->irq_queue,
212 !test_bit(ST_FLITE_OFF, &fimc->state),
213 (2*HZ/10)); /* 200 ms */
215 return fimc_lite_reinit(fimc, suspend);
218 /* Must be called with fimc.slock spinlock held. */
219 static void fimc_lite_config_update(struct fimc_lite *fimc)
221 flite_hw_set_window_offset(fimc, &fimc->inp_frame);
222 flite_hw_set_dma_window(fimc, &fimc->out_frame);
223 flite_hw_set_test_pattern(fimc, fimc->test_pattern->val);
224 clear_bit(ST_FLITE_CONFIG, &fimc->state);
227 static irqreturn_t flite_irq_handler(int irq, void *priv)
229 struct fimc_lite *fimc = priv;
230 struct flite_buffer *vbuf;
236 spin_lock_irqsave(&fimc->slock, flags);
238 intsrc = flite_hw_get_interrupt_source(fimc);
239 flite_hw_clear_pending_irq(fimc);
241 if (test_and_clear_bit(ST_FLITE_OFF, &fimc->state)) {
242 wake_up(&fimc->irq_queue);
246 if (intsrc & FLITE_REG_CISTATUS_IRQ_SRC_OVERFLOW) {
247 clear_bit(ST_FLITE_RUN, &fimc->state);
248 fimc->events.data_overflow++;
251 if (intsrc & FLITE_REG_CISTATUS_IRQ_SRC_LASTCAPEND) {
252 flite_hw_clear_last_capture_end(fimc);
253 clear_bit(ST_FLITE_STREAM, &fimc->state);
254 wake_up(&fimc->irq_queue);
257 if (fimc->out_path != FIMC_IO_DMA)
260 if ((intsrc & FLITE_REG_CISTATUS_IRQ_SRC_FRMSTART) &&
261 test_bit(ST_FLITE_RUN, &fimc->state) &&
262 !list_empty(&fimc->active_buf_q) &&
263 !list_empty(&fimc->pending_buf_q)) {
264 vbuf = fimc_lite_active_queue_pop(fimc);
266 tv = &vbuf->vb.v4l2_buf.timestamp;
267 tv->tv_sec = ts.tv_sec;
268 tv->tv_usec = ts.tv_nsec / NSEC_PER_USEC;
269 vbuf->vb.v4l2_buf.sequence = fimc->frame_count++;
270 vb2_buffer_done(&vbuf->vb, VB2_BUF_STATE_DONE);
272 vbuf = fimc_lite_pending_queue_pop(fimc);
273 flite_hw_set_output_addr(fimc, vbuf->paddr);
274 fimc_lite_active_queue_add(fimc, vbuf);
277 if (test_bit(ST_FLITE_CONFIG, &fimc->state))
278 fimc_lite_config_update(fimc);
280 if (list_empty(&fimc->pending_buf_q)) {
281 flite_hw_capture_stop(fimc);
282 clear_bit(ST_FLITE_STREAM, &fimc->state);
285 set_bit(ST_FLITE_RUN, &fimc->state);
286 spin_unlock_irqrestore(&fimc->slock, flags);
290 static int start_streaming(struct vb2_queue *q, unsigned int count)
292 struct fimc_lite *fimc = q->drv_priv;
295 fimc->frame_count = 0;
297 ret = fimc_lite_hw_init(fimc);
299 fimc_lite_reinit(fimc, false);
303 set_bit(ST_FLITE_PENDING, &fimc->state);
305 if (!list_empty(&fimc->active_buf_q) &&
306 !test_and_set_bit(ST_FLITE_STREAM, &fimc->state)) {
307 flite_hw_capture_start(fimc);
309 if (!test_and_set_bit(ST_SENSOR_STREAM, &fimc->state))
310 fimc_pipeline_s_stream(&fimc->pipeline, 1);
313 flite_hw_dump_regs(fimc, __func__);
318 static int stop_streaming(struct vb2_queue *q)
320 struct fimc_lite *fimc = q->drv_priv;
322 if (!fimc_lite_active(fimc))
325 return fimc_lite_stop_capture(fimc, false);
328 static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *pfmt,
329 unsigned int *num_buffers, unsigned int *num_planes,
330 unsigned int sizes[], void *allocators[])
332 const struct v4l2_pix_format_mplane *pixm = NULL;
333 struct fimc_lite *fimc = vq->drv_priv;
334 struct flite_frame *frame = &fimc->out_frame;
335 const struct fimc_fmt *fmt = fimc->fmt;
340 pixm = &pfmt->fmt.pix_mp;
341 fmt = fimc_lite_find_format(&pixm->pixelformat, NULL, -1);
342 wh = pixm->width * pixm->height;
344 wh = frame->f_width * frame->f_height;
350 *num_planes = fmt->memplanes;
352 for (i = 0; i < fmt->memplanes; i++) {
353 unsigned int size = (wh * fmt->depth[i]) / 8;
355 sizes[i] = max(size, pixm->plane_fmt[i].sizeimage);
358 allocators[i] = fimc->alloc_ctx;
364 static int buffer_prepare(struct vb2_buffer *vb)
366 struct vb2_queue *vq = vb->vb2_queue;
367 struct fimc_lite *fimc = vq->drv_priv;
370 if (fimc->fmt == NULL)
373 for (i = 0; i < fimc->fmt->memplanes; i++) {
374 unsigned long size = fimc->payload[i];
376 if (vb2_plane_size(vb, i) < size) {
378 "User buffer too small (%ld < %ld)\n",
379 vb2_plane_size(vb, i), size);
382 vb2_set_plane_payload(vb, i, size);
388 static void buffer_queue(struct vb2_buffer *vb)
390 struct flite_buffer *buf
391 = container_of(vb, struct flite_buffer, vb);
392 struct fimc_lite *fimc = vb2_get_drv_priv(vb->vb2_queue);
395 spin_lock_irqsave(&fimc->slock, flags);
396 buf->paddr = vb2_dma_contig_plane_dma_addr(vb, 0);
398 if (!test_bit(ST_FLITE_SUSPENDED, &fimc->state) &&
