| /* |
| * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd |
| * Author:Mark Yao <mark.yao@rock-chips.com> |
| * |
| * This software is licensed under the terms of the GNU General Public |
| * License version 2, as published by the Free Software Foundation, and |
| * may be copied, distributed, and modified under those terms. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| #include <drm/drm.h> |
| #include <drm/drmP.h> |
| #include <drm/drm_atomic.h> |
| #include <drm/drm_crtc.h> |
| #include <drm/drm_crtc_helper.h> |
| #include <drm/drm_flip_work.h> |
| #include <drm/drm_plane_helper.h> |
| #ifdef CONFIG_DRM_ANALOGIX_DP |
| #include <drm/bridge/analogix_dp.h> |
| #endif |
| |
| #include <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/platform_device.h> |
| #include <linux/clk.h> |
| #include <linux/iopoll.h> |
| #include <linux/of.h> |
| #include <linux/of_device.h> |
| #include <linux/pm_runtime.h> |
| #include <linux/component.h> |
| |
| #include <linux/reset.h> |
| #include <linux/delay.h> |
| |
| #include "rockchip_drm_drv.h" |
| #include "rockchip_drm_gem.h" |
| #include "rockchip_drm_fb.h" |
| #include "rockchip_drm_psr.h" |
| #include "rockchip_drm_vop.h" |
| |
| #define __REG_SET_RELAXED(x, off, mask, shift, v, write_mask) \ |
| vop_mask_write(x, off, mask, shift, v, write_mask, true) |
| |
| #define __REG_SET_NORMAL(x, off, mask, shift, v, write_mask) \ |
| vop_mask_write(x, off, mask, shift, v, write_mask, false) |
| |
| #define REG_SET(x, base, reg, v, mode) \ |
| __REG_SET_##mode(x, base + reg.offset, \ |
| reg.mask, reg.shift, v, reg.write_mask) |
| #define REG_SET_MASK(x, base, reg, mask, v, mode) \ |
| __REG_SET_##mode(x, base + reg.offset, \ |
| mask, reg.shift, v, reg.write_mask) |
| |
| #define VOP_WIN_SET(x, win, name, v) \ |
| REG_SET(x, win->base, win->phy->name, v, RELAXED) |
| #define VOP_SCL_SET(x, win, name, v) \ |
| REG_SET(x, win->base, win->phy->scl->name, v, RELAXED) |
| #define VOP_SCL_SET_EXT(x, win, name, v) \ |
| REG_SET(x, win->base, win->phy->scl->ext->name, v, RELAXED) |
| #define VOP_CTRL_SET(x, name, v) \ |
| REG_SET(x, 0, (x)->data->ctrl->name, v, NORMAL) |
| |
| #define VOP_INTR_GET(vop, name) \ |
| vop_read_reg(vop, 0, &vop->data->ctrl->name) |
| |
| #define VOP_INTR_SET(vop, name, mask, v) \ |
| REG_SET_MASK(vop, 0, vop->data->intr->name, mask, v, NORMAL) |
| #define VOP_INTR_SET_TYPE(vop, name, type, v) \ |
| do { \ |
| int i, reg = 0, mask = 0; \ |
| for (i = 0; i < vop->data->intr->nintrs; i++) { \ |
| if (vop->data->intr->intrs[i] & type) { \ |
| reg |= (v) << i; \ |
| mask |= 1 << i; \ |
| } \ |
| } \ |
| VOP_INTR_SET(vop, name, mask, reg); \ |
| } while (0) |
| #define VOP_INTR_GET_TYPE(vop, name, type) \ |
| vop_get_intr_type(vop, &vop->data->intr->name, type) |
| |
| #define VOP_WIN_GET(x, win, name) \ |
| vop_read_reg(x, win->base, &win->phy->name) |
| |
| #define VOP_WIN_GET_YRGBADDR(vop, win) \ |
| vop_readl(vop, win->base + win->phy->yrgb_mst.offset) |
| |
| #define to_vop(x) container_of(x, struct vop, crtc) |
| #define to_vop_win(x) container_of(x, struct vop_win, base) |
| |
| enum vop_pending { |
| VOP_PENDING_FB_UNREF, |
| }; |
| |
| struct vop_win { |
| struct drm_plane base; |
| const struct vop_win_data *data; |
| struct vop *vop; |
| }; |
| |
| struct vop { |
| struct drm_crtc crtc; |
| struct device *dev; |
| struct drm_device *drm_dev; |
| bool is_enabled; |
| |
| /* mutex vsync_ work */ |
| struct mutex vsync_mutex; |
| bool vsync_work_pending; |
| struct completion dsp_hold_completion; |
| |
| /* protected by dev->event_lock */ |
| struct drm_pending_vblank_event *event; |
| |
| struct drm_flip_work fb_unref_work; |
| unsigned long pending; |
| |
| struct completion line_flag_completion; |
| |
| const struct vop_data *data; |
| |
| uint32_t *regsbak; |
| void __iomem *regs; |
| |
| /* physical map length of vop register */ |
| uint32_t len; |
| |
| /* one time only one process allowed to config the register */ |
| spinlock_t reg_lock; |
| /* lock vop irq reg */ |
| spinlock_t irq_lock; |
| |
| unsigned int irq; |
| |
| /* vop AHP clk */ |
| struct clk *hclk; |
| /* vop dclk */ |
| struct clk *dclk; |
| /* vop share memory frequency */ |
| struct clk *aclk; |
| |
| /* vop dclk reset */ |
| struct reset_control *dclk_rst; |
| |
| struct vop_win win[]; |
| }; |
| |
| static inline void vop_writel(struct vop *vop, uint32_t offset, uint32_t v) |
| { |
| writel(v, vop->regs + offset); |
| vop->regsbak[offset >> 2] = v; |
| } |
| |
| static inline uint32_t vop_readl(struct vop *vop, uint32_t offset) |
| { |
| return readl(vop->regs + offset); |
| } |
| |
| static inline uint32_t vop_read_reg(struct vop *vop, uint32_t base, |
| const struct vop_reg *reg) |
| { |
| return (vop_readl(vop, base + reg->offset) >> reg->shift) & reg->mask; |
| } |
| |
| static inline void vop_mask_write(struct vop *vop, uint32_t offset, |
| uint32_t mask, uint32_t shift, uint32_t v, |
| bool write_mask, bool relaxed) |
| { |
| if (!mask) |
| return; |
| |
| if (write_mask) { |
| v = ((v << shift) & 0xffff) | (mask << (shift + 16)); |
| } else { |
| uint32_t cached_val = vop->regsbak[offset >> 2]; |
| |
| v = (cached_val & ~(mask << shift)) | ((v & mask) << shift); |
| vop->regsbak[offset >> 2] = v; |
| } |
| |
| if (relaxed) |
| writel_relaxed(v, vop->regs + offset); |
| else |
| writel(v, vop->regs + offset); |
| } |
| |
| static inline uint32_t vop_get_intr_type(struct vop *vop, |
| const struct vop_reg *reg, int type) |
| { |
| uint32_t i, ret = 0; |
| uint32_t regs = vop_read_reg(vop, 0, reg); |
| |
| for (i = 0; i < vop->data->intr->nintrs; i++) { |
| if ((type & vop->data->intr->intrs[i]) && (regs & 1 << i)) |
| ret |= vop->data->intr->intrs[i]; |
| } |
| |
| return ret; |
| } |
| |
| static inline void vop_cfg_done(struct vop *vop) |
| { |
| VOP_CTRL_SET(vop, cfg_done, 1); |
