Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 1 | /* |
| 2 | * i.MX IPUv3 Graphics driver |
| 3 | * |
| 4 | * Copyright (C) 2011 Sascha Hauer, Pengutronix |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU General Public License |
| 8 | * as published by the Free Software Foundation; either version 2 |
| 9 | * of the License, or (at your option) any later version. |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 14 | */ |
Russell King | 17b5001 | 2013-11-03 11:23:34 +0000 | [diff] [blame] | 15 | #include <linux/component.h> |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 16 | #include <linux/module.h> |
| 17 | #include <linux/export.h> |
| 18 | #include <linux/device.h> |
| 19 | #include <linux/platform_device.h> |
| 20 | #include <drm/drmP.h> |
Liu Ying | ae2531a | 2016-07-08 17:40:57 +0800 | [diff] [blame] | 21 | #include <drm/drm_atomic.h> |
Liu Ying | 255c35f | 2016-07-08 17:40:56 +0800 | [diff] [blame] | 22 | #include <drm/drm_atomic_helper.h> |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 23 | #include <drm/drm_crtc_helper.h> |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 24 | #include <linux/clk.h> |
Philipp Zabel | b8d181e | 2013-10-10 16:18:45 +0200 | [diff] [blame] | 25 | #include <linux/errno.h> |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 26 | #include <drm/drm_gem_cma_helper.h> |
| 27 | #include <drm/drm_fb_cma_helper.h> |
| 28 | |
Philipp Zabel | 39b9004 | 2013-09-30 16:13:39 +0200 | [diff] [blame] | 29 | #include <video/imx-ipu-v3.h> |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 30 | #include "imx-drm.h" |
Philipp Zabel | b8d181e | 2013-10-10 16:18:45 +0200 | [diff] [blame] | 31 | #include "ipuv3-plane.h" |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 32 | |
| 33 | #define DRIVER_DESC "i.MX IPUv3 Graphics" |
| 34 | |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 35 | struct ipu_crtc { |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 36 | struct device *dev; |
| 37 | struct drm_crtc base; |
| 38 | struct imx_drm_crtc *imx_crtc; |
Philipp Zabel | b8d181e | 2013-10-10 16:18:45 +0200 | [diff] [blame] | 39 | |
| 40 | /* plane[0] is the full plane, plane[1] is the partial plane */ |
| 41 | struct ipu_plane *plane[2]; |
| 42 | |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 43 | struct ipu_dc *dc; |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 44 | struct ipu_di *di; |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 45 | int irq; |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 46 | }; |
| 47 | |
Philipp Zabel | 3df0739 | 2016-07-06 15:47:11 +0200 | [diff] [blame] | 48 | static inline struct ipu_crtc *to_ipu_crtc(struct drm_crtc *crtc) |
| 49 | { |
| 50 | return container_of(crtc, struct ipu_crtc, base); |
| 51 | } |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 52 | |
Liu Ying | f6e396e | 2016-07-08 17:41:01 +0800 | [diff] [blame] | 53 | static void ipu_crtc_enable(struct drm_crtc *crtc) |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 54 | { |
Liu Ying | f6e396e | 2016-07-08 17:41:01 +0800 | [diff] [blame] | 55 | struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc); |
