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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Samsung S5P G2D - 2D Graphics Accelerator Driver4 *5 * Copyright (c) 2011 Samsung Electronics Co., Ltd.6 * Kamil Debski, <k.debski@samsung.com>7 */8 9#include <linux/module.h>10#include <linux/fs.h>11#include <linux/timer.h>12#include <linux/sched.h>13#include <linux/slab.h>14#include <linux/clk.h>15#include <linux/interrupt.h>16#include <linux/of.h>17 18#include <linux/platform_device.h>19#include <media/v4l2-mem2mem.h>20#include <media/v4l2-device.h>21#include <media/v4l2-ioctl.h>22#include <media/videobuf2-v4l2.h>23#include <media/videobuf2-dma-contig.h>24 25#include "g2d.h"26#include "g2d-regs.h"27 28#define fh2ctx(__fh) container_of(__fh, struct g2d_ctx, fh)29 30static struct g2d_fmt formats[] = {31 {32 .fourcc = V4L2_PIX_FMT_RGB32,33 .depth = 32,34 .hw = COLOR_MODE(ORDER_XRGB, MODE_XRGB_8888),35 },36 {37 .fourcc = V4L2_PIX_FMT_RGB565X,38 .depth = 16,39 .hw = COLOR_MODE(ORDER_XRGB, MODE_RGB_565),40 },41 {42 .fourcc = V4L2_PIX_FMT_RGB555X,43 .depth = 16,44 .hw = COLOR_MODE(ORDER_XRGB, MODE_XRGB_1555),45 },46 {47 .fourcc = V4L2_PIX_FMT_RGB444,48 .depth = 16,49 .hw = COLOR_MODE(ORDER_XRGB, MODE_XRGB_4444),50 },51 {52 .fourcc = V4L2_PIX_FMT_RGB24,53 .depth = 24,54 .hw = COLOR_MODE(ORDER_XRGB, MODE_PACKED_RGB_888),55 },56};57#define NUM_FORMATS ARRAY_SIZE(formats)58 59static struct g2d_frame def_frame = {60 .width = DEFAULT_WIDTH,61 .height = DEFAULT_HEIGHT,62 .c_width = DEFAULT_WIDTH,63 .c_height = DEFAULT_HEIGHT,64 .o_width = 0,65 .o_height = 0,66 .fmt = &formats[0],67 .right = DEFAULT_WIDTH,68 .bottom = DEFAULT_HEIGHT,69};70 71static struct g2d_fmt *find_fmt(struct v4l2_format *f)72{73 unsigned int i;74 for (i = 0; i < NUM_FORMATS; i++) {75 if (formats[i].fourcc == f->fmt.pix.pixelformat)76 return &formats[i];77 }78 return NULL;79}80 81 82static struct g2d_frame *get_frame(struct g2d_ctx *ctx,83 enum v4l2_buf_type type)84{85 switch (type) {86 case V4L2_BUF_TYPE_VIDEO_OUTPUT:87 return &ctx->in;88 case V4L2_BUF_TYPE_VIDEO_CAPTURE:89 return &ctx->out;90 default:91 return ERR_PTR(-EINVAL);92 }93}94 95static int g2d_queue_setup(struct vb2_queue *vq,96 unsigned int *nbuffers, unsigned int *nplanes,97 unsigned int sizes[], struct device *alloc_devs[])98{99 struct g2d_ctx *ctx = vb2_get_drv_priv(vq);100 struct g2d_frame *f = get_frame(ctx, vq->type);101 102 if (IS_ERR(f))103 return PTR_ERR(f);104 105 sizes[0] = f->size;106 *nplanes = 1;107 108 if (*nbuffers == 0)109 *nbuffers = 1;110 111 return 0;112}113 114static int g2d_buf_prepare(struct vb2_buffer *vb)115{116 struct g2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);117 struct g2d_frame *f = get_frame(ctx, vb->vb2_queue->type);118 119 if (IS_ERR(f))120 return PTR_ERR(f);121 vb2_set_plane_payload(vb, 0, f->size);122 return 0;123}124 125static void g2d_buf_queue(struct vb2_buffer *vb)126{127 struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);128 struct g2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);129 v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);130}131 132static const struct vb2_ops g2d_qops = {133 .queue_setup = g2d_queue_setup,134 .buf_prepare = g2d_buf_prepare,135 .buf_queue = g2d_buf_queue,136 .wait_prepare = vb2_ops_wait_prepare,137 .wait_finish = vb2_ops_wait_finish,138};139 140static int queue_init(void *priv, struct vb2_queue *src_vq,141 struct vb2_queue *dst_vq)142{143 