/* * Samsung S5P G2D - 2D Graphics Accelerator Driver * * Copyright (c) 2011 Samsung Electronics Co., Ltd. * Kamil Debski, * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the * License, or (at your option) any later version */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "g2d.h" #include "g2d-regs.h" #define fh2ctx(__fh) container_of(__fh, struct g2d_ctx, fh) static struct g2d_fmt formats[] = { { .name = "XRGB_8888", .fourcc = V4L2_PIX_FMT_RGB32, .depth = 32, .hw = COLOR_MODE(ORDER_XRGB, MODE_XRGB_8888), }, { .name = "RGB_565", .fourcc = V4L2_PIX_FMT_RGB565X, .depth = 16, .hw = COLOR_MODE(ORDER_XRGB, MODE_RGB_565), }, { .name = "XRGB_1555", .fourcc = V4L2_PIX_FMT_RGB555X, .depth = 16, .hw = COLOR_MODE(ORDER_XRGB, MODE_XRGB_1555), }, { .name = "XRGB_4444", .fourcc = V4L2_PIX_FMT_RGB444, .depth = 16, .hw = COLOR_MODE(ORDER_XRGB, MODE_XRGB_4444), }, { .name = "PACKED_RGB_888", .fourcc = V4L2_PIX_FMT_RGB24, .depth = 24, .hw = COLOR_MODE(ORDER_XRGB, MODE_PACKED_RGB_888), }, }; #define NUM_FORMATS ARRAY_SIZE(formats) static struct g2d_frame def_frame = { .width = DEFAULT_WIDTH, .height = DEFAULT_HEIGHT, .c_width = DEFAULT_WIDTH, .c_height = DEFAULT_HEIGHT, .o_width = 0, .o_height = 0, .fmt = &formats[0], .right = DEFAULT_WIDTH, .bottom = DEFAULT_HEIGHT, }; static struct g2d_fmt *find_fmt(struct v4l2_format *f) { unsigned int i; for (i = 0; i < NUM_FORMATS; i++) { if (formats[i].fourcc == f->fmt.pix.pixelformat) return &formats[i]; } return NULL; } static struct g2d_frame *get_frame(struct g2d_ctx *ctx, enum v4l2_buf_type type) { switch (type) { case V4L2_BUF_TYPE_VIDEO_OUTPUT: return &ctx->in; case V4L2_BUF_TYPE_VIDEO_CAPTURE: return &ctx->out; default: return ERR_PTR(-EINVAL); } } static int g2d_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, unsigned int *nplanes, unsigned int sizes[], struct device *alloc_devs[]) { struct g2d_ctx *ctx = vb2_get_drv_priv(vq); struct g2d_frame *f = get_frame(ctx, vq->type); if (IS_ERR(f)) return PTR_ERR(f); sizes[0] = f->size; *nplanes = 1; if (*nbuffers == 0) *nbuffers = 1; return 0; } static int g2d_buf_prepare(struct vb2_buffer *vb) { struct g2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); struct g2d_frame *f = get_frame(ctx, vb->vb2_queue->type); if (IS_ERR(f)) return PTR_ERR(f); vb2_set_plane_payload(vb, 0, f->size); return 0; } static void g2d_buf_queue(struct vb2_buffer *vb) { struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); struct g2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue); v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf); } static const struct vb2_ops g2d_qops = { .queue_setup = g2d_queue_setup, .buf_prepare = g2d_buf_prepare, .buf_queue = g2d_buf_queue, }; static int queue_init(void *priv, struct vb2_queue *src_vq, struct vb2_queue *dst_vq) { struct g2d_ctx *ctx = priv; int ret; src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT; src_vq->io_modes = VB2_MMAP | VB2_USERPTR; src_vq->drv_priv = ctx; src_vq->ops = &g2d_qops; src_vq->mem_ops = &vb2_dma_contig_memops; src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; src_vq->lock = &ctx->dev->mutex; src_vq->dev = ctx->dev->v4l2_dev.dev; ret = vb2_queue_init(src_vq); if (ret) return ret; dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; dst_vq->io_modes = VB2_MMAP | VB2_USERPTR; dst_vq->drv_priv = ctx; dst_vq->ops = &g2d_qops; dst_vq->mem_ops = &vb2_dma_contig_memops; dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer); dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY; dst_vq->lock = &ctx->dev->mutex; dst_vq->dev = ctx->dev->v4l2_dev.dev; return