Philipp Zabel | 1e6d486 | 2014-04-14 23:53:23 +0200 | [diff] [blame] | 56 | struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent); |
| 57 | |
Philipp Zabel | 1e6d486 | 2014-04-14 23:53:23 +0200 | [diff] [blame] | 58 | ipu_dc_enable(ipu); |
Philipp Zabel | c115edb | 2014-04-14 23:53:22 +0200 | [diff] [blame] | 59 | ipu_dc_enable_channel(ipu_crtc->dc); |
| 60 | ipu_di_enable(ipu_crtc->di); |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 61 | } |
| 62 | |
Liu Ying | f6e396e | 2016-07-08 17:41:01 +0800 | [diff] [blame] | 63 | static void ipu_crtc_disable(struct drm_crtc *crtc) |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 64 | { |
Liu Ying | f6e396e | 2016-07-08 17:41:01 +0800 | [diff] [blame] | 65 | struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc); |
Philipp Zabel | 1e6d486 | 2014-04-14 23:53:23 +0200 | [diff] [blame] | 66 | struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent); |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 67 | |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 68 | ipu_dc_disable_channel(ipu_crtc->dc); |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 69 | ipu_di_disable(ipu_crtc->di); |
Philipp Zabel | 1e6d486 | 2014-04-14 23:53:23 +0200 | [diff] [blame] | 70 | ipu_dc_disable(ipu); |
Liu Ying | 33f1423 | 2016-07-08 17:40:55 +0800 | [diff] [blame] | 71 | |
Liu Ying | 5f2f911 | 2016-07-08 17:40:59 +0800 | [diff] [blame] | 72 | spin_lock_irq(&crtc->dev->event_lock); |
| 73 | if (crtc->state->event) { |
| 74 | drm_crtc_send_vblank_event(crtc, crtc->state->event); |
| 75 | crtc->state->event = NULL; |
| 76 | } |
| 77 | spin_unlock_irq(&crtc->dev->event_lock); |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 78 | } |
| 79 | |
Philipp Zabel | 49f98bc | 2016-07-06 14:49:24 +0200 | [diff] [blame] | 80 | static void imx_drm_crtc_reset(struct drm_crtc *crtc) |
| 81 | { |
| 82 | struct imx_crtc_state *state; |
| 83 | |
| 84 | if (crtc->state) { |
| 85 | if (crtc->state->mode_blob) |
| 86 | drm_property_unreference_blob(crtc->state->mode_blob); |
| 87 | |
| 88 | state = to_imx_crtc_state(crtc->state); |
| 89 | memset(state, 0, sizeof(*state)); |
| 90 | } else { |
| 91 | state = kzalloc(sizeof(*state), GFP_KERNEL); |
| 92 | if (!state) |
| 93 | return; |
| 94 | crtc->state = &state->base; |
| 95 | } |
| 96 | |
| 97 | state->base.crtc = crtc; |
| 98 | } |
| 99 | |
| 100 | static struct drm_crtc_state *imx_drm_crtc_duplicate_state(struct drm_crtc *crtc) |
| 101 | { |
| 102 | struct imx_crtc_state *state; |
| 103 | |
| 104 | state = kzalloc(sizeof(*state), GFP_KERNEL); |
| 105 | if (!state) |
| 106 | return NULL; |
| 107 | |
| 108 | __drm_atomic_helper_crtc_duplicate_state(crtc, &state->base); |
| 109 | |
| 110 | WARN_ON(state->base.crtc != crtc); |
| 111 | state->base.crtc = crtc; |
| 112 | |
| 113 | return &state->base; |
| 114 | } |
| 115 | |
| 116 | static void imx_drm_crtc_destroy_state(struct drm_crtc *crtc, |
| 117 | struct drm_crtc_state *state) |
| 118 | { |
| 119 | __drm_atomic_helper_crtc_destroy_state(state); |
| 120 | kfree(to_imx_crtc_state(state)); |
| 121 | } |
| 122 | |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 123 | static const struct drm_crtc_funcs ipu_crtc_funcs = { |