struct g2d_ctx *ctx = priv;144 int ret;145 146 src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;147 src_vq->io_modes = VB2_MMAP | VB2_USERPTR;148 src_vq->drv_priv = ctx;149 src_vq->ops = &g2d_qops;150 src_vq->mem_ops = &vb2_dma_contig_memops;151 src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);152 src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;153 src_vq->lock = &ctx->dev->mutex;154 src_vq->dev = ctx->dev->v4l2_dev.dev;155 156 ret = vb2_queue_init(src_vq);157 if (ret)158 return ret;159 160 dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;161 dst_vq->io_modes = VB2_MMAP | VB2_USERPTR;162 dst_vq->drv_priv = ctx;163 dst_vq->ops = &g2d_qops;164 dst_vq->mem_ops = &vb2_dma_contig_memops;165 dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);166 dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;167 dst_vq->lock = &ctx->dev->mutex;168 dst_vq->dev = ctx->dev->v4l2_dev.dev;169 170 return vb2_queue_init(dst_vq);171}172 173static int g2d_s_ctrl(struct v4l2_ctrl *ctrl)174{175 struct g2d_ctx *ctx = container_of(ctrl->handler, struct g2d_ctx,176 ctrl_handler);177 unsigned long flags;178 179 spin_lock_irqsave(&ctx->dev->ctrl_lock, flags);180 switch (ctrl->id) {181 case V4L2_CID_COLORFX:182 if (ctrl->val == V4L2_COLORFX_NEGATIVE)183 ctx->rop = ROP4_INVERT;184 else185 ctx->rop = ROP4_COPY;186 break;187 188 case V4L2_CID_HFLIP:189 ctx->flip = ctx->ctrl_hflip->val | (ctx->ctrl_vflip->val << 1);190 break;191 192 }193 spin_unlock_irqrestore(&ctx->dev->ctrl_lock, flags);194 return 0;195}196 197static const struct v4l2_ctrl_ops g2d_ctrl_ops = {198 .s_ctrl = g2d_s_ctrl,199};200 201static int g2d_setup_ctrls(struct g2d_ctx *ctx)202{203 struct g2d_dev *dev = ctx->dev;204 205 v4l2_ctrl_handler_init(&ctx->ctrl_handler, 3);206 207 ctx->ctrl_hflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, &g2d_ctrl_ops,208 V4L2_CID_HFLIP, 0, 1, 1, 0);209 210 ctx->ctrl_vflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, &g2d_ctrl_ops,211 V4L2_CID_VFLIP, 0, 1, 1, 0);212 213 v4l2_ctrl_new_std_menu(214 &ctx->ctrl_handler,215 &g2d_ctrl_ops,216 V4L2_CID_COLORFX,217 V4L2_COLORFX_NEGATIVE,218 ~((1 << V4L2_COLORFX_NONE) | (1 << V4L2_COLORFX_NEGATIVE)),219 V4L2_COLORFX_NONE);220 221 if (ctx->ctrl_handler.error) {222 int err = ctx->ctrl_handler.error;223 v4l2_err(&dev->v4l2_dev, "g2d_setup_ctrls failed\n");224 v4l2_ctrl_handler_free(&ctx->ctrl_handler);225 return err;226 }227 228 v4l2_ctrl_cluster(2, &ctx->ctrl_hflip);229 230 return 0;231}232 233static int g2d_open(struct file *file)234{235 struct g2d_dev *dev = video_drvdata(file);236 struct g2d_ctx *ctx = NULL;237 int ret = 0;238 239 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);240 if (!ctx)241 return -ENOMEM;242 ctx->dev = dev;243 /* Set default formats */244 ctx->in = def_frame;245 ctx->out = def_frame;246 247 if (mutex_lock_interruptible(&dev->mutex)) {248 kfree(ctx);249 return -ERESTARTSYS;250 }251 ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init);252 if (IS_ERR(ctx->fh.m2m_ctx)) {253 ret = PTR_ERR(ctx->fh.m2m_ctx);254 mutex_unlock(&dev->mutex);255 kfree(ctx);256 return ret;257 }258 v4l2_fh_init(&ctx->fh, video_devdata(file));259 file->private_data = &ctx->fh;260 v4l2_fh_add(&ctx->fh);261 262 g2d_setup_ctrls(ctx);263 264 /* Write the default values to the ctx struct */265 v4l2_ctrl_handler_setup(&ctx->ctrl_handler);266 267 ctx->fh.ctrl_handler = &ctx->ctrl_handler;268 mutex_unlock(&dev->mutex);269 