399 !test_bit(ST_FLITE_STREAM, &fimc->state) &&
400 list_empty(&fimc->active_buf_q)) {
401 flite_hw_set_output_addr(fimc, buf->paddr);
402 fimc_lite_active_queue_add(fimc, buf);
404 fimc_lite_pending_queue_add(fimc, buf);
407 if (vb2_is_streaming(&fimc->vb_queue) &&
408 !list_empty(&fimc->pending_buf_q) &&
409 !test_and_set_bit(ST_FLITE_STREAM, &fimc->state)) {
410 flite_hw_capture_start(fimc);
411 spin_unlock_irqrestore(&fimc->slock, flags);
413 if (!test_and_set_bit(ST_SENSOR_STREAM, &fimc->state))
414 fimc_pipeline_s_stream(&fimc->pipeline, 1);
417 spin_unlock_irqrestore(&fimc->slock, flags);
420 static void fimc_lock(struct vb2_queue *vq)
422 struct fimc_lite *fimc = vb2_get_drv_priv(vq);
423 mutex_lock(&fimc->lock);
426 static void fimc_unlock(struct vb2_queue *vq)
428 struct fimc_lite *fimc = vb2_get_drv_priv(vq);
429 mutex_unlock(&fimc->lock);
432 static const struct vb2_ops fimc_lite_qops = {
433 .queue_setup = queue_setup,
434 .buf_prepare = buffer_prepare,
435 .buf_queue = buffer_queue,
436 .wait_prepare = fimc_unlock,
437 .wait_finish = fimc_lock,
438 .start_streaming = start_streaming,
439 .stop_streaming = stop_streaming,
442 static void fimc_lite_clear_event_counters(struct fimc_lite *fimc)
446 spin_lock_irqsave(&fimc->slock, flags);
447 memset(&fimc->events, 0, sizeof(fimc->events));
448 spin_unlock_irqrestore(&fimc->slock, flags);
451 static int fimc_lite_open(struct file *file)
453 struct fimc_lite *fimc = video_drvdata(file);
456 if (mutex_lock_interruptible(&fimc->lock))
459 set_bit(ST_FLITE_IN_USE, &fimc->state);
460 ret = pm_runtime_get_sync(&fimc->pdev->dev);
464 ret = v4l2_fh_open(file);
468 if (++fimc->ref_count == 1 && fimc->out_path == FIMC_IO_DMA) {
469 ret = fimc_pipeline_initialize(&fimc->pipeline,
470 &fimc->vfd->entity, true);
472 pm_runtime_put_sync(&fimc->pdev->dev);
474 v4l2_fh_release(file);
475 clear_bit(ST_FLITE_IN_USE, &fimc->state);
478 fimc_lite_clear_event_counters(fimc);
481 mutex_unlock(&fimc->lock);
485 static int fimc_lite_close(struct file *file)
487 struct fimc_lite *fimc = video_drvdata(file);
490 if (mutex_lock_interruptible(&fimc->lock))
493 if (--fimc->ref_count == 0 && fimc->out_path == FIMC_IO_DMA) {
494 clear_bit(ST_FLITE_IN_USE, &fimc->state);
495 fimc_lite_stop_capture(fimc, false);
496 fimc_pipeline_shutdown(&fimc->pipeline);
497 clear_bit(ST_FLITE_SUSPENDED, &fimc->state);
500 pm_runtime_put(&fimc->pdev->dev);
502 if (fimc->ref_count == 0)
503 vb2_queue_release(&fimc->vb_queue);
505 ret = v4l2_fh_release(file);
507 mutex_unlock(&fimc->lock);
511 static unsigned int fimc_lite_poll(struct file *file,
512 struct poll_table_struct *wait)
514 struct fimc_lite *fimc = video_drvdata(file);
517 if (mutex_lock_interruptible(&fimc->lock))
520 ret = vb2_poll(&fimc->vb_queue, file, wait);
521 mutex_unlock(&fimc->lock);
526 static int fimc_lite_mmap(struct file *file, struct vm_area_struct *vma)
528 struct fimc_lite *fimc = video_drvdata(file);
531 if (mutex_lock_interruptible(&fimc->lock))
534 ret = vb2_mmap(&fimc->vb_queue, vma);
535 mutex_unlock(&fimc->lock);
540 static const struct v4l2_file_operations fimc_lite_fops = {
541 .owner = THIS_MODULE,
542 .open = fimc_lite_open,
543 .release = fimc_lite_close,
544 .poll = fimc_lite_poll,
545 .unlocked_ioctl = video_ioctl2,
546 .mmap = fimc_lite_mmap,
550 * Format and crop negotiation helpers
553 static const struct fimc_fmt *fimc_lite_try_format(struct fimc_lite *fimc,
554 u32 *width, u32 *height,
555 u32 *code, u32 *fourcc, int pad)
557 struct flite_variant *variant = fimc->variant;
558 const struct fimc_fmt *fmt;
560 fmt = fimc_lite_find_format(fourcc, code, 0);
565 *code = fmt->mbus_code;
567 *fourcc = fmt->fourcc;
569 if (pad == FLITE_SD_PAD_SINK) {
570 v4l_bound_align_image(width, 8, variant->max_width,
571 ffs(variant->out_width_align) - 1,
572 height, 0, variant->max_height, 0, 0);
574 v4l_bound_align_image(width, 8, fimc->inp_frame.rect.width,
575 ffs(variant->out_width_align) - 1,
576 height, 0, fimc->inp_frame.rect.height,
580 v4l2_dbg(1, debug, &fimc->subdev, "code: 0x%x, %dx%d\n",
581 code ? *code : 0, *width, *height);
586 static void fimc_lite_try_crop(struct fimc_lite *fimc, struct v4l2_rect *r)
588 struct flite_frame *frame = &fimc->inp_frame;
