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![Dave Airlie](/assets/img/avatar_default.png)
misc rockchip fixes. * 'drm-rockchip-2015-07-13' of https://github.com/markyzq/kernel-drm-rockchip: drm/rockchip: vop: remove hardware cursor window drm/rockchip: vop: switch cursor plane to window 3 drm/rockchip: Drop owner assignment from platform_driver drm/rockchip: use drm_gem_mmap helpers drm/rockchip: only call drm_fb_helper_hotplug_event if fb_helper present drm/rockchip: Add BGR formats to VOP
1546 lines
37 KiB
C
1546 lines
37 KiB
C
/*
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* Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
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* Author:Mark Yao <mark.yao@rock-chips.com>
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <drm/drm.h>
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#include <drm/drmP.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_crtc_helper.h>
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#include <drm/drm_plane_helper.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/clk.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/pm_runtime.h>
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#include <linux/component.h>
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#include <linux/reset.h>
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#include <linux/delay.h>
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#include "rockchip_drm_drv.h"
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#include "rockchip_drm_gem.h"
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#include "rockchip_drm_fb.h"
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#include "rockchip_drm_vop.h"
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#define VOP_REG(off, _mask, s) \
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{.offset = off, \
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.mask = _mask, \
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.shift = s,}
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#define __REG_SET_RELAXED(x, off, mask, shift, v) \
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vop_mask_write_relaxed(x, off, (mask) << shift, (v) << shift)
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#define __REG_SET_NORMAL(x, off, mask, shift, v) \
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vop_mask_write(x, off, (mask) << shift, (v) << shift)
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#define REG_SET(x, base, reg, v, mode) \
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__REG_SET_##mode(x, base + reg.offset, reg.mask, reg.shift, v)
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#define VOP_WIN_SET(x, win, name, v) \
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REG_SET(x, win->base, win->phy->name, v, RELAXED)
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#define VOP_CTRL_SET(x, name, v) \
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REG_SET(x, 0, (x)->data->ctrl->name, v, NORMAL)
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#define VOP_WIN_GET(x, win, name) \
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vop_read_reg(x, win->base, &win->phy->name)
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#define VOP_WIN_GET_YRGBADDR(vop, win) \
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vop_readl(vop, win->base + win->phy->yrgb_mst.offset)
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#define to_vop(x) container_of(x, struct vop, crtc)
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#define to_vop_win(x) container_of(x, struct vop_win, base)
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struct vop_win_state {
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struct list_head head;
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struct drm_framebuffer *fb;
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dma_addr_t yrgb_mst;
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struct drm_pending_vblank_event *event;
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};
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struct vop_win {
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struct drm_plane base;
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const struct vop_win_data *data;
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struct vop *vop;
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struct list_head pending;
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struct vop_win_state *active;
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};
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struct vop {
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struct drm_crtc crtc;
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struct device *dev;
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struct drm_device *drm_dev;
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bool is_enabled;
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int connector_type;
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int connector_out_mode;
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/* mutex vsync_ work */
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struct mutex vsync_mutex;
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bool vsync_work_pending;
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struct completion dsp_hold_completion;
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const struct vop_data *data;
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uint32_t *regsbak;
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void __iomem *regs;
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/* physical map length of vop register */
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uint32_t len;
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/* one time only one process allowed to config the register */
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spinlock_t reg_lock;
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/* lock vop irq reg */
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spinlock_t irq_lock;
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unsigned int irq;
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/* vop AHP clk */
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struct clk *hclk;
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/* vop dclk */
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struct clk *dclk;
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/* vop share memory frequency */
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struct clk *aclk;
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/* vop dclk reset */
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struct reset_control *dclk_rst;
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int pipe;
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struct vop_win win[];
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};
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enum vop_data_format {
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VOP_FMT_ARGB8888 = 0,
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VOP_FMT_RGB888,
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VOP_FMT_RGB565,
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VOP_FMT_YUV420SP = 4,
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VOP_FMT_YUV422SP,
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VOP_FMT_YUV444SP,
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};
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struct vop_reg_data {
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uint32_t offset;
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uint32_t value;
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};
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struct vop_reg {
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uint32_t offset;
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uint32_t shift;
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uint32_t mask;
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};
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struct vop_ctrl {
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struct vop_reg standby;
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struct vop_reg data_blank;
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struct vop_reg gate_en;
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struct vop_reg mmu_en;
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struct vop_reg rgb_en;
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struct vop_reg edp_en;
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struct vop_reg hdmi_en;
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struct vop_reg mipi_en;
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struct vop_reg out_mode;
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struct vop_reg dither_down;
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struct vop_reg dither_up;
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struct vop_reg pin_pol;
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struct vop_reg htotal_pw;
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struct vop_reg hact_st_end;
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struct vop_reg vtotal_pw;
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struct vop_reg vact_st_end;
