| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Paul Cercueil | 6829 | 91.32% | 53 | 56.99% |
| Paul Boddie | 247 | 3.30% | 2 | 2.15% |
| Doug Anderson | 121 | 1.62% | 1 | 1.08% |
| Maxime Ripard | 103 | 1.38% | 11 | 11.83% |
| Christophe Branchereau | 46 | 0.62% | 1 | 1.08% |
| H. Nikolaus Schaller | 37 | 0.49% | 2 | 2.15% |
| Daniel Vetter | 30 | 0.40% | 6 | 6.45% |
| Thomas Zimmermann | 20 | 0.27% | 4 | 4.30% |
| Yuan Can | 11 | 0.15% | 1 | 1.08% |
| Javier Martinez Canillas | 9 | 0.12% | 1 | 1.08% |
| Danilo Krummrich | 7 | 0.09% | 2 | 2.15% |
| Boris Brezillon | 6 | 0.08% | 2 | 2.15% |
| Andrey Grodzovsky | 4 | 0.05% | 1 | 1.08% |
| Uwe Kleine-König | 2 | 0.03% | 1 | 1.08% |
| Maarten Lankhorst | 2 | 0.03% | 1 | 1.08% |
| Laurent Pinchart | 1 | 0.01% | 1 | 1.08% |
| Sam Ravnborg | 1 | 0.01% | 1 | 1.08% |
| Yong Wu | 1 | 0.01% | 1 | 1.08% |
| Rob Herring | 1 | 0.01% | 1 | 1.08% |
| Total | 7478 | 93 |
// SPDX-License-Identifier: GPL-2.0 // // Ingenic JZ47xx KMS driver // // Copyright (C) 2019, Paul Cercueil <paul@crapouillou.net> #include "ingenic-drm.h" #include <linux/bitfield.h> #include <linux/component.h> #include <linux/clk.h> #include <linux/dma-mapping.h> #include <linux/io.h> #include <linux/media-bus-format.h> #include <linux/module.h> #include <linux/mutex.h> #include <linux/of.h> #include <linux/of_reserved_mem.h> #include <linux/platform_device.h> #include <linux/pm.h> #include <linux/regmap.h> #include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_bridge.h> #include <drm/drm_bridge_connector.h> #include <drm/drm_color_mgmt.h> #include <drm/drm_crtc.h> #include <drm/drm_damage_helper.h> #include <drm/drm_drv.h> #include <drm/drm_encoder.h> #include <drm/drm_gem_dma_helper.h> #include <drm/drm_fb_dma_helper.h> #include <drm/drm_fbdev_generic.h> #include <drm/drm_fourcc.h> #include <drm/drm_framebuffer.h> #include <drm/drm_gem_atomic_helper.h> #include <drm/drm_gem_framebuffer_helper.h> #include <drm/drm_managed.h> #include <drm/drm_of.h> #include <drm/drm_panel.h> #include <drm/drm_plane.h> #include <drm/drm_probe_helper.h> #include <drm/drm_vblank.h> #define HWDESC_PALETTE 2 struct ingenic_dma_hwdesc { u32 next; u32 addr; u32 id; u32 cmd; /* extended hw descriptor for jz4780 */ u32 offsize; u32 pagewidth; u32 cpos; u32 dessize; } __aligned(16); struct ingenic_dma_hwdescs { struct ingenic_dma_hwdesc hwdesc[3]; u16 palette[256] __aligned(16); }; struct jz_soc_info { bool needs_dev_clk; bool has_osd; bool has_alpha; bool map_noncoherent; bool use_extended_hwdesc; bool plane_f0_not_working; u32 max_burst; unsigned int max_width, max_height; const u32 *formats_f0, *formats_f1; unsigned int num_formats_f0, num_formats_f1; }; struct ingenic_drm_private_state { struct drm_private_state base; bool use_palette; }; struct ingenic_drm { struct drm_device drm; /* * f1 (aka. foreground1) is our primary plane, on top of which * f0 (aka. foreground0) can be overlayed. Z-order is fixed in * hardware and cannot be changed. */ struct drm_plane f0, f1, *ipu_plane; struct drm_crtc crtc; struct device *dev; struct regmap *map; struct clk *lcd_clk, *pix_clk; const struct jz_soc_info *soc_info; struct ingenic_dma_hwdescs *dma_hwdescs; dma_addr_t dma_hwdescs_phys; bool panel_is_sharp; bool no_vblank; /* * clk_mutex is used to synchronize the pixel clock rate update with * the VBLANK. When the pixel clock's parent clock needs to be updated, * clock_nb's notifier function will lock the mutex, then wait until the * next VBLANK. At that point, the parent clock's rate can be updated, * and the mutex is then unlocked. If an atomic commit happens in the * meantime, it will lock on the mutex, effectively waiting until the * clock update process finishes. Finally, the pixel clock's rate will * be recomputed when the mutex has been released, in the pending atomic * commit, or a future one. */ struct mutex clk_mutex; bool update_clk_rate; struct notifier_block clock_nb; struct drm_private_obj private_obj; }; struct ingenic_drm_bridge { struct drm_encoder encoder; struct drm_bridge bridge, *next_bridge; struct drm_bus_cfg bus_cfg; }; static inline struct ingenic_drm_bridge * to_ingenic_drm_bridge(struct drm_encoder *encoder) { return container_of(encoder, struct ingenic_drm_bridge, encoder); } static inline struct ingenic_drm_private_state * to_ingenic_drm_priv_state(struct drm_private_state *state) { return container_of(state, struct ingenic_drm_private_state, base); } static struct ingenic_drm_private_state * ingenic_drm_get_priv_state(struct ingenic_drm *priv, struct drm_atomic_state *state) { struct drm_private_state *priv_state; priv_state = drm_atomic_get_private_obj_state(state, &priv->private_obj); if (IS_ERR(priv_state)) return ERR_CAST(priv_state); return to_ingenic_drm_priv_state(priv_state); } static struct ingenic_drm_private_state * ingenic_drm_get_new_priv_state(struct ingenic_drm *priv, struct drm_atomic_state *state) { struct drm_private_state *priv_state; priv_state = drm_atomic_get_new_private_obj_state(state, &priv->private_obj); if (!priv_state) return NULL; return to_ingenic_drm_priv_state(priv_state); } static bool ingenic_drm_writeable_reg(struct device *dev, unsigned int reg) { switch (reg) { case JZ_REG_LCD_IID: case JZ_REG_LCD_SA0: case JZ_REG_LCD_FID0: case JZ_REG_LCD_CMD0: case JZ_REG_LCD_SA1: case JZ_REG_LCD_FID1: case JZ_REG_LCD_CMD1: return false; default: return true; } } static const struct regmap_config ingenic_drm_regmap_config = { .reg_bits = 32, .val_bits = 32, .reg_stride = 4, .writeable_reg = ingenic_drm_writeable_reg, }; static inline struct ingenic_drm *drm_device_get_priv(struct drm_device *drm) { return container_of(drm, struct ingenic_drm, drm); } static inline struct ingenic_drm *drm_crtc_get_priv(struct drm_crtc *crtc) { return container_of(crtc, struct ingenic_drm, crtc); } static inline struct ingenic_drm *drm_nb_get_priv(struct notifier_block *nb) { return container_of(nb, struct ingenic_drm, clock_nb); } static inline dma_addr_t dma_hwdesc_addr(const struct ingenic_drm *priv, unsigned int idx) { u32 offset = offsetof(struct ingenic_dma_hwdescs, hwdesc[idx]); return priv->dma_hwdescs_phys + offset; } static int ingenic_drm_update_pixclk(struct notifier_block *nb, unsigned long action, void *data) { struct ingenic_drm *priv = drm_nb_get_priv(nb); switch (action) { case PRE_RATE_CHANGE: mutex_lock(&priv->clk_mutex); priv->update_clk_rate = true; drm_crtc_wait_one_vblank(&priv->crtc); return NOTIFY_OK; default: mutex_unlock(&priv->clk_mutex); return NOTIFY_OK; } } static void ingenic_drm_bridge_atomic_enable(struct drm_bridge *bridge, struct drm_bridge_state *old_bridge_state) { struct ingenic_drm *priv = drm_device_get_priv(bridge->dev); regmap_write(priv->map, JZ_REG_LCD_STATE, 0); regmap_update_bits(priv->map, JZ_REG_LCD_CTRL, JZ_LCD_CTRL_ENABLE | JZ_LCD_CTRL_DISABLE, JZ_LCD_CTRL_ENABLE); } static void ingenic_drm_crtc_atomic_enable(struct drm_crtc *crtc, struct drm_atomic_state *state) { struct ingenic_drm *priv = drm_crtc_get_priv(crtc); struct ingenic_drm_private_state *priv_state; unsigned int next_id; priv_state = ingenic_drm_get_priv_state(priv, state); if (WARN_ON(IS_ERR(priv_state))) return; /* Set addresses of our DMA descriptor chains */ next_id = priv_state->use_palette ? HWDESC_PALETTE : 0; regmap_write(priv->map, JZ_REG_LCD_DA0, dma_hwdesc_addr(priv, next_id)); regmap_write(priv->map, JZ_REG_LCD_DA1, dma_hwdesc_addr(priv, 1)); drm_crtc_vblank_on(crtc); } static void ingenic_drm_bridge_atomic_disable(struct drm_bridge *bridge, struct drm_bridge_state *old_bridge_state) { struct ingenic_drm *priv = drm_device_get_priv(bridge->dev); unsigned int var; regmap_update_bits(priv->map, JZ_REG_LCD_CTRL, JZ_LCD_CTRL_DISABLE, JZ_LCD_CTRL_DISABLE); regmap_read_poll_timeout(priv->map, JZ_REG_LCD_STATE, var, var & JZ_LCD_STATE_DISABLED, 1000, 0); } static void ingenic_drm_crtc_atomic_disable(struct drm_crtc *crtc, struct drm_atomic_state *state) { drm_crtc_vblank_off(crtc); } static void ingenic_drm_crtc_update_timings(struct ingenic_drm *priv, struct drm_display_mode *mode) { unsigned int vpe, vds, vde, vt, hpe, hds, hde, ht; vpe = mode->crtc_vsync_end - mode->crtc_vsync_start; vds = mode->crtc_vtotal - mode->crtc_vsync_start; vde = vds + mode->crtc_vdisplay; vt = vde + mode->crtc_vsync_start - mode->crtc_vdisplay; hpe = mode->crtc_hsync_end - mode->crtc_hsync_start; hds = mode->crtc_htotal - mode->crtc_hsync_start; hde = hds + mode->crtc_hdisplay; ht = hde + mode->crtc_hsync_start - mode->crtc_hdisplay; regmap_write(priv->map, JZ_REG_LCD_VSYNC, 0 << JZ_LCD_VSYNC_VPS_OFFSET | vpe << JZ_LCD_VSYNC_VPE_OFFSET); regmap_write(priv->map, JZ_REG_LCD_HSYNC, 0 << JZ_LCD_HSYNC_HPS_OFFSET | hpe << JZ_LCD_HSYNC_HPE_OFFSET); regmap_write(priv->map, JZ_REG_LCD_VAT, ht << JZ_LCD_VAT_HT_OFFSET | vt << JZ_LCD_VAT_VT_OFFSET); regmap_write(priv->map, JZ_REG_LCD_DAH, hds << JZ_LCD_DAH_HDS_OFFSET | hde << JZ_LCD_DAH_HDE_OFFSET); regmap_write(priv->map, JZ_REG_LCD_DAV, vds << JZ_LCD_DAV_VDS_OFFSET | vde << JZ_LCD_DAV_VDE_OFFSET); if (priv->panel_is_sharp) { regmap_write(priv->map, JZ_REG_LCD_PS, hde << 16 | (hde + 1)); regmap_write(priv->map, JZ_REG_LCD_CLS, hde << 16 | (hde + 1)); regmap_write(priv->map, JZ_REG_LCD_SPL, hpe << 16 | (hpe + 1)); regmap_write(priv->map, JZ_REG_LCD_REV, mode->htotal << 16); } regmap_update_bits(priv->map, JZ_REG_LCD_CTRL, JZ_LCD_CTRL_OFUP | JZ_LCD_CTRL_BURST_MASK, JZ_LCD_CTRL_OFUP | priv->soc_info->max_burst); /* * IPU restart - specify how much time the LCDC will wait before * transferring a new frame from the IPU. The value is the one * suggested in the programming manual. */ regmap_write(priv->map, JZ_REG_LCD_IPUR, JZ_LCD_IPUR_IPUREN | (ht * vpe / 3) << JZ_LCD_IPUR_IPUR_LSB); } static int ingenic_drm_crtc_atomic_check(struct drm_crtc *crtc, struct drm_atomic_state *state) { struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc); struct ingenic_drm *priv = drm_crtc_get_priv(crtc); struct drm_plane_state *f1_state, *f0_state, *ipu_state = NULL; if (crtc_state->gamma_lut && drm_color_lut_size(crtc_state->gamma_lut) != ARRAY_SIZE(priv->dma_hwdescs->palette)) { dev_dbg(priv->dev, "Invalid palette size\n"); return -EINVAL; } if (drm_atomic_crtc_needs_modeset(crtc_state) && priv->soc_info->has_osd) { f1_state = drm_atomic_get_plane_state(crtc_state->state, &priv->f1); if (IS_ERR(f1_state)) return PTR_ERR(f1_state); f0_state = drm_atomic_get_plane_state(crtc_state->state, &priv->f0); if (IS_ERR(f0_state)) return PTR_ERR(f0_state); if (IS_ENABLED(CONFIG_DRM_INGENIC_IPU) && priv->ipu_plane) { ipu_state = drm_atomic_get_plane_state(crtc_state->state, priv->ipu_plane); if (IS_ERR(ipu_state)) return PTR_ERR(ipu_state); /* IPU and F1 planes cannot be enabled at the same time. */ if (f1_state->fb && ipu_state->fb) { dev_dbg(priv->dev, "Cannot enable both F1 and IPU\n"); return -EINVAL; } } /* If all the planes are disabled, we won't get a VBLANK IRQ */ priv->no_vblank = !f1_state->fb && !f0_state->fb && !