590 v4l_bound_align_image(&r->width, 0, frame->f_width, 0,
591 &r->height, 0, frame->f_height, 0, 0);
593 /* Adjust left/top if cropping rectangle got out of bounds */
594 r->left = clamp_t(u32, r->left, 0, frame->f_width - r->width);
595 r->left = round_down(r->left, fimc->variant->win_hor_offs_align);
596 r->top = clamp_t(u32, r->top, 0, frame->f_height - r->height);
598 v4l2_dbg(1, debug, &fimc->subdev, "(%d,%d)/%dx%d, sink fmt: %dx%d",
599 r->left, r->top, r->width, r->height,
600 frame->f_width, frame->f_height);
603 static void fimc_lite_try_compose(struct fimc_lite *fimc, struct v4l2_rect *r)
605 struct flite_frame *frame = &fimc->out_frame;
606 struct v4l2_rect *crop_rect = &fimc->inp_frame.rect;
608 /* Scaling is not supported so we enforce compose rectangle size
609 same as size of the sink crop rectangle. */
610 r->width = crop_rect->width;
611 r->height = crop_rect->height;
613 /* Adjust left/top if the composing rectangle got out of bounds */
614 r->left = clamp_t(u32, r->left, 0, frame->f_width - r->width);
615 r->left = round_down(r->left, fimc->variant->out_hor_offs_align);
616 r->top = clamp_t(u32, r->top, 0, fimc->out_frame.f_height - r->height);
618 v4l2_dbg(1, debug, &fimc->subdev, "(%d,%d)/%dx%d, source fmt: %dx%d",
619 r->left, r->top, r->width, r->height,
620 frame->f_width, frame->f_height);
624 * Video node ioctl operations
626 static int fimc_vidioc_querycap_capture(struct file *file, void *priv,
627 struct v4l2_capability *cap)
629 strlcpy(cap->driver, FIMC_LITE_DRV_NAME, sizeof(cap->driver));
630 cap->bus_info[0] = 0;
632 cap->capabilities = V4L2_CAP_STREAMING;
636 static int fimc_lite_enum_fmt_mplane(struct file *file, void *priv,
637 struct v4l2_fmtdesc *f)
639 const struct fimc_fmt *fmt;
641 if (f->index >= ARRAY_SIZE(fimc_lite_formats))
644 fmt = &fimc_lite_formats[f->index];
645 strlcpy(f->description, fmt->name, sizeof(f->description));
646 f->pixelformat = fmt->fourcc;
651 static int fimc_lite_g_fmt_mplane(struct file *file, void *fh,
652 struct v4l2_format *f)
654 struct fimc_lite *fimc = video_drvdata(file);
655 struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp;
656 struct v4l2_plane_pix_format *plane_fmt = &pixm->plane_fmt[0];
657 struct flite_frame *frame = &fimc->out_frame;
658 const struct fimc_fmt *fmt = fimc->fmt;
660 plane_fmt->bytesperline = (frame->f_width * fmt->depth[0]) / 8;
661 plane_fmt->sizeimage = plane_fmt->bytesperline * frame->f_height;
663 pixm->num_planes = fmt->memplanes;
664 pixm->pixelformat = fmt->fourcc;
665 pixm->width = frame->f_width;
666 pixm->height = frame->f_height;
667 pixm->field = V4L2_FIELD_NONE;
668 pixm->colorspace = V4L2_COLORSPACE_JPEG;
672 static int fimc_lite_try_fmt(struct fimc_lite *fimc,
673 struct v4l2_pix_format_mplane *pixm,
674 const struct fimc_fmt **ffmt)
676 struct flite_variant *variant = fimc->variant;
677 u32 bpl = pixm->plane_fmt[0].bytesperline;
678 const struct fimc_fmt *fmt;
680 fmt = fimc_lite_find_format(&pixm->pixelformat, NULL, 0);
681 if (WARN_ON(fmt == NULL))
685 v4l_bound_align_image(&pixm->width, 8, variant->max_width,
686 ffs(variant->out_width_align) - 1,
687 &pixm->height, 0, variant->max_height, 0, 0);
689 if ((bpl == 0 || ((bpl * 8) / fmt->depth[0]) < pixm->width))
690 pixm->plane_fmt[0].bytesperline = (pixm->width *
693 if (pixm->plane_fmt[0].sizeimage == 0)
694 pixm->plane_fmt[0].sizeimage = (pixm->width * pixm->height *
696 pixm->num_planes = fmt->memplanes;
697 pixm->pixelformat = fmt->fourcc;
698 pixm->colorspace = V4L2_COLORSPACE_JPEG;
699 pixm->field = V4L2_FIELD_NONE;
703 static int fimc_lite_try_fmt_mplane(struct file *file, void *fh,
704 struct v4l2_format *f)
706 struct fimc_lite *fimc = video_drvdata(file);
708 return fimc_lite_try_fmt(fimc, &f->fmt.pix_mp, NULL);
711 static int fimc_lite_s_fmt_mplane(struct file *file, void *priv,
712 struct v4l2_format *f)
714 struct v4l2_pix_format_mplane *pixm = &f->fmt.pix_mp;
715 struct fimc_lite *fimc = video_drvdata(file);
716 struct flite_frame *frame = &fimc->out_frame;
717 const struct fimc_fmt *fmt = NULL;
720 if (vb2_is_busy(&fimc->vb_queue))
723 ret = fimc_lite_try_fmt(fimc, &f->fmt.pix_mp, &fmt);
728 fimc->payload[0] = max((pixm->width * pixm->height * fmt->depth[0]) / 8,
729 pixm->plane_fmt[0].sizeimage);
