sunxi_lcdc.c revision 1.8
1 /* $NetBSD: sunxi_lcdc.c,v 1.8 2021/01/15 22:47:32 jmcneill Exp $ */ 2 3 /*- 4 * Copyright (c) 2019 Jared D. McNeill <jmcneill (at) invisible.ca> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __KERNEL_RCSID(0, "$NetBSD: sunxi_lcdc.c,v 1.8 2021/01/15 22:47:32 jmcneill Exp $"); 31 32 #include <sys/param.h> 33 #include <sys/bus.h> 34 #include <sys/device.h> 35 #include <sys/intr.h> 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #include <sys/conf.h> 39 40 #include <drm/drmP.h> 41 #include <drm/drm_crtc_helper.h> 42 43 #include <dev/fdt/fdtvar.h> 44 #include <dev/fdt/fdt_port.h> 45 46 #include <arm/sunxi/sunxi_drm.h> 47 48 #define TCON_GCTL_REG 0x000 49 #define TCON_GCTL_TCON_EN __BIT(31) 50 #define TCON_GCTL_GAMMA_EN __BIT(30) 51 #define TCON_GCTL_IO_MAP_SEL __BIT(0) 52 #define TCON_GINT0_REG 0x004 53 #define TCON_GINT0_TCON0_VB_INT_EN __BIT(31) 54 #define TCON_GINT0_TCON1_VB_INT_EN __BIT(30) 55 #define TCON_GINT0_TCON0_VB_INT_FLAG __BIT(15) 56 #define TCON_GINT0_TCON1_VB_INT_FLAG __BIT(14) 57 #define TCON_GINT1_REG 0x008 58 #define TCON_GINT1_TCON1_LINE_INT_NUM __BITS(11,0) 59 60 #define TCON0_CTL_REG 0x040 61 #define TCON0_CTL_TCON0_EN __BIT(31) 62 #define TCON0_CTL_START_DELAY __BITS(8,4) 63 #define TCON0_CTL_TCON0_SRC_SEL __BITS(2,0) 64 #define TCON0_DCLK_REG 0x044 65 #define TCON0_DCLK_EN __BITS(31,28) 66 #define TCON0_DCLK_DIV __BITS(6,0) 67 #define TCON0_BASIC0_REG 0x048 68 #define TCON0_BASIC1_REG 0x04c 69 #define TCON0_BASIC2_REG 0x050 70 #define TCON0_BASIC3_REG 0x054 71 #define TCON0_IO_POL_REG 0x088 72 #define TCON0_IO_POL_IO_OUTPUT_SEL __BIT(31) 73 #define TCON0_IO_POL_DCLK_SEL __BITS(30,28) 74 #define TCON0_IO_POL_IO3_INV __BIT(27) 75 #define TCON0_IO_POL_IO2_INV __BIT(26) 76 #define TCON0_IO_POL_IO1_INV __BIT(25) 77 #define TCON0_IO_POL_IO0_INV __BIT(24) 78 #define TCON0_IO_POL_DATA_INV __BITS(23,0) 79 #define TCON0_IO_TRI_REG 0x08c 80 81 #define TCON1_CTL_REG 0x090 82 #define TCON1_CTL_TCON1_EN __BIT(31) 83 #define TCON1_CTL_START_DELAY __BITS(8,4) 84 #define TCON1_CTL_TCON1_SRC_SEL __BITS(1,0) 85 #define TCON1_BASIC0_REG 0x094 86 #define TCON1_BASIC1_REG 0x098 87 #define TCON1_BASIC2_REG 0x09c 88 #define TCON1_BASIC3_REG 0x0a0 89 #define TCON1_BASIC4_REG 0x0a4 90 #define TCON1_BASIC5_REG 0x0a8 91 #define TCON1_IO_POL_REG 0x0f0 92 #define TCON1_IO_POL_IO3_INV __BIT(27) 93 #define TCON1_IO_POL_IO2_INV __BIT(26) 94 #define TCON1_IO_POL_IO1_INV __BIT(25) 95 #define TCON1_IO_POL_IO0_INV __BIT(24) 96 #define TCON1_IO_POL_DATA_INV __BITS(23,0) 97 #define TCON1_IO_TRI_REG 0x0f4 98 99 enum { 100 TCON_PORT_INPUT = 0, 101 TCON_PORT_OUTPUT = 1, 102 }; 103 104 enum tcon_type { 105 TYPE_TCON0, 106 TYPE_TCON1, 107 }; 108 109 static const struct of_compat_data compat_data[] = { 110 { "allwinner,sun8i-h3-tcon-tv", TYPE_TCON1 }, 111 { "allwinner,sun50i-a64-tcon-lcd", TYPE_TCON0 }, 112 { "allwinner,sun50i-a64-tcon-tv", TYPE_TCON1 }, 113 { NULL } 114 }; 115 116 struct sunxi_lcdc_softc; 117 118 struct sunxi_lcdc_encoder { 119 struct drm_encoder base; 120 struct sunxi_lcdc_softc *sc; 121 struct drm_display_mode curmode; 122 }; 123 124 struct sunxi_lcdc_softc { 125 device_t sc_dev; 126 bus_space_tag_t sc_bst; 127 bus_space_handle_t sc_bsh; 128 int sc_phandle; 129 130 enum tcon_type sc_type; 131 132 struct clk *sc_clk_ch[2]; 133 134 struct sunxi_lcdc_encoder sc_encoder; 135 struct drm_connector sc_connector; 136 137 struct fdt_device_ports sc_ports; 138 139 uint32_t sc_vbl_counter; 140 }; 141 142 #define to_sunxi_lcdc_encoder(x) container_of(x, struct sunxi_lcdc_encoder, base) 143 144 #define TCON_READ(sc, reg) \ 145 bus_space_read_4((sc)->sc_bst, (sc)->sc_bsh, (reg)) 146 #define TCON_WRITE(sc, reg, val) \ 147 bus_space_write_4((sc)->sc_bst, (sc)->sc_bsh, (reg), (val)) 148 149 static void 150 sunxi_lcdc_destroy(struct drm_encoder *encoder) 151 { 152 } 153 154 static const struct drm_encoder_funcs sunxi_lcdc_funcs = { 155 .destroy = sunxi_lcdc_destroy, 156 }; 157 158 static void 159 sunxi_lcdc_tcon_dpms(struct drm_encoder *encoder, int mode) 160 { 161 } 162 163 static bool 164 sunxi_lcdc_tcon_mode_fixup(struct drm_encoder *encoder, 165 const struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) 166 { 167 return true; 168 } 169 170 static void 171 sunxi_lcdc_tcon_mode_set(struct drm_encoder *encoder, 172 struct drm_display_mode *mode, struct drm_display_mode *adjusted_mode) 173 { 174 struct sunxi_lcdc_encoder *lcdc_encoder = to_sunxi_lcdc_encoder(encoder); 175 176 lcdc_encoder->curmode = *adjusted_mode; 177 } 178 179 static void 180 sunxi_lcdc_tcon0_prepare(struct drm_encoder *encoder) 181 { 182 struct sunxi_lcdc_encoder *lcdc_encoder = to_sunxi_lcdc_encoder(encoder); 183 struct sunxi_lcdc_softc * const sc = lcdc_encoder->sc; 184 uint32_t val; 185 186 val = TCON_READ(sc, TCON_GCTL_REG); 187 val |= TCON_GCTL_TCON_EN; 188 val &= ~TCON_GCTL_IO_MAP_SEL; 189 TCON_WRITE(sc, TCON_GCTL_REG, val); 190 191 TCON_WRITE(sc, TCON0_IO_TRI_REG, 0); 192 } 193 194 static void 195 sunxi_lcdc_tcon1_prepare(struct drm_encoder *encoder) 196 { 197 struct sunxi_lcdc_encoder *lcdc_encoder = to_sunxi_lcdc_encoder(encoder); 198 struct sunxi_lcdc_softc * const sc = lcdc_encoder->sc; 199 uint32_t val; 200 201 val = TCON_READ(sc, TCON_GCTL_REG); 202 val |= TCON_GCTL_TCON_EN; 203 TCON_WRITE(sc, TCON_GCTL_REG, val); 204 205 TCON_WRITE(sc, TCON1_IO_POL_REG, 0); 206 TCON_WRITE(sc, TCON1_IO_TRI_REG, 0xffffffff); 207 } 208 209 static void 210 sunxi_lcdc_tcon0_commit(struct drm_encoder *encoder) 211 { 212 struct sunxi_lcdc_encoder *lcdc_encoder = to_sunxi_lcdc_encoder(encoder); 