(ipu_state && ipu_state->fb); } return 0; } static enum drm_mode_status ingenic_drm_crtc_mode_valid(struct drm_crtc *crtc, const struct drm_display_mode *mode) { struct ingenic_drm *priv = drm_crtc_get_priv(crtc); long rate; if (mode->hdisplay > priv->soc_info->max_width) return MODE_BAD_HVALUE; if (mode->vdisplay > priv->soc_info->max_height) return MODE_BAD_VVALUE; rate = clk_round_rate(priv->pix_clk, mode->clock * 1000); if (rate < 0) return MODE_CLOCK_RANGE; return MODE_OK; } static void ingenic_drm_crtc_atomic_begin(struct drm_crtc *crtc, struct drm_atomic_state *state) { struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc); struct ingenic_drm *priv = drm_crtc_get_priv(crtc); u32 ctrl = 0; if (priv->soc_info->has_osd && drm_atomic_crtc_needs_modeset(crtc_state)) { /* * If IPU plane is enabled, enable IPU as source for the F1 * plane; otherwise use regular DMA. */ if (priv->ipu_plane && priv->ipu_plane->state->fb) ctrl |= JZ_LCD_OSDCTRL_IPU; regmap_update_bits(priv->map, JZ_REG_LCD_OSDCTRL, JZ_LCD_OSDCTRL_IPU, ctrl); } } static void ingenic_drm_crtc_atomic_flush(struct drm_crtc *crtc, struct drm_atomic_state *state) { struct ingenic_drm *priv = drm_crtc_get_priv(crtc); struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, crtc); struct drm_pending_vblank_event *event = crtc_state->event; if (drm_atomic_crtc_needs_modeset(crtc_state)) { ingenic_drm_crtc_update_timings(priv, &crtc_state->adjusted_mode); priv->update_clk_rate = true; } if (priv->update_clk_rate) { mutex_lock(&priv->clk_mutex); clk_set_rate(priv->pix_clk, crtc_state->adjusted_mode.crtc_clock * 1000); priv->update_clk_rate = false; mutex_unlock(&priv->clk_mutex); } if (event) { crtc_state->event = NULL; spin_lock_irq(&crtc->dev->event_lock); if (drm_crtc_vblank_get(crtc) == 0) drm_crtc_arm_vblank_event(crtc, event); else drm_crtc_send_vblank_event(crtc, event); spin_unlock_irq(&crtc->dev->event_lock); } } static int ingenic_drm_plane_atomic_check(struct drm_plane *plane, struct drm_atomic_state *state) { struct drm_plane_state *old_plane_state = drm_atomic_get_old_plane_state(state, plane); struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane); struct ingenic_drm *priv = drm_device_get_priv(plane->dev); struct ingenic_drm_private_state *priv_state; struct drm_crtc_state *crtc_state; struct drm_crtc *crtc = new_plane_state->crtc ?: old_plane_state->crtc; int ret; if (!crtc) return 0; if (priv->soc_info->plane_f0_not_working && plane == &priv->f0) return -EINVAL; crtc_state = drm_atomic_get_existing_crtc_state(state, crtc); if (WARN_ON(!crtc_state)) return -EINVAL; priv_state = ingenic_drm_get_priv_state(priv, state); if (IS_ERR(priv_state)) return PTR_ERR(priv_state); ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state, DRM_PLANE_NO_SCALING, DRM_PLANE_NO_SCALING, priv->soc_info->has_osd, true); if (ret) return ret; /* * If OSD is not available, check that the width/height match. * Note that state->src_* are in 16.16 fixed-point format. */ if (!priv->soc_info->has_osd && (new_plane_state->src_x != 0 || (new_plane_state->src_w >> 16) != new_plane_state->crtc_w || (new_plane_state->src_h >> 16) != new_plane_state->crtc_h)) return -EINVAL; priv_state->use_palette = new_plane_state->fb && new_plane_state->fb->format->format == DRM_FORMAT_C8; /* * Require full modeset if enabling or disabling a plane, or changing * its position, size or depth. */ if (priv->soc_info->has_osd && (!old_plane_state->fb || !new_plane_state->fb || old_plane_state->crtc_x != new_plane_state->crtc_x || old_plane_state->crtc_y != new_plane_state->crtc_y || old_plane_state->crtc_w != new_plane_state->crtc_w || old_plane_state->crtc_h != new_plane_state->crtc_h || old_plane_state->fb->format->format != new_plane_state->fb->format->format)) crtc_state->mode_changed = true; if (priv->soc_info->map_noncoherent) drm_atomic_helper_check_plane_damage(state, new_plane_state); return 0; } static void ingenic_drm_plane_enable(struct ingenic_drm *priv, struct drm_plane *plane) { unsigned int en_bit; if (priv->soc_info->has_osd) { if (plane != &priv->f0) en_bit = JZ_LCD_OSDC_F1EN; else en_bit = JZ_LCD_OSDC_F0EN; regmap_set_bits(priv->map, JZ_REG_LCD_OSDC, en_bit); } } void ingenic_drm_plane_disable(struct device *dev, struct drm_plane *plane) { struct ingenic_drm *priv = dev_get_drvdata(dev); unsigned int en_bit; if (priv->soc_info->has_osd) { if (plane != &priv->f0) en_bit = JZ_LCD_OSDC_F1EN; else en_bit = JZ_LCD_OSDC_F0EN; regmap_clear_bits(priv->map, JZ_REG_LCD_OSDC, en_bit); } } static void ingenic_drm_plane_atomic_disable(struct drm_plane *plane, struct drm_atomic_state *state) { struct ingenic_drm *priv = drm_device_get_priv(plane->dev); ingenic_drm_plane_disable(priv->dev, plane); } void ingenic_drm_plane_config(struct device *dev, struct drm_plane *plane, u32 fourcc) { struct ingenic_drm *priv = dev_get_drvdata(dev); struct drm_plane_state *state = plane->state; unsigned int xy_reg, size_reg; unsigned int ctrl = 0; ingenic_drm_plane_enable(priv, plane); if (priv->soc_info->has_osd && plane != &priv->f0) { switch (fourcc) { case DRM_FORMAT_XRGB1555: ctrl |= JZ_LCD_OSDCTRL_RGB555; fallthrough; case DRM_FORMAT_RGB565: ctrl |= JZ_LCD_OSDCTRL_BPP_15_16; break; case DRM_FORMAT_RGB888: ctrl |= JZ_LCD_OSDCTRL_BPP_24_COMP; break; case DRM_FORMAT_XRGB8888: ctrl |= JZ_LCD_OSDCTRL_BPP_18_24; break; case DRM_FORMAT_XRGB2101010: ctrl |= JZ_LCD_OSDCTRL_BPP_30; break; } regmap_update_bits(priv->map, JZ_REG_LCD_OSDCTRL, JZ_LCD_OSDCTRL_BPP_MASK, ctrl); } else { switch (fourcc) { case DRM_FORMAT_C8: ctrl |= JZ_LCD_CTRL_BPP_8; break; case DRM_FORMAT_XRGB1555: ctrl |= JZ_LCD_CTRL_RGB555; fallthrough; case DRM_FORMAT_RGB565: ctrl |= JZ_LCD_CTRL_BPP_15_16; break; case DRM_FORMAT_RGB888: ctrl |= JZ_LCD_CTRL_BPP_24_COMP; break; case DRM_FORMAT_XRGB8888: ctrl |= JZ_LCD_CTRL_BPP_18_24; break; case DRM_FORMAT_XRGB2101010: ctrl |= JZ_LCD_CTRL_BPP_30; break; } regmap_update_bits(priv->map, JZ_REG_LCD_CTRL, JZ_LCD_CTRL_BPP_MASK, ctrl); } if (priv->soc_info->has_osd) { if (plane != &priv->f0) { xy_reg = JZ_REG_LCD_XYP1; size_reg = JZ_REG_LCD_SIZE1; } else { xy_reg = JZ_REG_LCD_XYP0; size_reg = JZ_REG_LCD_SIZE0; } regmap_write(priv->map, xy_reg, state->crtc_x << JZ_LCD_XYP01_XPOS_LSB | state->crtc_y << JZ_LCD_XYP01_YPOS_LSB); regmap_write(priv->map, size_reg, state->crtc_w << JZ_LCD_SIZE01_WIDTH_LSB | state->crtc_h << JZ_LCD_SIZE01_HEIGHT_LSB); } } bool ingenic_drm_map_noncoherent(const struct device *dev) { const struct ingenic_drm *priv = dev_get_drvdata(dev); return priv->soc_info->map_noncoherent; } static void ingenic_drm_update_palette(struct ingenic_drm *priv, const struct drm_color_lut *lut) { unsigned int i; for (i = 0; i < ARRAY_SIZE(priv->dma_hwdescs->palette); i++) { u16 color = drm_color_lut_extract(lut[i].red, 5) << 11 | drm_color_lut_extract(lut[i].green, 6) << 5 | drm_color_lut_extract(lut[i].blue, 5); priv->dma_hwdescs->palette[i] = color; } } static void ingenic_drm_plane_atomic_update(struct drm_plane *plane, struct drm_atomic_state *state) { struct ingenic_drm *priv = drm_device_get_priv(plane->dev); struct drm_plane_state *newstate = drm_atomic_get_new_plane_state(state, plane); struct drm_plane_state *oldstate = drm_atomic_get_old_plane_state(state, plane); unsigned int width, height, cpp, next_id, plane_id; struct ingenic_drm_private_state *priv_state; struct drm_crtc_state *crtc_state; struct ingenic_dma_hwdesc *hwdesc; dma_addr_t addr; u32 fourcc; if (newstate && newstate->fb) { if (priv->soc_info->map_noncoherent) drm_fb_dma_sync_non_coherent(&priv->drm, oldstate, newstate); crtc_state = newstate->crtc->state; plane_id = !!(priv->soc_info->has_osd && plane != &priv->f0); addr = drm_fb_dma_get_gem_addr(newstate->fb, newstate, 0); width = newstate->src_w >> 16; height = newstate->src_h >> 16; cpp = newstate->fb->format->cpp[0]; priv_state = ingenic_drm_get_new_priv_state(priv, state); next_id = (priv_state && priv_state->use_palette) ? HWDESC_PALETTE : plane_id; hwdesc = &priv->dma_hwdescs->hwdesc[plane_id]; hwdesc->addr = addr; hwdesc->cmd = JZ_LCD_CMD_EOF_IRQ | (width * height * cpp / 4); hwdesc->next = dma_hwdesc_addr(priv, next_id); if (priv->soc_info->use_extended_hwdesc) { hwdesc->cmd |= JZ_LCD_CMD_FRM_ENABLE; /* Extended 8-byte descriptor */ hwdesc->cpos = 0; hwdesc->offsize = 0; hwdesc->pagewidth = 0; switch (newstate->fb->format->format) { case DRM_FORMAT_XRGB1555: hwdesc->cpos |= JZ_LCD_CPOS_RGB555; fallthrough; case DRM_FORMAT_RGB565: hwdesc->cpos |= JZ_LCD_CPOS_BPP_15_16; break; case DRM_FORMAT_XRGB8888: hwdesc->cpos |= JZ_LCD_CPOS_BPP_18_24; break; } hwdesc->cpos |= (JZ_LCD_CPOS_COEFFICIENT_1 << JZ_LCD_CPOS_COEFFICIENT_OFFSET); hwdesc->dessize = (0xff << JZ_LCD_DESSIZE_ALPHA_OFFSET) | FIELD_PREP(JZ_LCD_DESSIZE_HEIGHT_MASK, height - 1) | FIELD_PREP(JZ_LCD_DESSIZE_WIDTH_MASK, width - 1); } if (drm_atomic_crtc_needs_modeset(crtc_state)) { fourcc = newstate->fb->format->format; ingenic_drm_plane_config(priv->dev, plane, fourcc); crtc_state->color_mgmt_changed = fourcc == DRM_FORMAT_C8; } if (crtc_state->color_mgmt_changed) ingenic_drm_update_palette(priv, crtc_state->gamma_lut->data); } } static void ingenic_drm_encoder_atomic_mode_set(struct drm_encoder *encoder, struct drm_crtc_state *crtc_state, struct drm_connector_state *conn_state) { struct ingenic_drm *priv = drm_device_get_priv(encoder->dev); struct drm_display_mode *mode = &crtc_state->adjusted_mode; struct ingenic_drm_bridge *bridge = to_ingenic_drm_bridge(encoder); unsigned int cfg, rgbcfg = 0; priv->panel_is_sharp = bridge->bus_cfg.flags & DRM_BUS_FLAG_SHARP_SIGNALS; if (priv->panel_is_sharp) { cfg = JZ_LCD_CFG_MODE_SPECIAL_TFT_1 | JZ_LCD_CFG_REV_POLARITY; } else { cfg = JZ_LCD_CFG_PS_DISABLE | JZ_LCD_CFG_CLS_DISABLE | JZ_LCD_CFG_SPL_DISABLE | JZ_LCD_CFG_REV_DISABLE; } if (priv->soc_info->use_extended_hwdesc) cfg |= JZ_LCD_CFG_DESCRIPTOR_8; if (mode->flags & DRM_MODE_FLAG_NHSYNC) cfg |= JZ_LCD_CFG_HSYNC_ACTIVE_LOW; if (mode->flags & DRM_MODE_FLAG_NVSYNC) cfg |= JZ_LCD_CFG_VSYNC_ACTIVE_LOW; if (bridge->bus_cfg.flags & DRM_BUS_FLAG_DE_LOW) cfg |= JZ_LCD_CFG_DE_ACTIVE_LOW; if (bridge->bus_cfg.flags & DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE) cfg |= JZ_LCD_CFG_PCLK_FALLING_EDGE; if (!priv->panel_is_sharp) { if (conn_state->connector->connector_type == DRM_MODE_CONNECTOR_TV) { if (mode->flags & DRM_MODE_FLAG_INTERLACE) cfg |= JZ_LCD_CFG_MODE_TV_OUT_I; else cfg |= JZ_LCD_CFG_MODE_TV_OUT_P; } else { switch (bridge->bus_cfg.format) { case MEDIA_BUS_FMT_RGB565_1X16: cfg |= JZ_LCD_CFG_MODE_GENERIC_16BIT; break; case MEDIA_BUS_FMT_RGB666_1X18: cfg |= JZ_LCD_CFG_MODE_GENERIC_18BIT; break; case MEDIA_BUS_FMT_RGB888_1X24: cfg |= JZ_LCD_CFG_MODE_GENERIC_24BIT; break; case MEDIA_BUS_FMT_RGB888_3X8_DELTA: rgbcfg = JZ_LCD_RGBC_EVEN_GBR | JZ_LCD_RGBC_ODD_RGB; fallthrough; case MEDIA_BUS_FMT_RGB888_3X8: cfg |= JZ_LCD_CFG_MODE_8BIT_SERIAL; break; default: break; } } } regmap_write(priv->map, JZ_REG_LCD_CFG, cfg); regmap_write(priv->map, JZ_REG_LCD_RGBC, rgbcfg); } static int ingenic_drm_bridge_attach(struct drm_bridge *bridge, enum drm_bridge_attach_flags flags) { struct ingenic_drm_bridge *ib = to_ingenic_drm_bridge(bridge->encoder); return drm_bridge_attach(bridge->encoder, ib->next_bridge, &ib->bridge, flags); } static int ingenic_drm_bridge_atomic_check(struct drm_bridge *bridge, struct drm_bridge_state *bridge_state, struct drm_crtc_state *crtc_state, struct drm_connector_state *conn_state) { struct drm_display_mode *mode = &crtc_state->adjusted_mode; struct ingenic_drm_bridge *ib = to_ingenic_drm_bridge(bridge->encoder); ib->bus_cfg = bridge_state->output_bus_cfg; if (conn_state->connector->connector_type == DRM_MODE_CONNECTOR_TV) return 0; switch (bridge_state->output_bus_cfg.format) { case MEDIA_BUS_FMT_RGB888_3X8: case MEDIA_BUS_FMT_RGB888_3X8_DELTA: /* * The LCD controller expects timing values in dot-clock ticks, * which is 3x the timing values in pixels when using a 3x8-bit * display; but it will count the display area size in pixels * either way. Go figure. */ mode->crtc_clock = mode->clock * 3; mode->crtc_hsync_start = mode->hsync_start * 3 - mode->hdisplay * 2; mode->crtc_hsync_end = mode->hsync_end * 3 - mode->hdisplay * 2; mode->crtc_hdisplay = mode->hdisplay; mode->crtc_htotal = mode->htotal * 3 - mode->hdisplay * 2; return 0; case MEDIA_BUS_FMT_RGB565_1X16: case MEDIA_BUS_FMT_RGB666_1X18: case MEDIA_BUS_FMT_RGB888_1X24: return 0; default: return -EINVAL; } } static u32 * ingenic_drm_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge, struct drm_bridge_state *bridge_state, struct drm_crtc_state *crtc_state, struct drm_connector_state *conn_state, u32 output_fmt, unsigned int *num_input_fmts) { switch (output_fmt) { case MEDIA_BUS_FMT_RGB888_1X24: case MEDIA_BUS_FMT_RGB666_1X18: case MEDIA_BUS_FMT_RGB565_1X16: case MEDIA_BUS_FMT_RGB888_3X8: case MEDIA_BUS_FMT_RGB888_3X8_DELTA: break; default: *num_input_fmts = 0; return NULL; } return drm_atomic_helper_bridge_propagate_bus_fmt(bridge, bridge_state, crtc_state, conn_state, output_fmt, num_input_fmts); } static irqreturn_t ingenic_drm_irq_handler(int irq, void *arg) { struct ingenic_drm *priv = drm_device_get_priv(arg); unsigned int state; regmap_read(priv->map, JZ_REG_LCD_STATE, &state); regmap_update_bits(priv->map, JZ_REG_LCD_STATE, JZ_LCD_STATE_EOF_IRQ, 0); if (state & JZ_LCD_STATE_EOF_IRQ) drm_crtc_handle_vblank(&priv->crtc); return IRQ_HANDLED; } static int ingenic_drm_enable_vblank(struct drm_crtc *crtc) { struct ingenic_drm *priv = drm_crtc_get_priv(crtc); if (priv->no_vblank) return -EINVAL; regmap_update_bits(priv->map, JZ_REG_LCD_CTRL, JZ_LCD_CTRL_EOF_IRQ, JZ_LCD_CTRL_EOF_IRQ); return 0; } static void ingenic_drm_disable_vblank(struct drm_crtc *crtc) { struct ingenic_drm *priv = drm_crtc_get_priv(crtc); regmap_update_bits(priv->map, JZ_REG_LCD_CTRL, JZ_LCD_CTRL_EOF_IRQ, 0); } static struct drm_framebuffer * ingenic_drm_gem_fb_create(struct drm_device *drm, struct drm_file *file, const struct drm_mode_fb_cmd2 *mode_cmd) { struct ingenic_drm *priv = drm_device_get_priv(drm); if (priv->soc_info->map_noncoherent) return drm_gem_fb_create_with_dirty(drm, file, mode_cmd); return drm_gem_fb_create(drm, file, mode_cmd); } static struct drm_gem_object * ingenic_drm_gem_create_object(struct drm_device *drm, size_t size) { struct ingenic_drm *priv = drm_device_get_priv(drm); struct drm_gem_dma_object *obj; obj = kzalloc(sizeof(*obj), GFP_KERNEL); if (!obj) return ERR_PTR(-ENOMEM); obj->map_noncoherent = priv->soc_info->map_noncoherent; return &obj->base; } static struct drm_private_state * ingenic_drm_duplicate_state(struct drm_private_obj *obj) { struct ingenic_drm_private_state *state = to_ingenic_drm_priv_state(obj->state); state = kmemdup(state, sizeof(*state), GFP_KERNEL); if (!state) return NULL; __drm_atomic_helper_private_obj_duplicate_state(obj, &state->base); return &state->base; } static void ingenic_drm_destroy_state(struct drm_private_obj *obj, struct drm_private_state *state) { struct ingenic_drm_private_state *priv_state = to_ingenic_drm_priv_state(state); kfree(priv_state); } DEFINE_DRM_GEM_DMA_FOPS(ingenic_drm_fops); static const struct drm_driver ingenic_drm_driver_data = { .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC, .name = "ingenic-drm", .desc = "DRM module for Ingenic SoCs", .date = "20200716", .major = 1, .minor = 1, .patchlevel = 0, .fops = &ingenic_drm_fops, .gem_create_object = ingenic_drm_gem_create_object, DRM_GEM_DMA_DRIVER_OPS, }; static const struct drm_plane_funcs ingenic_drm_primary_plane_funcs = { .update_plane = drm_atomic_helper_update_plane, .disable_plane = drm_atomic_helper_disable_plane, .reset = drm_atomic_helper_plane_reset, .destroy = drm_plane_cleanup, .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state, .atomic_destroy_state = drm_atomic_helper_plane_destroy_state, }; static const struct drm_crtc_funcs ingenic_drm_crtc_funcs = { .set_config = drm_atomic_helper_set_config, .page_flip = drm_atomic_helper_page_flip, .reset = drm_atomic_helper_crtc_reset, .destroy = drm_crtc_cleanup, .atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state, .atomic_destroy_state = drm_atomic_helper_crtc_destroy_state, .enable_vblank = ingenic_drm_enable_vblank, .disable_vblank = ingenic_drm_disable_vblank, }; static const struct drm_plane_helper_funcs ingenic_drm_plane_helper_funcs = { .atomic_update = ingenic_drm_plane_atomic_update, .atomic_check = ingenic_drm_plane_atomic_check, .atomic_disable = ingenic_drm_plane_atomic_disable, }; static const struct drm_crtc_helper_funcs ingenic_drm_crtc_helper_funcs = { .atomic_enable = ingenic_drm_crtc_atomic_enable, .atomic_disable = ingenic_drm_crtc_atomic_disable, .atomic_begin = ingenic_drm_crtc_atomic_begin, .atomic_flush = ingenic_drm_crtc_atomic_flush, .atomic_check = ingenic_drm_crtc_atomic_check, .mode_valid = ingenic_drm_crtc_mode_valid, }; static const struct drm_encoder_helper_funcs ingenic_drm_encoder_helper_funcs = { .atomic_mode_set = ingenic_drm_encoder_atomic_mode_set, }; static const struct drm_bridge_funcs ingenic_drm_bridge_funcs = { .attach = ingenic_drm_bridge_attach, .atomic_enable = ingenic_drm_bridge_atomic_enable, .atomic_disable = ingenic_drm_bridge_atomic_disable, .atomic_check = ingenic_drm_bridge_atomic_check, .atomic_reset = drm_atomic_helper_bridge_reset, .