730 frame->f_width = pixm->width;
731 frame->f_height = pixm->height;
736 static int fimc_pipeline_validate(struct fimc_lite *fimc)
738 struct v4l2_subdev *sd = &fimc->subdev;
739 struct v4l2_subdev_format sink_fmt, src_fmt;
740 struct media_pad *pad;
744 /* Retrieve format at the sink pad */
745 pad = &sd->entity.pads[0];
746 if (!(pad->flags & MEDIA_PAD_FL_SINK))
748 /* Don't call FIMC subdev operation to avoid nested locking */
749 if (sd == &fimc->subdev) {
750 struct flite_frame *ff = &fimc->out_frame;
751 sink_fmt.format.width = ff->f_width;
752 sink_fmt.format.height = ff->f_height;
753 sink_fmt.format.code = fimc->fmt->mbus_code;
755 sink_fmt.pad = pad->index;
756 sink_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
757 ret = v4l2_subdev_call(sd, pad, get_fmt, NULL,
759 if (ret < 0 && ret != -ENOIOCTLCMD)
762 /* Retrieve format at the source pad */
763 pad = media_entity_remote_source(pad);
765 media_entity_type(pad->entity) != MEDIA_ENT_T_V4L2_SUBDEV)
768 sd = media_entity_to_v4l2_subdev(pad->entity);
769 src_fmt.pad = pad->index;
770 src_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
771 ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &src_fmt);
772 if (ret < 0 && ret != -ENOIOCTLCMD)
775 if (src_fmt.format.width != sink_fmt.format.width ||
776 src_fmt.format.height != sink_fmt.format.height ||
777 src_fmt.format.code != sink_fmt.format.code)
783 static int fimc_lite_streamon(struct file *file, void *priv,
784 enum v4l2_buf_type type)
786 struct fimc_lite *fimc = video_drvdata(file);
787 struct v4l2_subdev *sensor = fimc->pipeline.subdevs[IDX_SENSOR];
788 struct fimc_pipeline *p = &fimc->pipeline;
791 if (fimc_lite_active(fimc))
794 ret = media_entity_pipeline_start(&sensor->entity, p->m_pipeline);
798 ret = fimc_pipeline_validate(fimc);
800 media_entity_pipeline_stop(&sensor->entity);
804 return vb2_streamon(&fimc->vb_queue, type);
807 static int fimc_lite_streamoff(struct file *file, void *priv,
808 enum v4l2_buf_type type)
810 struct fimc_lite *fimc = video_drvdata(file);
811 struct v4l2_subdev *sd = fimc->pipeline.subdevs[IDX_SENSOR];
814 ret = vb2_streamoff(&fimc->vb_queue, type);
816 media_entity_pipeline_stop(&sd->entity);
820 static int fimc_lite_reqbufs(struct file *file, void *priv,
821 struct v4l2_requestbuffers *reqbufs)
823 struct fimc_lite *fimc = video_drvdata(file);
826 reqbufs->count = max_t(u32, FLITE_REQ_BUFS_MIN, reqbufs->count);
827 ret = vb2_reqbufs(&fimc->vb_queue, reqbufs);
829 fimc->reqbufs_count = reqbufs->count;
834 static int fimc_lite_querybuf(struct file *file, void *priv,
835 struct v4l2_buffer *buf)
837 struct fimc_lite *fimc = video_drvdata(file);
839 return vb2_querybuf(&fimc->vb_queue, buf);
842 static int fimc_lite_qbuf(struct file *file, void *priv,
843 struct v4l2_buffer *buf)
845 struct fimc_lite *fimc = video_drvdata(file);
847 return vb2_qbuf(&fimc->vb_queue, buf);
850 static int fimc_lite_dqbuf(struct file *file, void *priv,
851 struct v4l2_buffer *buf)
853 struct fimc_lite *fimc = video_drvdata(file);
855 return vb2_dqbuf(&fimc->vb_queue, buf, file->f_flags & O_NONBLOCK);
858 static int fimc_lite_create_bufs(struct file *file, void *priv,
859 struct v4l2_create_buffers *create)
861 struct fimc_lite *fimc = video_drvdata(file);
863 return vb2_create_bufs(&fimc->vb_queue, create);
866 static int fimc_lite_prepare_buf(struct file *file, void *priv,
867 struct v4l2_buffer *b)
869 struct fimc_lite *fimc = video_drvdata(file);
871 return vb2_prepare_buf(&fimc->vb_queue, b);
874 /* Return 1 if rectangle a is enclosed in rectangle b, or 0 otherwise. */
875 static int enclosed_rectangle(struct v4l2_rect *a, struct v4l2_rect *b)
877 if (a->left < b->left || a->top < b->top)
879 if (a->left + a->width > b->left + b->width)
881 if (a->top + a->height > b->top + b->height)
887 static int fimc_lite_g_selection(struct file *file, void *fh,
888 struct v4l2_selection *sel)
890 struct fimc_lite *fimc = video_drvdata(file);
891 struct flite_frame *f = &fimc->out_frame;
893 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE)
896 switch (sel->target) {
897 case V4L2_SEL_TGT_COMPOSE_BOUNDS:
898 case V4L2_SEL_TGT_COMPOSE_DEFAULT:
901 sel->r.width = f->f_width;
902 sel->r.height = f->f_height;
905 case V4L2_SEL_TGT_COMPOSE_ACTIVE:
913 static int fimc_lite_s_selection(struct file *file, void *fh,
914 struct v4l2_selection *sel)
916 struct fimc_lite *fimc = video_drvdata(file);
917 struct flite_frame *f = &fimc->out_frame;
918 struct v4l2_rect rect = sel->r;
921 if (sel->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE ||
922 sel->target != V4L2_SEL_TGT_COMPOSE_ACTIVE)
925 fimc_lite_try_compose(fimc, &rect);
927 if ((sel->flags & V4L2_SEL_FLAG_LE) &&
928 !enclosed_rectangle(&rect, &sel->r))
931 if ((sel->flags & V4L2_SEL_FLAG_GE) &&
932 !enclosed_rectangle(&sel->r, &rect))
936 spin_lock_irqsave(&fimc->slock, flags);
938 set_bit(ST_FLITE_CONFIG, &fimc->state);
939 spin_unlock_irqrestore(&fimc->slock, flags);
944 static const struct v4l2_ioctl_ops fimc_lite_ioctl_ops = {
945 .vidioc_querycap = fimc_vidioc_querycap_capture,
946 .vidioc_enum_fmt_vid_cap_mplane = fimc_lite_enum_fmt_mplane,
947 .vidioc_try_fmt_vid_cap_mplane = fimc_lite_try_fmt_mplane,
948 .vidioc_s_fmt_vid_cap_mplane = fimc_lite_s_fmt_mplane,
949 .vidioc_g_fmt_vid_cap_mplane = fimc_lite_g_fmt_mplane,
950 .vidioc_g_selection = fimc_lite_g_selection,
951 .vidioc_s_selection = fimc_lite_s_selection,
952 .vidioc_reqbufs = fimc_lite_reqbufs,
953 .vidioc_querybuf = fimc_lite_querybuf,
954 .vidioc_prepare_buf = fimc_lite_prepare_buf,
955 .vidioc_create_bufs = fimc_lite_create_bufs,
956 .vidioc_qbuf = fimc_lite_qbuf,
957 .vidioc_dqbuf = fimc_lite_dqbuf,
958 .vidioc_streamon = fimc_lite_streamon,
959 .vidioc_streamoff = fimc_lite_streamoff,
962 /* Capture subdev media entity operations */
963 static int fimc_lite_link_setup(struct media_entity *entity,
964 const struct media_pad *local,
965 const struct media_pad *remote, u32 flags)
967 struct v4l2_subdev *sd = media_entity_to_v4l2_subdev(entity);
968 struct fimc_lite *fimc = v4l2_get_subdevdata(sd);
969 unsigned int remote_ent_type = media_entity_type(remote->entity);
971 if (WARN_ON(fimc == NULL))
974 v4l2_dbg(1, debug, sd, "%s: %s --> %s, flags: 0x%x. source_id: 0x%x",
975 __func__, local->entity->name, remote->entity->name,
976 flags, fimc->source_subdev_grp_id);
978 switch (local->index) {
979 case FIMC_SD_PAD_SINK:
980 if (remote_ent_type != MEDIA_ENT_T_V4L2_SUBDEV)
983 if (flags & MEDIA_LNK_FL_ENABLED) {
984 if (fimc->source_subdev_grp_id != 0)
986 fimc->source_subdev_grp_id = sd->grp_id;
990 fimc->source_subdev_grp_id = 0;
993 case FIMC_SD_PAD_SOURCE:
994 if (!(flags & MEDIA_LNK_FL_ENABLED)) {
995 fimc->out_path = FIMC_IO_NONE;
998 if (remote_ent_type == MEDIA_ENT_T_V4L2_SUBDEV)
999 fimc->out_path = FIMC_IO_ISP;
1001 fimc->out_path = FIMC_IO_DMA;
1005 v4l2_err(sd, "Invalid pad index\n");
1012 static const struct media_entity_operations fimc_lite_subdev_media_ops = {
1013 .link_setup = fimc_lite_link_setup,
1016 static int fimc_lite_subdev_enum_mbus_code(struct v4l2_subdev *sd,
1017 struct v4l2_subdev_fh *fh,
1018 struct v4l2_subdev_mbus_code_enum *code)
1020 const struct fimc_fmt *fmt;
1022 fmt = fimc_lite_find_format(NULL, NULL, code->index);
1025 code->code = fmt->mbus_code;
1029 static int fimc_lite_subdev_get_fmt(struct v4l2_subdev *sd,
1030 struct v4l2_subdev_fh *fh,
1031 struct v4l2_subdev_format *fmt)
1033 struct fimc_lite *fimc = v4l2_get_subdevdata(sd);
1034 struct v4l2_mbus_framefmt *mf = &fmt->format;
1035 struct flite_frame *f = &fimc->out_frame;
1037 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1038 mf = v4l2_subdev_get_try_format(fh, fmt->pad);
1042 mf->colorspace = V4L2_COLORSPACE_JPEG;
1044 mutex_lock(&fimc->lock);
1045 mf->code = fimc->fmt->mbus_code;
1047 if (fmt->pad == FLITE_SD_PAD_SINK) {
1048 /* full camera input frame size */
1049 mf->width = f->f_width;
1050 mf->height = f->f_height;
1053 mf->width = f->rect.width;
1054 mf->height = f->rect.height;
1056 mutex_unlock(&fimc->lock);
1060 static int fimc_lite_subdev_set_fmt(struct v4l2_subdev *sd,
1061 struct v4l2_subdev_fh *fh,
1062 struct v4l2_subdev_format *fmt)
1064 struct fimc_lite *fimc = v4l2_get_subdevdata(sd);
1065 struct v4l2_mbus_framefmt *mf = &fmt->format;
1066 struct flite_frame *sink = &fimc->inp_frame;
1067 const struct fimc_fmt *ffmt;
1069 v4l2_dbg(1, debug, sd, "pad%d: code: 0x%x, %dx%d",
1070 fmt->pad, mf->code, mf->width, mf->height);
1072 mf->colorspace = V4L2_COLORSPACE_JPEG;
1073 mutex_lock(&fimc->lock);