Liu Ying | 5f2f911 | 2016-07-08 17:40:59 +0800 | [diff] [blame] | 124 | .set_config = drm_atomic_helper_set_config, |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 125 | .destroy = drm_crtc_cleanup, |
Liu Ying | 5f2f911 | 2016-07-08 17:40:59 +0800 | [diff] [blame] | 126 | .page_flip = drm_atomic_helper_page_flip, |
Philipp Zabel | 49f98bc | 2016-07-06 14:49:24 +0200 | [diff] [blame] | 127 | .reset = imx_drm_crtc_reset, |
| 128 | .atomic_duplicate_state = imx_drm_crtc_duplicate_state, |
| 129 | .atomic_destroy_state = imx_drm_crtc_destroy_state, |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 130 | }; |
| 131 | |
Liu Ying | 33f1423 | 2016-07-08 17:40:55 +0800 | [diff] [blame] | 132 | static irqreturn_t ipu_irq_handler(int irq, void *dev_id) |
| 133 | { |
| 134 | struct ipu_crtc *ipu_crtc = dev_id; |
| 135 | |
| 136 | imx_drm_handle_vblank(ipu_crtc->imx_crtc); |
| 137 | |
Liu Ying | 33f1423 | 2016-07-08 17:40:55 +0800 | [diff] [blame] | 138 | return IRQ_HANDLED; |
| 139 | } |
| 140 | |
| 141 | static bool ipu_crtc_mode_fixup(struct drm_crtc *crtc, |
| 142 | const struct drm_display_mode *mode, |
| 143 | struct drm_display_mode *adjusted_mode) |
| 144 | { |
| 145 | struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc); |
| 146 | struct videomode vm; |
| 147 | int ret; |
| 148 | |
| 149 | drm_display_mode_to_videomode(adjusted_mode, &vm); |
| 150 | |
| 151 | ret = ipu_di_adjust_videomode(ipu_crtc->di, &vm); |
| 152 | if (ret) |
| 153 | return false; |
| 154 | |
| 155 | if ((vm.vsync_len == 0) || (vm.hsync_len == 0)) |
| 156 | return false; |
| 157 | |
| 158 | drm_display_mode_from_videomode(&vm, adjusted_mode); |
| 159 | |
| 160 | return true; |
| 161 | } |
| 162 | |
Liu Ying | 33f1423 | 2016-07-08 17:40:55 +0800 | [diff] [blame] | 163 | static int ipu_crtc_atomic_check(struct drm_crtc *crtc, |
| 164 | struct drm_crtc_state *state) |
| 165 | { |
Liu Ying | 5f2f911 | 2016-07-08 17:40:59 +0800 | [diff] [blame] | 166 | u32 primary_plane_mask = 1 << drm_plane_index(crtc->primary); |
| 167 | |
| 168 | if (state->active && (primary_plane_mask & state->plane_mask) == 0) |
| 169 | return -EINVAL; |
| 170 | |
Liu Ying | 33f1423 | 2016-07-08 17:40:55 +0800 | [diff] [blame] | 171 | return 0; |
| 172 | } |
| 173 | |
Liu Ying | 5f2f911 | 2016-07-08 17:40:59 +0800 | [diff] [blame] | 174 | static void ipu_crtc_atomic_begin(struct drm_crtc *crtc, |
| 175 | struct drm_crtc_state *old_crtc_state) |
| 176 | { |
| 177 | spin_lock_irq(&crtc->dev->event_lock); |
| 178 | if (crtc->state->event) { |
| 179 | WARN_ON(drm_crtc_vblank_get(crtc)); |
| 180 | drm_crtc_arm_vblank_event(crtc, crtc->state->event); |
| 181 | crtc->state->event = NULL; |
| 182 | } |
| 183 | spin_unlock_irq(&crtc->dev->event_lock); |
| 184 | } |
| 185 | |
Liu Ying | 33f1423 | 2016-07-08 17:40:55 +0800 | [diff] [blame] | 186 | static void ipu_crtc_mode_set_nofb(struct drm_crtc *crtc) |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 187 | { |
Russell King | d50141d | 2014-12-21 15:58:19 +0000 | [diff] [blame] | 188 | struct drm_device *dev = crtc->dev; |