| } |
| |
| static bool has_rb_swapped(uint32_t format) |
| { |
| switch (format) { |
| case DRM_FORMAT_XBGR8888: |
| case DRM_FORMAT_ABGR8888: |
| case DRM_FORMAT_BGR888: |
| case DRM_FORMAT_BGR565: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| static enum vop_data_format vop_convert_format(uint32_t format) |
| { |
| switch (format) { |
| case DRM_FORMAT_XRGB8888: |
| case DRM_FORMAT_ARGB8888: |
| case DRM_FORMAT_XBGR8888: |
| case DRM_FORMAT_ABGR8888: |
| return VOP_FMT_ARGB8888; |
| case DRM_FORMAT_RGB888: |
| case DRM_FORMAT_BGR888: |
| return VOP_FMT_RGB888; |
| case DRM_FORMAT_RGB565: |
| case DRM_FORMAT_BGR565: |
| return VOP_FMT_RGB565; |
| case DRM_FORMAT_NV12: |
| return VOP_FMT_YUV420SP; |
| case DRM_FORMAT_NV16: |
| return VOP_FMT_YUV422SP; |
| case DRM_FORMAT_NV24: |
| return VOP_FMT_YUV444SP; |
| default: |
| DRM_ERROR("unsupported format[%08x]\n", format); |
| return -EINVAL; |
| } |
| } |
| |
| static bool is_yuv_support(uint32_t format) |
| { |
| switch (format) { |
| case DRM_FORMAT_NV12: |
| case DRM_FORMAT_NV16: |
| case DRM_FORMAT_NV24: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| static bool is_alpha_support(uint32_t format) |
| { |
| switch (format) { |
| case DRM_FORMAT_ARGB8888: |
| case DRM_FORMAT_ABGR8888: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| static uint16_t scl_vop_cal_scale(enum scale_mode mode, uint32_t src, |
| uint32_t dst, bool is_horizontal, |
| int vsu_mode, int *vskiplines) |
| { |
| uint16_t val = 1 << SCL_FT_DEFAULT_FIXPOINT_SHIFT; |
| |
| if (is_horizontal) { |
| if (mode == SCALE_UP) |
| val = GET_SCL_FT_BIC(src, dst); |
| else if (mode == SCALE_DOWN) |
| val = GET_SCL_FT_BILI_DN(src, dst); |
| } else { |
| if (mode == SCALE_UP) { |
| if (vsu_mode == SCALE_UP_BIL) |
| val = GET_SCL_FT_BILI_UP(src, dst); |
| else |
| val = GET_SCL_FT_BIC(src, dst); |
| } else if (mode == SCALE_DOWN) { |
| if (vskiplines) { |
| *vskiplines = scl_get_vskiplines(src, dst); |
| val = scl_get_bili_dn_vskip(src, dst, |
| *vskiplines); |
| } else { |
| val = GET_SCL_FT_BILI_DN(src, dst); |
| } |
| } |
| } |
| |
| return val; |
| } |
| |
| static void scl_vop_cal_scl_fac(struct vop *vop, const struct vop_win_data *win, |
| uint32_t src_w, uint32_t src_h, uint32_t dst_w, |
| uint32_t dst_h, uint32_t pixel_format) |
| { |
| uint16_t yrgb_hor_scl_mode, yrgb_ver_scl_mode; |
| uint16_t cbcr_hor_scl_mode = SCALE_NONE; |
| uint16_t cbcr_ver_scl_mode = SCALE_NONE; |
| int hsub = drm_format_horz_chroma_subsampling(pixel_format); |
| int vsub = drm_format_vert_chroma_subsampling(pixel_format); |
| bool is_yuv = is_yuv_support(pixel_format); |
| uint16_t cbcr_src_w = src_w / hsub; |
| uint16_t cbcr_src_h = src_h / vsub; |
| uint16_t vsu_mode; |
| uint16_t lb_mode; |
| uint32_t val; |
| int vskiplines = 0; |
| |
| if (dst_w > 3840) { |
| DRM_DEV_ERROR(vop->dev, "Maximum dst width (3840) exceeded\n"); |
| return; |
| } |
| |
| if (!win->phy->scl->ext) { |
| VOP_SCL_SET(vop, win, scale_yrgb_x, |
| scl_cal_scale2(src_w, dst_w)); |
| VOP_SCL_SET(vop, win, scale_yrgb_y, |
| scl_cal_scale2(src_h, dst_h)); |
| if (is_yuv) { |
| VOP_SCL_SET(vop, win, scale_cbcr_x, |
| scl_cal_scale2(cbcr_src_w, dst_w)); |
| VOP_SCL_SET(vop, win, scale_cbcr_y, |
| scl_cal_scale2(cbcr_src_h, dst_h)); |
| } |
| return; |
| } |
| |
| yrgb_hor_scl_mode = scl_get_scl_mode(src_w, dst_w); |
| yrgb_ver_scl_mode = scl_get_scl_mode(src_h, dst_h); |
| |
| if (is_yuv) { |
| cbcr_hor_scl_mode = scl_get_scl_mode(cbcr_src_w, dst_w); |
| cbcr_ver_scl_mode = scl_get_scl_mode(cbcr_src_h, dst_h); |
| if (cbcr_hor_scl_mode == SCALE_DOWN) |
| lb_mode = scl_vop_cal_lb_mode(dst_w, true); |
| else |
| lb_mode = scl_vop_cal_lb_mode(cbcr_src_w, true); |
| } else { |
| if (yrgb_hor_scl_mode == SCALE_DOWN) |
| lb_mode = scl_vop_cal_lb_mode(dst_w, false); |
| else |
| lb_mode = scl_vop_cal_lb_mode(src_w, false); |
| } |
| |
| VOP_SCL_SET_EXT(vop, win, lb_mode, lb_mode); |
| if (lb_mode == LB_RGB_3840X2) { |
| if (yrgb_ver_scl_mode != SCALE_NONE) { |
| DRM_DEV_ERROR(vop->dev, "not allow yrgb ver scale\n"); |
| return; |
| } |
| if (cbcr_ver_scl_mode != SCALE_NONE) { |
| DRM_DEV_ERROR(vop->dev, "not allow cbcr ver scale\n"); |
| return; |
| } |
| vsu_mode = SCALE_UP_BIL; |
| } else if (lb_mode == LB_RGB_2560X4) { |
| vsu_mode = SCALE_UP_BIL; |
| } else { |
| vsu_mode = SCALE_UP_BIC; |
| } |
| |
| val = scl_vop_cal_scale(yrgb_hor_scl_mode, src_w, dst_w, |
| true, 0, NULL); |
| VOP_SCL_SET(vop, win, scale_yrgb_x, val); |
| val = scl_vop_cal_scale(yrgb_ver_scl_mode, src_h, dst_h, |
| false, vsu_mode, &vskiplines); |
| VOP_SCL_SET(vop, win, scale_yrgb_y, val); |
| |
| VOP_SCL_SET_EXT(vop, win, vsd_yrgb_gt4, vskiplines == 4); |
| VOP_SCL_SET_EXT(vop, win, vsd_yrgb_gt2, vskiplines == 2); |
| |
| VOP_SCL_SET_EXT(vop, win, yrgb_hor_scl_mode, yrgb_hor_scl_mode); |
| VOP_SCL_SET_EXT(vop, win, yrgb_ver_scl_mode, yrgb_ver_scl_mode); |
| VOP_SCL_SET_EXT(vop, win, yrgb_hsd_mode, SCALE_DOWN_BIL); |
| VOP_SCL_SET_EXT(vop, win, yrgb_vsd_mode, SCALE_DOWN_BIL); |
| VOP_SCL_SET_EXT(vop, win, yrgb_vsu_mode, vsu_mode); |
| if (is_yuv) { |
| val = scl_vop_cal_scale(cbcr_hor_scl_mode, cbcr_src_w, |
| dst_w, true, 0, NULL); |
| VOP_SCL_SET(vop, win, scale_cbcr_x, val); |
| val = scl_vop_cal_scale(cbcr_ver_scl_mode, cbcr_src_h, |
| dst_h, false, vsu_mode, &vskiplines); |
| VOP_SCL_SET(vop, win, scale_cbcr_y, val); |
| |
| VOP_SCL_SET_EXT(vop, win, vsd_cbcr_gt4, vskiplines == 4); |
| VOP_SCL_SET_EXT(vop, win, vsd_cbcr_gt2, vskiplines == 2); |
| VOP_SCL_SET_EXT(vop, win, cbcr_hor_scl_mode, cbcr_hor_scl_mode); |
| VOP_SCL_SET_EXT(vop, win, cbcr_ver_scl_mode, cbcr_ver_scl_mode); |
| VOP_SCL_SET_EXT(vop, win, cbcr_hsd_mode, SCALE_DOWN_BIL); |
| VOP_SCL_SET_EXT(vop, win, cbcr_vsd_mode, SCALE_DOWN_BIL); |
| VOP_SCL_SET_EXT(vop, win, cbcr_vsu_mode, vsu_mode); |
| } |