vb2_queue_init(dst_vq); } static int g2d_s_ctrl(struct v4l2_ctrl *ctrl) { struct g2d_ctx *ctx = container_of(ctrl->handler, struct g2d_ctx, ctrl_handler); unsigned long flags; spin_lock_irqsave(&ctx->dev->ctrl_lock, flags); switch (ctrl->id) { case V4L2_CID_COLORFX: if (ctrl->val == V4L2_COLORFX_NEGATIVE) ctx->rop = ROP4_INVERT; else ctx->rop = ROP4_COPY; break; case V4L2_CID_HFLIP: ctx->flip = ctx->ctrl_hflip->val | (ctx->ctrl_vflip->val << 1); break; } spin_unlock_irqrestore(&ctx->dev->ctrl_lock, flags); return 0; } static const struct v4l2_ctrl_ops g2d_ctrl_ops = { .s_ctrl = g2d_s_ctrl, }; static int g2d_setup_ctrls(struct g2d_ctx *ctx) { struct g2d_dev *dev = ctx->dev; v4l2_ctrl_handler_init(&ctx->ctrl_handler, 3); ctx->ctrl_hflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, &g2d_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0); ctx->ctrl_vflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, &g2d_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0); v4l2_ctrl_new_std_menu( &ctx->ctrl_handler, &g2d_ctrl_ops, V4L2_CID_COLORFX, V4L2_COLORFX_NEGATIVE, ~((1 << V4L2_COLORFX_NONE) | (1 << V4L2_COLORFX_NEGATIVE)), V4L2_COLORFX_NONE); if (ctx->ctrl_handler.error) { int err = ctx->ctrl_handler.error; v4l2_err(&dev->v4l2_dev, "g2d_setup_ctrls failed\n"); v4l2_ctrl_handler_free(&ctx->ctrl_handler); return err; } v4l2_ctrl_cluster(2, &ctx->ctrl_hflip); return 0; } static int g2d_open(struct file *file) { struct g2d_dev *dev = video_drvdata(file); struct g2d_ctx *ctx = NULL; int ret = 0; ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); if (!ctx) return -ENOMEM; ctx->dev = dev; /* Set default formats */ ctx->in = def_frame; ctx->out = def_frame; if (mutex_lock_interruptible(&dev->mutex)) { kfree(ctx); return -ERESTARTSYS; } ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init); if (IS_ERR(ctx->fh.m2m_ctx)) { ret = PTR_ERR(ctx->fh.m2m_ctx); mutex_unlock(&dev->mutex); kfree(ctx); return ret; } v4l2_fh_init(&ctx->fh, video_devdata(file)); file->private_data = &ctx->fh; v4l2_fh_add(&ctx->fh); g2d_setup_ctrls(ctx); /* Write the default values to the ctx struct */ v4l2_ctrl_handler_setup(&ctx->ctrl_handler); ctx->fh.ctrl_handler = &ctx->ctrl_handler; mutex_unlock(&dev->mutex); v4l2_info(&dev->v4l2_dev, "instance opened\n"); return 0; } static int g2d_release(struct file *file) { struct g2d_dev *dev = video_drvdata(file); struct g2d_ctx *ctx = fh2ctx(file->private_data); mutex_lock(&dev->mutex); v4l2_m2m_ctx_release(ctx->fh.m2m_ctx); mutex_unlock(&dev->mutex); v4l2_ctrl_handler_free(&ctx->ctrl_handler); v4l2_fh_del(&ctx->fh); v4l2_fh_exit(&ctx->fh); kfree(ctx); v4l2_info(&dev->v4l2_dev, "instance closed\n"); return 0; } static int vidioc_querycap(struct file *file, void *priv, struct v4l2_capability *cap) { strncpy(cap->driver, G2D_NAME, sizeof(cap->driver) - 1); strncpy(cap->card, G2D_NAME, sizeof(cap->card) - 1); cap->bus_info[0] = 0; cap->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING; cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS; return 0; } static int vidioc_enum_fmt(struct file *file, void *prv, struct v4l2_fmtdesc *f) { struct g2d_fmt *fmt; if (f->index >= NUM_FORMATS) return -EINVAL; fmt = &formats[f->index]; f->pixelformat = fmt->fourcc; strncpy(f->description, fmt->name, sizeof(f->description) - 1); return 0; } static int vidioc_g_fmt(struct file *file, void *prv, struct v4l2_format *f) { struct g2d_ctx *ctx = prv; struct vb2_queue *vq; struct g2d_frame *frm; vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); if (!vq) return -EINVAL; frm = get_frame(ctx, f->type); if (IS_ERR(frm)) return