| 189 | struct drm_encoder *encoder; |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 190 | struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc); |
Liu Ying | 33f1423 | 2016-07-08 17:40:55 +0800 | [diff] [blame] | 191 | struct drm_display_mode *mode = &crtc->state->adjusted_mode; |
Philipp Zabel | 49f98bc | 2016-07-06 14:49:24 +0200 | [diff] [blame] | 192 | struct imx_crtc_state *imx_crtc_state = to_imx_crtc_state(crtc->state); |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 193 | struct ipu_di_signal_cfg sig_cfg = {}; |
Russell King | d50141d | 2014-12-21 15:58:19 +0000 | [diff] [blame] | 194 | unsigned long encoder_types = 0; |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 195 | |
| 196 | dev_dbg(ipu_crtc->dev, "%s: mode->hdisplay: %d\n", __func__, |
| 197 | mode->hdisplay); |
| 198 | dev_dbg(ipu_crtc->dev, "%s: mode->vdisplay: %d\n", __func__, |
| 199 | mode->vdisplay); |
| 200 | |
Liu Ying | 032003c | 2016-07-08 17:40:58 +0800 | [diff] [blame] | 201 | list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { |
Philipp Zabel | 49f98bc | 2016-07-06 14:49:24 +0200 | [diff] [blame] | 202 | if (encoder->crtc == crtc) |
Russell King | d50141d | 2014-12-21 15:58:19 +0000 | [diff] [blame] | 203 | encoder_types |= BIT(encoder->encoder_type); |
Liu Ying | 032003c | 2016-07-08 17:40:58 +0800 | [diff] [blame] | 204 | } |
Russell King | d50141d | 2014-12-21 15:58:19 +0000 | [diff] [blame] | 205 | |
| 206 | dev_dbg(ipu_crtc->dev, "%s: attached to encoder types 0x%lx\n", |
| 207 | __func__, encoder_types); |
| 208 | |
| 209 | /* |
Philipp Zabel | e0d155c | 2014-07-11 17:28:45 +0200 | [diff] [blame] | 210 | * If we have DAC or LDB, then we need the IPU DI clock to be |
| 211 | * the same as the LDB DI clock. For TVDAC, derive the IPU DI |
| 212 | * clock from 27 MHz TVE_DI clock, but allow to divide it. |
Russell King | d50141d | 2014-12-21 15:58:19 +0000 | [diff] [blame] | 213 | */ |
| 214 | if (encoder_types & (BIT(DRM_MODE_ENCODER_DAC) | |
Russell King | d50141d | 2014-12-21 15:58:19 +0000 | [diff] [blame] | 215 | BIT(DRM_MODE_ENCODER_LVDS))) |
| 216 | sig_cfg.clkflags = IPU_DI_CLKMODE_SYNC | IPU_DI_CLKMODE_EXT; |
Philipp Zabel | e0d155c | 2014-07-11 17:28:45 +0200 | [diff] [blame] | 217 | else if (encoder_types & BIT(DRM_MODE_ENCODER_TVDAC)) |
| 218 | sig_cfg.clkflags = IPU_DI_CLKMODE_EXT; |
Russell King | d50141d | 2014-12-21 15:58:19 +0000 | [diff] [blame] | 219 | else |
| 220 | sig_cfg.clkflags = 0; |
| 221 | |
Philipp Zabel | 49f98bc | 2016-07-06 14:49:24 +0200 | [diff] [blame] | 222 | sig_cfg.enable_pol = !(imx_crtc_state->bus_flags & DRM_BUS_FLAG_DE_LOW); |
Philipp Zabel | 4ed094f | 2016-05-09 17:02:13 +0200 | [diff] [blame] | 223 | /* Default to driving pixel data on negative clock edges */ |
Philipp Zabel | 49f98bc | 2016-07-06 14:49:24 +0200 | [diff] [blame] | 224 | sig_cfg.clk_pol = !!(imx_crtc_state->bus_flags & |
Philipp Zabel | 4ed094f | 2016-05-09 17:02:13 +0200 | [diff] [blame] | 225 | DRM_BUS_FLAG_PIXDATA_POSEDGE); |
Philipp Zabel | 49f98bc | 2016-07-06 14:49:24 +0200 | [diff] [blame] | 226 | sig_cfg.bus_format = imx_crtc_state->bus_format; |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 227 | sig_cfg.v_to_h_sync = 0; |