| } |
| |
| static void vop_dsp_hold_valid_irq_enable(struct vop *vop) |
| { |
| unsigned long flags; |
| |
| if (WARN_ON(!vop->is_enabled)) |
| return; |
| |
| spin_lock_irqsave(&vop->irq_lock, flags); |
| |
| VOP_INTR_SET_TYPE(vop, clear, DSP_HOLD_VALID_INTR, 1); |
| VOP_INTR_SET_TYPE(vop, enable, DSP_HOLD_VALID_INTR, 1); |
| |
| spin_unlock_irqrestore(&vop->irq_lock, flags); |
| } |
| |
| static void vop_dsp_hold_valid_irq_disable(struct vop *vop) |
| { |
| unsigned long flags; |
| |
| if (WARN_ON(!vop->is_enabled)) |
| return; |
| |
| spin_lock_irqsave(&vop->irq_lock, flags); |
| |
| VOP_INTR_SET_TYPE(vop, enable, DSP_HOLD_VALID_INTR, 0); |
| |
| spin_unlock_irqrestore(&vop->irq_lock, flags); |
| } |
| |
| /* |
| * (1) each frame starts at the start of the Vsync pulse which is signaled by |
| * the "FRAME_SYNC" interrupt. |
| * (2) the active data region of each frame ends at dsp_vact_end |
| * (3) we should program this same number (dsp_vact_end) into dsp_line_frag_num, |
| * to get "LINE_FLAG" interrupt at the end of the active on screen data. |
| * |
| * VOP_INTR_CTRL0.dsp_line_frag_num = VOP_DSP_VACT_ST_END.dsp_vact_end |
| * Interrupts |
| * LINE_FLAG -------------------------------+ |
| * FRAME_SYNC ----+ | |
| * | | |
| * v v |
| * | Vsync | Vbp | Vactive | Vfp | |
| * ^ ^ ^ ^ |
| * | | | | |
| * | | | | |
| * dsp_vs_end ------------+ | | | VOP_DSP_VTOTAL_VS_END |
| * dsp_vact_start --------------+ | | VOP_DSP_VACT_ST_END |
| * dsp_vact_end ----------------------------+ | VOP_DSP_VACT_ST_END |
| * dsp_total -------------------------------------+ VOP_DSP_VTOTAL_VS_END |
| */ |
| static bool vop_line_flag_irq_is_enabled(struct vop *vop) |
| { |
| uint32_t line_flag_irq; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&vop->irq_lock, flags); |
| |
| line_flag_irq = VOP_INTR_GET_TYPE(vop, enable, LINE_FLAG_INTR); |
| |
| spin_unlock_irqrestore(&vop->irq_lock, flags); |
| |
| return !!line_flag_irq; |
| } |
| |
| static void vop_line_flag_irq_enable(struct vop *vop) |
| { |
| unsigned long flags; |
| |
| if (WARN_ON(!vop->is_enabled)) |
| return; |
| |
| spin_lock_irqsave(&vop->irq_lock, flags); |
| |
| VOP_INTR_SET_TYPE(vop, clear, LINE_FLAG_INTR, 1); |
| VOP_INTR_SET_TYPE(vop, enable, LINE_FLAG_INTR, 1); |
| |
| spin_unlock_irqrestore(&vop->irq_lock, flags); |
| } |
| |
| static void vop_line_flag_irq_disable(struct vop *vop) |
| { |
| unsigned long flags; |
| |
| if (WARN_ON(!vop->is_enabled)) |
| return; |
| |
| spin_lock_irqsave(&vop->irq_lock, flags); |
| |
| VOP_INTR_SET_TYPE(vop, enable, LINE_FLAG_INTR, 0); |
| |
| spin_unlock_irqrestore(&vop->irq_lock, flags); |
| } |
| |
| static int vop_enable(struct drm_crtc *crtc) |
| { |
| struct vop *vop = to_vop(crtc); |
| int ret; |
| |
| ret = pm_runtime_get_sync(vop->dev); |
| if (ret < 0) { |
| dev_err(vop->dev, "failed to get pm runtime: %d\n", ret); |
| return ret; |
| } |
| |
| ret = clk_enable(vop->hclk); |
| if (WARN_ON(ret < 0)) |
| goto err_put_pm_runtime; |
| |
| ret = clk_enable(vop->dclk); |
| if (WARN_ON(ret < 0)) |
| goto err_disable_hclk; |
| |
| ret = clk_enable(vop->aclk); |
| if (WARN_ON(ret < 0)) |
| goto err_disable_dclk; |
| |
| /* |
| * Slave iommu shares power, irq and clock with vop. It was associated |
| * automatically with this master device via common driver code. |
| * Now that we have enabled the clock we attach it to the shared drm |
| * mapping. |
| */ |
| ret = rockchip_drm_dma_attach_device(vop->drm_dev, vop->dev); |
| if (ret) { |
| dev_err(vop->dev, "failed to attach dma mapping, %d\n", ret); |
| goto err_disable_aclk; |
| } |
| |
| memcpy(vop->regs, vop->regsbak, vop->len); |
| vop_cfg_done(vop); |
| |
| /* |
| * At here, vop clock & iommu is enable, R/W vop regs would be safe. |
| */ |
| vop->is_enabled = true; |
| |
| spin_lock(&vop->reg_lock); |
| |
| VOP_CTRL_SET(vop, standby, 0); |
| |
| spin_unlock(&vop->reg_lock); |
| |
| enable_irq(vop->irq); |
| |
| drm_crtc_vblank_on(crtc); |
| |
| return 0; |
| |
| err_disable_aclk: |
| clk_disable(vop->aclk); |
| err_disable_dclk: |
| clk_disable(vop->dclk); |
| err_disable_hclk: |
| clk_disable(vop->hclk); |
| err_put_pm_runtime: |
| pm_runtime_put_sync(vop->dev); |
| return ret; |
| } |
| |
| static void vop_crtc_disable(struct drm_crtc *crtc) |
| { |
| struct vop *vop = to_vop(crtc); |
| int i; |
| |
| WARN_ON(vop->event); |
| |
| rockchip_drm_psr_deactivate(&vop->crtc); |
| |
| /* |
| * We need to make sure that all windows are disabled before we |
| * disable that crtc. Otherwise we might try to scan from a destroyed |
| * buffer later. |
| */ |
| for (i = 0; i < vop->data->win_size; i++) { |
| struct vop_win *vop_win = &vop->win[i]; |
| const struct vop_win_data *win = vop_win->data; |
| |
| spin_lock(&vop->reg_lock); |
| VOP_WIN_SET(vop, win, enable, 0); |
| spin_unlock(&vop->reg_lock); |
| } |
| |
| vop_cfg_done(vop); |
| |
| drm_crtc_vblank_off(crtc); |
| |
| /* |
| * Vop standby will take effect at end of current frame, |
| * if dsp hold valid irq happen, it means standby complete. |
| * |
| * we must wait standby complete when we want to disable aclk, |
| * if not, memory bus maybe dead. |
| */ |
| reinit_completion(&vop->dsp_hold_completion); |
| vop_dsp_hold_valid_irq_enable(vop); |
| |
| spin_lock(&vop->reg_lock); |
| |
| VOP_CTRL_SET(vop, standby, 1); |
| |
| spin_unlock(&vop->reg_lock); |
| |
| wait_for_completion(&vop->dsp_hold_completion); |
| |
| vop_dsp_hold_valid_irq_disable(vop); |
| |
| disable_irq(vop->irq); |
| |
| vop->is_enabled = false; |
| |
| /* |
| * vop standby complete, so iommu detach is safe. |
| */ |
| rockchip_drm_dma_detach_device(vop->drm_dev, vop->dev); |
| |
| clk_disable(vop->dclk); |
| clk_disable(vop->aclk); |
| clk_disable(vop->hclk); |
| pm_runtime_put(vop->dev); |
| |
| if (crtc->state->event && !crtc->state->active) { |