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struct vop_reg hpost_st_end;
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struct vop_reg vpost_st_end;
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};
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struct vop_win_phy {
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const uint32_t *data_formats;
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uint32_t nformats;
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struct vop_reg enable;
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struct vop_reg format;
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struct vop_reg rb_swap;
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struct vop_reg act_info;
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struct vop_reg dsp_info;
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struct vop_reg dsp_st;
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struct vop_reg yrgb_mst;
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struct vop_reg uv_mst;
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struct vop_reg yrgb_vir;
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struct vop_reg uv_vir;
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struct vop_reg dst_alpha_ctl;
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struct vop_reg src_alpha_ctl;
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};
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struct vop_win_data {
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uint32_t base;
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const struct vop_win_phy *phy;
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enum drm_plane_type type;
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};
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struct vop_data {
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const struct vop_reg_data *init_table;
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unsigned int table_size;
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const struct vop_ctrl *ctrl;
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const struct vop_win_data *win;
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unsigned int win_size;
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};
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static const uint32_t formats_01[] = {
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DRM_FORMAT_XRGB8888,
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DRM_FORMAT_ARGB8888,
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DRM_FORMAT_XBGR8888,
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DRM_FORMAT_ABGR8888,
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DRM_FORMAT_RGB888,
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DRM_FORMAT_BGR888,
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DRM_FORMAT_RGB565,
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DRM_FORMAT_BGR565,
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DRM_FORMAT_NV12,
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DRM_FORMAT_NV16,
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DRM_FORMAT_NV24,
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};
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static const uint32_t formats_234[] = {
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DRM_FORMAT_XRGB8888,
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DRM_FORMAT_ARGB8888,
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DRM_FORMAT_XBGR8888,
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DRM_FORMAT_ABGR8888,
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DRM_FORMAT_RGB888,
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DRM_FORMAT_BGR888,
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DRM_FORMAT_RGB565,
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DRM_FORMAT_BGR565,
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};
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static const struct vop_win_phy win01_data = {
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.data_formats = formats_01,
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.nformats = ARRAY_SIZE(formats_01),
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.enable = VOP_REG(WIN0_CTRL0, 0x1, 0),
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.format = VOP_REG(WIN0_CTRL0, 0x7, 1),
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.rb_swap = VOP_REG(WIN0_CTRL0, 0x1, 12),
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.act_info = VOP_REG(WIN0_ACT_INFO, 0x1fff1fff, 0),
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.dsp_info = VOP_REG(WIN0_DSP_INFO, 0x0fff0fff, 0),
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.dsp_st = VOP_REG(WIN0_DSP_ST, 0x1fff1fff, 0),
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.yrgb_mst = VOP_REG(WIN0_YRGB_MST, 0xffffffff, 0),
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.uv_mst = VOP_REG(WIN0_CBR_MST, 0xffffffff, 0),
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.yrgb_vir = VOP_REG(WIN0_VIR, 0x3fff, 0),
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.uv_vir = VOP_REG(WIN0_VIR, 0x3fff, 16),
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.src_alpha_ctl = VOP_REG(WIN0_SRC_ALPHA_CTRL, 0xff, 0),
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.dst_alpha_ctl = VOP_REG(WIN0_DST_ALPHA_CTRL, 0xff, 0),
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};
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static const struct vop_win_phy win23_data = {
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.data_formats = formats_234,
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.nformats = ARRAY_SIZE(formats_234),
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.enable = VOP_REG(WIN2_CTRL0, 0x1, 0),
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.format = VOP_REG(WIN2_CTRL0, 0x7, 1),
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.rb_swap = VOP_REG(WIN2_CTRL0, 0x1, 12),
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.dsp_info = VOP_REG(WIN2_DSP_INFO0, 0x0fff0fff, 0),
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.dsp_st = VOP_REG(WIN2_DSP_ST0, 0x1fff1fff, 0),
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.yrgb_mst = VOP_REG(WIN2_MST0, 0xffffffff, 0),
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.yrgb_vir = VOP_REG(WIN2_VIR0_1, 0x1fff, 0),
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.src_alpha_ctl = VOP_REG(WIN2_SRC_ALPHA_CTRL, 0xff, 0),
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.dst_alpha_ctl = VOP_REG(WIN2_DST_ALPHA_CTRL, 0xff, 0),
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};
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static const struct vop_ctrl ctrl_data = {
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.standby = VOP_REG(SYS_CTRL, 0x1, 22),
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.gate_en = VOP_REG(SYS_CTRL, 0x1, 23),
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.mmu_en = VOP_REG(SYS_CTRL, 0x1, 20),
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.rgb_en = VOP_REG(SYS_CTRL, 0x1, 12),
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.hdmi_en = VOP_REG(SYS_CTRL, 0x1, 13),
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.edp_en = VOP_REG(SYS_CTRL, 0x1, 14),
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.mipi_en = VOP_REG(SYS_CTRL, 0x1, 15),
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.dither_down = VOP_REG(DSP_CTRL1, 0xf, 1),
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.dither_up = VOP_REG(DSP_CTRL1, 0x1, 6),
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.data_blank = VOP_REG(DSP_CTRL0, 0x1, 19),
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.out_mode = VOP_REG(DSP_CTRL0, 0xf, 0),
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.pin_pol = VOP_REG(DSP_CTRL0, 0xf, 4),
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.htotal_pw = VOP_REG(DSP_HTOTAL_HS_END, 0x1fff1fff, 0),
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.hact_st_end = VOP_REG(DSP_HACT_ST_END, 0x1fff1fff, 0),
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.vtotal_pw = VOP_REG(DSP_VTOTAL_VS_END, 0x1fff1fff, 0),
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.vact_st_end = VOP_REG(DSP_VACT_ST_END, 0x1fff1fff, 0),
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.hpost_st_end = VOP_REG(POST_DSP_HACT_INFO, 0x1fff1fff, 0),
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.vpost_st_end = VOP_REG(POST_DSP_VACT_INFO, 0x1fff1fff, 0),
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};
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static const struct vop_reg_data vop_init_reg_table[] = {
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{SYS_CTRL, 0x00c00000},
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{DSP_CTRL0, 0x00000000},
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{WIN0_CTRL0, 0x00000080},
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{WIN1_CTRL0, 0x00000080},
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};
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/*
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* Note: rk3288 has a dedicated 'cursor' window, however, that window requires
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* special support to get alpha blending working. For now, just use overlay
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* window 3 for the drm cursor.
