at91_pinctrl.c revision 295832
1270025Simp/*- 2270025Simp * Copyright (c) 2014 Warner Losh. All rights reserved. 3270025Simp * 4270025Simp * Redistribution and use in source and binary forms, with or without 5270025Simp * modification, are permitted provided that the following conditions 6270025Simp * are met: 7270025Simp * 1. Redistributions of source code must retain the above copyright 8270025Simp * notice, this list of conditions and the following disclaimer. 9270025Simp * 2. Redistributions in binary form must reproduce the above copyright 10270025Simp * notice, this list of conditions and the following disclaimer in the 11270025Simp * documentation and/or other materials provided with the distribution. 12270025Simp * 13270025Simp * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14270025Simp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15270025Simp * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16270025Simp * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17270025Simp * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18270025Simp * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19270025Simp * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20270025Simp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21270025Simp * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22270025Simp * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23270025Simp * SUCH DAMAGE. 24270025Simp */ 25270025Simp 26270025Simp#include <sys/cdefs.h> 27270025Simp__FBSDID("$FreeBSD: head/sys/arm/at91/at91_pinctrl.c 295832 2016-02-20 01:32:58Z jhibbits $"); 28270025Simp 29270025Simp#include <sys/param.h> 30270025Simp#include <sys/bus.h> 31270025Simp#include <sys/kernel.h> 32270025Simp#include <sys/module.h> 33270025Simp#include <sys/resource.h> 34270025Simp#include <sys/systm.h> 35270025Simp#include <sys/rman.h> 36270025Simp 37270025Simp#include <machine/bus.h> 38270025Simp 39270025Simp#include <arm/at91/at91var.h> 40270025Simp#include <arm/at91/at91_piovar.h> 41270025Simp 42270025Simp#include <dev/fdt/fdt_common.h> 43271548Sian#include <dev/fdt/fdt_pinctrl.h> 44270025Simp#include <dev/ofw/openfirm.h> 45270025Simp#include <dev/ofw/ofw_bus.h> 46270025Simp#include <dev/ofw/ofw_bus_subr.h> 47270025Simp 48270025Simp#define BUS_PASS_PINMUX (BUS_PASS_INTERRUPT + 1) 49270025Simp 50270025Simpstruct pinctrl_range { 51270025Simp uint64_t bus; 52270025Simp uint64_t host; 53270025Simp uint64_t size; 54270025Simp}; 55270025Simp 56270025Simpstruct pinctrl_softc { 57270025Simp device_t dev; 58270025Simp phandle_t node; 59270025Simp 60270025Simp struct pinctrl_range *ranges; 61270025Simp int nranges; 62270025Simp 63270025Simp pcell_t acells, scells; 64270025Simp int done_pinmux; 65270025Simp}; 66270025Simp 67270025Simpstruct pinctrl_devinfo { 68270025Simp struct ofw_bus_devinfo obdinfo; 69270025Simp struct resource_list rl; 70270025Simp}; 71270025Simp 72270025Simpstatic int 73270025Simpat91_pinctrl_probe(device_t dev) 74270025Simp{ 75270025Simp 76270025Simp if (!ofw_bus_is_compatible(dev, "atmel,at91rm9200-pinctrl")) 77270025Simp return (ENXIO); 78270025Simp device_set_desc(dev, "pincontrol bus"); 79270025Simp return (0); 80270025Simp} 81270025Simp 82270025Simp/* XXX Make this a subclass of simplebus */ 83270025Simp 84270025Simpstatic struct pinctrl_devinfo * 85270025Simpat91_pinctrl_setup_dinfo(device_t dev, phandle_t node) 86270025Simp{ 87270025Simp struct pinctrl_softc *sc; 88270025Simp struct pinctrl_devinfo *ndi; 89270025Simp