| spin_lock_irq(&crtc->dev->event_lock); |
| drm_crtc_send_vblank_event(crtc, crtc->state->event); |
| spin_unlock_irq(&crtc->dev->event_lock); |
| |
| crtc->state->event = NULL; |
| } |
| } |
| |
| static void vop_plane_destroy(struct drm_plane *plane) |
| { |
| drm_plane_cleanup(plane); |
| } |
| |
| static int vop_plane_atomic_check(struct drm_plane *plane, |
| struct drm_plane_state *state) |
| { |
| struct drm_crtc *crtc = state->crtc; |
| struct drm_crtc_state *crtc_state; |
| struct drm_framebuffer *fb = state->fb; |
| struct vop_win *vop_win = to_vop_win(plane); |
| const struct vop_win_data *win = vop_win->data; |
| int ret; |
| struct drm_rect clip; |
| int min_scale = win->phy->scl ? FRAC_16_16(1, 8) : |
| DRM_PLANE_HELPER_NO_SCALING; |
| int max_scale = win->phy->scl ? FRAC_16_16(8, 1) : |
| DRM_PLANE_HELPER_NO_SCALING; |
| |
| if (!crtc || !fb) |
| return 0; |
| |
| crtc_state = drm_atomic_get_existing_crtc_state(state->state, crtc); |
| if (WARN_ON(!crtc_state)) |
| return -EINVAL; |
| |
| clip.x1 = 0; |
| clip.y1 = 0; |
| clip.x2 = crtc_state->adjusted_mode.hdisplay; |
| clip.y2 = crtc_state->adjusted_mode.vdisplay; |
| |
| ret = drm_plane_helper_check_state(state, &clip, |
| min_scale, max_scale, |
| true, true); |
| if (ret) |
| return ret; |
| |
| if (!state->visible) |
| return 0; |
| |
| ret = vop_convert_format(fb->format->format); |
| if (ret < 0) |
| return ret; |
| |
| /* |
| * Src.x1 can be odd when do clip, but yuv plane start point |
| * need align with 2 pixel. |
| */ |
| if (is_yuv_support(fb->format->format) && ((state->src.x1 >> 16) % 2)) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| static void vop_plane_atomic_disable(struct drm_plane *plane, |
| struct drm_plane_state *old_state) |
| { |
| struct vop_win *vop_win = to_vop_win(plane); |
| const struct vop_win_data *win = vop_win->data; |
| struct vop *vop = to_vop(old_state->crtc); |
| |
| if (!old_state->crtc) |
| return; |
| |
| spin_lock(&vop->reg_lock); |
| |
| VOP_WIN_SET(vop, win, enable, 0); |
| |
| spin_unlock(&vop->reg_lock); |
| } |
| |
| static void vop_plane_atomic_update(struct drm_plane *plane, |
| struct drm_plane_state *old_state) |
| { |
| struct drm_plane_state *state = plane->state; |
| struct drm_crtc *crtc = state->crtc; |
| struct vop_win *vop_win = to_vop_win(plane); |
| const struct vop_win_data *win = vop_win->data; |
| struct vop *vop = to_vop(state->crtc); |
| struct drm_framebuffer *fb = state->fb; |
| unsigned int actual_w, actual_h; |
| unsigned int dsp_stx, dsp_sty; |
| uint32_t act_info, dsp_info, dsp_st; |
| struct drm_rect *src = &state->src; |
| struct drm_rect *dest = &state->dst; |
| struct drm_gem_object *obj, *uv_obj; |
| struct rockchip_gem_object *rk_obj, *rk_uv_obj; |
| unsigned long offset; |
| dma_addr_t dma_addr; |
| uint32_t val; |
| bool rb_swap; |
| int format; |
| |
| /* |
| * can't update plane when vop is disabled. |
| */ |
| if (WARN_ON(!crtc)) |
| return; |
| |
| if (WARN_ON(!vop->is_enabled)) |
| return; |
| |
| if (!state->visible) { |
| vop_plane_atomic_disable(plane, old_state); |
| return; |
| } |
| |
| obj = rockchip_fb_get_gem_obj(fb, 0); |
| rk_obj = to_rockchip_obj(obj); |
| |
| actual_w = drm_rect_width(src) >> 16; |
| actual_h = drm_rect_height(src) >> 16; |
| act_info = (actual_h - 1) << 16 | ((actual_w - 1) & 0xffff); |
| |
| dsp_info = (drm_rect_height(dest) - 1) << 16; |
| dsp_info |= (drm_rect_width(dest) - 1) & 0xffff; |
| |
| dsp_stx = dest->x1 + crtc->mode.htotal - crtc->mode.hsync_start; |
| dsp_sty = dest->y1 + crtc->mode.vtotal - crtc->mode.vsync_start; |
| dsp_st = dsp_sty << 16 | (dsp_stx & 0xffff); |
| |
| offset = (src->x1 >> 16) * fb->format->cpp[0]; |
| offset += (src->y1 >> 16) * fb->pitches[0]; |
| dma_addr = rk_obj->dma_addr + offset + fb->offsets[0]; |
| |
| format = vop_convert_format(fb->format->format); |
| |
| spin_lock(&vop->reg_lock); |
| |
| VOP_WIN_SET(vop, win, format, format); |
| VOP_WIN_SET(vop, win, yrgb_vir, fb->pitches[0] >> 2); |
| VOP_WIN_SET(vop, win, yrgb_mst, dma_addr); |
| if (is_yuv_support(fb->format->format)) { |
| int hsub = drm_format_horz_chroma_subsampling(fb->format->format); |
| int vsub = drm_format_vert_chroma_subsampling(fb->format->format); |
| int bpp = fb->format->cpp[1]; |
| |
| uv_obj = rockchip_fb_get_gem_obj(fb, 1); |
| rk_uv_obj = to_rockchip_obj(uv_obj); |
| |
| offset = (src->x1 >> 16) * bpp / hsub; |
| offset += (src->y1 >> 16) * fb->pitches[1] / vsub; |
| |
| dma_addr = rk_uv_obj->dma_addr + offset + fb->offsets[1]; |
| VOP_WIN_SET(vop, win, uv_vir, fb->pitches[1] >> 2); |
| VOP_WIN_SET(vop, win, uv_mst, dma_addr); |
| } |
| |
| if (win->phy->scl) |
| scl_vop_cal_scl_fac(vop, win, actual_w, actual_h, |
| drm_rect_width(dest), drm_rect_height(dest), |
| fb->format->format); |
| |
| VOP_WIN_SET(vop, win, act_info, act_info); |
| VOP_WIN_SET(vop, win, dsp_info, dsp_info); |
| VOP_WIN_SET(vop, win, dsp_st, dsp_st); |
| |
| rb_swap = has_rb_swapped(fb->format->format); |
| VOP_WIN_SET(vop, win, rb_swap, rb_swap); |
| |
| if (is_alpha_support(fb->format->format)) { |
| VOP_WIN_SET(vop, win, dst_alpha_ctl, |
| DST_FACTOR_M0(ALPHA_SRC_INVERSE)); |
| val = SRC_ALPHA_EN(1) | SRC_COLOR_M0(ALPHA_SRC_PRE_MUL) | |
| SRC_ALPHA_M0(ALPHA_STRAIGHT) | |
| SRC_BLEND_M0(ALPHA_PER_PIX) | |
| SRC_ALPHA_CAL_M0(ALPHA_NO_SATURATION) | |
| SRC_FACTOR_M0(ALPHA_ONE); |
| VOP_WIN_SET(vop, win, src_alpha_ctl, val); |
| } else { |
| VOP_WIN_SET(vop, win, src_alpha_ctl, SRC_ALPHA_EN(0)); |
| } |
| |
| VOP_WIN_SET(vop, win, enable, 1); |
| spin_unlock(&vop->reg_lock); |
| } |
| |
| static const struct drm_plane_helper_funcs plane_helper_funcs = { |
| .atomic_check = vop_plane_atomic_check, |
| .atomic_update = vop_plane_atomic_update, |
| .atomic_disable = vop_plane_atomic_disable, |
| }; |
| |
| static const struct drm_plane_funcs vop_plane_funcs = { |