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*
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*/
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static const struct vop_win_data rk3288_vop_win_data[] = {
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{ .base = 0x00, .phy = &win01_data, .type = DRM_PLANE_TYPE_PRIMARY },
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{ .base = 0x40, .phy = &win01_data, .type = DRM_PLANE_TYPE_OVERLAY },
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{ .base = 0x00, .phy = &win23_data, .type = DRM_PLANE_TYPE_OVERLAY },
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{ .base = 0x50, .phy = &win23_data, .type = DRM_PLANE_TYPE_CURSOR },
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};
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static const struct vop_data rk3288_vop = {
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.init_table = vop_init_reg_table,
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.table_size = ARRAY_SIZE(vop_init_reg_table),
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.ctrl = &ctrl_data,
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.win = rk3288_vop_win_data,
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.win_size = ARRAY_SIZE(rk3288_vop_win_data),
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};
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static const struct of_device_id vop_driver_dt_match[] = {
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{ .compatible = "rockchip,rk3288-vop",
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.data = &rk3288_vop },
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{},
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};
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static inline void vop_writel(struct vop *vop, uint32_t offset, uint32_t v)
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{
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writel(v, vop->regs + offset);
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vop->regsbak[offset >> 2] = v;
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}
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static inline uint32_t vop_readl(struct vop *vop, uint32_t offset)
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{
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return readl(vop->regs + offset);
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}
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static inline uint32_t vop_read_reg(struct vop *vop, uint32_t base,
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const struct vop_reg *reg)
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{
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return (vop_readl(vop, base + reg->offset) >> reg->shift) & reg->mask;
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}
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static inline void vop_cfg_done(struct vop *vop)
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{
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writel(0x01, vop->regs + REG_CFG_DONE);
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}
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static inline void vop_mask_write(struct vop *vop, uint32_t offset,
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uint32_t mask, uint32_t v)
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{
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if (mask) {
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uint32_t cached_val = vop->regsbak[offset >> 2];
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cached_val = (cached_val & ~mask) | v;
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writel(cached_val, vop->regs + offset);
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vop->regsbak[offset >> 2] = cached_val;
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}
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}
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static inline void vop_mask_write_relaxed(struct vop *vop, uint32_t offset,
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uint32_t mask, uint32_t v)
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{
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if (mask) {
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uint32_t cached_val = vop->regsbak[offset >> 2];
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cached_val = (cached_val & ~mask) | v;
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writel_relaxed(cached_val, vop->regs + offset);
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vop->regsbak[offset >> 2] = cached_val;
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}
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}
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static bool has_rb_swapped(uint32_t format)
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{
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switch (format) {
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case DRM_FORMAT_XBGR8888:
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case DRM_FORMAT_ABGR8888:
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case DRM_FORMAT_BGR888:
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case DRM_FORMAT_BGR565:
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return true;
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default:
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return false;
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}
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}
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static enum vop_data_format vop_convert_format(uint32_t format)
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{
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switch (format) {
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case DRM_FORMAT_XRGB8888:
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case DRM_FORMAT_ARGB8888:
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case DRM_FORMAT_XBGR8888:
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case DRM_FORMAT_ABGR8888:
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return VOP_FMT_ARGB8888;
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case DRM_FORMAT_RGB888:
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case DRM_FORMAT_BGR888:
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return VOP_FMT_RGB888;
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case DRM_FORMAT_RGB565:
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case DRM_FORMAT_BGR565:
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return VOP_FMT_RGB565;
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case DRM_FORMAT_NV12:
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return VOP_FMT_YUV420SP;
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case DRM_FORMAT_NV16:
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return VOP_FMT_YUV422SP;
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case DRM_FORMAT_NV24:
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return VOP_FMT_YUV444SP;
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default:
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DRM_ERROR("unsupport format[%08x]\n", format);
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return -EINVAL;
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}
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}
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static bool is_alpha_support(uint32_t format)
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{
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switch (format) {
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case DRM_FORMAT_ARGB8888:
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case DRM_FORMAT_ABGR8888:
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return true;
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default:
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return false;
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}
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}
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static void vop_dsp_hold_valid_irq_enable(struct vop *vop)
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{
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unsigned long flags;
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if (WARN_ON(!vop->is_enabled))
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return;
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spin_lock_irqsave(&vop->irq_lock, flags);
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vop_mask_write(vop, INTR_CTRL0, DSP_HOLD_VALID_INTR_MASK,
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DSP_HOLD_VALID_INTR_EN(1));
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spin_unlock_irqrestore(&vop->irq_lock, flags);
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}
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static void vop_dsp_hold_valid_irq_disable(struct vop *vop)
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{
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unsigned long flags;
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if (WARN_ON(!vop->is_enabled))
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return;
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spin_lock_irqsave(&vop->irq_lock, flags);
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vop_mask_write(vop, INTR_CTRL0, DSP_HOLD_VALID_INTR_MASK,
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DSP_HOLD_VALID_INTR_EN(0));
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spin_unlock_irqrestore(&vop->irq_lock, flags);
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}
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static void vop_enable(struct drm_crtc *crtc)
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{
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struct vop *vop = to_vop(crtc);
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int ret;
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if (vop->is_enabled)
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return;
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ret = pm_runtime_get_sync(vop->dev);
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if (ret < 0) {
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dev_err(vop->dev, "failed to get pm runtime: %d\n", ret);
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return;
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}
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ret = clk_enable(vop->hclk);
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if (ret < 0) {
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dev_err(vop->dev, "failed to enable hclk - %d\n", ret);
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return;
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}
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ret = clk_enable(vop->dclk);
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if (ret < 0) {
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dev_err(vop->dev, "failed to enable dclk - %d\n", ret);
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goto err_disable_hclk;
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}
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ret = clk_enable(vop->aclk);
|
|
if (ret < 0) {
|
|
dev_err(vop->dev, "failed to enable aclk - %d\n", ret);
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* 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_vblank_on(vop->drm_dev, vop->pipe);
|
|
|
|
return;
|
|
|
|
err_disable_aclk:
|
|
clk_disable(vop->aclk);
|
|
err_disable_dclk:
|
|
clk_disable(vop->dclk);
|
|
err_disable_hclk:
|
|
clk_disable(vop->hclk);
|
|
}
|
|
|
|
static void vop_disable(struct drm_crtc *crtc)
|
|
{
|
|
struct vop *vop = to_vop(crtc);
|
|
|
|
if (!vop->is_enabled)
|
|
return;
|
|
|
|
drm_vblank_off(crtc->dev, vop->pipe);
|
|
|
|
/*
|
|
* 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);
|
|
}
|
|
|
|
/*
|
|
* Caller must hold vsync_mutex.