Philipp Zabel | 49f98bc | 2016-07-06 14:49:24 +0200 | [diff] [blame] | 228 | sig_cfg.hsync_pin = imx_crtc_state->di_hsync_pin; |
| 229 | sig_cfg.vsync_pin = imx_crtc_state->di_vsync_pin; |
Philipp Zabel | 2ea4260 | 2013-04-08 18:04:35 +0200 | [diff] [blame] | 230 | |
Steve Longerbeam | b6835a7 | 2014-12-18 18:00:25 -0800 | [diff] [blame] | 231 | drm_display_mode_to_videomode(mode, &sig_cfg.mode); |
| 232 | |
Liu Ying | 33f1423 | 2016-07-08 17:40:55 +0800 | [diff] [blame] | 233 | ipu_dc_init_sync(ipu_crtc->dc, ipu_crtc->di, |
| 234 | mode->flags & DRM_MODE_FLAG_INTERLACE, |
Philipp Zabel | 49f98bc | 2016-07-06 14:49:24 +0200 | [diff] [blame] | 235 | imx_crtc_state->bus_format, mode->hdisplay); |
Liu Ying | 33f1423 | 2016-07-08 17:40:55 +0800 | [diff] [blame] | 236 | ipu_di_init_sync_panel(ipu_crtc->di, &sig_cfg); |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 237 | } |
| 238 | |
Ville Syrjälä | 7ae847d | 2015-12-15 12:21:09 +0100 | [diff] [blame] | 239 | static const struct drm_crtc_helper_funcs ipu_helper_funcs = { |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 240 | .mode_fixup = ipu_crtc_mode_fixup, |
Liu Ying | 33f1423 | 2016-07-08 17:40:55 +0800 | [diff] [blame] | 241 | .mode_set_nofb = ipu_crtc_mode_set_nofb, |
Liu Ying | 33f1423 | 2016-07-08 17:40:55 +0800 | [diff] [blame] | 242 | .atomic_check = ipu_crtc_atomic_check, |
Liu Ying | 5f2f911 | 2016-07-08 17:40:59 +0800 | [diff] [blame] | 243 | .atomic_begin = ipu_crtc_atomic_begin, |
Liu Ying | f6e396e | 2016-07-08 17:41:01 +0800 | [diff] [blame] | 244 | .disable = ipu_crtc_disable, |
| 245 | .enable = ipu_crtc_enable, |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 246 | }; |
| 247 | |
| 248 | static int ipu_enable_vblank(struct drm_crtc *crtc) |
| 249 | { |
Lucas Stach | 411b033 | 2016-02-09 11:43:08 +0100 | [diff] [blame] | 250 | struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc); |
| 251 | |
| 252 | enable_irq(ipu_crtc->irq); |
| 253 | |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 254 | return 0; |
| 255 | } |
| 256 | |
| 257 | static void ipu_disable_vblank(struct drm_crtc *crtc) |
| 258 | { |
Lucas Stach | 411b033 | 2016-02-09 11:43:08 +0100 | [diff] [blame] | 259 | struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc); |
| 260 | |
| 261 | disable_irq_nosync(ipu_crtc->irq); |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 262 | } |
| 263 | |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 264 | static const struct imx_drm_crtc_helper_funcs ipu_crtc_helper_funcs = { |
| 265 | .enable_vblank = ipu_enable_vblank, |
| 266 | .disable_vblank = ipu_disable_vblank, |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 267 | .crtc_funcs = &ipu_crtc_funcs, |
| 268 | .crtc_helper_funcs = &ipu_helper_funcs, |
| 269 | }; |
| 270 | |
| 271 | static void ipu_put_resources(struct ipu_crtc *ipu_crtc) |
| 272 | { |
Philipp Zabel | b8d181e | 2013-10-10 16:18:45 +0200 | [diff] [blame] | 273 | if (!IS_ERR_OR_NULL(ipu_crtc->dc)) |
| 274 | ipu_dc_put(ipu_crtc->dc); |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 275 | if (!IS_ERR_OR_NULL(ipu_crtc->di)) |
| 276 | ipu_di_put(ipu_crtc->di); |
| 277 | } |
| 278 | |