213 struct sunxi_lcdc_softc * const sc = lcdc_encoder->sc; 214 struct drm_display_mode *mode = &lcdc_encoder->curmode; 215 uint32_t val; 216 int error; 217 218 const u_int interlace_p = (mode->flags & DRM_MODE_FLAG_INTERLACE) != 0; 219 const u_int hspw = mode->crtc_hsync_end - mode->crtc_hsync_start; 220 const u_int hbp = mode->crtc_htotal - mode->crtc_hsync_start; 221 const u_int vspw = mode->crtc_vsync_end - mode->crtc_vsync_start; 222 const u_int vbp = mode->crtc_vtotal - mode->crtc_vsync_start; 223 const u_int vblank_len = (mode->crtc_vtotal - mode->crtc_vdisplay) >> interlace_p; 224 const u_int start_delay = uimin(vblank_len, 30); 225 226 val = TCON0_CTL_TCON0_EN | 227 __SHIFTIN(start_delay, TCON0_CTL_START_DELAY); 228 TCON_WRITE(sc, TCON0_CTL_REG, val); 229 230 TCON_WRITE(sc, TCON0_BASIC0_REG, ((mode->crtc_hdisplay - 1) << 16) | (mode->crtc_vdisplay - 1)); 231 TCON_WRITE(sc, TCON0_BASIC1_REG, ((mode->crtc_htotal - 1) << 16) | (hbp - 1)); 232 TCON_WRITE(sc, TCON0_BASIC2_REG, ((mode->crtc_vtotal * 2) << 16) | (vbp - 1)); 233 TCON_WRITE(sc, TCON0_BASIC3_REG, ((hspw - 1) << 16) | (vspw - 1)); 234 235 val = TCON_READ(sc, TCON0_IO_POL_REG); 236 val &= ~(TCON0_IO_POL_IO3_INV|TCON0_IO_POL_IO2_INV| 237 TCON0_IO_POL_IO1_INV|TCON0_IO_POL_IO0_INV| 238 TCON0_IO_POL_DATA_INV); 239 if ((mode->flags & DRM_MODE_FLAG_PHSYNC) == 0) 240 val |= TCON0_IO_POL_IO1_INV; 241 if ((mode->flags & DRM_MODE_FLAG_PVSYNC) == 0) 242 val |= TCON0_IO_POL_IO0_INV; 243 TCON_WRITE(sc, TCON0_IO_POL_REG, val); 244 245 if (sc->sc_clk_ch[0] != NULL) { 246 error = clk_set_rate(sc->sc_clk_ch[0], mode->crtc_clock * 1000); 247 if (error != 0) { 248 device_printf(sc->sc_dev, "failed to set CH0 PLL rate to %u Hz: %d\n", 249 mode->crtc_clock * 1000, error); 250 return; 251 } 252 error = clk_enable(sc->sc_clk_ch[0]); 253 if (error != 0) { 254 device_printf(sc->sc_dev, "failed to enable CH0 PLL: %d\n", error); 255 return; 256 } 257 } else { 258 device_printf(sc->sc_dev, "no CH0 PLL configured\n"); 259 } 260 } 261 262 static void 263 sunxi_lcdc_tcon1_commit(struct drm_encoder *encoder) 264 { 265 struct sunxi_lcdc_encoder *lcdc_encoder = to_sunxi_lcdc_encoder(encoder); 266 struct sunxi_lcdc_softc * const sc = lcdc_encoder->sc; 267 struct drm_display_mode *mode = &lcdc_encoder->curmode; 268 uint32_t val; 269 int error; 270 271 const u_int interlace_p = (mode->flags & DRM_MODE_FLAG_INTERLACE) != 0; 272 const u_int hspw = mode->crtc_hsync_end - mode->crtc_hsync_start; 273 const u_int hbp = mode->crtc_htotal - mode->crtc_hsync_start; 274 const u_int vspw = mode->crtc_vsync_end - mode->crtc_vsync_start; 275 const u_int vbp = mode->crtc_vtotal - mode->crtc_vsync_start; 276 const u_int vblank_len = ((mode->crtc_vtotal - mode->crtc_vdisplay) >> interlace_p) - 2; 277 const u_int