|
|
*/
|
|
static struct drm_framebuffer *vop_win_last_pending_fb(struct vop_win *vop_win)
|
|
{
|
|
struct vop_win_state *last;
|
|
struct vop_win_state *active = vop_win->active;
|
|
|
|
if (list_empty(&vop_win->pending))
|
|
return active ? active->fb : NULL;
|
|
|
|
last = list_last_entry(&vop_win->pending, struct vop_win_state, head);
|
|
return last ? last->fb : NULL;
|
|
}
|
|
|
|
/*
|
|
* Caller must hold vsync_mutex.
|
|
*/
|
|
static int vop_win_queue_fb(struct vop_win *vop_win,
|
|
struct drm_framebuffer *fb, dma_addr_t yrgb_mst,
|
|
struct drm_pending_vblank_event *event)
|
|
{
|
|
struct vop_win_state *state;
|
|
|
|
state = kzalloc(sizeof(*state), GFP_KERNEL);
|
|
if (!state)
|
|
return -ENOMEM;
|
|
|
|
state->fb = fb;
|
|
state->yrgb_mst = yrgb_mst;
|
|
state->event = event;
|
|
|
|
list_add_tail(&state->head, &vop_win->pending);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vop_update_plane_event(struct drm_plane *plane,
|
|
struct drm_crtc *crtc,
|
|
struct drm_framebuffer *fb, int crtc_x,
|
|
int crtc_y, unsigned int crtc_w,
|
|
unsigned int crtc_h, uint32_t src_x,
|
|
uint32_t src_y, uint32_t src_w,
|
|
uint32_t src_h,
|
|
struct drm_pending_vblank_event *event)
|
|
{
|
|
struct vop_win *vop_win = to_vop_win(plane);
|
|
const struct vop_win_data *win = vop_win->data;
|
|
struct vop *vop = to_vop(crtc);
|
|
struct drm_gem_object *obj;
|
|
struct rockchip_gem_object *rk_obj;
|
|
unsigned long offset;
|
|
unsigned int actual_w;
|
|
unsigned int actual_h;
|
|
unsigned int dsp_stx;
|
|
unsigned int dsp_sty;
|
|
unsigned int y_vir_stride;
|
|
dma_addr_t yrgb_mst;
|
|
enum vop_data_format format;
|
|
uint32_t val;
|
|
bool is_alpha;
|
|
bool rb_swap;
|
|
bool visible;
|
|
int ret;
|
|
struct drm_rect dest = {
|
|
.x1 = crtc_x,
|
|
.y1 = crtc_y,
|
|
.x2 = crtc_x + crtc_w,
|
|
.y2 = crtc_y + crtc_h,
|
|
};
|
|
struct drm_rect src = {
|
|
/* 16.16 fixed point */
|
|
.x1 = src_x,
|
|
.y1 = src_y,
|
|
.x2 = src_x + src_w,
|
|
.y2 = src_y + src_h,
|
|
};
|
|
const struct drm_rect clip = {
|
|
.x2 = crtc->mode.hdisplay,
|
|
.y2 = crtc->mode.vdisplay,
|
|
};
|
|
bool can_position = plane->type != DRM_PLANE_TYPE_PRIMARY;
|
|
|
|
ret = drm_plane_helper_check_update(plane, crtc, fb,
|
|
&src, &dest, &clip,
|
|
DRM_PLANE_HELPER_NO_SCALING,
|
|
DRM_PLANE_HELPER_NO_SCALING,
|
|
can_position, false, &visible);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (!visible)
|
|
return 0;
|
|
|
|
is_alpha = is_alpha_support(fb->pixel_format);
|
|
rb_swap = has_rb_swapped(fb->pixel_format);
|
|
format = vop_convert_format(fb->pixel_format);
|
|
if (format < 0)
|
|
return format;
|
|
|
|
obj = rockchip_fb_get_gem_obj(fb, 0);
|
|
if (!obj) {
|
|
DRM_ERROR("fail to get rockchip gem object from framebuffer\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
rk_obj = to_rockchip_obj(obj);
|
|
|
|
actual_w = (src.x2 - src.x1) >> 16;
|
|
actual_h = (src.y2 - src.y1) >> 16;
|
|
crtc_x = max(0, crtc_x);
|
|
crtc_y = max(0, crtc_y);
|
|
|
|
dsp_stx = crtc_x + crtc->mode.htotal - crtc->mode.hsync_start;
|
|
dsp_sty = crtc_y + crtc->mode.vtotal - crtc->mode.vsync_start;
|
|
|
|
offset = (src.x1 >> 16) * (fb->bits_per_pixel >> 3);
|
|
offset += (src.y1 >> 16) * fb->pitches[0];
|
|
yrgb_mst = rk_obj->dma_addr + offset;
|
|
|
|
y_vir_stride = fb->pitches[0] / (fb->bits_per_pixel >> 3);
|
|
|
|
/*
|
|
* If this plane update changes the plane's framebuffer, (or more
|
|
* precisely, if this update has a different framebuffer than the last
|
|
* update), enqueue it so we can track when it completes.
