| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| CK Hu | 957 | 65.37% | 1 | 8.33% |
| stu.hsieh at mediatek.com | 375 | 25.61% | 4 | 33.33% |
| Yt Shen | 122 | 8.33% | 3 | 25.00% |
| Bibby Hsieh | 4 | 0.27% | 1 | 8.33% |
| Sam Ravnborg | 3 | 0.20% | 1 | 8.33% |
| Thomas Gleixner | 2 | 0.14% | 1 | 8.33% |
| Rob Herring | 1 | 0.07% | 1 | 8.33% |
| Total | 1464 | 12 |
// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (c) 2015 MediaTek Inc. */ #include <linux/clk.h> #include <linux/component.h> #include <linux/module.h> #include <linux/of_device.h> #include <linux/of_irq.h> #include <linux/platform_device.h> #include "mtk_drm_crtc.h" #include "mtk_drm_ddp_comp.h" #define DISP_REG_RDMA_INT_ENABLE 0x0000 #define DISP_REG_RDMA_INT_STATUS 0x0004 #define RDMA_TARGET_LINE_INT BIT(5) #define RDMA_FIFO_UNDERFLOW_INT BIT(4) #define RDMA_EOF_ABNORMAL_INT BIT(3) #define RDMA_FRAME_END_INT BIT(2) #define RDMA_FRAME_START_INT BIT(1) #define RDMA_REG_UPDATE_INT BIT(0) #define DISP_REG_RDMA_GLOBAL_CON 0x0010 #define RDMA_ENGINE_EN BIT(0) #define RDMA_MODE_MEMORY BIT(1) #define DISP_REG_RDMA_SIZE_CON_0 0x0014 #define RDMA_MATRIX_ENABLE BIT(17) #define RDMA_MATRIX_INT_MTX_SEL GENMASK(23, 20) #define RDMA_MATRIX_INT_MTX_BT601_to_RGB (6 << 20) #define DISP_REG_RDMA_SIZE_CON_1 0x0018 #define DISP_REG_RDMA_TARGET_LINE 0x001c #define DISP_RDMA_MEM_CON 0x0024 #define MEM_MODE_INPUT_FORMAT_RGB565 (0x000 << 4) #define MEM_MODE_INPUT_FORMAT_RGB888 (0x001 << 4) #define MEM_MODE_INPUT_FORMAT_RGBA8888 (0x002 << 4) #define MEM_MODE_INPUT_FORMAT_ARGB8888 (0x003 << 4) #define MEM_MODE_INPUT_FORMAT_UYVY (0x004 << 4) #define MEM_MODE_INPUT_FORMAT_YUYV (0x005 << 4) #define MEM_MODE_INPUT_SWAP BIT(8) #define DISP_RDMA_MEM_SRC_PITCH 0x002c #define DISP_RDMA_MEM_GMC_SETTING_0 0x0030 #define DISP_REG_RDMA_FIFO_CON 0x0040 #define RDMA_FIFO_UNDERFLOW_EN BIT(31) #define RDMA_FIFO_PSEUDO_SIZE(bytes) (((bytes) / 16) << 16) #define RDMA_OUTPUT_VALID_FIFO_THRESHOLD(bytes) ((bytes) / 16) #define RDMA_FIFO_SIZE(rdma) ((rdma)->data->fifo_size) #define DISP_RDMA_MEM_START_ADDR 0x0f00 #define RDMA_MEM_GMC 0x40402020 struct mtk_disp_rdma_data { unsigned int fifo_size; }; /** * struct mtk_disp_rdma - DISP_RDMA driver structure * @ddp_comp - structure containing type enum and hardware resources * @crtc - associated crtc to report irq events to */ struct mtk_disp_rdma { struct mtk_ddp_comp ddp_comp; struct drm_crtc *crtc; const struct mtk_disp_rdma_data *data; }; static inline struct mtk_disp_rdma *comp_to_rdma(struct mtk_ddp_comp *comp) { return container_of(comp, struct mtk_disp_rdma, ddp_comp); } static irqreturn_t mtk_disp_rdma_irq_handler(int irq, void *dev_id) { struct mtk_disp_rdma *priv = dev_id; struct mtk_ddp_comp *rdma = &priv->ddp_comp; /* Clear frame completion interrupt */ writel(0x0, rdma->regs + DISP_REG_RDMA_INT_STATUS); if (!priv->crtc) return IRQ_NONE; mtk_crtc_ddp_irq(priv->crtc, rdma); return IRQ_HANDLED; } static void rdma_update_bits(struct mtk_ddp_comp *comp, unsigned int reg, unsigned int mask, unsigned int val) { unsigned int tmp = readl(comp->regs + reg); tmp = (tmp & ~mask) | (val & mask); writel(tmp, comp->regs + reg); } static void mtk_rdma_enable_vblank(struct mtk_ddp_comp *comp, struct drm_crtc *crtc) { struct mtk_disp_rdma *rdma = comp_to_rdma(comp); rdma->crtc = crtc; rdma_update_bits(comp, DISP_REG_RDMA_INT_ENABLE, RDMA_FRAME_END_INT, RDMA_FRAME_END_INT); } static void mtk_rdma_disable_vblank(struct mtk_ddp_comp *comp) { struct mtk_disp_rdma *rdma = comp_to_rdma(comp); rdma->crtc = NULL; rdma_update_bits(comp, DISP_REG_RDMA_INT_ENABLE, RDMA_FRAME_END_INT, 0); } static void mtk_rdma_start(struct mtk_ddp_comp *comp) { rdma_update_bits(comp, DISP_REG_RDMA_GLOBAL_CON, RDMA_ENGINE_EN, RDMA_ENGINE_EN); } static void mtk_rdma_stop(struct mtk_ddp_comp *comp) { rdma_update_bits(comp, DISP_REG_RDMA_GLOBAL_CON, RDMA_ENGINE_EN, 0); } static void mtk_rdma_config(struct mtk_ddp_comp *comp, unsigned int width, unsigned int height, unsigned int vrefresh, unsigned int bpc) { unsigned int threshold; unsigned int reg; struct mtk_disp_rdma *rdma = comp_to_rdma(comp); rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0, 0xfff, width); rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_1, 0xfffff, height); /* * Enable FIFO underflow since DSI and DPI can't be blocked. * Keep the FIFO pseudo size reset default of 8 KiB. Set the * output threshold to 6 microseconds with 7/6 overhead to * account for blanking, and with a pixel depth of 4 bytes: */ threshold = width * height * vrefresh * 4 * 7 / 1000000; reg = RDMA_FIFO_UNDERFLOW_EN | RDMA_FIFO_PSEUDO_SIZE(RDMA_FIFO_SIZE(rdma)) | RDMA_OUTPUT_VALID_FIFO_THRESHOLD(threshold); writel(reg, comp->regs + DISP_REG_RDMA_FIFO_CON); } static unsigned int rdma_fmt_convert(struct mtk_disp_rdma *rdma, unsigned int fmt) { /* The return value in switch "MEM_MODE_INPUT_FORMAT_XXX" * is defined in mediatek HW data sheet. * The alphabet order in XXX is no relation to data * arrangement in memory. */ switch (fmt) { default: case DRM_FORMAT_RGB565: return MEM_MODE_INPUT_FORMAT_RGB565; case DRM_FORMAT_BGR565: return MEM_MODE_INPUT_FORMAT_RGB565 | MEM_MODE_INPUT_SWAP; case DRM_FORMAT_RGB888: return MEM_MODE_INPUT_FORMAT_RGB888; case DRM_FORMAT_BGR888: return MEM_MODE_INPUT_FORMAT_RGB888 | MEM_MODE_INPUT_SWAP; case DRM_FORMAT_RGBX8888: case DRM_FORMAT_RGBA8888: return MEM_MODE_INPUT_FORMAT_ARGB8888; case DRM_FORMAT_BGRX8888: case DRM_FORMAT_BGRA8888: return MEM_MODE_INPUT_FORMAT_ARGB8888 | MEM_MODE_INPUT_SWAP; case DRM_FORMAT_XRGB8888: case DRM_FORMAT_ARGB8888: return MEM_MODE_INPUT_FORMAT_RGBA8888; case DRM_FORMAT_XBGR8888: case DRM_FORMAT_ABGR8888: return MEM_MODE_INPUT_FORMAT_RGBA8888 | MEM_MODE_INPUT_SWAP; case DRM_FORMAT_UYVY: return MEM_MODE_INPUT_FORMAT_UYVY; case DRM_FORMAT_YUYV: return MEM_MODE_INPUT_FORMAT_YUYV; } } static unsigned int mtk_rdma_layer_nr(struct mtk_ddp_comp *comp) { return 1; } static void mtk_rdma_layer_config(struct mtk_ddp_comp *comp, unsigned int idx, struct mtk_plane_state *state) { struct mtk_disp_rdma *rdma = comp_to_rdma(comp); struct mtk_plane_pending_state *pending = &state->pending; unsigned int addr = pending->addr; unsigned int pitch = pending->pitch & 0xffff; unsigned int fmt = pending->format; unsigned int con; con = rdma_fmt_convert(rdma, fmt); writel_relaxed(con, comp->regs + DISP_RDMA_MEM_CON); if (fmt == DRM_FORMAT_UYVY || fmt == DRM_FORMAT_YUYV) { rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0, RDMA_MATRIX_ENABLE, RDMA_MATRIX_ENABLE); rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0, RDMA_MATRIX_INT_MTX_SEL, RDMA_MATRIX_INT_MTX_BT601_to_RGB); } else { rdma_update_bits(comp, DISP_REG_RDMA_SIZE_CON_0, RDMA_MATRIX_ENABLE, 