start_delay = uimin(vblank_len, 30); 278 279 val = TCON1_CTL_TCON1_EN | 280 __SHIFTIN(start_delay, TCON1_CTL_START_DELAY); 281 TCON_WRITE(sc, TCON1_CTL_REG, val); 282 283 TCON_WRITE(sc, TCON1_BASIC0_REG, ((mode->crtc_hdisplay - 1) << 16) | (mode->crtc_vdisplay - 1)); 284 TCON_WRITE(sc, TCON1_BASIC1_REG, ((mode->crtc_hdisplay - 1) << 16) | (mode->crtc_vdisplay - 1)); 285 TCON_WRITE(sc, TCON1_BASIC2_REG, ((mode->crtc_hdisplay - 1) << 16) | (mode->crtc_vdisplay - 1)); 286 TCON_WRITE(sc, TCON1_BASIC3_REG, ((mode->crtc_htotal - 1) << 16) | (hbp - 1)); 287 TCON_WRITE(sc, TCON1_BASIC4_REG, ((mode->crtc_vtotal * 2) << 16) | (vbp - 1)); 288 TCON_WRITE(sc, TCON1_BASIC5_REG, ((hspw - 1) << 16) | (vspw - 1)); 289 290 TCON_WRITE(sc, TCON_GINT1_REG, 291 __SHIFTIN(start_delay + 2, TCON_GINT1_TCON1_LINE_INT_NUM)); 292 293 if (sc->sc_clk_ch[1] != NULL) { 294 error = clk_set_rate(sc->sc_clk_ch[1], mode->crtc_clock * 1000); 295 if (error != 0) { 296 device_printf(sc->sc_dev, "failed to set CH1 PLL rate to %u Hz: %d\n", 297 mode->crtc_clock * 1000, error); 298 return; 299 } 300 error = clk_enable(sc->sc_clk_ch[1]); 301 if (error != 0) { 302 device_printf(sc->sc_dev, "failed to enable CH1 PLL: %d\n", error); 303 return; 304 } 305 } else { 306 device_printf(sc->sc_dev, "no CH1 PLL configured\n"); 307 } 308 } 309 310 static const struct drm_encoder_helper_funcs sunxi_lcdc_tcon0_helper_funcs = { 311 .dpms = sunxi_lcdc_tcon_dpms, 312 .mode_fixup = sunxi_lcdc_tcon_mode_fixup, 313 .prepare = sunxi_lcdc_tcon0_prepare, 314 .commit = sunxi_lcdc_tcon0_commit, 315 .mode_set = sunxi_lcdc_tcon_mode_set, 316 }; 317 318 static const struct drm_encoder_helper_funcs sunxi_lcdc_tcon1_helper_funcs = { 319 .dpms = sunxi_lcdc_tcon_dpms, 320 .mode_fixup = sunxi_lcdc_tcon_mode_fixup, 321 .prepare = sunxi_lcdc_tcon1_prepare, 322 .commit = sunxi_lcdc_tcon1_commit, 323 .mode_set = sunxi_lcdc_tcon_mode_set, 324 }; 325 326 static int 327 sunxi_lcdc_encoder_mode(struct fdt_endpoint *out_ep) 328 { 329 struct fdt_endpoint *remote_ep = fdt_endpoint_remote(out_ep); 330 331 if (remote_ep == NULL) 332 return DRM_MODE_ENCODER_NONE; 333 334 switch (fdt_endpoint_type(remote_ep)) { 335 case EP_DRM_BRIDGE: 336 return DRM_MODE_ENCODER_TMDS; 337 case EP_DRM_PANEL: 338 return DRM_MODE_ENCODER_LVDS; 339 default: 340 return DRM_MODE_ENCODER_NONE; 341 } 342 } 343 344 static uint32_t 345 sunxi_lcdc_get_vblank_counter(void *priv) 346 { 347 struct sunxi_lcdc_softc * const sc = priv; 348 349 return sc->sc_vbl_counter; 350 } 351 352 static void 353 sunxi_lcdc_enable_vblank(void *priv) 354 { 355 struct sunxi_lcdc_softc * const sc = priv; 356 const int crtc_index = ffs32(sc->sc_encoder.base.possible_crtcs) - 1; 357 358 if (crtc_index == 0) 359 TCON_WRITE(sc, TCON_GINT0_REG, TCON_GINT0_TCON0_VB_INT_EN); 360 else 