|
|
*
|
|
* Only when we discover that this update has completed, can we
|
|
* unreference any previous framebuffers.
|
|
*/
|
|
mutex_lock(&vop->vsync_mutex);
|
|
if (fb != vop_win_last_pending_fb(vop_win)) {
|
|
ret = drm_vblank_get(plane->dev, vop->pipe);
|
|
if (ret) {
|
|
DRM_ERROR("failed to get vblank, %d\n", ret);
|
|
mutex_unlock(&vop->vsync_mutex);
|
|
return ret;
|
|
}
|
|
|
|
drm_framebuffer_reference(fb);
|
|
|
|
ret = vop_win_queue_fb(vop_win, fb, yrgb_mst, event);
|
|
if (ret) {
|
|
drm_vblank_put(plane->dev, vop->pipe);
|
|
mutex_unlock(&vop->vsync_mutex);
|
|
return ret;
|
|
}
|
|
|
|
vop->vsync_work_pending = true;
|
|
}
|
|
mutex_unlock(&vop->vsync_mutex);
|
|
|
|
spin_lock(&vop->reg_lock);
|
|
|
|
VOP_WIN_SET(vop, win, format, format);
|
|
VOP_WIN_SET(vop, win, yrgb_vir, y_vir_stride);
|
|
VOP_WIN_SET(vop, win, yrgb_mst, yrgb_mst);
|
|
val = (actual_h - 1) << 16;
|
|
val |= (actual_w - 1) & 0xffff;
|
|
VOP_WIN_SET(vop, win, act_info, val);
|
|
VOP_WIN_SET(vop, win, dsp_info, val);
|
|
val = (dsp_sty - 1) << 16;
|
|
val |= (dsp_stx - 1) & 0xffff;
|
|
VOP_WIN_SET(vop, win, dsp_st, val);
|
|
VOP_WIN_SET(vop, win, rb_swap, rb_swap);
|
|
|
|
if (is_alpha) {
|
|
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);
|
|
|
|
vop_cfg_done(vop);
|
|
spin_unlock(&vop->reg_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vop_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
|
|
struct drm_framebuffer *fb, int crtc_x, int crtc_y,
|
|
unsigned int crtc_w, unsigned int crtc_h,
|
|
uint32_t src_x, uint32_t src_y, uint32_t src_w,
|
|
uint32_t src_h)
|
|
{
|
|
return vop_update_plane_event(plane, crtc, fb, crtc_x, crtc_y, crtc_w,
|
|
crtc_h, src_x, src_y, src_w, src_h,
|
|
NULL);
|
|
}
|
|
|
|
static int vop_update_primary_plane(struct drm_crtc *crtc,
|
|
struct drm_pending_vblank_event *event)
|
|
{
|
|
unsigned int crtc_w, crtc_h;
|
|
|
|
crtc_w = crtc->primary->fb->width - crtc->x;
|
|
crtc_h = crtc->primary->fb->height - crtc->y;
|
|
|
|
return vop_update_plane_event(crtc->primary, crtc, crtc->primary->fb,
|
|
0, 0, crtc_w, crtc_h, crtc->x << 16,
|
|
crtc->y << 16, crtc_w << 16,
|
|
crtc_h << 16, event);
|
|
}
|
|
|
|
static int vop_disable_plane(struct drm_plane *plane)
|
|
{
|
|
struct vop_win *vop_win = to_vop_win(plane);
|
|
const struct vop_win_data *win = vop_win->data;
|
|
struct vop *vop;
|
|
int ret;
|
|
|
|
if (!plane->crtc)
|
|
return 0;
|
|
|
|
vop = to_vop(plane->crtc);
|
|
|
|
ret = drm_vblank_get(plane->dev, vop->pipe);
|
|
if (ret) {
|
|
DRM_ERROR("failed to get vblank, %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
mutex_lock(&vop->vsync_mutex);
|
|
|
|
ret = vop_win_queue_fb(vop_win, NULL, 0, NULL);
|
|
if (ret) {
|
|
drm_vblank_put(plane->dev, vop->pipe);
|
|
mutex_unlock(&vop->vsync_mutex);
|
|
return ret;
|
|
}
|
|
|
|
vop->vsync_work_pending = true;
|
|
mutex_unlock(&vop->vsync_mutex);
|
|
|
|
spin_lock(&vop->reg_lock);
|
|
VOP_WIN_SET(vop, win, enable, 0);
|
|
vop_cfg_done(vop);
|
|
spin_unlock(&vop->reg_lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void vop_plane_destroy(struct drm_plane *plane)
|
|
{
|
|
vop_disable_plane(plane);
|
|
drm_plane_cleanup(plane);
|
|
}
|
|
|
|
static const struct drm_plane_funcs vop_plane_funcs = {
|
|
.update_plane = vop_update_plane,
|
|
.disable_plane = vop_disable_plane,
|
|
.destroy = vop_plane_destroy,
|
|
};
|
|
|
|
int rockchip_drm_crtc_mode_config(struct drm_crtc *crtc,
|
|
int connector_type,
|
|
int out_mode)
|
|
{
|
|