270 v4l2_info(&dev->v4l2_dev, "instance opened\n");271 return 0;272}273 274static int g2d_release(struct file *file)275{276 struct g2d_dev *dev = video_drvdata(file);277 struct g2d_ctx *ctx = fh2ctx(file->private_data);278 279 mutex_lock(&dev->mutex);280 v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);281 mutex_unlock(&dev->mutex);282 v4l2_ctrl_handler_free(&ctx->ctrl_handler);283 v4l2_fh_del(&ctx->fh);284 v4l2_fh_exit(&ctx->fh);285 kfree(ctx);286 v4l2_info(&dev->v4l2_dev, "instance closed\n");287 return 0;288}289 290 291static int vidioc_querycap(struct file *file, void *priv,292 struct v4l2_capability *cap)293{294 strscpy(cap->driver, G2D_NAME, sizeof(cap->driver));295 strscpy(cap->card, G2D_NAME, sizeof(cap->card));296 cap->bus_info[0] = 0;297 return 0;298}299 300static int vidioc_enum_fmt(struct file *file, void *prv, struct v4l2_fmtdesc *f)301{302 if (f->index >= NUM_FORMATS)303 return -EINVAL;304 f->pixelformat = formats[f->index].fourcc;305 return 0;306}307 308static int vidioc_g_fmt(struct file *file, void *prv, struct v4l2_format *f)309{310 struct g2d_ctx *ctx = prv;311 struct vb2_queue *vq;312 struct g2d_frame *frm;313 314 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);315 if (!vq)316 return -EINVAL;317 frm = get_frame(ctx, f->type);318 if (IS_ERR(frm))319 return PTR_ERR(frm);320 321 f->fmt.pix.width = frm->width;322 f->fmt.pix.height = frm->height;323 f->fmt.pix.field = V4L2_FIELD_NONE;324 f->fmt.pix.pixelformat = frm->fmt->fourcc;325 f->fmt.pix.bytesperline = (frm->width * frm->fmt->depth) >> 3;326 f->fmt.pix.sizeimage = frm->size;327 return 0;328}329 330static int vidioc_try_fmt(struct file *file, void *prv, struct v4l2_format *f)331{332 struct g2d_fmt *fmt;333 enum v4l2_field *field;334 335 fmt = find_fmt(f);336 if (!fmt)337 return -EINVAL;338 339 field = &f->fmt.pix.field;340 if (*field == V4L2_FIELD_ANY)341 *field = V4L2_FIELD_NONE;342 else if (*field != V4L2_FIELD_NONE)343 return -EINVAL;344 345 if (f->fmt.pix.width > MAX_WIDTH)346 f->fmt.pix.width = MAX_WIDTH;347 if (f->fmt.pix.height > MAX_HEIGHT)348 f->fmt.pix.height = MAX_HEIGHT;349 350 if (f->fmt.pix.width < 1)351 f->fmt.pix.width = 1;352 if (f->fmt.pix.height < 1)353 f->fmt.pix.height = 1;354 355 f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;356 f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;357 return 0;358}359 360static int vidioc_s_fmt(struct file *file, void *prv, struct v4l2_format *f)361{362 struct g2d_ctx *ctx = prv;363 struct g2d_dev *dev = ctx->dev;364 struct vb2_queue *vq;365 struct g2d_frame *frm;366 struct g2d_fmt *fmt;367 int ret = 0;368 369 /* Adjust all values accordingly to the hardware capabilities370 * and chosen format. */371 ret = vidioc_try_fmt(file, prv, f);372 if (ret)373 return ret;374 vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);375 if (vb2_is_busy(vq)) {376 v4l2_err(&dev->v4l2_dev, "queue (%d) bust\n", f->type);377 return -EBUSY;378 }379 frm = get_frame(ctx, f->type);380 if (IS_ERR(frm))381 return PTR_ERR(frm);382 fmt = find_fmt(f);383 if (!fmt)384 return -EINVAL;385 frm->width = f->fmt.pix.width;386 frm->height = f->fmt.pix.height;387 frm->size = f->fmt.pix.sizeimage;388 /* Reset crop settings */389 frm->o_width = 0;390 frm->o_height = 0;391 frm->c_width = frm->width;392 frm->c_height = frm->height;393 frm->right = frm->width;394 frm->bottom = frm->height;395 frm->fmt = fmt;396 frm->stride = f->fmt.pix.bytesperline;397 