1075 if ((fimc->out_path == FIMC_IO_ISP && sd->entity.stream_count > 0) ||
1076 (fimc->out_path == FIMC_IO_DMA && vb2_is_busy(&fimc->vb_queue))) {
1077 mutex_unlock(&fimc->lock);
1081 ffmt = fimc_lite_try_format(fimc, &mf->width, &mf->height,
1082 &mf->code, NULL, fmt->pad);
1084 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1085 mf = v4l2_subdev_get_try_format(fh, fmt->pad);
1087 mutex_unlock(&fimc->lock);
1091 if (fmt->pad == FLITE_SD_PAD_SINK) {
1092 sink->f_width = mf->width;
1093 sink->f_height = mf->height;
1095 /* Set sink crop rectangle */
1096 sink->rect.width = mf->width;
1097 sink->rect.height = mf->height;
1098 sink->rect.left = 0;
1100 /* Reset source crop rectangle */
1101 fimc->out_frame.rect = sink->rect;
1103 /* Allow changing format only on sink pad */
1104 mf->code = fimc->fmt->mbus_code;
1105 mf->width = sink->rect.width;
1106 mf->height = sink->rect.height;
1109 mutex_unlock(&fimc->lock);
1113 static int fimc_lite_subdev_get_selection(struct v4l2_subdev *sd,
1114 struct v4l2_subdev_fh *fh,
1115 struct v4l2_subdev_selection *sel)
1117 struct fimc_lite *fimc = v4l2_get_subdevdata(sd);
1118 struct flite_frame *f = &fimc->inp_frame;
1120 if ((sel->target != V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL &&
1121 sel->target != V4L2_SUBDEV_SEL_TGT_CROP_BOUNDS) ||
1122 sel->pad != FLITE_SD_PAD_SINK)
1125 if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
1126 sel->r = *v4l2_subdev_get_try_crop(fh, sel->pad);
1130 mutex_lock(&fimc->lock);
1131 if (sel->target == V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL) {
1136 sel->r.width = f->f_width;
1137 sel->r.height = f->f_height;
1139 mutex_unlock(&fimc->lock);
1141 v4l2_dbg(1, debug, sd, "%s: (%d,%d) %dx%d, f_w: %d, f_h: %d",
1142 __func__, f->rect.left, f->rect.top, f->rect.width,
1143 f->rect.height, f->f_width, f->f_height);
1148 static int fimc_lite_subdev_set_selection(struct v4l2_subdev *sd,
1149 struct v4l2_subdev_fh *fh,
1150 struct v4l2_subdev_selection *sel)
1152 struct fimc_lite *fimc = v4l2_get_subdevdata(sd);
1153 struct flite_frame *f = &fimc->inp_frame;
1156 if (sel->target != V4L2_SUBDEV_SEL_TGT_CROP_ACTUAL ||
1157 sel->pad != FLITE_SD_PAD_SINK)
1160 mutex_lock(&fimc->lock);
1161 fimc_lite_try_crop(fimc, &sel->r);
1163 if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
1164 *v4l2_subdev_get_try_crop(fh, sel->pad) = sel->r;
1166 unsigned long flags;
1167 spin_lock_irqsave(&fimc->slock, flags);
1169 /* Same crop rectangle on the source pad */
1170 fimc->out_frame.rect = sel->r;
1171 set_bit(ST_FLITE_CONFIG, &fimc->state);
1172 spin_unlock_irqrestore(&fimc->slock, flags);
1174 mutex_unlock(&fimc->lock);
1176 v4l2_dbg(1, debug, sd, "%s: (%d,%d) %dx%d, f_w: %d, f_h: %d",
1177 __func__, f->rect.left, f->rect.top, f->rect.width,
1178 f->rect.height, f->f_width, f->f_height);
1183 static int fimc_lite_subdev_s_stream(struct v4l2_subdev *sd, int on)
1185 struct fimc_lite *fimc = v4l2_get_subdevdata(sd);
1187 if (fimc->out_path == FIMC_IO_DMA)
1188 return -ENOIOCTLCMD;
1195 static int fimc_lite_subdev_s_power(struct v4l2_subdev *sd, int on)
1197 struct fimc_lite *fimc = v4l2_get_subdevdata(sd);
1199 if (fimc->out_path == FIMC_IO_DMA)
1200 return -ENOIOCTLCMD;
1207 static int fimc_lite_log_status(struct v4l2_subdev *sd)
1209 struct fimc_lite *fimc = v4l2_get_subdevdata(sd);
1211 flite_hw_dump_regs(fimc, __func__);
1215 static int fimc_lite_subdev_registered(struct v4l2_subdev *sd)
1217 struct fimc_lite *fimc = v4l2_get_subdevdata(sd);
1218 struct vb2_queue *q = &fimc->vb_queue;
1219 struct video_device *vfd;
1222 fimc->fmt = &fimc_lite_formats[0];
1223 fimc->out_path = FIMC_IO_DMA;
1225 vfd = video_device_alloc();
1227 v4l2_err(sd->v4l2_dev, "Failed to allocate video device\n");
1231 snprintf(vfd->name, sizeof(vfd->name), "fimc-lite.%d.capture",
1234 vfd->fops = &fimc_lite_fops;
1235 vfd->ioctl_ops = &fimc_lite_ioctl_ops;
1236 vfd->v4l2_dev = sd->v4l2_dev;
1238 vfd->release = video_device_release;
1239 vfd->lock = &fimc->lock;
1241 fimc->ref_count = 0;
1242 fimc->reqbufs_count = 0;
1244 INIT_LIST_HEAD(&fimc->pending_buf_q);
1245 INIT_LIST_HEAD(&fimc->active_buf_q);
1247 memset(q, 0, sizeof(*q));
1248 q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
1249 q->io_modes = VB2_MMAP | VB2_USERPTR;