| .update_plane = drm_atomic_helper_update_plane, |
| .disable_plane = drm_atomic_helper_disable_plane, |
| .destroy = vop_plane_destroy, |
| .reset = drm_atomic_helper_plane_reset, |
| .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, |
| .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, |
| }; |
| |
| static int vop_crtc_enable_vblank(struct drm_crtc *crtc) |
| { |
| struct vop *vop = to_vop(crtc); |
| unsigned long flags; |
| |
| if (WARN_ON(!vop->is_enabled)) |
| return -EPERM; |
| |
| spin_lock_irqsave(&vop->irq_lock, flags); |
| |
| VOP_INTR_SET_TYPE(vop, clear, FS_INTR, 1); |
| VOP_INTR_SET_TYPE(vop, enable, FS_INTR, 1); |
| |
| spin_unlock_irqrestore(&vop->irq_lock, flags); |
| |
| return 0; |
| } |
| |
| static void vop_crtc_disable_vblank(struct drm_crtc *crtc) |
| { |
| struct vop *vop = to_vop(crtc); |
| unsigned long flags; |
| |
| if (WARN_ON(!vop->is_enabled)) |
| return; |
| |
| spin_lock_irqsave(&vop->irq_lock, flags); |
| |
| VOP_INTR_SET_TYPE(vop, enable, FS_INTR, 0); |
| |
| spin_unlock_irqrestore(&vop->irq_lock, flags); |
| } |
| |
| static bool vop_crtc_mode_fixup(struct drm_crtc *crtc, |
| const struct drm_display_mode *mode, |
| struct drm_display_mode *adjusted_mode) |
| { |
| struct vop *vop = to_vop(crtc); |
| |
| adjusted_mode->clock = |
| clk_round_rate(vop->dclk, mode->clock * 1000) / 1000; |
| |
| return true; |
| } |
| |
| static void vop_crtc_enable(struct drm_crtc *crtc) |
| { |
| struct vop *vop = to_vop(crtc); |
| struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc->state); |
| struct drm_display_mode *adjusted_mode = &crtc->state->adjusted_mode; |
| u16 hsync_len = adjusted_mode->hsync_end - adjusted_mode->hsync_start; |
| u16 hdisplay = adjusted_mode->hdisplay; |
| u16 htotal = adjusted_mode->htotal; |
| u16 hact_st = adjusted_mode->htotal - adjusted_mode->hsync_start; |
| u16 hact_end = hact_st + hdisplay; |
| u16 vdisplay = adjusted_mode->vdisplay; |
| u16 vtotal = adjusted_mode->vtotal; |
| u16 vsync_len = adjusted_mode->vsync_end - adjusted_mode->vsync_start; |
| u16 vact_st = adjusted_mode->vtotal - adjusted_mode->vsync_start; |
| u16 vact_end = vact_st + vdisplay; |
| uint32_t pin_pol, val; |
| int ret; |
| |
| WARN_ON(vop->event); |
| |
| ret = vop_enable(crtc); |
| if (ret) { |
| DRM_DEV_ERROR(vop->dev, "Failed to enable vop (%d)\n", ret); |
| return; |
| } |
| |
| /* |
| * If dclk rate is zero, mean that scanout is stop, |
| * we don't need wait any more. |
| */ |
| if (clk_get_rate(vop->dclk)) { |
| /* |
| * Rk3288 vop timing register is immediately, when configure |
| * display timing on display time, may cause tearing. |
| * |
| * Vop standby will take effect at end of current frame, |
| * if dsp hold valid irq happen, it means standby complete. |
| * |
| * mode set: |
| * standby and wait complete --> |---- |
| * | display time |
| * |---- |
| * |---> dsp hold irq |
| * configure display timing --> | |
| * standby exit | |
| * | new frame start. |
| */ |
| |
| reinit_completion(&vop->dsp_hold_completion); |
| vop_dsp_hold_valid_irq_enable(vop); |
| |
| spin_lock(&vop->reg_lock); |
| |
| VOP_CTRL_SET(vop, standby, 1); |
| |
| spin_unlock(&vop->reg_lock); |
| |
| wait_for_completion(&vop->dsp_hold_completion); |
| |
| vop_dsp_hold_valid_irq_disable(vop); |
| } |
| |
| pin_pol = BIT(DCLK_INVERT); |
| pin_pol |= (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC) ? |
| BIT(HSYNC_POSITIVE) : 0; |
| pin_pol |= (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC) ? |
| BIT(VSYNC_POSITIVE) : 0; |
| VOP_CTRL_SET(vop, pin_pol, pin_pol); |
| |
| switch (s->output_type) { |
| case DRM_MODE_CONNECTOR_LVDS: |
| VOP_CTRL_SET(vop, rgb_en, 1); |
| VOP_CTRL_SET(vop, rgb_pin_pol, pin_pol); |
| break; |
| case DRM_MODE_CONNECTOR_eDP: |
| VOP_CTRL_SET(vop, edp_pin_pol, pin_pol); |
| VOP_CTRL_SET(vop, edp_en, 1); |
| break; |
| case DRM_MODE_CONNECTOR_HDMIA: |
| VOP_CTRL_SET(vop, hdmi_pin_pol, pin_pol); |
| VOP_CTRL_SET(vop, hdmi_en, 1); |
| break; |
| case DRM_MODE_CONNECTOR_DSI: |
| VOP_CTRL_SET(vop, mipi_pin_pol, pin_pol); |
| VOP_CTRL_SET(vop, mipi_en, 1); |
| break; |
| case DRM_MODE_CONNECTOR_DisplayPort: |
| pin_pol &= ~BIT(DCLK_INVERT); |
| VOP_CTRL_SET(vop, dp_pin_pol, pin_pol); |
| VOP_CTRL_SET(vop, dp_en, 1); |
| break; |
| default: |
| DRM_DEV_ERROR(vop->dev, "unsupported connector_type [%d]\n", |
| s->output_type); |
| } |
| VOP_CTRL_SET(vop, out_mode, s->output_mode); |
| |
| VOP_CTRL_SET(vop, htotal_pw, (htotal << 16) | hsync_len); |
| val = hact_st << 16; |
| val |= hact_end; |
| VOP_CTRL_SET(vop, hact_st_end, val); |
| VOP_CTRL_SET(vop, hpost_st_end, val); |
| |
| VOP_CTRL_SET(vop, vtotal_pw, (vtotal << 16) | vsync_len); |
| val = vact_st << 16; |
| val |= vact_end; |
| VOP_CTRL_SET(vop, vact_st_end, val); |
| VOP_CTRL_SET(vop, vpost_st_end, val); |
| |
| VOP_CTRL_SET(vop, line_flag_num[0], vact_end); |
| |
| clk_set_rate(vop->dclk, adjusted_mode->clock * 1000); |
| |
| VOP_CTRL_SET(vop, standby, 0); |
| |
| rockchip_drm_psr_activate(&vop->crtc); |
| } |
| |
| static bool vop_fs_irq_is_pending(struct vop *vop) |
| { |
| return VOP_INTR_GET_TYPE(vop, status, FS_INTR); |
| } |
| |
| static void vop_wait_for_irq_handler(struct vop *vop) |
| { |
| bool pending; |
| int ret; |
| |
| /* |
| * Spin until frame start interrupt status bit goes low, which means |
| * that interrupt handler was invoked and cleared it. The timeout of |
| * 10 msecs is really too long, but it is just a safety measure if |
| * something goes really wrong. The wait will only happen in the very |
| * unlikely case of a vblank happening exactly at the same time and |
| * shouldn't exceed microseconds range. |
| */ |
| ret = readx_poll_timeout_atomic(vop_fs_irq_is_pending, vop, pending, |
| !pending, 0, 10 * 1000); |
| if (ret) |
| DRM_DEV_ERROR(vop->dev, "VOP vblank IRQ stuck for 10 ms\n"); |