361 TCON_WRITE(sc, TCON_GINT0_REG, TCON_GINT0_TCON1_VB_INT_EN); 362 } 363 364 static void 365 sunxi_lcdc_disable_vblank(void *priv) 366 { 367 struct sunxi_lcdc_softc * const sc = priv; 368 369 TCON_WRITE(sc, TCON_GINT0_REG, 0); 370 } 371 372 static void 373 sunxi_lcdc_setup_vblank(struct sunxi_lcdc_softc *sc) 374 { 375 const int crtc_index = ffs32(sc->sc_encoder.base.possible_crtcs) - 1; 376 struct drm_device *ddev = sc->sc_encoder.base.dev; 377 struct sunxi_drm_softc *drm_sc; 378 379 KASSERT(ddev != NULL); 380 381 drm_sc = device_private(ddev->dev); 382 drm_sc->sc_vbl[crtc_index].priv = sc; 383 drm_sc->sc_vbl[crtc_index].get_vblank_counter = sunxi_lcdc_get_vblank_counter; 384 drm_sc->sc_vbl[crtc_index].enable_vblank = sunxi_lcdc_enable_vblank; 385 drm_sc->sc_vbl[crtc_index].disable_vblank = sunxi_lcdc_disable_vblank; 386 } 387 388 static int 389 sunxi_lcdc_ep_activate(device_t dev, struct fdt_endpoint *ep, bool activate) 390 { 391 struct sunxi_lcdc_softc * const sc = device_private(dev); 392 struct fdt_endpoint *in_ep = fdt_endpoint_remote(ep); 393 struct fdt_endpoint *out_ep; 394 struct drm_crtc *crtc; 395 396 if (!activate) 397 return EINVAL; 398 399 if (fdt_endpoint_port_index(ep) != TCON_PORT_INPUT) 400 return EINVAL; 401 402 if (fdt_endpoint_type(in_ep) != EP_DRM_CRTC) 403 return EINVAL; 404 405 crtc = fdt_endpoint_get_data(in_ep); 406 407 sc->sc_encoder.sc = sc; 408 sc->sc_encoder.base.possible_crtcs = 1 << drm_crtc_index(crtc); 409 410 out_ep = fdt_endpoint_get_from_index(&sc->sc_ports, TCON_PORT_OUTPUT, 0); 411 if (out_ep != NULL) { 412 drm_encoder_init(crtc->dev, &sc->sc_encoder.base, &sunxi_lcdc_funcs, 413 sunxi_lcdc_encoder_mode(out_ep)); 414 drm_encoder_helper_add(&sc->sc_encoder.base, &sunxi_lcdc_tcon0_helper_funcs); 415 416 sunxi_lcdc_setup_vblank(sc); 417 418 return fdt_endpoint_activate(out_ep, activate); 419 } 420 421 out_ep = fdt_endpoint_get_from_index(&sc->sc_ports, TCON_PORT_OUTPUT, 1); 422 if (out_ep != NULL) { 423 drm_encoder_init(crtc->dev, &sc->sc_encoder.base, &sunxi_lcdc_funcs, 424 sunxi_lcdc_encoder_mode(out_ep)); 425 drm_encoder_helper_add(&sc->sc_encoder.base, &sunxi_lcdc_tcon1_helper_funcs); 426 427 sunxi_lcdc_setup_vblank(sc); 428 429 return fdt_endpoint_activate(out_ep, activate); 430 } 431 432 return ENXIO; 433 } 434 435 static void * 436 sunxi_lcdc_ep_get_data(device_t dev, struct fdt_endpoint *ep) 437 { 438 struct sunxi_lcdc_softc * const sc = device_private(dev); 439 440 return &sc->sc_encoder; 441 } 442 443 static int 444 sunxi_lcdc_intr(void *priv) 445 { 446 struct sunxi_lcdc_softc * const sc = priv; 447 uint32_t val; 448 int rv = 0; 449 450 const int crtc_index = ffs32(sc->sc_encoder.base.possible_crtcs) - 1; 451 const uint32_t status_mask = crtc_index == 0 ? 