1250 q->ops = &fimc_lite_qops;
1251 q->mem_ops = &vb2_dma_contig_memops;
1252 q->buf_struct_size = sizeof(struct flite_buffer);
1257 fimc->vd_pad.flags = MEDIA_PAD_FL_SINK;
1258 ret = media_entity_init(&vfd->entity, 1, &fimc->vd_pad, 0);
1262 video_set_drvdata(vfd, fimc);
1264 ret = video_register_device(vfd, VFL_TYPE_GRABBER, -1);
1268 v4l2_info(sd->v4l2_dev, "Registered %s as /dev/%s\n",
1269 vfd->name, video_device_node_name(vfd));
1273 media_entity_cleanup(&vfd->entity);
1275 video_device_release(vfd);
1279 static void fimc_lite_subdev_unregistered(struct v4l2_subdev *sd)
1281 struct fimc_lite *fimc = v4l2_get_subdevdata(sd);
1287 video_unregister_device(fimc->vfd);
1288 media_entity_cleanup(&fimc->vfd->entity);
1293 static const struct v4l2_subdev_internal_ops fimc_lite_subdev_internal_ops = {
1294 .registered = fimc_lite_subdev_registered,
1295 .unregistered = fimc_lite_subdev_unregistered,
1298 static const struct v4l2_subdev_pad_ops fimc_lite_subdev_pad_ops = {
1299 .enum_mbus_code = fimc_lite_subdev_enum_mbus_code,
1300 .get_selection = fimc_lite_subdev_get_selection,
1301 .set_selection = fimc_lite_subdev_set_selection,
1302 .get_fmt = fimc_lite_subdev_get_fmt,
1303 .set_fmt = fimc_lite_subdev_set_fmt,
1306 static const struct v4l2_subdev_video_ops fimc_lite_subdev_video_ops = {
1307 .s_stream = fimc_lite_subdev_s_stream,
1310 static const struct v4l2_subdev_core_ops fimc_lite_core_ops = {
1311 .s_power = fimc_lite_subdev_s_power,
1312 .log_status = fimc_lite_log_status,
1315 static struct v4l2_subdev_ops fimc_lite_subdev_ops = {
1316 .core = &fimc_lite_core_ops,
1317 .video = &fimc_lite_subdev_video_ops,
1318 .pad = &fimc_lite_subdev_pad_ops,
1321 static int fimc_lite_s_ctrl(struct v4l2_ctrl *ctrl)
1323 struct fimc_lite *fimc = container_of(ctrl->handler, struct fimc_lite,
1325 set_bit(ST_FLITE_CONFIG, &fimc->state);
1329 static const struct v4l2_ctrl_ops fimc_lite_ctrl_ops = {
1330 .s_ctrl = fimc_lite_s_ctrl,
1333 static const struct v4l2_ctrl_config fimc_lite_ctrl = {
1334 .ops = &fimc_lite_ctrl_ops,
1335 .id = V4L2_CTRL_CLASS_USER | 0x1001,
1336 .type = V4L2_CTRL_TYPE_BOOLEAN,
1337 .name = "Test Pattern 640x480",
1340 static int fimc_lite_create_capture_subdev(struct fimc_lite *fimc)
1342 struct v4l2_ctrl_handler *handler = &fimc->ctrl_handler;
1343 struct v4l2_subdev *sd = &fimc->subdev;
1346 v4l2_subdev_init(sd, &fimc_lite_subdev_ops);
1347 sd->flags = V4L2_SUBDEV_FL_HAS_DEVNODE;
1348 snprintf(sd->name, sizeof(sd->name), "FIMC-LITE.%d", fimc->index);
1350 fimc->subdev_pads[FIMC_SD_PAD_SINK].flags = MEDIA_PAD_FL_SINK;
1351 fimc->subdev_pads[FIMC_SD_PAD_SOURCE].flags = MEDIA_PAD_FL_SOURCE;
1352 ret = media_entity_init(&sd->entity, FIMC_SD_PADS_NUM,
1353 fimc->subdev_pads, 0);
1357 v4l2_ctrl_handler_init(handler, 1);
1358 fimc->test_pattern = v4l2_ctrl_new_custom(handler, &fimc_lite_ctrl,
1360 if (handler->error) {
1361 media_entity_cleanup(&sd->entity);
1362 return handler->error;
1365 sd->ctrl_handler = handler;
1366 sd->internal_ops = &fimc_lite_subdev_internal_ops;
1367 sd->entity.ops = &fimc_lite_subdev_media_ops;
1368 v4l2_set_subdevdata(sd, fimc);
1373 static void fimc_lite_unregister_capture_subdev(struct fimc_lite *fimc)
1375 struct v4l2_subdev *sd = &fimc->subdev;
1377 v4l2_device_unregister_subdev(sd);
1378 media_entity_cleanup(&sd->entity);
1379 v4l2_ctrl_handler_free(&fimc->ctrl_handler);
1380 v4l2_set_subdevdata(sd, NULL);
1383 static void fimc_lite_clk_put(struct fimc_lite *fimc)
1385 if (IS_ERR_OR_NULL(fimc->clock))
1388 clk_unprepare(fimc->clock);
1389 clk_put(fimc->clock);
1393 static int fimc_lite_clk_get(struct fimc_lite *fimc)
1397 fimc->clock = clk_get(&fimc->pdev->dev, FLITE_CLK_NAME);
1398 if (IS_ERR(fimc->clock))
1399 return PTR_ERR(fimc->clock);
1401 ret = clk_prepare(fimc->clock);
1403 clk_put(fimc->clock);
1409 static int __devinit fimc_lite_probe(struct platform_device *pdev)
1411 struct flite_drvdata *drv_data = fimc_lite_get_drvdata(pdev);
1412 struct fimc_lite *fimc;
1413 struct resource *res;
1416 fimc = devm_kzalloc(&pdev->dev, sizeof(*fimc), GFP_KERNEL);
1420 fimc->index = pdev->id;
1421 fimc->variant = drv_data->variant[fimc->index];
1424 init_waitqueue_head(&fimc->irq_queue);
1425 spin_lock_init(&fimc->slock);
1426 mutex_init(&fimc->lock);