| |
| synchronize_irq(vop->irq); |
| } |
| |
| static void vop_crtc_atomic_flush(struct drm_crtc *crtc, |
| struct drm_crtc_state *old_crtc_state) |
| { |
| struct drm_atomic_state *old_state = old_crtc_state->state; |
| struct drm_plane_state *old_plane_state; |
| struct vop *vop = to_vop(crtc); |
| struct drm_plane *plane; |
| int i; |
| |
| if (WARN_ON(!vop->is_enabled)) |
| return; |
| |
| spin_lock(&vop->reg_lock); |
| |
| vop_cfg_done(vop); |
| |
| spin_unlock(&vop->reg_lock); |
| |
| /* |
| * There is a (rather unlikely) possiblity that a vblank interrupt |
| * fired before we set the cfg_done bit. To avoid spuriously |
| * signalling flip completion we need to wait for it to finish. |
| */ |
| vop_wait_for_irq_handler(vop); |
| |
| spin_lock_irq(&crtc->dev->event_lock); |
| if (crtc->state->event) { |
| WARN_ON(drm_crtc_vblank_get(crtc) != 0); |
| WARN_ON(vop->event); |
| |
| vop->event = crtc->state->event; |
| crtc->state->event = NULL; |
| } |
| spin_unlock_irq(&crtc->dev->event_lock); |
| |
| for_each_plane_in_state(old_state, plane, old_plane_state, i) { |
| if (!old_plane_state->fb) |
| continue; |
| |
| if (old_plane_state->fb == plane->state->fb) |
| continue; |
| |
| drm_framebuffer_reference(old_plane_state->fb); |
| drm_flip_work_queue(&vop->fb_unref_work, old_plane_state->fb); |
| set_bit(VOP_PENDING_FB_UNREF, &vop->pending); |
| WARN_ON(drm_crtc_vblank_get(crtc) != 0); |
| } |
| } |
| |
| static void vop_crtc_atomic_begin(struct drm_crtc *crtc, |
| struct drm_crtc_state *old_crtc_state) |
| { |
| rockchip_drm_psr_flush(crtc); |
| } |
| |
| static const struct drm_crtc_helper_funcs vop_crtc_helper_funcs = { |
| .enable = vop_crtc_enable, |
| .disable = vop_crtc_disable, |
| .mode_fixup = vop_crtc_mode_fixup, |
| .atomic_flush = vop_crtc_atomic_flush, |
| .atomic_begin = vop_crtc_atomic_begin, |
| }; |
| |
| static void vop_crtc_destroy(struct drm_crtc *crtc) |
| { |
| drm_crtc_cleanup(crtc); |
| } |
| |
| static void vop_crtc_reset(struct drm_crtc *crtc) |
| { |
| if (crtc->state) |
| __drm_atomic_helper_crtc_destroy_state(crtc->state); |
| kfree(crtc->state); |
| |
| crtc->state = kzalloc(sizeof(struct rockchip_crtc_state), GFP_KERNEL); |
| if (crtc->state) |
| crtc->state->crtc = crtc; |
| } |
| |
| static struct drm_crtc_state *vop_crtc_duplicate_state(struct drm_crtc *crtc) |
| { |
| struct rockchip_crtc_state *rockchip_state; |
| |
| rockchip_state = kzalloc(sizeof(*rockchip_state), GFP_KERNEL); |
| if (!rockchip_state) |
| return NULL; |
| |
| __drm_atomic_helper_crtc_duplicate_state(crtc, &rockchip_state->base); |
| return &rockchip_state->base; |
| } |
| |
| static void vop_crtc_destroy_state(struct drm_crtc *crtc, |
| struct drm_crtc_state *state) |
| { |
| struct rockchip_crtc_state *s = to_rockchip_crtc_state(state); |
| |
| __drm_atomic_helper_crtc_destroy_state(&s->base); |
| kfree(s); |
| } |
| |
| #ifdef CONFIG_DRM_ANALOGIX_DP |
| static struct drm_connector *vop_get_edp_connector(struct vop *vop) |
| { |
| struct drm_crtc *crtc = &vop->crtc; |
| struct drm_connector *connector; |
| |
| mutex_lock(&crtc->dev->mode_config.mutex); |
| drm_for_each_connector(connector, crtc->dev) |
| if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) { |
| mutex_unlock(&crtc->dev->mode_config.mutex); |
| return connector; |
| } |
| mutex_unlock(&crtc->dev->mode_config.mutex); |
| |
| return NULL; |
| } |
| |
| static int vop_crtc_set_crc_source(struct drm_crtc *crtc, |
| const char *source_name, size_t *values_cnt) |
| { |
| struct vop *vop = to_vop(crtc); |
| struct drm_connector *connector; |
| int ret; |
| |
| connector = vop_get_edp_connector(vop); |
| if (!connector) |
| return -EINVAL; |
| |
| *values_cnt = 3; |
| |
| if (source_name && strcmp(source_name, "auto") == 0) |
| ret = analogix_dp_start_crc(connector); |
| else if (!source_name) |
| ret = analogix_dp_stop_crc(connector); |
| else |
| ret = -EINVAL; |
| |
| return ret; |
| } |
| #else |
| static int vop_crtc_set_crc_source(struct drm_crtc *crtc, |
| const char *source_name, size_t *values_cnt) |
| { |
| return -ENODEV; |
| } |
| #endif |
| |
| static const struct drm_crtc_funcs vop_crtc_funcs = { |
| .set_config = drm_atomic_helper_set_config, |
| .page_flip = drm_atomic_helper_page_flip, |
| .destroy = vop_crtc_destroy, |
| .reset = vop_crtc_reset, |
| .atomic_duplicate_state = vop_crtc_duplicate_state, |
| .atomic_destroy_state = vop_crtc_destroy_state, |
| .enable_vblank = vop_crtc_enable_vblank, |
| .disable_vblank = vop_crtc_disable_vblank, |
| .set_crc_source = vop_crtc_set_crc_source, |
| }; |
| |
| static void vop_fb_unref_worker(struct drm_flip_work *work, void *val) |
| { |
| struct vop *vop = container_of(work, struct vop, fb_unref_work); |
| struct drm_framebuffer *fb = val; |
| |
| drm_crtc_vblank_put(&vop->crtc); |
| drm_framebuffer_unreference(fb); |
| } |
| |
| static void vop_handle_vblank(struct vop *vop) |
| { |
| struct drm_device *drm = vop->drm_dev; |
| struct drm_crtc *crtc = &vop->crtc; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&drm->event_lock, flags); |
| if (vop->event) { |
| drm_crtc_send_vblank_event(crtc, vop->event); |
| drm_crtc_vblank_put(crtc); |
| vop->event = NULL; |
| } |
| spin_unlock_irqrestore(&drm->event_lock, flags); |
| |
| if (test_and_clear_bit(VOP_PENDING_FB_UNREF, &vop->pending)) |
| drm_flip_work_commit(&vop->fb_unref_work, system_unbound_wq); |
| } |
| |
| static irqreturn_t vop_isr(int irq, void *data) |
| { |
| struct vop *vop = data; |
| struct drm_crtc *crtc = &vop->crtc; |
| uint32_t active_irqs; |
| unsigned long flags; |
| int ret = IRQ_NONE; |
| |
| /* |
| * interrupt register has interrupt status, enable and clear bits, we |
| * must hold irq_lock to avoid a race with enable/disable_vblank(). |
| */ |
| spin_lock_irqsave(&vop->irq_lock, flags); |
| |