| 279 | static int ipu_get_resources(struct ipu_crtc *ipu_crtc, |
| 280 | struct ipu_client_platformdata *pdata) |
| 281 | { |
| 282 | struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent); |
| 283 | int ret; |
| 284 | |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 285 | ipu_crtc->dc = ipu_dc_get(ipu, pdata->dc); |
| 286 | if (IS_ERR(ipu_crtc->dc)) { |
| 287 | ret = PTR_ERR(ipu_crtc->dc); |
| 288 | goto err_out; |
| 289 | } |
| 290 | |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 291 | ipu_crtc->di = ipu_di_get(ipu, pdata->di); |
| 292 | if (IS_ERR(ipu_crtc->di)) { |
| 293 | ret = PTR_ERR(ipu_crtc->di); |
| 294 | goto err_out; |
| 295 | } |
| 296 | |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 297 | return 0; |
| 298 | err_out: |
| 299 | ipu_put_resources(ipu_crtc); |
| 300 | |
| 301 | return ret; |
| 302 | } |
| 303 | |
| 304 | static int ipu_crtc_init(struct ipu_crtc *ipu_crtc, |
Russell King | 32266b4 | 2013-11-03 12:26:23 +0000 | [diff] [blame] | 305 | struct ipu_client_platformdata *pdata, struct drm_device *drm) |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 306 | { |
Philipp Zabel | 47b1be5 | 2013-02-20 10:57:01 +0800 | [diff] [blame] | 307 | struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent); |
Philipp Zabel | b8d181e | 2013-10-10 16:18:45 +0200 | [diff] [blame] | 308 | int dp = -EINVAL; |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 309 | int ret; |
| 310 | |
| 311 | ret = ipu_get_resources(ipu_crtc, pdata); |
| 312 | if (ret) { |
| 313 | dev_err(ipu_crtc->dev, "getting resources failed with %d.\n", |
| 314 | ret); |
| 315 | return ret; |
| 316 | } |
| 317 | |
Philipp Zabel | 4389559 | 2015-11-06 11:08:02 +0100 | [diff] [blame] | 318 | if (pdata->dp >= 0) |
| 319 | dp = IPU_DP_FLOW_SYNC_BG; |
| 320 | ipu_crtc->plane[0] = ipu_plane_init(drm, ipu, pdata->dma[0], dp, 0, |
| 321 | DRM_PLANE_TYPE_PRIMARY); |
Liu Ying | a7ed3c2 | 2015-11-06 22:42:45 +0800 | [diff] [blame] | 322 | if (IS_ERR(ipu_crtc->plane[0])) { |
| 323 | ret = PTR_ERR(ipu_crtc->plane[0]); |
| 324 | goto err_put_resources; |
| 325 | } |
Philipp Zabel | 4389559 | 2015-11-06 11:08:02 +0100 | [diff] [blame] | 326 | |
Philipp Zabel | 655b43c | 2014-03-05 10:20:52 +0100 | [diff] [blame] | 327 | ret = imx_drm_add_crtc(drm, &ipu_crtc->base, &ipu_crtc->imx_crtc, |
Philipp Zabel | 4389559 | 2015-11-06 11:08:02 +0100 | [diff] [blame] | 328 | &ipu_crtc->plane[0]->base, &ipu_crtc_helper_funcs, |
Philipp Zabel | 310944d | 2016-05-12 15:00:44 +0200 | [diff] [blame] | 329 | pdata->of_node); |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 330 | if (ret) { |
| 331 | dev_err(ipu_crtc->dev, "adding crtc failed with %d.\n", ret); |
| 332 | goto err_put_resources; |
| 333 | } |
| 334 | |
Philipp Zabel | b8d181e | 2013-10-10 16:18:45 +0200 | [diff] [blame] | 335 | ret = ipu_plane_get_resources(ipu_crtc->plane[0]); |
| 336 | if (ret) { |
| 337 | dev_err(ipu_crtc->dev, "getting plane 0 resources failed with %d.\n", |
| 338 | ret); |
| 339 | goto err_remove_crtc; |
| 340 | } |
| 341 | |
| 342 | /* If this crtc is using the DP, add an overlay plane */ |
| 343 | if (pdata->dp >= 0 && pdata->dma[1] > 0) { |