1428 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
1429 fimc->regs = devm_request_and_ioremap(&pdev->dev, res);
1430 if (fimc->regs == NULL) {
1431 dev_err(&pdev->dev, "Failed to obtain io memory\n");
1435 res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1437 dev_err(&pdev->dev, "Failed to get IRQ resource\n");
1441 ret = fimc_lite_clk_get(fimc);
1445 ret = devm_request_irq(&pdev->dev, res->start, flite_irq_handler,
1446 0, dev_name(&pdev->dev), fimc);
1448 dev_err(&pdev->dev, "Failed to install irq (%d)\n", ret);
1452 /* The video node will be created within the subdev's registered() op */
1453 ret = fimc_lite_create_capture_subdev(fimc);
1457 platform_set_drvdata(pdev, fimc);
1458 pm_runtime_enable(&pdev->dev);
1459 ret = pm_runtime_get_sync(&pdev->dev);
1463 fimc->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
1464 if (IS_ERR(fimc->alloc_ctx)) {
1465 ret = PTR_ERR(fimc->alloc_ctx);
1468 pm_runtime_put(&pdev->dev);
1470 dev_dbg(&pdev->dev, "FIMC-LITE.%d registered successfully\n",
1474 pm_runtime_put(&pdev->dev);
1476 fimc_lite_unregister_capture_subdev(fimc);
1478 fimc_lite_clk_put(fimc);
1482 static int fimc_lite_runtime_resume(struct device *dev)
1484 struct fimc_lite *fimc = dev_get_drvdata(dev);
1486 clk_enable(fimc->clock);
1490 static int fimc_lite_runtime_suspend(struct device *dev)
1492 struct fimc_lite *fimc = dev_get_drvdata(dev);
1494 clk_disable(fimc->clock);
1498 #ifdef CONFIG_PM_SLEEP
1499 static int fimc_lite_resume(struct device *dev)
1501 struct fimc_lite *fimc = dev_get_drvdata(dev);
1502 struct flite_buffer *buf;
1503 unsigned long flags;
1506 spin_lock_irqsave(&fimc->slock, flags);
1507 if (!test_and_clear_bit(ST_LPM, &fimc->state) ||
1508 !test_bit(ST_FLITE_IN_USE, &fimc->state)) {
1509 spin_unlock_irqrestore(&fimc->slock, flags);
1512 flite_hw_reset(fimc);
1513 spin_unlock_irqrestore(&fimc->slock, flags);
1515 if (!test_and_clear_bit(ST_FLITE_SUSPENDED, &fimc->state))
1518 INIT_LIST_HEAD(&fimc->active_buf_q);
1519 fimc_pipeline_initialize(&fimc->pipeline, &fimc->vfd->entity, false);
1520 fimc_lite_hw_init(fimc);
1521 clear_bit(ST_FLITE_SUSPENDED, &fimc->state);
1523 for (i = 0; i < fimc->reqbufs_count; i++) {
1524 if (list_empty(&fimc->pending_buf_q))
1526 buf = fimc_lite_pending_queue_pop(fimc);
1527 buffer_queue(&buf->vb);
1532 static int fimc_lite_suspend(struct device *dev)
1534 struct fimc_lite *fimc = dev_get_drvdata(dev);
1535 bool suspend = test_bit(ST_FLITE_IN_USE, &fimc->state);
1538 if (test_and_set_bit(ST_LPM, &fimc->state))
1541 ret = fimc_lite_stop_capture(fimc, suspend);
1542 if (ret < 0 || !fimc_lite_active(fimc))
1545 return fimc_pipeline_shutdown(&fimc->pipeline);
1547 #endif /* CONFIG_PM_SLEEP */
1549 static int __devexit fimc_lite_remove(struct platform_device *pdev)
1551 struct fimc_lite *fimc = platform_get_drvdata(pdev);
1552 struct device *dev = &pdev->dev;
1554 pm_runtime_disable(dev);
1555 pm_runtime_set_suspended(dev);
1556 fimc_lite_unregister_capture_subdev(fimc);
1557 vb2_dma_contig_cleanup_ctx(fimc->alloc_ctx);
1558 fimc_lite_clk_put(fimc);
1560 dev_info(dev, "Driver unloaded\n");
1564 static struct flite_variant fimc_lite0_variant_exynos4 = {
1567 .out_width_align = 8,
1568 .win_hor_offs_align = 2,
1569 .out_hor_offs_align = 8,
1572 /* EXYNOS4212, EXYNOS4412 */
1573 static struct flite_drvdata fimc_lite_drvdata_exynos4 = {
1575 [0] = &fimc_lite0_variant_exynos4,
1576 [1] = &fimc_lite0_variant_exynos4,
1580 static struct platform_device_id fimc_lite_driver_ids[] = {
1582 .name = "exynos-fimc-lite",
1583 .driver_data = (unsigned long)&fimc_lite_drvdata_exynos4,
1587 MODULE_DEVICE_TABLE(platform, fimc_lite_driver_ids);
1589 static const struct dev_pm_ops fimc_lite_pm_ops = {
1590 SET_SYSTEM_SLEEP_PM_OPS(fimc_lite_suspend, fimc_lite_resume)
1591 SET_RUNTIME_PM_OPS(fimc_lite_runtime_suspend, fimc_lite_runtime_resume,
1595 static struct platform_driver fimc_lite_driver = {
1596 .probe = fimc_lite_probe,
1597 .remove = __devexit_p(fimc_lite_remove),
1598 .id_table = fimc_lite_driver_ids,
1600 .name = FIMC_LITE_DRV_NAME,
1601 .owner = THIS_MODULE,
1602 .pm = &fimc_lite_pm_ops,
1605 module_platform_driver(fimc_lite_driver);
1606 MODULE_LICENSE("GPL");
1607 MODULE_ALIAS("platform:" FIMC_LITE_DRV_NAME);