struct vop *vop = to_vop(crtc);
|
|
|
|
vop->connector_type = connector_type;
|
|
vop->connector_out_mode = out_mode;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(rockchip_drm_crtc_mode_config);
|
|
|
|
static int vop_crtc_enable_vblank(struct drm_crtc *crtc)
|
|
{
|
|
struct vop *vop = to_vop(crtc);
|
|
unsigned long flags;
|
|
|
|
if (!vop->is_enabled)
|
|
return -EPERM;
|
|
|
|
spin_lock_irqsave(&vop->irq_lock, flags);
|
|
|
|
vop_mask_write(vop, INTR_CTRL0, FS_INTR_MASK, FS_INTR_EN(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 (!vop->is_enabled)
|
|
return;
|
|
|
|
spin_lock_irqsave(&vop->irq_lock, flags);
|
|
vop_mask_write(vop, INTR_CTRL0, FS_INTR_MASK, FS_INTR_EN(0));
|
|
spin_unlock_irqrestore(&vop->irq_lock, flags);
|
|
}
|
|
|
|
static const struct rockchip_crtc_funcs private_crtc_funcs = {
|
|
.enable_vblank = vop_crtc_enable_vblank,
|
|
.disable_vblank = vop_crtc_disable_vblank,
|
|
};
|
|
|
|
static void vop_crtc_dpms(struct drm_crtc *crtc, int mode)
|
|
{
|
|
DRM_DEBUG_KMS("crtc[%d] mode[%d]\n", crtc->base.id, mode);
|
|
|
|
switch (mode) {
|
|
case DRM_MODE_DPMS_ON:
|
|
vop_enable(crtc);
|
|
break;
|
|
case DRM_MODE_DPMS_STANDBY:
|
|
case DRM_MODE_DPMS_SUSPEND:
|
|
case DRM_MODE_DPMS_OFF:
|
|
vop_disable(crtc);
|
|
break;
|
|
default:
|
|
DRM_DEBUG_KMS("unspecified mode %d\n", mode);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void vop_crtc_prepare(struct drm_crtc *crtc)
|
|
{
|
|
vop_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
|
|
}
|
|
|
|
static bool vop_crtc_mode_fixup(struct drm_crtc *crtc,
|
|
const struct drm_display_mode *mode,
|
|
struct drm_display_mode *adjusted_mode)
|
|
{
|
|
if (adjusted_mode->htotal == 0 || adjusted_mode->vtotal == 0)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
static int vop_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
|
|
struct drm_framebuffer *old_fb)
|
|
{
|
|
int ret;
|
|
|
|
crtc->x = x;
|
|
crtc->y = y;
|
|
|
|
ret = vop_update_primary_plane(crtc, NULL);
|
|
if (ret < 0) {
|
|
DRM_ERROR("fail to update plane\n");
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int vop_crtc_mode_set(struct drm_crtc *crtc,
|
|
struct drm_display_mode *mode,
|
|
struct drm_display_mode *adjusted_mode,
|
|
int x, int y, struct drm_framebuffer *fb)
|
|
{
|
|
struct vop *vop = to_vop(crtc);
|
|
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;
|
|
int ret, ret_clk;
|
|
uint32_t val;
|
|
|
|
/*
|
|
* disable dclk to stop frame scan, so that we can safe config mode and
|
|
* enable iommu.
|
|
*/
|
|
clk_disable(vop->dclk);
|
|
|
|
switch (vop->connector_type) {
|
|
case DRM_MODE_CONNECTOR_LVDS:
|
|
VOP_CTRL_SET(vop, rgb_en, 1);
|
|
break;
|
|
case DRM_MODE_CONNECTOR_eDP:
|
|
VOP_CTRL_SET(vop, edp_en, 1);
|
|
break;
|
|
case DRM_MODE_CONNECTOR_HDMIA:
|
|
VOP_CTRL_SET(vop, hdmi_en, 1);
|
|
break;
|
|
default:
|
|
DRM_ERROR("unsupport connector_type[%d]\n",
|
|
vop->connector_type);
|
|
ret = -EINVAL;
|
|
goto out;
|
|
};
|
|
VOP_CTRL_SET(vop, out_mode, vop->connector_out_mode);
|
|
|
|
val = 0x8;
|
|
val |= (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC) ? 0 : 1;
|
|
val |= (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC) ? 0 : (1 << 1);
|
|
VOP_CTRL_SET(vop, pin_pol, val);
|
|
|
|
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);
|
|
|
|
ret = vop_crtc_mode_set_base(crtc, x, y, fb);
|
|
if (ret)
|
|
goto out;
|
|
|
|
/*
|
|
* reset dclk, take all mode config affect, so the clk would run in
|
|
* correct frame.