Philipp Zabel | 4389559 | 2015-11-06 11:08:02 +0100 | [diff] [blame] | 344 | ipu_crtc->plane[1] = ipu_plane_init(drm, ipu, pdata->dma[1], |
| 345 | IPU_DP_FLOW_SYNC_FG, |
| 346 | drm_crtc_mask(&ipu_crtc->base), |
| 347 | DRM_PLANE_TYPE_OVERLAY); |
Liu Ying | 33f1423 | 2016-07-08 17:40:55 +0800 | [diff] [blame] | 348 | if (IS_ERR(ipu_crtc->plane[1])) { |
Philipp Zabel | b8d181e | 2013-10-10 16:18:45 +0200 | [diff] [blame] | 349 | ipu_crtc->plane[1] = NULL; |
Liu Ying | 33f1423 | 2016-07-08 17:40:55 +0800 | [diff] [blame] | 350 | } else { |
| 351 | ret = ipu_plane_get_resources(ipu_crtc->plane[1]); |
| 352 | if (ret) { |
| 353 | dev_err(ipu_crtc->dev, "getting plane 1 " |
| 354 | "resources failed with %d.\n", ret); |
| 355 | goto err_put_plane0_res; |
| 356 | } |
| 357 | } |
Philipp Zabel | b8d181e | 2013-10-10 16:18:45 +0200 | [diff] [blame] | 358 | } |
| 359 | |
| 360 | ipu_crtc->irq = ipu_plane_irq(ipu_crtc->plane[0]); |
Philipp Zabel | 47b1be5 | 2013-02-20 10:57:01 +0800 | [diff] [blame] | 361 | ret = devm_request_irq(ipu_crtc->dev, ipu_crtc->irq, ipu_irq_handler, 0, |
| 362 | "imx_drm", ipu_crtc); |
| 363 | if (ret < 0) { |
| 364 | dev_err(ipu_crtc->dev, "irq request failed with %d.\n", ret); |
Liu Ying | 33f1423 | 2016-07-08 17:40:55 +0800 | [diff] [blame] | 365 | goto err_put_plane1_res; |
Philipp Zabel | 47b1be5 | 2013-02-20 10:57:01 +0800 | [diff] [blame] | 366 | } |
Lucas Stach | 411b033 | 2016-02-09 11:43:08 +0100 | [diff] [blame] | 367 | /* Only enable IRQ when we actually need it to trigger work. */ |
| 368 | disable_irq(ipu_crtc->irq); |
Philipp Zabel | 47b1be5 | 2013-02-20 10:57:01 +0800 | [diff] [blame] | 369 | |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 370 | return 0; |
| 371 | |
Liu Ying | 33f1423 | 2016-07-08 17:40:55 +0800 | [diff] [blame] | 372 | err_put_plane1_res: |
| 373 | if (ipu_crtc->plane[1]) |
| 374 | ipu_plane_put_resources(ipu_crtc->plane[1]); |
| 375 | err_put_plane0_res: |
Philipp Zabel | b8d181e | 2013-10-10 16:18:45 +0200 | [diff] [blame] | 376 | ipu_plane_put_resources(ipu_crtc->plane[0]); |
| 377 | err_remove_crtc: |
| 378 | imx_drm_remove_crtc(ipu_crtc->imx_crtc); |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 379 | err_put_resources: |
| 380 | ipu_put_resources(ipu_crtc); |
| 381 | |
| 382 | return ret; |
| 383 | } |
| 384 | |
Russell King | 17b5001 | 2013-11-03 11:23:34 +0000 | [diff] [blame] | 385 | static int ipu_drm_bind(struct device *dev, struct device *master, void *data) |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 386 | { |
Russell King | 17b5001 | 2013-11-03 11:23:34 +0000 | [diff] [blame] | 387 | struct ipu_client_platformdata *pdata = dev->platform_data; |
Russell King | 32266b4 | 2013-11-03 12:26:23 +0000 | [diff] [blame] | 388 | struct drm_device *drm = data; |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 389 | struct ipu_crtc *ipu_crtc; |
| 390 | int ret; |
| 391 | |
Russell King | 17b5001 | 2013-11-03 11:23:34 +0000 | [diff] [blame] | 392 | ipu_crtc = devm_kzalloc(dev, sizeof(*ipu_crtc), GFP_KERNEL); |
| 393 | if (!ipu_crtc) |
| 394 | return -ENOMEM; |
| 395 | |
| 396 | ipu_crtc->dev = dev; |
| 397 | |