return 0;398}399 400static int vidioc_g_selection(struct file *file, void *prv,401 struct v4l2_selection *s)402{403 struct g2d_ctx *ctx = prv;404 struct g2d_frame *f;405 406 f = get_frame(ctx, s->type);407 if (IS_ERR(f))408 return PTR_ERR(f);409 410 switch (s->target) {411 case V4L2_SEL_TGT_CROP:412 case V4L2_SEL_TGT_CROP_DEFAULT:413 case V4L2_SEL_TGT_CROP_BOUNDS:414 if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)415 return -EINVAL;416 break;417 case V4L2_SEL_TGT_COMPOSE:418 case V4L2_SEL_TGT_COMPOSE_DEFAULT:419 case V4L2_SEL_TGT_COMPOSE_BOUNDS:420 if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)421 return -EINVAL;422 break;423 default:424 return -EINVAL;425 }426 427 switch (s->target) {428 case V4L2_SEL_TGT_CROP:429 case V4L2_SEL_TGT_COMPOSE:430 s->r.left = f->o_height;431 s->r.top = f->o_width;432 s->r.width = f->c_width;433 s->r.height = f->c_height;434 break;435 case V4L2_SEL_TGT_CROP_DEFAULT:436 case V4L2_SEL_TGT_CROP_BOUNDS:437 case V4L2_SEL_TGT_COMPOSE_DEFAULT:438 case V4L2_SEL_TGT_COMPOSE_BOUNDS:439 s->r.left = 0;440 s->r.top = 0;441 s->r.width = f->width;442 s->r.height = f->height;443 break;444 default:445 return -EINVAL;446 }447 return 0;448}449 450static int vidioc_try_selection(struct file *file, void *prv,451 const struct v4l2_selection *s)452{453 struct g2d_ctx *ctx = prv;454 struct g2d_dev *dev = ctx->dev;455 struct g2d_frame *f;456 457 f = get_frame(ctx, s->type);458 if (IS_ERR(f))459 return PTR_ERR(f);460 461 if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {462 if (s->target != V4L2_SEL_TGT_COMPOSE)463 return -EINVAL;464 } else if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {465 if (s->target != V4L2_SEL_TGT_CROP)466 return -EINVAL;467 }468 469 if (s->r.top < 0 || s->r.left < 0) {470 v4l2_err(&dev->v4l2_dev,471 "doesn't support negative values for top & left\n");472 return -EINVAL;473 }474 475 return 0;476}477 478static int vidioc_s_selection(struct file *file, void *prv,479 struct v4l2_selection *s)480{481 struct g2d_ctx *ctx = prv;482 struct g2d_frame *f;483 int ret;484 485 ret = vidioc_try_selection(file, prv, s);486 if (ret)487 return ret;488 f = get_frame(ctx, s->type);489 if (IS_ERR(f))490 return PTR_ERR(f);491 492 f->c_width = s->r.width;493 f->c_height = s->r.height;494 f->o_width = s->r.left;495 f->o_height = s->r.top;496 f->bottom = f->o_height + f->c_height;497 f->right = f->o_width + f->c_width;498 return 0;499}500 501static void device_run(void *prv)502{503 struct g2d_ctx *ctx = prv;504 struct g2d_dev *dev = ctx->dev;505 struct vb2_v4l2_buffer *src, *dst;506 unsigned long flags;507 u32 cmd = 0;508 509 dev->curr = ctx;510 511 src = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);512 dst = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);513 514 clk_enable(dev->gate);515 g2d_reset(dev);516 517 spin_lock_irqsave(&dev->ctrl_lock, flags);518 519 g2d_set_src_size(dev, &ctx->in);520 g2d_set_src_addr(dev, vb2_dma_contig_plane_dma_addr(&src->vb2_buf, 0));521 522 g2d_set_dst_size(dev, &ctx->out);523 g2d_set_dst_addr(dev, vb2_dma_contig_plane_dma_addr(&dst->vb2_buf, 0));524 525 g2d_set_rop4(dev, ctx->rop);526 g2d_set_flip(dev, ctx->flip);527 528 if (ctx->in.c_width != ctx->out.c_width ||529 ctx->in.c_height != ctx->out.c_height) {530 if (dev->variant->hw_rev == TYPE_G2D_3X)531 cmd |= CMD_V3_ENABLE_STRETCH;532 else533 g2d_set_v41_stretch(dev, &ctx->in, &ctx->out);534 }535 536 g2d_set_cmd(dev, cmd);537 