| active_irqs = VOP_INTR_GET_TYPE(vop, status, INTR_MASK); |
| /* Clear all active interrupt sources */ |
| if (active_irqs) |
| VOP_INTR_SET_TYPE(vop, clear, active_irqs, 1); |
| |
| spin_unlock_irqrestore(&vop->irq_lock, flags); |
| |
| /* This is expected for vop iommu irqs, since the irq is shared */ |
| if (!active_irqs) |
| return IRQ_NONE; |
| |
| if (active_irqs & DSP_HOLD_VALID_INTR) { |
| complete(&vop->dsp_hold_completion); |
| active_irqs &= ~DSP_HOLD_VALID_INTR; |
| ret = IRQ_HANDLED; |
| } |
| |
| if (active_irqs & LINE_FLAG_INTR) { |
| complete(&vop->line_flag_completion); |
| active_irqs &= ~LINE_FLAG_INTR; |
| ret = IRQ_HANDLED; |
| } |
| |
| if (active_irqs & FS_INTR) { |
| drm_crtc_handle_vblank(crtc); |
| vop_handle_vblank(vop); |
| active_irqs &= ~FS_INTR; |
| ret = IRQ_HANDLED; |
| } |
| |
| /* Unhandled irqs are spurious. */ |
| if (active_irqs) |
| DRM_DEV_ERROR(vop->dev, "Unknown VOP IRQs: %#02x\n", |
| active_irqs); |
| |
| return ret; |
| } |
| |
| static int vop_create_crtc(struct vop *vop) |
| { |
| const struct vop_data *vop_data = vop->data; |
| struct device *dev = vop->dev; |
| struct drm_device *drm_dev = vop->drm_dev; |
| struct drm_plane *primary = NULL, *cursor = NULL, *plane, *tmp; |
| struct drm_crtc *crtc = &vop->crtc; |
| struct device_node *port; |
| int ret; |
| int i; |
| |
| /* |
| * Create drm_plane for primary and cursor planes first, since we need |
| * to pass them to drm_crtc_init_with_planes, which sets the |
| * "possible_crtcs" to the newly initialized crtc. |
| */ |
| for (i = 0; i < vop_data->win_size; i++) { |
| struct vop_win *vop_win = &vop->win[i]; |
| const struct vop_win_data *win_data = vop_win->data; |
| |
| if (win_data->type != DRM_PLANE_TYPE_PRIMARY && |
| win_data->type != DRM_PLANE_TYPE_CURSOR) |
| continue; |
| |
| ret = drm_universal_plane_init(vop->drm_dev, &vop_win->base, |
| 0, &vop_plane_funcs, |
| win_data->phy->data_formats, |
| win_data->phy->nformats, |
| win_data->type, NULL); |
| if (ret) { |
| DRM_DEV_ERROR(vop->dev, "failed to init plane %d\n", |
| ret); |
| goto err_cleanup_planes; |
| } |
| |
| plane = &vop_win->base; |
| drm_plane_helper_add(plane, &plane_helper_funcs); |
| if (plane->type == DRM_PLANE_TYPE_PRIMARY) |
| primary = plane; |
| else if (plane->type == DRM_PLANE_TYPE_CURSOR) |
| cursor = plane; |
| } |
| |
| ret = drm_crtc_init_with_planes(drm_dev, crtc, primary, cursor, |
| &vop_crtc_funcs, NULL); |
| if (ret) |
| goto err_cleanup_planes; |
| |
| drm_crtc_helper_add(crtc, &vop_crtc_helper_funcs); |
| |
| /* |
| * Create drm_planes for overlay windows with possible_crtcs restricted |
| * to the newly created crtc. |
| */ |
| for (i = 0; i < vop_data->win_size; i++) { |
| struct vop_win *vop_win = &vop->win[i]; |
| const struct vop_win_data *win_data = vop_win->data; |
| unsigned long possible_crtcs = 1 << drm_crtc_index(crtc); |
| |
| if (win_data->type != DRM_PLANE_TYPE_OVERLAY) |
| continue; |
| |
| ret = drm_universal_plane_init(vop->drm_dev, &vop_win->base, |
| possible_crtcs, |
| &vop_plane_funcs, |
| win_data->phy->data_formats, |
| win_data->phy->nformats, |
| win_data->type, NULL); |
| if (ret) { |
| DRM_DEV_ERROR(vop->dev, "failed to init overlay %d\n", |
| ret); |
| goto err_cleanup_crtc; |
| } |
| drm_plane_helper_add(&vop_win->base, &plane_helper_funcs); |
| } |
| |
| port = of_get_child_by_name(dev->of_node, "port"); |
| if (!port) { |
| DRM_DEV_ERROR(vop->dev, "no port node found in %s\n", |
| dev->of_node->full_name); |
| ret = -ENOENT; |
| goto err_cleanup_crtc; |
| } |
| |
| drm_flip_work_init(&vop->fb_unref_work, "fb_unref", |
| vop_fb_unref_worker); |
| |
| init_completion(&vop->dsp_hold_completion); |
| init_completion(&vop->line_flag_completion); |
| crtc->port = port; |
| |
| return 0; |
| |
| err_cleanup_crtc: |
| drm_crtc_cleanup(crtc); |
| err_cleanup_planes: |
| list_for_each_entry_safe(plane, tmp, &drm_dev->mode_config.plane_list, |
| head) |
| drm_plane_cleanup(plane); |
| return ret; |
| } |
| |
| static void vop_destroy_crtc(struct vop *vop) |
| { |
| struct drm_crtc *crtc = &vop->crtc; |
| struct drm_device *drm_dev = vop->drm_dev; |
| struct drm_plane *plane, *tmp; |
| |
| of_node_put(crtc->port); |
| |
| /* |
| * We need to cleanup the planes now. Why? |
| * |
| * The planes are "&vop->win[i].base". That means the memory is |
| * all part of the big "struct vop" chunk of memory. That memory |
| * was devm allocated and associated with this component. We need to |
| * free it ourselves before vop_unbind() finishes. |
| */ |
| list_for_each_entry_safe(plane, tmp, &drm_dev->mode_config.plane_list, |
| head) |
| vop_plane_destroy(plane); |
| |
| /* |
| * Destroy CRTC after vop_plane_destroy() since vop_disable_plane() |
| * references the CRTC. |
| */ |
| drm_crtc_cleanup(crtc); |
| drm_flip_work_cleanup(&vop->fb_unref_work); |
| } |
| |
| static int vop_initial(struct vop *vop) |
| { |
| const struct vop_data *vop_data = vop->data; |
| const struct vop_reg_data *init_table = vop_data->init_table; |
| struct reset_control *ahb_rst; |
| int i, ret; |
| |
| vop->hclk = devm_clk_get(vop->dev, "hclk_vop"); |
| if (IS_ERR(vop->hclk)) { |
| dev_err(vop->dev, "failed to get hclk source\n"); |
| return PTR_ERR(vop->hclk); |
| } |
| vop->aclk = devm_clk_get(vop->dev, "aclk_vop"); |
| if (IS_ERR(vop->aclk)) { |
| dev_err(vop->dev, "failed to get aclk source\n"); |
| return PTR_ERR(vop->aclk); |
| } |
| vop->dclk = devm_clk_get(vop->dev, "dclk_vop"); |
| if (IS_ERR(vop->dclk)) { |
| dev_err(vop->dev, "failed to get dclk source\n"); |
| return PTR_ERR(vop->dclk); |
| } |
| |
| ret = pm_runtime_get_sync(vop->dev); |
| if (ret < 0) { |
| dev_err(vop->dev, "failed to get pm runtime: %d\n", ret); |
| return ret; |
| } |
| |
| ret = clk_prepare(vop->dclk); |
| if (ret < 0) { |
| dev_err(vop->dev, "failed to prepare dclk\n"); |
| goto err_put_pm_runtime; |