452 TCON_GINT0_TCON0_VB_INT_FLAG : TCON_GINT0_TCON1_VB_INT_FLAG; 453 454 val = TCON_READ(sc, TCON_GINT0_REG); 455 if ((val & status_mask) != 0) { 456 TCON_WRITE(sc, TCON_GINT0_REG, val & ~status_mask); 457 atomic_inc_32(&sc->sc_vbl_counter); 458 drm_handle_vblank(sc->sc_encoder.base.dev, crtc_index); 459 rv = 1; 460 } 461 462 return rv; 463 } 464 465 static int 466 sunxi_lcdc_match(device_t parent, cfdata_t cf, void *aux) 467 { 468 struct fdt_attach_args * const faa = aux; 469 470 return of_match_compat_data(faa->faa_phandle, compat_data); 471 } 472 473 static void 474 sunxi_lcdc_attach(device_t parent, device_t self, void *aux) 475 { 476 struct sunxi_lcdc_softc * const sc = device_private(self); 477 struct fdt_attach_args * const faa = aux; 478 const int phandle = faa->faa_phandle; 479 struct fdtbus_reset *rst; 480 char intrstr[128]; 481 struct clk *clk; 482 bus_addr_t addr; 483 bus_size_t size; 484 void *ih; 485 486 if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) { 487 aprint_error(": couldn't get registers\n"); 488 return; 489 } 490 491 if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) { 492 aprint_error(": couldn't decode interrupt\n"); 493 return; 494 } 495 496 rst = fdtbus_reset_get(phandle, "lcd"); 497 if (rst == NULL || fdtbus_reset_deassert(rst) != 0) { 498 aprint_error(": couldn't de-assert reset\n"); 499 return; 500 } 501 502 clk = fdtbus_clock_get(phandle, "ahb"); 503 if (clk == NULL || clk_enable(clk) != 0) { 504 aprint_error(": couldn't enable bus clock\n"); 505 return; 506 } 507 508 sc->sc_dev = self; 509 sc->sc_bst = faa->faa_bst; 510 if (bus_space_map(sc->sc_bst, addr, size, 0, &sc->sc_bsh) != 0) { 511 aprint_error(": couldn't map registers\n"); 512 return; 513 } 514 sc->sc_phandle = faa->faa_phandle; 515 sc->sc_type = of_search_compatible(phandle, compat_data)->data; 516 sc->sc_clk_ch[0] = fdtbus_clock_get(phandle, "tcon-ch0"); 517 sc->sc_clk_ch[1] = fdtbus_clock_get(phandle, "tcon-ch1"); 518 519 aprint_naive("\n"); 520 switch (sc->sc_type) { 521 case TYPE_TCON0: 522 aprint_normal(": TCON0\n"); 523 break; 524 case TYPE_TCON1: 525 aprint_normal(": TCON1\n"); 526 break; 527 } 528 529 sc->sc_ports.dp_ep_activate = sunxi_lcdc_ep_activate; 530 sc->sc_ports.dp_ep_get_data = sunxi_lcdc_ep_get_data; 531 fdt_ports_register(&sc->sc_ports, self, phandle, EP_DRM_ENCODER); 532 533 ih = fdtbus_intr_establish_xname(phandle, 0, IPL_VM, FDT_INTR_MPSAFE, 534 sunxi_lcdc_intr, sc, device_xname(self)); 535 if (ih == NULL) { 536 aprint_error_dev(self, "couldn't establish interrupt on %s\n", 537 intrstr); 538 return; 539 } 540 aprint_normal_dev(self, "interrupting on %s\n", intrstr); 541 } 542 543 CFATTACH_DECL_NEW(sunxi_lcdc, sizeof(struct sunxi_lcdc_softc), 544 sunxi_lcdc_match, sunxi_lcdc_attach, NULL, NULL); 545
Indexes created Thu Sep 25 02:09:54 GMT 2025