g2d_start(dev);538 539 spin_unlock_irqrestore(&dev->ctrl_lock, flags);540}541 542static irqreturn_t g2d_isr(int irq, void *prv)543{544 struct g2d_dev *dev = prv;545 struct g2d_ctx *ctx = dev->curr;546 struct vb2_v4l2_buffer *src, *dst;547 548 g2d_clear_int(dev);549 clk_disable(dev->gate);550 551 BUG_ON(ctx == NULL);552 553 src = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);554 dst = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);555 556 BUG_ON(src == NULL);557 BUG_ON(dst == NULL);558 559 dst->timecode = src->timecode;560 dst->vb2_buf.timestamp = src->vb2_buf.timestamp;561 dst->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;562 dst->flags |=563 src->flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK;564 565 v4l2_m2m_buf_done(src, VB2_BUF_STATE_DONE);566 v4l2_m2m_buf_done(dst, VB2_BUF_STATE_DONE);567 v4l2_m2m_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx);568 569 dev->curr = NULL;570 return IRQ_HANDLED;571}572 573static const struct v4l2_file_operations g2d_fops = {574 .owner = THIS_MODULE,575 .open = g2d_open,576 .release = g2d_release,577 .poll = v4l2_m2m_fop_poll,578 .unlocked_ioctl = video_ioctl2,579 .mmap = v4l2_m2m_fop_mmap,580};581 582static const struct v4l2_ioctl_ops g2d_ioctl_ops = {583 .vidioc_querycap = vidioc_querycap,584 585 .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt,586 .vidioc_g_fmt_vid_cap = vidioc_g_fmt,587 .vidioc_try_fmt_vid_cap = vidioc_try_fmt,588 .vidioc_s_fmt_vid_cap = vidioc_s_fmt,589 590 .vidioc_enum_fmt_vid_out = vidioc_enum_fmt,591 .vidioc_g_fmt_vid_out = vidioc_g_fmt,592 .vidioc_try_fmt_vid_out = vidioc_try_fmt,593 .vidioc_s_fmt_vid_out = vidioc_s_fmt,594 595 .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,596 .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,597 .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,598 .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,599 600 .vidioc_streamon = v4l2_m2m_ioctl_streamon,601 .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,602 603 .vidioc_g_selection = vidioc_g_selection,604 .vidioc_s_selection = vidioc_s_selection,605};606 607static const struct video_device g2d_videodev = {608 .name = G2D_NAME,609 .fops = &g2d_fops,610 .ioctl_ops = &g2d_ioctl_ops,611 .minor = -1,612 .release = video_device_release,613 .vfl_dir = VFL_DIR_M2M,614};615 616static const struct v4l2_m2m_ops g2d_m2m_ops = {617 .device_run = device_run,618};619 620static const struct of_device_id exynos_g2d_match[];621 622static int g2d_probe(struct platform_device *pdev)623{624 struct g2d_dev *dev;625 struct video_device *vfd;626 const struct of_device_id *of_id;627 int ret = 0;628 629 dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);630 if (!dev)631 return -ENOMEM;632 633 spin_lock_init(&dev->ctrl_lock);634 mutex_init(&dev->mutex);635 atomic_set(&dev->num_inst, 0);636 637 dev->regs = devm_platform_ioremap_resource(pdev, 0);638 if (IS_ERR(dev->regs))639 return PTR_ERR(dev->regs);640 641 dev->clk = clk_get(&pdev->dev, "sclk_fimg2d");642 if (IS_ERR(dev->clk)) {643 dev_err(&pdev->dev, "failed to get g2d clock\n");644 return -ENXIO;645 }646 647 ret = clk_prepare(dev->clk);648 if (ret) {649 dev_err(&pdev->dev, "failed to prepare g2d clock\n");650 goto put_clk;651 }652 653 dev->gate = clk_get(&pdev->dev, "fimg2d");654 if (IS_ERR(dev->gate)) {655 dev_err(&pdev->dev, "failed to get g2d clock gate\n");656 ret = -ENXIO;657 goto unprep_clk;658 }659 660 ret = clk_prepare(dev->gate);661 if (ret) {662 dev_err(&pdev->dev, "failed to prepare g2d clock gate\n");663 goto put_clk_gate;664 }665 666 ret = platform_get_irq(pdev, 0);667 if (ret < 0)668 goto unprep_clk_gate;669 670 dev->irq = ret;671 672 ret = devm_request_irq(&pdev->dev, dev->irq, g2d_isr,673 0, pdev->name, dev);674 if (ret) {675 dev_err(&pdev->dev, "failed to install IRQ\n");676 goto unprep_clk_gate;677 }678 679 vb2_dma_contig_set_max_seg_size(&pdev->dev, DMA_BIT_MASK(32));680 681 ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);682 if (ret)683 goto unprep_clk_gate;684 vfd = video_device_alloc();685 if (!vfd) {686 v4l2_err(&dev->v4l2_dev, "Failed to allocate video device\n");687 ret = -ENOMEM;688 goto unreg_v4l2_dev;689 }690 *vfd = g2d_videodev;691 set_bit(V4L2_FL_QUIRK_INVERTED_CROP, &vfd->flags);692 vfd->lock = &dev->mutex;693 vfd->v4l2_dev = &dev->v4l2_dev;694 vfd->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;695 696 platform_set_drvdata(pdev, dev);697 dev->m2m_dev = v4l2_m2m_init(&g2d_m2m_ops);698 if (IS_ERR(dev->m2m_dev)) {699 v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");700 ret = PTR_ERR(dev->m2m_dev);701 goto rel_vdev;702 }703 704 def_frame.stride = (def_frame.width * def_frame.fmt->depth) >> 3;705 706 of_id = of_match_node(exynos_g2d_match, pdev->dev.of_node);707 if (!of_id) {708 ret = -ENODEV;709 goto free_m2m;710 }711 dev->variant = (struct g2d_variant *)of_id->data;712 713 ret = video_register_device(vfd, VFL_TYPE_VIDEO, 0);714 if (ret) {715 v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");716 goto free_m2m;717 }718 video_set_drvdata(vfd, dev);719 dev->vfd = vfd;720 v4l2_info(&dev->v4l2_dev, "device registered as /dev/video%d\n",721 vfd->num);722 723 return 0;724 725free_m2m:726 v4l2_m2m_release(dev->m2m_dev);727rel_vdev:728 video_device_release(vfd);729unreg_v4l2_dev:730 v4l2_device_unregister(&dev->v4l2_dev);731unprep_clk_gate:732 clk_unprepare(dev->gate);733put_clk_gate:734 clk_put(dev->gate);735unprep_clk:736 clk_unprepare(dev->clk);737put_clk:738 clk_put(dev->clk);739 740 return ret;741}742 743static void g2d_remove(struct platform_device *pdev)744{745 struct g2d_dev *dev = platform_get_drvdata(pdev);746 747 v4l2_info(&dev->v4l2_dev, "Removing " G2D_NAME);748 v4l2_m2m_release(dev->m2m_dev);749 video_unregister_device(dev->vfd);750 v4l2_device_unregister(&dev->v4l2_dev);751 vb2_dma_contig_clear_max_seg_size(&pdev->dev);752 clk_unprepare(dev->gate);753 clk_put(dev->gate);754 clk_unprepare(dev->clk);755 clk_put(dev->clk);756}757 758static struct g2d_variant g2d_drvdata_v3x = {759 .hw_rev = TYPE_G2D_3X, /* Revision 3.0 for S5PV210 and Exynos4210 */760};761 762static struct g2d_variant g2d_drvdata_v4x = {763 .hw_rev = TYPE_G2D_4X, /* Revision 4.1 for Exynos4X12 and Exynos5 */764};765 766static const struct of_device_id exynos_g2d_match[] = {767 {768 .compatible = "samsung,s5pv210-g2d",769 .data = &g2d_drvdata_v3x,770 }, {771 .compatible = "samsung,exynos4212-g2d",772 .data = &g2d_drvdata_v4x,773 },774 {},775};776MODULE_DEVICE_TABLE(of, exynos_g2d_match);777 778static struct platform_driver g2d_pdrv = {779 .probe = g2d_probe,780 .remove_new = g2d_remove,781 .driver = {782 .name = G2D_NAME,783 .of_match_table = exynos_g2d_match,784 },785};786 787module_platform_driver(g2d_pdrv);788 789MODULE_AUTHOR("Kamil Debski <k.debski@samsung.com>");790MODULE_DESCRIPTION("S5P G2D 2d graphics accelerator driver");791MODULE_LICENSE("GPL");792