| } |
| |
| /* Enable both the hclk and aclk to setup the vop */ |
| ret = clk_prepare_enable(vop->hclk); |
| if (ret < 0) { |
| dev_err(vop->dev, "failed to prepare/enable hclk\n"); |
| goto err_unprepare_dclk; |
| } |
| |
| ret = clk_prepare_enable(vop->aclk); |
| if (ret < 0) { |
| dev_err(vop->dev, "failed to prepare/enable aclk\n"); |
| goto err_disable_hclk; |
| } |
| |
| /* |
| * do hclk_reset, reset all vop registers. |
| */ |
| ahb_rst = devm_reset_control_get(vop->dev, "ahb"); |
| if (IS_ERR(ahb_rst)) { |
| dev_err(vop->dev, "failed to get ahb reset\n"); |
| ret = PTR_ERR(ahb_rst); |
| goto err_disable_aclk; |
| } |
| reset_control_assert(ahb_rst); |
| usleep_range(10, 20); |
| reset_control_deassert(ahb_rst); |
| |
| memcpy(vop->regsbak, vop->regs, vop->len); |
| |
| for (i = 0; i < vop_data->table_size; i++) |
| vop_writel(vop, init_table[i].offset, init_table[i].value); |
| |
| for (i = 0; i < vop_data->win_size; i++) { |
| const struct vop_win_data *win = &vop_data->win[i]; |
| |
| VOP_WIN_SET(vop, win, enable, 0); |
| } |
| |
| vop_cfg_done(vop); |
| |
| /* |
| * do dclk_reset, let all config take affect. |
| */ |
| vop->dclk_rst = devm_reset_control_get(vop->dev, "dclk"); |
| if (IS_ERR(vop->dclk_rst)) { |
| dev_err(vop->dev, "failed to get dclk reset\n"); |
| ret = PTR_ERR(vop->dclk_rst); |
| goto err_disable_aclk; |
| } |
| reset_control_assert(vop->dclk_rst); |
| usleep_range(10, 20); |
| reset_control_deassert(vop->dclk_rst); |
| |
| clk_disable(vop->hclk); |
| clk_disable(vop->aclk); |
| |
| vop->is_enabled = false; |
| |
| pm_runtime_put_sync(vop->dev); |
| |
| return 0; |
| |
| err_disable_aclk: |
| clk_disable_unprepare(vop->aclk); |
| err_disable_hclk: |
| clk_disable_unprepare(vop->hclk); |
| err_unprepare_dclk: |
| clk_unprepare(vop->dclk); |
| err_put_pm_runtime: |
| pm_runtime_put_sync(vop->dev); |
| return ret; |
| } |
| |
| /* |
| * Initialize the vop->win array elements. |
| */ |
| static void vop_win_init(struct vop *vop) |
| { |
| const struct vop_data *vop_data = vop->data; |
| unsigned int i; |
| |
| for (i = 0; i < vop_data->win_size; i++) { |
| struct vop_win *vop_win = &vop->win[i]; |
| const struct vop_win_data *win_data = &vop_data->win[i]; |
| |
| vop_win->data = win_data; |
| vop_win->vop = vop; |
| } |
| } |
| |
| /** |
| * rockchip_drm_wait_vact_end |
| * @crtc: CRTC to enable line flag |
| * @mstimeout: millisecond for timeout |
| * |
| * Wait for vact_end line flag irq or timeout. |
| * |
| * Returns: |
| * Zero on success, negative errno on failure. |
| */ |
| int rockchip_drm_wait_vact_end(struct drm_crtc *crtc, unsigned int mstimeout) |
| { |
| struct vop *vop = to_vop(crtc); |
| unsigned long jiffies_left; |
| |
| if (!crtc || !vop->is_enabled) |
| return -ENODEV; |
| |
| if (mstimeout <= 0) |
| return -EINVAL; |
| |
| if (vop_line_flag_irq_is_enabled(vop)) |
| return -EBUSY; |
| |
| reinit_completion(&vop->line_flag_completion); |
| vop_line_flag_irq_enable(vop); |
| |
| jiffies_left = wait_for_completion_timeout(&vop->line_flag_completion, |
| msecs_to_jiffies(mstimeout)); |
| vop_line_flag_irq_disable(vop); |
| |
| if (jiffies_left == 0) { |
| dev_err(vop->dev, "Timeout waiting for IRQ\n"); |
| return -ETIMEDOUT; |
| } |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(rockchip_drm_wait_vact_end); |
| |
| static int vop_bind(struct device *dev, struct device *master, void *data) |
| { |
| struct platform_device *pdev = to_platform_device(dev); |
| const struct vop_data *vop_data; |
| struct drm_device *drm_dev = data; |
| struct vop *vop; |
| struct resource *res; |
| size_t alloc_size; |
| int ret, irq; |
| |
| vop_data = of_device_get_match_data(dev); |
| if (!vop_data) |
| return -ENODEV; |
| |
| /* Allocate vop struct and its vop_win array */ |
| alloc_size = sizeof(*vop) + sizeof(*vop->win) * vop_data->win_size; |
| vop = devm_kzalloc(dev, alloc_size, GFP_KERNEL); |
| if (!vop) |
| return -ENOMEM; |
| |
| vop->dev = dev; |
| vop->data = vop_data; |
| vop->drm_dev = drm_dev; |
| dev_set_drvdata(dev, vop); |
| |
| vop_win_init(vop); |
| |
| res = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
| vop->len = resource_size(res); |
| vop->regs = devm_ioremap_resource(dev, res); |
| if (IS_ERR(vop->regs)) |
| return PTR_ERR(vop->regs); |
| |
| vop->regsbak = devm_kzalloc(dev, vop->len, GFP_KERNEL); |
| if (!vop->regsbak) |
| return -ENOMEM; |
| |
| irq = platform_get_irq(pdev, 0); |
| if (irq < 0) { |
| dev_err(dev, "cannot find irq for vop\n"); |
| return irq; |
| } |
| vop->irq = (unsigned int)irq; |
| |
| spin_lock_init(&vop->reg_lock); |
| spin_lock_init(&vop->irq_lock); |
| |
| mutex_init(&vop->vsync_mutex); |
| |
| ret = devm_request_irq(dev, vop->irq, vop_isr, |
| IRQF_SHARED, dev_name(dev), vop); |
| if (ret) |
| return ret; |
| |
| /* IRQ is initially disabled; it gets enabled in power_on */ |
| disable_irq(vop->irq); |
| |
| ret = vop_create_crtc(vop); |
| if (ret) |
| goto err_enable_irq; |
| |
| pm_runtime_enable(&pdev->dev); |
| |
| ret = vop_initial(vop); |
| if (ret < 0) { |
| dev_err(&pdev->dev, "cannot initial vop dev - err %d\n", ret); |
| goto err_disable_pm_runtime; |
| } |
| |
| return 0; |
| |
| err_disable_pm_runtime: |
| pm_runtime_disable(&pdev->dev); |
| vop_destroy_crtc(vop); |
| err_enable_irq: |
| enable_irq(vop->irq); /* To balance out the disable_irq above */ |
| return ret; |
| } |
| |
| static void vop_unbind(struct device *dev, struct device *master, void *data) |
| { |
| struct vop *vop = dev_get_drvdata(dev); |
| |
| pm_runtime_disable(dev); |
| vop_destroy_crtc(vop); |
| |
| clk_unprepare(vop->aclk); |
| clk_unprepare(vop->hclk); |
| clk_unprepare(vop->dclk); |
| } |
| |
| const struct component_ops vop_component_ops = { |
| .bind = vop_bind, |
| .unbind = vop_unbind, |
| }; |
| EXPORT_SYMBOL_GPL(vop_component_ops); |