|
|
*/
|
|
reset_control_assert(vop->dclk_rst);
|
|
usleep_range(10, 20);
|
|
reset_control_deassert(vop->dclk_rst);
|
|
|
|
clk_set_rate(vop->dclk, adjusted_mode->clock * 1000);
|
|
out:
|
|
ret_clk = clk_enable(vop->dclk);
|
|
if (ret_clk < 0) {
|
|
dev_err(vop->dev, "failed to enable dclk - %d\n", ret_clk);
|
|
return ret_clk;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void vop_crtc_commit(struct drm_crtc *crtc)
|
|
{
|
|
}
|
|
|
|
static const struct drm_crtc_helper_funcs vop_crtc_helper_funcs = {
|
|
.dpms = vop_crtc_dpms,
|
|
.prepare = vop_crtc_prepare,
|
|
.mode_fixup = vop_crtc_mode_fixup,
|
|
.mode_set = vop_crtc_mode_set,
|
|
.mode_set_base = vop_crtc_mode_set_base,
|
|
.commit = vop_crtc_commit,
|
|
};
|
|
|
|
static int vop_crtc_page_flip(struct drm_crtc *crtc,
|
|
struct drm_framebuffer *fb,
|
|
struct drm_pending_vblank_event *event,
|
|
uint32_t page_flip_flags)
|
|
{
|
|
struct vop *vop = to_vop(crtc);
|
|
struct drm_framebuffer *old_fb = crtc->primary->fb;
|
|
int ret;
|
|
|
|
/* when the page flip is requested, crtc should be on */
|
|
if (!vop->is_enabled) {
|
|
DRM_DEBUG("page flip request rejected because crtc is off.\n");
|
|
return 0;
|
|
}
|
|
|
|
crtc->primary->fb = fb;
|
|
|
|
ret = vop_update_primary_plane(crtc, event);
|
|
if (ret)
|
|
crtc->primary->fb = old_fb;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void vop_win_state_complete(struct vop_win *vop_win,
|
|
struct vop_win_state *state)
|
|
{
|
|
struct vop *vop = vop_win->vop;
|
|
struct drm_crtc *crtc = &vop->crtc;
|
|
struct drm_device *drm = crtc->dev;
|
|
unsigned long flags;
|
|
|
|
if (state->event) {
|
|
spin_lock_irqsave(&drm->event_lock, flags);
|
|
drm_send_vblank_event(drm, -1, state->event);
|
|
spin_unlock_irqrestore(&drm->event_lock, flags);
|
|
}
|
|
|
|
list_del(&state->head);
|
|
drm_vblank_put(crtc->dev, vop->pipe);
|
|
}
|
|
|
|
static void vop_crtc_destroy(struct drm_crtc *crtc)
|
|
{
|
|
drm_crtc_cleanup(crtc);
|
|
}
|
|
|
|
static const struct drm_crtc_funcs vop_crtc_funcs = {
|
|
.set_config = drm_crtc_helper_set_config,
|
|
.page_flip = vop_crtc_page_flip,
|
|
.destroy = vop_crtc_destroy,
|
|
};
|
|
|
|
static bool vop_win_state_is_active(struct vop_win *vop_win,
|
|
struct vop_win_state *state)
|
|
{
|
|
bool active = false;
|
|
|
|
if (state->fb) {
|
|
dma_addr_t yrgb_mst;
|
|
|
|
/* check yrgb_mst to tell if pending_fb is now front */
|
|
yrgb_mst = VOP_WIN_GET_YRGBADDR(vop_win->vop, vop_win->data);
|
|
|
|
active = (yrgb_mst == state->yrgb_mst);
|
|
} else {
|
|
bool enabled;
|
|
|
|
/* if enable bit is clear, plane is now disabled */
|
|
enabled = VOP_WIN_GET(vop_win->vop, vop_win->data, enable);
|
|
|
|
active = (enabled == 0);
|
|
}
|
|
|
|
return active;
|
|
}
|
|
|
|
static void vop_win_state_destroy(struct vop_win_state *state)
|
|
{
|
|
struct drm_framebuffer *fb = state->fb;
|
|
|
|
if (fb)
|
|
drm_framebuffer_unreference(fb);
|
|
|
|
kfree(state);
|
|
}
|
|
|
|
static void vop_win_update_state(struct vop_win *vop_win)
|
|
{
|
|
struct vop_win_state *state, *n, *new_active = NULL;
|
|
|
|
/* Check if any pending states are now active */
|
|
list_for_each_entry(state, &vop_win->pending, head)
|
|
if (vop_win_state_is_active(vop_win, state)) {
|
|
new_active = state;
|
|
break;
|
|
}
|
|
|
|
if (!new_active)
|
|
return;
|
|
|
|
/*
|
|
* Destroy any 'skipped' pending states - states that were queued
|
|
* before the newly active state.
|
|
*/
|
|
list_for_each_entry_safe(state, n, &vop_win->pending, head) {
|
|
if (state == new_active)
|
|
break;
|
|
vop_win_state_complete(vop_win, state);
|
|
vop_win_state_destroy(state);
|
|
}
|
|
|
|
vop_win_state_complete(vop_win, new_active);
|
|
|
|
if (vop_win->active)
|
|
vop_win_state_destroy(vop_win->active);
|
|
vop_win->active = new_active;
|
|
}
|
|
|
|
static bool vop_win_has_pending_state(struct vop_win *vop_win)
|
|
{
|
|
return !list_empty(&vop_win->pending);
|
|
}
|
|
|
|
static irqreturn_t vop_isr_thread(int irq, void *data)
|
|
{
|
|
struct vop *vop = data;
|
|
const struct vop_data *vop_data = vop->data;
|
|
unsigned int i;
|
|
|
|
mutex_lock(&vop->vsync_mutex);
|
|
|
|
if (!vop->vsync_work_pending)
|
|
goto done;
|
|
|
|
vop->vsync_work_pending = false;
|
|
|
|
for (i = 0; i < vop_data->win_size; i++) {
|
|
struct vop_win *vop_win = &vop->win[i];
|
|
|
|
vop_win_update_state(vop_win);
|
|
if (vop_win_has_pending_state(vop_win))
|
|
vop->vsync_work_pending = true;
|
|
}
|
|
|
|
done:
|
|
mutex_unlock(&vop->vsync_mutex);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t vop_isr(int irq, void *data)
|
|
{
|
|
struct vop *vop = data;
|
|
uint32_t intr0_reg, active_irqs;
|
|
unsigned long flags;
|
|
int ret = IRQ_NONE;
|
|
|
|
/*
|
|
* INTR_CTRL0 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);
|
|
intr0_reg = vop_readl(vop, INTR_CTRL0);
|
|
