1 // SPDX-License-Identifier: GPL-2.0-only
25 #include "regs-rotator.h"
28  * Rotator supports image crop/rotator and input/output DMA operations.
35 #define rot_read(offset)	readl(rot->regs + (offset))
36 #define rot_write(cfg, offset)	writel(cfg, rot->regs + (offset))
49  * A structure of rotator context.
52  * @clock: rotator gate clock.
53  * @limit_tbl: limitation of rotator.
106 	if (rot->task) {  in rotator_irq_handler()
107 		struct exynos_drm_ipp_task *task = rot->task;  in rotator_irq_handler()
109 		rot->task = NULL;  in rotator_irq_handler()
110 		pm_runtime_mark_last_busy(rot->dev);  in rotator_irq_handler()
111 		pm_runtime_put_autosuspend(rot->dev);  in rotator_irq_handler()
113 			irq_status == ROT_IRQ_STATUS_COMPLETE ? 0 : -EINVAL);  in rotator_irq_handler()
144 	val = ROT_SET_BUF_SIZE_H(buf->buf.height) |  in rotator_src_set_buf()
145 	      ROT_SET_BUF_SIZE_W(buf->buf.pitch[0] / buf->format->cpp[0]);  in rotator_src_set_buf()
149 	val = ROT_CROP_POS_Y(buf->rect.y) | ROT_CROP_POS_X(buf->rect.x);  in rotator_src_set_buf()
151 	val = ROT_SRC_CROP_SIZE_H(buf->rect.h) |  in rotator_src_set_buf()
152 	      ROT_SRC_CROP_SIZE_W(buf->rect.w);  in rotator_src_set_buf()
156 	rot_write(buf->dma_addr[0], ROT_SRC_BUF_ADDR(0));  in rotator_src_set_buf()
157 	rot_write(buf->dma_addr[1], ROT_SRC_BUF_ADDR(1));  in rotator_src_set_buf()
192 	val = ROT_SET_BUF_SIZE_H(buf->buf.height) |  in rotator_dst_set_buf()
193 	      ROT_SET_BUF_SIZE_W(buf->buf.pitch[0] / buf->format->cpp[0]);  in rotator_dst_set_buf()
197 	val = ROT_CROP_POS_Y(buf->rect.y) | ROT_CROP_POS_X(buf->rect.x);  in rotator_dst_set_buf()
201 	rot_write(buf->dma_addr[0], ROT_DST_BUF_ADDR(0));  in rotator_dst_set_buf()
202 	rot_write(buf->dma_addr[1], ROT_DST_BUF_ADDR(1));  in rotator_dst_set_buf()
224 	ret = pm_runtime_resume_and_get(rot->dev);  in rotator_commit()
226 		dev_err(rot->dev, "failed to enable ROTATOR device.\n");  in rotator_commit()
229 	rot->task = task;  in rotator_commit()
231 	rotator_src_set_fmt(rot, task->src.buf.fourcc);  in rotator_commit()
232 	rotator_src_set_buf(rot, &task->src);  in rotator_commit()
233 	rotator_dst_set_transf(rot, task->transform.rotation);  in rotator_commit()
234 	rotator_dst_set_buf(rot, &task->dst);  in rotator_commit()
248 	struct exynos_drm_ipp *ipp = &rot->ipp;  in rotator_bind()
250 	rot->drm_dev = drm_dev;  in rotator_bind()
251 	ipp->drm_dev = drm_dev;  in rotator_bind()
252 	exynos_drm_register_dma(drm_dev, dev, &rot->dma_priv);  in rotator_bind()
256 			   rot->formats, rot->num_formats, "rotator");  in rotator_bind()
258 	dev_info(dev, "The exynos rotator has been probed successfully\n");  in rotator_bind()
267 	struct exynos_drm_ipp *ipp = &rot->ipp;  in rotator_unbind()
270 	exynos_drm_unregister_dma(rot->drm_dev, rot->dev, &rot->dma_priv);  in rotator_unbind()
280 	struct device *dev = &pdev->dev;  in rotator_probe()
288 		return -ENOMEM;  in rotator_probe()
291 	rot->formats = variant->formats;  in rotator_probe()
292 	rot->num_formats = variant->num_formats;  in rotator_probe()
293 	rot->dev = dev;  in rotator_probe()
294 	rot->regs = devm_platform_ioremap_resource(pdev, 0);  in rotator_probe()
295 	if (IS_ERR(rot->regs))  in rotator_probe()
296 		return PTR_ERR(rot->regs);  in rotator_probe()
309 	rot->clock = devm_clk_get(dev, "rotator");  in rotator_probe()
310 	if (IS_ERR(rot->clock)) {  in rotator_probe()
312 		return PTR_ERR(rot->clock);  in rotator_probe()
334 	struct device *dev = &pdev->dev;  in rotator_remove()
345 	clk_disable_unprepare(rot->clock);  in rotator_runtime_suspend()
353 	return clk_prepare_enable(rot->clock);  in rotator_runtime_resume()
433 		.compatible = "samsung,s5pv210-rotator",
436 		.compatible = "samsung,exynos4210-rotator",
439 		.compatible = "samsung,exynos4212-rotator",
442 		.compatible = "samsung,exynos5250-rotator",
456 		.name	= "exynos-rotator",