0); } writel_relaxed(addr, comp->regs + DISP_RDMA_MEM_START_ADDR); writel_relaxed(pitch, comp->regs + DISP_RDMA_MEM_SRC_PITCH); writel(RDMA_MEM_GMC, comp->regs + DISP_RDMA_MEM_GMC_SETTING_0); rdma_update_bits(comp, DISP_REG_RDMA_GLOBAL_CON, RDMA_MODE_MEMORY, RDMA_MODE_MEMORY); } static const struct mtk_ddp_comp_funcs mtk_disp_rdma_funcs = { .config = mtk_rdma_config, .start = mtk_rdma_start, .stop = mtk_rdma_stop, .enable_vblank = mtk_rdma_enable_vblank, .disable_vblank = mtk_rdma_disable_vblank, .layer_nr = mtk_rdma_layer_nr, .layer_config = mtk_rdma_layer_config, }; static int mtk_disp_rdma_bind(struct device *dev, struct device *master, void *data) { struct mtk_disp_rdma *priv = dev_get_drvdata(dev); struct drm_device *drm_dev = data; int ret; ret = mtk_ddp_comp_register(drm_dev, &priv->ddp_comp); if (ret < 0) { dev_err(dev, "Failed to register component %pOF: %d\n", dev->of_node, ret); return ret; } return 0; } static void mtk_disp_rdma_unbind(struct device *dev, struct device *master, void *data) { struct mtk_disp_rdma *priv = dev_get_drvdata(dev); struct drm_device *drm_dev = data; mtk_ddp_comp_unregister(drm_dev, &priv->ddp_comp); } static const struct component_ops mtk_disp_rdma_component_ops = { .bind = mtk_disp_rdma_bind, .unbind = mtk_disp_rdma_unbind, }; static int mtk_disp_rdma_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct mtk_disp_rdma *priv; int comp_id; int irq; int ret; priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM; irq = platform_get_irq(pdev, 0); if (irq < 0) return irq; comp_id = mtk_ddp_comp_get_id(dev->of_node, MTK_DISP_RDMA); if (comp_id < 0) { dev_err(dev, "Failed to identify by alias: %d\n", comp_id); return comp_id; } ret = mtk_ddp_comp_init(dev, dev->of_node, &priv->ddp_comp, comp_id, &mtk_disp_rdma_funcs); if (ret) { dev_err(dev, "Failed to initialize component: %d\n", ret); return ret; } /* Disable and clear pending interrupts */ writel(0x0, priv->ddp_comp.regs + DISP_REG_RDMA_INT_ENABLE); writel(0x0, priv->ddp_comp.regs + DISP_REG_RDMA_INT_STATUS); ret = devm_request_irq(dev, irq, mtk_disp_rdma_irq_handler, IRQF_TRIGGER_NONE, dev_name(dev), priv); if (ret < 0) { dev_err(dev, "Failed to request irq %d: %d\n", irq, ret); return ret; } priv->data = of_device_get_match_data(dev); platform_set_drvdata(pdev, priv); ret = component_add(dev, &mtk_disp_rdma_component_ops); if (ret) dev_err(dev, "Failed to add component: %d\n", ret); return ret; } static int mtk_disp_rdma_remove(struct platform_device *pdev) { component_del(&pdev->dev, &mtk_disp_rdma_component_ops); return 0; } static const struct mtk_disp_rdma_data mt2701_rdma_driver_data = { .fifo_size = SZ_4K, }; static const struct mtk_disp_rdma_data mt8173_rdma_driver_data = { .fifo_size = SZ_8K, }; static const struct of_device_id mtk_disp_rdma_driver_dt_match[] = { { .compatible = "mediatek,mt2701-disp-rdma", .data = &mt2701_rdma_driver_data}, { .compatible = "mediatek,mt8173-disp-rdma", .data = &mt8173_rdma_driver_data}, {}, }; MODULE_DEVICE_TABLE(of, mtk_disp_rdma_driver_dt_match); struct platform_driver mtk_disp_rdma_driver = { .probe = mtk_disp_rdma_probe, .remove = mtk_disp_rdma_remove, .driver = { .name = "mediatek-disp-rdma", .owner = THIS_MODULE, .of_match_table = mtk_disp_rdma_driver_dt_match, }, };
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