active_irqs = intr0_reg & INTR_MASK;
|
|
/* Clear all active interrupt sources */
|
|
if (active_irqs)
|
|
vop_writel(vop, INTR_CTRL0,
|
|
intr0_reg | (active_irqs << INTR_CLR_SHIFT));
|
|
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 & FS_INTR) {
|
|
drm_handle_vblank(vop->drm_dev, vop->pipe);
|
|
active_irqs &= ~FS_INTR;
|
|
ret = (vop->vsync_work_pending) ? IRQ_WAKE_THREAD : IRQ_HANDLED;
|
|
}
|
|
|
|
/* Unhandled irqs are spurious. */
|
|
if (active_irqs)
|
|
DRM_ERROR("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;
|
|
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);
|
|
if (ret) {
|
|
DRM_ERROR("failed to initialize plane\n");
|
|
goto err_cleanup_planes;
|
|
}
|
|
|
|
plane = &vop_win->base;
|
|
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);
|
|
if (ret)
|
|
return ret;
|
|
|
|
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);
|
|
if (ret) {
|
|
DRM_ERROR("failed to initialize overlay plane\n");
|
|
goto err_cleanup_crtc;
|
|
}
|
|
}
|
|
|
|
port = of_get_child_by_name(dev->of_node, "port");
|
|
if (!port) {
|
|
DRM_ERROR("no port node found in %s\n",
|
|
dev->of_node->full_name);
|
|
goto err_cleanup_crtc;
|
|
}
|
|
|
|
init_completion(&vop->dsp_hold_completion);
|
|
crtc->port = port;
|
|
vop->pipe = drm_crtc_index(crtc);
|
|
rockchip_register_crtc_funcs(drm_dev, &private_crtc_funcs, vop->pipe);
|
|
|
|
return 0;
|
|
|
|
err_cleanup_crtc:
|
|
drm_crtc_cleanup(crtc);
|
|
err_cleanup_planes:
|
|
list_for_each_entry(plane, &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;
|
|
|
|
rockchip_unregister_crtc_funcs(vop->drm_dev, vop->pipe);
|
|
of_node_put(crtc->port);
|
|
drm_crtc_cleanup(crtc);
|
|
}
|
|
|
|
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 = clk_prepare(vop->hclk);
|
|
if (ret < 0) {
|
|
dev_err(vop->dev, "failed to prepare hclk\n");
|
|
return ret;
|
|
}
|
|
|
|
ret = clk_prepare(vop->dclk);
|
|
if (ret < 0) {
|
|
dev_err(vop->dev, "failed to prepare dclk\n");
|
|
goto err_unprepare_hclk;
|
|
}
|
|
|
|
ret = clk_prepare(vop->aclk);
|
|
if (ret < 0) {
|
|
dev_err(vop->dev, "failed to prepare aclk\n");
|
|
goto err_unprepare_dclk;
|
|
}
|
|
|
|
/*
|
|
* enable hclk, so that we can config vop register.
|
|
*/
|
|
ret = clk_enable(vop->hclk);
|
|
if (ret < 0) {
|
|
dev_err(vop->dev, "failed to prepare aclk\n");
|
|
goto err_unprepare_aclk;
|
|
}
|
|
/*
|
|
* 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_hclk;
|
|
}
|
|
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_unprepare_aclk;
|
|
}
|
|
reset_control_assert(vop->dclk_rst);
|
|
usleep_range(10, 20);
|
|
reset_control_deassert(vop->dclk_rst);
|
|
|
|
clk_disable(vop->hclk);
|
|
|
|
vop->is_enabled = false;
|
|
|
|
return 0;
|
|
|
|
err_disable_hclk:
|
|
clk_disable(vop->hclk);
|
|
err_unprepare_aclk:
|
|
clk_unprepare(vop->aclk);
|
|
err_unprepare_dclk:
|
|
clk_unprepare(vop->dclk);
|
|
err_unprepare_hclk:
|
|
clk_unprepare(vop->hclk);
|
|
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;
|
|
INIT_LIST_HEAD(&vop_win->pending);
|
|
}
|
|
}
|
|
|
|
static int vop_bind(struct device *dev, struct device *master, void *data)
|
|
{
|
|
struct platform_device *pdev = to_platform_device(dev);
|
|
const struct of_device_id *of_id;
|
|
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;
|
|
|
|
of_id = of_match_device(vop_driver_dt_match, dev);
|
|
vop_data = of_id->data;
|
|
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;
|
|
|
|
ret = vop_initial(vop);
|
|
if (ret < 0) {
|
|
dev_err(&pdev->dev, "cannot initial vop dev - err %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
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_threaded_irq(dev, vop->irq, vop_isr, vop_isr_thread,
|
|
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)
|
|
return ret;
|
|
|
|
pm_runtime_enable(&pdev->dev);
|
|
return 0;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
static const struct component_ops vop_component_ops = {
|
|
.bind = vop_bind,
|
|
.unbind = vop_unbind,
|
|
};
|
|
|
|
static int vop_probe(struct platform_device *pdev)
|
|
{
|
|
struct device *dev = &pdev->dev;
|
|
|
|
if (!dev->of_node) {
|
|
dev_err(dev, "can't find vop devices\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
return component_add(dev, &vop_component_ops);
|
|
}
|
|
|
|
static int vop_remove(struct platform_device *pdev)
|
|
{
|
|
component_del(&pdev->dev, &vop_component_ops);
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct platform_driver vop_platform_driver = {
|
|
.probe = vop_probe,
|
|
.remove = vop_remove,
|
|
.driver = {
|
|
.name = "rockchip-vop",
|
|
.owner = THIS_MODULE,
|
|
.of_match_table = of_match_ptr(vop_driver_dt_match),
|
|
},
|
|
};
|
|
|
|
module_platform_driver(vop_platform_driver);
|
|
|
|
MODULE_AUTHOR("Mark Yao <mark.yao@rock-chips.com>");
|
|
MODULE_DESCRIPTION("ROCKCHIP VOP Driver");
|
|
MODULE_LICENSE("GPL v2");
|