PTR_ERR(frm); f->fmt.pix.width = frm->width; f->fmt.pix.height = frm->height; f->fmt.pix.field = V4L2_FIELD_NONE; f->fmt.pix.pixelformat = frm->fmt->fourcc; f->fmt.pix.bytesperline = (frm->width * frm->fmt->depth) >> 3; f->fmt.pix.sizeimage = frm->size; return 0; } static int vidioc_try_fmt(struct file *file, void *prv, struct v4l2_format *f) { struct g2d_fmt *fmt; enum v4l2_field *field; fmt = find_fmt(f); if (!fmt) return -EINVAL; field = &f->fmt.pix.field; if (*field == V4L2_FIELD_ANY) *field = V4L2_FIELD_NONE; else if (*field != V4L2_FIELD_NONE) return -EINVAL; if (f->fmt.pix.width > MAX_WIDTH) f->fmt.pix.width = MAX_WIDTH; if (f->fmt.pix.height > MAX_HEIGHT) f->fmt.pix.height = MAX_HEIGHT; if (f->fmt.pix.width < 1) f->fmt.pix.width = 1; if (f->fmt.pix.height < 1) f->fmt.pix.height = 1; f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3; f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline; return 0; } static int vidioc_s_fmt(struct file *file, void *prv, struct v4l2_format *f) { struct g2d_ctx *ctx = prv; struct g2d_dev *dev = ctx->dev; struct vb2_queue *vq; struct g2d_frame *frm; struct g2d_fmt *fmt; int ret = 0; /* Adjust all values accordingly to the hardware capabilities * and chosen format. */ ret = vidioc_try_fmt(file, prv, f); if (ret) return ret; vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type); if (vb2_is_busy(vq)) { v4l2_err(&dev->v4l2_dev, "queue (%d) bust\n", f->type); return -EBUSY; } frm = get_frame(ctx, f->type); if (IS_ERR(frm)) return PTR_ERR(frm); fmt = find_fmt(f); if (!fmt) return -EINVAL; frm->width = f->fmt.pix.width; frm->height = f->fmt.pix.height; frm->size = f->fmt.pix.sizeimage; /* Reset crop settings */ frm->o_width = 0; frm->o_height = 0; frm->c_width = frm->width; frm->c_height = frm->height; frm->right = frm->width; frm->bottom = frm->height; frm->fmt = fmt; frm->stride = f->fmt.pix.bytesperline; return 0; } static int vidioc_cropcap(struct file *file, void *priv, struct v4l2_cropcap *cr) { struct g2d_ctx *ctx = priv; struct g2d_frame *f; f = get_frame(ctx, cr->type); if (IS_ERR(f)) return PTR_ERR(f); cr->bounds.left = 0; cr->bounds.top = 0; cr->bounds.width = f->width; cr->bounds.height = f->height; cr->defrect = cr->bounds; return 0; } static int vidioc_g_crop(struct file *file, void *prv, struct v4l2_crop *cr) { struct g2d_ctx *ctx = prv; struct g2d_frame *f; f = get_frame(ctx, cr->type); if (IS_ERR(f)) return PTR_ERR(f); cr->c.left = f->o_height; cr->c.top = f->o_width; cr->c.width = f->c_width; cr->c.height = f->c_height; return 0; } static int vidioc_try_crop(struct file *file, void *prv, const struct v4l2_crop *cr) { struct g2d_ctx *ctx = prv; struct g2d_dev *dev = ctx->dev; struct g2d_frame *f; f = get_frame(ctx, cr->type); if (IS_ERR(f)) return PTR_ERR(f); if (cr->c.top < 0 || cr->c.left < 0) { v4l2_err(&dev->v4l2_dev, "doesn't support negative values for top & left\n"); return -EINVAL; } return 0; } static int vidioc_s_crop(struct file *file, void *prv, const struct v4l2_crop *cr) { struct g2d_ctx *ctx = prv; struct g2d_frame *f; int ret; ret = vidioc_try_crop(file, prv, cr); if (ret) return ret; f = get_frame(ctx, cr->type); if (IS_ERR(f)) return PTR_ERR(f); f->c_width = cr->c.width; f->c_height = cr->c.height; f->o_width = cr->c.left; f->o_height = cr->c.top; f->bottom = f->o_height + f->c_height; f->right = f->o_width + f->c_width; return 0; } static void job_abort(void *prv) { struct g2d_ctx *ctx = prv; struct g2d_dev *dev = ctx->dev; if (dev->curr == NULL) /* No job currently running */ return; wait_event_timeout(dev->irq_queue, dev->curr == NULL, msecs_to_jiffies(G2D_TIMEOUT)); } static void device_run(void *prv) { struct g2d_ctx *ctx = prv; struct g2d_dev *dev = ctx->dev; struct vb2_v4l2_buffer *src, *dst; unsigned long flags; u32 cmd = 0; dev->curr = ctx; src = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); dst = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); clk_enable(dev->gate); g2d_reset(dev); spin_lock_irqsave(&dev->ctrl_lock, flags); g2d_set_src_size(dev, &ctx->in); g2d_set_src_addr(dev, vb2_dma_contig_plane_dma_addr(&src->vb2_buf, 0)); g2d_set_dst_size(dev, &ctx->out); g2d_set_dst_addr(dev, vb2_dma_contig_plane_dma_addr(&dst->vb2_buf, 0)); g2d_set_rop4(dev, ctx->rop); g2d_set_flip(dev, ctx->flip); if (ctx->in.c_width != ctx->out.c_width || ctx->in.c_height != ctx->out.c_height) { if (dev->variant->hw_rev == TYPE_G2D_3X) cmd |= CMD_V3_ENABLE_STRETCH; else g2d_set_v41_stretch(dev, &ctx->in, &ctx->out); } g2d_set_cmd(dev, cmd); g2d_start(dev); spin_unlock_irqrestore(&dev->ctrl_lock, flags); } static irqreturn_t g2d_isr(int irq, void *prv) { struct g2d_dev *dev = prv; struct g2d_ctx *ctx = dev->curr; struct vb2_v4l2_buffer *src, *dst; g2d_clear_int(dev); clk_disable(dev->gate); BUG_ON(ctx == NULL); src = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx); dst = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx); BUG_ON(src == NULL); BUG_ON(dst == NULL); dst->timecode = src->timecode; dst->vb2_buf.timestamp = src->vb2_buf.timestamp; dst->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK; dst->flags |= src->flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK; v4l2_m2m_buf_done(src, VB2_BUF_STATE_DONE); v4l2_m2m_buf_done(dst, VB2_BUF_STATE_DONE); v4l2_m2m_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx); dev->curr = NULL; wake_up(&dev->irq_queue); return IRQ_HANDLED; } static const struct v4l2_file_operations g2d_fops = { .owner = THIS_MODULE, .open = g2d_open, .release = g2d_release, .poll = v4l2_m2m_fop_poll, .unlocked_ioctl = video_ioctl2, .mmap = v4l2_m2m_fop_mmap, }; static const struct v4l2_ioctl_ops g2d_ioctl_ops = { .vidioc_querycap = vidioc_querycap, .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt, .vidioc_g_fmt_vid_cap = vidioc_g_fmt, .vidioc_try_fmt_vid_cap = vidioc_try_fmt, .vidioc_s_fmt_vid_cap = vidioc_s_fmt, .vidioc_enum_fmt_vid_out = vidioc_enum_fmt, .vidioc_g_fmt_vid_out = vidioc_g_fmt, .vidioc_try_fmt_vid_out = vidioc_try_fmt, .vidioc_s_fmt_vid_out = vidioc_s_fmt, .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs, .vidioc_querybuf = v4l2_m2m_ioctl_querybuf, .vidioc_qbuf = v4l2_m2m_ioctl_qbuf, .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf, .vidioc_streamon = v4l2_m2m_ioctl_streamon, .vidioc_streamoff = v4l2_m2m_ioctl_streamoff, .vidioc_g_crop = vidioc_g_crop, .vidioc_s_crop = vidioc_s_crop, .vidioc_cropcap = vidioc_cropcap, }; static const struct video_device g2d_videodev = { .name = G2D_NAME, .fops = &g2d_fops, .ioctl_ops = &g2d_ioctl_ops, .minor = -1, .release = video_device_release, .vfl_dir = VFL_DIR_M2M, }; static const struct v4l2_m2m_ops g2d_m2m_ops = { .device_run = device_run, .job_abort = job_abort, }; static const struct of_device_id exynos_g2d_match[]; static int g2d_probe(struct platform_device *pdev) { struct g2d_dev *dev; struct video_device *vfd; struct resource *res; const struct of_device_id *of_id; int ret = 0; dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL); if (!dev) return -ENOMEM; spin_lock_init(&dev->ctrl_lock); mutex_init(&dev->mutex); atomic_set(&dev->num_inst, 0); init_waitqueue_head(&dev->irq_queue); res = platform_get_resource(pdev, IORESOURCE_MEM, 0); dev->regs = devm_ioremap_resource(&pdev->dev, res); if (IS_ERR(dev->regs)) return PTR_ERR(dev->regs); dev->clk = clk_get(&pdev->dev, "sclk_fimg2d"); if (IS_ERR(dev->clk)) { dev_err(&pdev->dev, "failed to get g2d clock\n"); return -ENXIO; } ret = clk_prepare(dev->clk); if (ret) { dev_err(&pdev->dev, "failed to prepare g2d clock\n"); goto put_clk; } dev->gate = clk_get(&pdev->dev, "fimg2d"); if (IS_ERR(dev->gate)) { dev_err(&pdev->dev, "failed to get g2d clock gate\n"); ret = -ENXIO; goto unprep_clk; } ret = clk_prepare(dev->gate); if (ret) { dev_err(&pdev->dev, "failed to prepare g2d clock gate\n"); goto put_clk_gate; } res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (!res) { dev_err(&pdev->dev, "failed to find IRQ\n"); ret = -ENXIO; goto unprep_clk_gate; } dev->irq = res->start; ret = devm_request_irq(&pdev->dev, dev->irq, g2d_isr, 0, pdev->name, dev); if (ret) { dev_err(&pdev->dev, "failed to install IRQ\n"); goto unprep_clk_gate; } vb2_dma_contig_set_max_seg_size(&pdev->dev, DMA_BIT_MASK(32)); ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev); if (ret) goto unprep_clk_gate; vfd = video_device_alloc(); if (!vfd) { v4l2_err(&dev->v4l2_dev, "Failed to allocate video device\n"); ret = -ENOMEM; goto unreg_v4l2_dev; } *vfd = g2d_videodev; vfd->lock = &dev->mutex; vfd->v4l2_dev = &dev->v4l2_dev; ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0); if (ret) { v4l2_err(&dev->v4l2_dev, "Failed to register video device\n"); goto rel_vdev; } video_set_drvdata(vfd, dev); snprintf(vfd->name, sizeof(vfd->name), "%s", g2d_videodev.name); dev->vfd = vfd; v4l2_info(&dev->v4l2_dev, "device registered as /dev/video%d\n", vfd->num); platform_set_drvdata(pdev, dev); dev->m2m_dev = v4l2_m2m_init(&g2d_m2m_ops); if (IS_ERR(dev->m2m_dev)) { v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n"); ret = PTR_ERR(dev->m2m_dev); goto unreg_video_dev; } def_frame.stride = (def_frame.width * def_frame.fmt->depth) >> 3; of_id = of_match_node(exynos_g2d_match, pdev->dev.of_node); if (!of_id) { ret = -ENODEV; goto unreg_video_dev; } dev->variant = (struct g2d_variant *)of_id->data; return 0; unreg_video_dev: video_unregister_device(dev->vfd); rel_vdev: video_device_release(vfd); unreg_v4l2_dev: v4l2_device_unregister(&dev->v4l2_dev); unprep_clk_gate: clk_unprepare(dev->gate); put_clk_gate: clk_put(dev->gate); unprep_clk: clk_unprepare(dev->clk); put_clk: clk_put(dev->clk); return ret; } static int g2d_remove(struct platform_device *pdev) { struct g2d_dev *dev = platform_get_drvdata(pdev); v4l2_info(&dev->v4l2_dev, "Removing " G2D_NAME); v4l2_m2m_release(dev->m2m_dev); video_unregister_device(dev->vfd); v4l2_device_unregister(&dev->v4l2_dev); vb2_dma_contig_clear_max_seg_size(&pdev->dev); clk_unprepare(dev->gate); clk_put(dev->gate); clk_unprepare(dev->clk); clk_put(dev->clk); return 0; } static struct g2d_variant g2d_drvdata_v3x = { .hw_rev = TYPE_G2D_3X, /* Revision 3.0 for S5PV210 and Exynos4210 */ }; static struct g2d_variant g2d_drvdata_v4x = { .hw_rev = TYPE_G2D_4X, /* Revision 4.1 for Exynos4X12 and Exynos5 */ }; static const struct of_device_id exynos_g2d_match[] = { { .compatible = "samsung,s5pv210-g2d", .data = &g2d_drvdata_v3x, }, { .compatible = "samsung,exynos4212-g2d", .data = &g2d_drvdata_v4x, }, {}, }; MODULE_DEVICE_TABLE(of, exynos_g2d_match); static struct platform_driver g2d_pdrv = { .probe = g2d_probe, .remove = g2d_remove, .driver = { .name = G2D_NAME, .of_match_table = exynos_g2d_match, }, }; module_platform_driver(g2d_pdrv); MODULE_AUTHOR("Kamil Debski "); MODULE_DESCRIPTION("S5P G2D 2d graphics accelerator driver"); MODULE_LICENSE("GPL");