Russell King | 32266b4 | 2013-11-03 12:26:23 +0000 | [diff] [blame] | 398 | ret = ipu_crtc_init(ipu_crtc, pdata, drm); |
Russell King | 17b5001 | 2013-11-03 11:23:34 +0000 | [diff] [blame] | 399 | if (ret) |
| 400 | return ret; |
| 401 | |
| 402 | dev_set_drvdata(dev, ipu_crtc); |
| 403 | |
| 404 | return 0; |
| 405 | } |
| 406 | |
| 407 | static void ipu_drm_unbind(struct device *dev, struct device *master, |
| 408 | void *data) |
| 409 | { |
| 410 | struct ipu_crtc *ipu_crtc = dev_get_drvdata(dev); |
| 411 | |
| 412 | imx_drm_remove_crtc(ipu_crtc->imx_crtc); |
| 413 | |
Russell King | 17b5001 | 2013-11-03 11:23:34 +0000 | [diff] [blame] | 414 | ipu_put_resources(ipu_crtc); |
Liu Ying | 33f1423 | 2016-07-08 17:40:55 +0800 | [diff] [blame] | 415 | if (ipu_crtc->plane[1]) |
| 416 | ipu_plane_put_resources(ipu_crtc->plane[1]); |
| 417 | ipu_plane_put_resources(ipu_crtc->plane[0]); |
Russell King | 17b5001 | 2013-11-03 11:23:34 +0000 | [diff] [blame] | 418 | } |
| 419 | |
| 420 | static const struct component_ops ipu_crtc_ops = { |
| 421 | .bind = ipu_drm_bind, |
| 422 | .unbind = ipu_drm_unbind, |
| 423 | }; |
| 424 | |
| 425 | static int ipu_drm_probe(struct platform_device *pdev) |
| 426 | { |
Philipp Zabel | 655b43c | 2014-03-05 10:20:52 +0100 | [diff] [blame] | 427 | struct device *dev = &pdev->dev; |
Russell King | 17b5001 | 2013-11-03 11:23:34 +0000 | [diff] [blame] | 428 | int ret; |
| 429 | |
Philipp Zabel | 655b43c | 2014-03-05 10:20:52 +0100 | [diff] [blame] | 430 | if (!dev->platform_data) |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 431 | return -EINVAL; |
| 432 | |
Philipp Zabel | 655b43c | 2014-03-05 10:20:52 +0100 | [diff] [blame] | 433 | ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32)); |
Russell King | 4cdbb4f | 2013-06-10 16:56:16 +0100 | [diff] [blame] | 434 | if (ret) |
| 435 | return ret; |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 436 | |
Philipp Zabel | 655b43c | 2014-03-05 10:20:52 +0100 | [diff] [blame] | 437 | return component_add(dev, &ipu_crtc_ops); |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 438 | } |
| 439 | |
Bill Pemberton | 8aa1be4 | 2012-11-19 13:26:38 -0500 | [diff] [blame] | 440 | static int ipu_drm_remove(struct platform_device *pdev) |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 441 | { |
Russell King | 17b5001 | 2013-11-03 11:23:34 +0000 | [diff] [blame] | 442 | component_del(&pdev->dev, &ipu_crtc_ops); |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 443 | return 0; |
| 444 | } |
| 445 | |
| 446 | static struct platform_driver ipu_drm_driver = { |
| 447 | .driver = { |
| 448 | .name = "imx-ipuv3-crtc", |
| 449 | }, |
| 450 | .probe = ipu_drm_probe, |
Bill Pemberton | 99c28f1 | 2012-11-19 13:20:51 -0500 | [diff] [blame] | 451 | .remove = ipu_drm_remove, |
Sascha Hauer | f326f79 | 2012-09-21 10:07:50 +0200 | [diff] [blame] | 452 | }; |
| 453 | module_platform_driver(ipu_drm_driver); |
| 454 | |
| 455 | MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>"); |
| 456 | MODULE_DESCRIPTION(DRIVER_DESC); |
| 457 | MODULE_LICENSE("GPL"); |
Fabio Estevam | ce9c1ce | 2013-08-18 21:40:06 -0300 | [diff] [blame] | 458 | MODULE_ALIAS("platform:imx-ipuv3-crtc"); |