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, .atomic_get_input_bus_fmts = ingenic_drm_bridge_atomic_get_input_bus_fmts, }; static const struct drm_mode_config_funcs ingenic_drm_mode_config_funcs = { .fb_create = ingenic_drm_gem_fb_create, .atomic_check = drm_atomic_helper_check, .atomic_commit = drm_atomic_helper_commit, }; static struct drm_mode_config_helper_funcs ingenic_drm_mode_config_helpers = { .atomic_commit_tail = drm_atomic_helper_commit_tail, }; static const struct drm_private_state_funcs ingenic_drm_private_state_funcs = { .atomic_duplicate_state = ingenic_drm_duplicate_state, .atomic_destroy_state = ingenic_drm_destroy_state, }; static void ingenic_drm_unbind_all(void *d) { struct ingenic_drm *priv = d; component_unbind_all(priv->dev, &priv->drm); } static void __maybe_unused ingenic_drm_release_rmem(void *d) { of_reserved_mem_device_release(d); } static void ingenic_drm_configure_hwdesc(struct ingenic_drm *priv, unsigned int hwdesc, unsigned int next_hwdesc, u32 id) { struct ingenic_dma_hwdesc *desc = &priv->dma_hwdescs->hwdesc[hwdesc]; desc->next = dma_hwdesc_addr(priv, next_hwdesc); desc->id = id; } static void ingenic_drm_configure_hwdesc_palette(struct ingenic_drm *priv) { struct ingenic_dma_hwdesc *desc; ingenic_drm_configure_hwdesc(priv, HWDESC_PALETTE, 0, 0xc0); desc = &priv->dma_hwdescs->hwdesc[HWDESC_PALETTE]; desc->addr = priv->dma_hwdescs_phys + offsetof(struct ingenic_dma_hwdescs, palette); desc->cmd = JZ_LCD_CMD_ENABLE_PAL | (sizeof(priv->dma_hwdescs->palette) / 4); } static void ingenic_drm_configure_hwdesc_plane(struct ingenic_drm *priv, unsigned int plane) { ingenic_drm_configure_hwdesc(priv, plane, plane, 0xf0 | plane); } static void ingenic_drm_atomic_private_obj_fini(struct drm_device *drm, void *private_obj) { drm_atomic_private_obj_fini(private_obj); } static int ingenic_drm_bind(struct device *dev, bool has_components) { struct platform_device *pdev = to_platform_device(dev); struct ingenic_drm_private_state *private_state; const struct jz_soc_info *soc_info; struct ingenic_drm *priv; struct clk *parent_clk; struct drm_plane *primary; struct drm_bridge *bridge; struct drm_panel *panel; struct drm_connector *connector; struct drm_encoder *encoder; struct ingenic_drm_bridge *ib; struct drm_device *drm; void __iomem *base; struct resource *res; struct regmap_config regmap_config; long parent_rate; unsigned int i, clone_mask = 0; int ret, irq; u32 osdc = 0; soc_info = of_device_get_match_data(dev); if (!soc_info) { dev_err(dev, "Missing platform data\n"); return -EINVAL; } if (IS_ENABLED(CONFIG_OF_RESERVED_MEM)) { ret = of_reserved_mem_device_init(dev); if (ret && ret != -ENODEV) dev_warn(dev, "Failed to get reserved memory: %d\n", ret); if (!ret) { ret = devm_add_action_or_reset(dev, ingenic_drm_release_rmem, dev); if (ret) return ret; } } priv = devm_drm_dev_alloc(dev, &ingenic_drm_driver_data, struct ingenic_drm, drm); if (IS_ERR(priv)) return PTR_ERR(priv); priv->soc_info = soc_info; priv->dev = dev; drm = &priv->drm; platform_set_drvdata(pdev, priv); ret = drmm_mode_config_init(drm); if (ret) goto err_drvdata; drm->mode_config.min_width = 0; drm->mode_config.min_height = 0; drm->mode_config.max_width = soc_info->max_width; drm->mode_config.max_height = 4095; drm->mode_config.funcs = &ingenic_drm_mode_config_funcs; drm->mode_config.helper_private = &ingenic_drm_mode_config_helpers; base = devm_platform_get_and_ioremap_resource(pdev, 0, &res); if (IS_ERR(base)) { dev_err(dev, "Failed to get memory resource\n"); ret = PTR_ERR(base); goto err_drvdata; } regmap_config = ingenic_drm_regmap_config; regmap_config.max_register = res->end - res->start; priv->map = devm_regmap_init_mmio(dev, base, ®map_config); if (IS_ERR(priv->map)) { dev_err(dev, "Failed to create regmap\n"); ret = PTR_ERR(priv->map); goto err_drvdata; } irq = platform_get_irq(pdev, 0); if (irq < 0) { ret = irq; goto err_drvdata; } if (soc_info->needs_dev_clk) { priv->lcd_clk = devm_clk_get(dev, "lcd"); if (IS_ERR(priv->lcd_clk)) { dev_err(dev, "Failed to get lcd clock\n"); ret = PTR_ERR(priv->lcd_clk); goto err_drvdata; } } priv->pix_clk = devm_clk_get(dev, "lcd_pclk"); if (IS_ERR(priv->pix_clk)) { dev_err(dev, "Failed to get pixel clock\n"); ret = PTR_ERR(priv->pix_clk); goto err_drvdata; } priv->dma_hwdescs = dmam_alloc_coherent(dev, sizeof(*priv->dma_hwdescs), &priv->dma_hwdescs_phys, GFP_KERNEL); if (!priv->dma_hwdescs) { ret = -ENOMEM; goto err_drvdata; } /* Configure DMA hwdesc for foreground0 plane */ ingenic_drm_configure_hwdesc_plane(priv, 0); /* Configure DMA hwdesc for foreground1 plane */ ingenic_drm_configure_hwdesc_plane(priv, 1); /* Configure DMA hwdesc for palette */ ingenic_drm_configure_hwdesc_palette(priv); primary = priv->soc_info->has_osd ? &priv->f1 : &priv->f0; drm_plane_helper_add(primary, &ingenic_drm_plane_helper_funcs); ret = drm_universal_plane_init(drm, primary, 1, &ingenic_drm_primary_plane_funcs, priv->soc_info->formats_f1, priv->soc_info->num_formats_f1, NULL, DRM_PLANE_TYPE_PRIMARY, NULL); if (ret) { dev_err(dev, "Failed to register plane: %i\n", ret); goto err_drvdata; } if (soc_info->map_noncoherent) drm_plane_enable_fb_damage_clips(&priv->f1); drm_crtc_helper_add(&priv->crtc, &ingenic_drm_crtc_helper_funcs); ret = drm_crtc_init_with_planes(drm, &priv->crtc, primary, NULL, &ingenic_drm_crtc_funcs, NULL); if (ret) { dev_err(dev, "Failed to init CRTC: %i\n", ret); goto err_drvdata; } drm_crtc_enable_color_mgmt(&priv->crtc, 0, false, ARRAY_SIZE(priv->dma_hwdescs->palette)); if (soc_info->has_osd) { drm_plane_helper_add(&priv->f0, &ingenic_drm_plane_helper_funcs); ret = drm_universal_plane_init(drm, &priv->f0, 1, &ingenic_drm_primary_plane_funcs, priv->soc_info->formats_f0, priv->soc_info->num_formats_f0, NULL, DRM_PLANE_TYPE_OVERLAY, NULL); if (ret) { dev_err(dev, "Failed to register overlay plane: %i\n", ret); goto err_drvdata; } if (soc_info->map_noncoherent) drm_plane_enable_fb_damage_clips(&priv->f0); if (IS_ENABLED(CONFIG_DRM_INGENIC_IPU) && has_components) { ret = component_bind_all(dev, drm); if (ret) { if (ret != -EPROBE_DEFER) dev_err(dev, "Failed to bind components: %i\n", ret); goto err_drvdata; } ret = devm_add_action_or_reset(dev, ingenic_drm_unbind_all, priv); if (ret) goto err_drvdata; priv->ipu_plane = drm_plane_from_index(drm, 2); if (!priv->ipu_plane) { dev_err(dev, "Failed to retrieve IPU plane\n"); ret = -EINVAL; goto err_drvdata; } } } for (i = 0; ; i++) { ret = drm_of_find_panel_or_bridge(dev->of_node, 0, i, &panel, &bridge); if (ret) { if (ret == -ENODEV) break; /* we're done */ if (ret != -EPROBE_DEFER) dev_err(dev, "Failed to get bridge handle\n"); goto err_drvdata; } if (panel) bridge = devm_drm_panel_bridge_add_typed(dev, panel, DRM_MODE_CONNECTOR_DPI); ib = drmm_encoder_alloc(drm, struct ingenic_drm_bridge, encoder, NULL, DRM_MODE_ENCODER_DPI, NULL); if (IS_ERR(ib)) { ret = PTR_ERR(ib); dev_err(dev, "Failed to init encoder: %d\n", ret); goto err_drvdata; } encoder = &ib->encoder; encoder->possible_crtcs = drm_crtc_mask(&priv->crtc); drm_encoder_helper_add(encoder, &ingenic_drm_encoder_helper_funcs); ib->bridge.funcs = &ingenic_drm_bridge_funcs; ib->next_bridge = bridge; ret = drm_bridge_attach(encoder, &ib->bridge, NULL, DRM_BRIDGE_ATTACH_NO_CONNECTOR); if (ret) { dev_err(dev, "Unable to attach bridge\n"); goto err_drvdata; } connector = drm_bridge_connector_init(drm, encoder); if (IS_ERR(connector)) { dev_err(dev, "Unable to init connector\n"); ret = PTR_ERR(connector); goto err_drvdata; } drm_connector_attach_encoder(connector, encoder); } drm_for_each_encoder(encoder, drm) { clone_mask |= BIT(drm_encoder_index(encoder)); } drm_for_each_encoder(encoder, drm) { encoder->possible_clones = clone_mask; } ret = devm_request_irq(dev, irq, ingenic_drm_irq_handler, 0, drm->driver->name, drm); if (ret) { dev_err(dev, "Unable to install IRQ handler\n"); goto err_drvdata; } ret = drm_vblank_init(drm, 1); if (ret) { dev_err(dev, "Failed calling drm_vblank_init()\n"); goto err_drvdata; } drm_mode_config_reset(drm); ret = clk_prepare_enable(priv->pix_clk); if (ret) { dev_err(dev, "Unable to start pixel clock\n"); goto err_drvdata; } if (priv->lcd_clk) { parent_clk = clk_get_parent(priv->lcd_clk); parent_rate = clk_get_rate(parent_clk); /* LCD Device clock must be 3x the pixel clock for STN panels, * or 1.5x the pixel clock for TFT panels. To avoid having to * check for the LCD device clock everytime we do a mode change, * we set the LCD device clock to the highest rate possible. */ ret = clk_set_rate(priv->lcd_clk, parent_rate); if (ret) { dev_err(dev, "Unable to set LCD clock rate\n"); goto err_pixclk_disable; } ret = clk_prepare_enable(priv->lcd_clk); if (ret) { dev_err(dev, "Unable to start lcd clock\n"); goto err_pixclk_disable; } } /* Enable OSD if available */ if (soc_info->has_osd) osdc |= JZ_LCD_OSDC_OSDEN; if (soc_info->has_alpha) osdc |= JZ_LCD_OSDC_ALPHAEN; regmap_write(priv->map, JZ_REG_LCD_OSDC, osdc); mutex_init(&priv->clk_mutex); priv->clock_nb.notifier_call = ingenic_drm_update_pixclk; parent_clk = clk_get_parent(priv->pix_clk); ret = clk_notifier_register(parent_clk, &priv->clock_nb); if (ret) { dev_err(dev, "Unable to register clock notifier\n"); goto err_devclk_disable; } private_state = kzalloc(sizeof(*private_state), GFP_KERNEL); if (!private_state) { ret = -ENOMEM; goto err_clk_notifier_unregister; } drm_atomic_private_obj_init(drm, &priv->private_obj, &private_state->base, &ingenic_drm_private_state_funcs); ret = drmm_add_action_or_reset(drm, ingenic_drm_atomic_private_obj_fini, &priv->private_obj); if (ret) goto err_private_state_free; ret = drm_dev_register(drm, 0); if (ret) { dev_err(dev, "Failed to register DRM driver\n"); goto err_clk_notifier_unregister; } drm_fbdev_generic_setup(drm, 32); return 0; err_private_state_free: kfree(private_state); err_clk_notifier_unregister: clk_notifier_unregister(parent_clk, &priv->clock_nb); err_devclk_disable: if (priv->lcd_clk) clk_disable_unprepare(priv->lcd_clk); err_pixclk_disable: clk_disable_unprepare(priv->pix_clk); err_drvdata: platform_set_drvdata(pdev, NULL); return ret; } static int ingenic_drm_bind_with_components(struct device *dev) { return ingenic_drm_bind(dev, true); } static void ingenic_drm_unbind(struct device *dev) { struct ingenic_drm *priv = dev_get_drvdata(dev); struct clk *parent_clk = clk_get_parent(priv->pix_clk); clk_notifier_unregister(parent_clk, &priv->clock_nb); if (priv->lcd_clk) clk_disable_unprepare(priv->lcd_clk); clk_disable_unprepare(priv->pix_clk); drm_dev_unregister(&priv->drm); drm_atomic_helper_shutdown(&priv->drm); dev_set_drvdata(dev, NULL); } static const struct component_master_ops ingenic_master_ops = { .bind = ingenic_drm_bind_with_components, .unbind = ingenic_drm_unbind, }; static int ingenic_drm_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct component_match *match = NULL; struct device_node *np; if (!IS_ENABLED(CONFIG_DRM_INGENIC_IPU)) return ingenic_drm_bind(dev, false); /* IPU is at port address 8 */ np = of_graph_get_remote_node(dev->of_node, 8, 0); if (!np) return ingenic_drm_bind(dev, false); drm_of_component_match_add(dev, &match, component_compare_of, np); of_node_put(np); return component_master_add_with_match(dev, &ingenic_master_ops, match); } static void ingenic_drm_remove(struct platform_device *pdev) { struct device *dev = &pdev->dev; if (!IS_ENABLED(CONFIG_DRM_INGENIC_IPU)) ingenic_drm_unbind(dev); else component_master_del(dev, &ingenic_master_ops); } static void ingenic_drm_shutdown(struct platform_device *pdev) { struct ingenic_drm *priv = platform_get_drvdata(pdev); if (priv) drm_atomic_helper_shutdown(&priv->drm); } static int ingenic_drm_suspend(struct device *dev) { struct ingenic_drm *priv = dev_get_drvdata(dev); return drm_mode_config_helper_suspend(&priv->drm); } static int ingenic_drm_resume(struct device *dev) { struct ingenic_drm *priv = dev_get_drvdata(dev); return drm_mode_config_helper_resume(&priv->drm); } static DEFINE_SIMPLE_DEV_PM_OPS(ingenic_drm_pm_ops, ingenic_drm_suspend, ingenic_drm_resume); static const u32 jz4740_formats[] = { DRM_FORMAT_XRGB1555, DRM_FORMAT_RGB565, DRM_FORMAT_XRGB8888, }; static const u32 jz4725b_formats_f1[] = { DRM_FORMAT_XRGB1555, DRM_FORMAT_RGB565, DRM_FORMAT_XRGB8888, }; static const u32 jz4725b_formats_f0[] = { DRM_FORMAT_C8, DRM_FORMAT_XRGB1555, DRM_FORMAT_RGB565, DRM_FORMAT_XRGB8888, }; static const u32 jz4770_formats_f1[] = { DRM_FORMAT_XRGB1555, DRM_FORMAT_RGB565, DRM_FORMAT_RGB888, DRM_FORMAT_XRGB8888, DRM_FORMAT_XRGB2101010, }; static const u32 jz4770_formats_f0[] = { DRM_FORMAT_C8, DRM_FORMAT_XRGB1555, DRM_FORMAT_RGB565, DRM_FORMAT_RGB888, DRM_FORMAT_XRGB8888, DRM_FORMAT_XRGB2101010, }; static const struct jz_soc_info jz4740_soc_info = { .needs_dev_clk = true, .has_osd = false, .map_noncoherent = false, .max_width = 800, .max_height = 600, .max_burst = JZ_LCD_CTRL_BURST_16, .formats_f1 = jz4740_formats, .num_formats_f1 = ARRAY_SIZE(jz4740_formats), /* JZ4740 has only one plane */ }; static const struct jz_soc_info jz4725b_soc_info = { .needs_dev_clk = false, .has_osd = true, .map_noncoherent = false, .max_width = 800, .max_height = 600, .max_burst = JZ_LCD_CTRL_BURST_16, .formats_f1 = jz4725b_formats_f1, .num_formats_f1 = ARRAY_SIZE(jz4725b_formats_f1), .formats_f0 = jz4725b_formats_f0, .num_formats_f0 = ARRAY_SIZE(jz4725b_formats_f0), }; static const struct jz_soc_info jz4760_soc_info = { .needs_dev_clk = false, .has_osd = true, .map_noncoherent = false, .max_width = 1280, .max_height = 720, .max_burst = JZ_LCD_CTRL_BURST_32, .formats_f1 = jz4770_formats_f1, .num_formats_f1 = ARRAY_SIZE(jz4770_formats_f1), .formats_f0 = jz4770_formats_f0, .num_formats_f0 = ARRAY_SIZE(jz4770_formats_f0), }; static const struct jz_soc_info jz4760b_soc_info = { .needs_dev_clk = false, .has_osd = true, .map_noncoherent = false, .max_width = 1280, .max_height = 720, .max_burst = JZ_LCD_CTRL_BURST_64, .formats_f1 = jz4770_formats_f1, .num_formats_f1 = ARRAY_SIZE(jz4770_formats_f1), .formats_f0 = jz4770_formats_f0, .num_formats_f0 = ARRAY_SIZE(jz4770_formats_f0), }; static const struct jz_soc_info jz4770_soc_info = { .needs_dev_clk = false, .has_osd = true, .map_noncoherent = true, .max_width = 1280, .max_height = 720, .max_burst = JZ_LCD_CTRL_BURST_64, .formats_f1 = jz4770_formats_f1, .num_formats_f1 = ARRAY_SIZE(jz4770_formats_f1), .formats_f0 = jz4770_formats_f0, .num_formats_f0 = ARRAY_SIZE(jz4770_formats_f0), }; static const struct jz_soc_info jz4780_soc_info = { .needs_dev_clk = true, .has_osd = true, .has_alpha = true, .use_extended_hwdesc = true, .plane_f0_not_working = true, /* REVISIT */ .max_width = 4096, .max_height = 2048, .max_burst = JZ_LCD_CTRL_BURST_64, .formats_f1 = jz4770_formats_f1, .num_formats_f1 = ARRAY_SIZE(jz4770_formats_f1), .formats_f0 = jz4770_formats_f0, .num_formats_f0 = ARRAY_SIZE(jz4770_formats_f0), }; static const struct of_device_id ingenic_drm_of_match[] = { { .compatible = "ingenic,jz4740-lcd", .data = &jz4740_soc_info }, { .compatible = "ingenic,jz4725b-lcd", .data = &jz4725b_soc_info }, { .compatible = "ingenic,jz4760-lcd", .data = &jz4760_soc_info }, { .compatible = "ingenic,jz4760b-lcd", .data = &jz4760b_soc_info }, { .compatible = "ingenic,jz4770-lcd", .data = &jz4770_soc_info }, { .compatible = "ingenic,jz4780-lcd", .data = &jz4780_soc_info }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, ingenic_drm_of_match); static struct platform_driver ingenic_drm_driver = { .driver = { .name = "ingenic-drm", .pm = pm_sleep_ptr(&ingenic_drm_pm_ops), .of_match_table = of_match_ptr(ingenic_drm_of_match), }, .probe = ingenic_drm_probe, .remove_new = ingenic_drm_remove, .shutdown = ingenic_drm_shutdown, }; static int ingenic_drm_init(void) { int err; if (drm_firmware_drivers_only()) return -ENODEV; if (IS_ENABLED(CONFIG_DRM_INGENIC_IPU)) { err = platform_driver_register(ingenic_ipu_driver_ptr); if (err) return err; } err = platform_driver_register(&ingenic_drm_driver); if (IS_ENABLED(CONFIG_DRM_INGENIC_IPU) && err) platform_driver_unregister(ingenic_ipu_driver_ptr); return err; } module_init(ingenic_drm_init); static void ingenic_drm_exit(void) { platform_driver_unregister(&ingenic_drm_driver); if (IS_ENABLED(CONFIG_DRM_INGENIC_IPU)) platform_driver_unregister(ingenic_ipu_driver_ptr); } module_exit(ingenic_drm_exit); MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>"); MODULE_DESCRIPTION("DRM driver for the Ingenic SoCs\n"); MODULE_LICENSE("GPL");
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