uint32_t *reg, *intr, icells; 90270025Simp uint64_t phys, size; 91270025Simp phandle_t iparent; 92270025Simp int i, j, k; 93270025Simp int nintr; 94270025Simp int nreg; 95270025Simp 96270025Simp sc = device_get_softc(dev); 97270025Simp 98270025Simp ndi = malloc(sizeof(*ndi), M_DEVBUF, M_WAITOK | M_ZERO); 99270025Simp if (ofw_bus_gen_setup_devinfo(&ndi->obdinfo, node) != 0) { 100270025Simp free(ndi, M_DEVBUF); 101270025Simp return (NULL); 102270025Simp } 103270025Simp 104270025Simp resource_list_init(&ndi->rl); 105270025Simp nreg = OF_getencprop_alloc(node, "reg", sizeof(*reg), (void **)®); 106270025Simp if (nreg == -1) 107270025Simp nreg = 0; 108270025Simp if (nreg % (sc->acells + sc->scells) != 0) { 109270025Simp// if (bootverbose) 110270025Simp device_printf(dev, "Malformed reg property on <%s>\n", 111270025Simp ndi->obdinfo.obd_name); 112270025Simp nreg = 0; 113270025Simp } 114270025Simp 115270025Simp for (i = 0, k = 0; i < nreg; i += sc->acells + sc->scells, k++) { 116270025Simp phys = size = 0; 117270025Simp for (j = 0; j < sc->acells; j++) { 118270025Simp phys <<= 32; 119270025Simp phys |= reg[i + j]; 120270025Simp } 121270025Simp for (j = 0; j < sc->scells; j++) { 122270025Simp size <<= 32; 123270025Simp size |= reg[i + sc->acells + j]; 124270025Simp } 125270025Simp 126270025Simp resource_list_add(&ndi->rl, SYS_RES_MEMORY, k, 127270025Simp phys, phys + size - 1, size); 128270025Simp } 129270025Simp free(reg, M_OFWPROP); 130270025Simp 131270025Simp nintr = OF_getencprop_alloc(node, "interrupts", sizeof(*intr), 132270025Simp (void **)&intr); 133270025Simp if (nintr > 0) { 134270025Simp if (OF_searchencprop(node, "interrupt-parent", &iparent, 135270025Simp sizeof(iparent)) == -1) { 136270025Simp device_printf(dev, "No interrupt-parent found, " 137270025Simp "assuming direct parent\n"); 138270025Simp iparent = OF_parent(node); 139270025Simp } 140270945Sian if (OF_searchencprop(OF_node_from_xref(iparent), 141270025Simp "#interrupt-cells", &icells, sizeof(icells)) == -1) { 142271104Simp device_printf(dev, "Missing #interrupt-cells property," 143271104Simp " assuming <1>\n"); 144270025Simp icells = 1; 145270025Simp } 146270025Simp if (icells < 1 || icells > nintr) { 147270025Simp device_printf(dev, "Invalid #interrupt-cells property " 148270025Simp "value <%d>, assuming <1>\n", icells); 149270025Simp icells = 1; 150270025Simp } 151270025Simp for (i = 0, k = 0; i < nintr; i += icells, k++) { 152270025Simp intr[i] = ofw_bus_map_intr(dev, iparent, icells, 153270025Simp &intr[i]); 154270025Simp resource_list_add(&ndi->rl, SYS_RES_IRQ, k, intr[i], 155270025Simp intr[i], 1); 156270025Simp } 157270025Simp free(intr, M_OFWPROP); 158270025Simp } 159270025Simp 160270025Simp return (ndi); 161270025Simp} 162270025Simp 163270025Simpstatic int 164270025Simpat91_pinctrl_fill_ranges(phandle_t node, struct pinctrl_softc *sc) 165270025Simp{ 166270025Simp int host_address_cells; 167270025Simp cell_t *base_ranges; 168270025Simp ssize_t nbase_ranges; 169270025Simp int err; 170270025Simp int i, j, k; 171270025Simp 172270025Simp err = OF_searchencprop(OF_parent(node), "#address-cells", 173270025Simp &host_address_cells, sizeof(host_address_cells)); 174270025Simp if (err <= 0) 175270025Simp return (-1); 176270025Simp 177270025Simp nbase_ranges = OF_getproplen(node, "ranges"); 178270025Simp if (nbase_ranges < 0) 179270025Simp return (-1); 180270025Simp sc->nranges = nbase_ranges / sizeof(cell_t) / 181270025Simp (sc->acells + host_address_cells + sc->scells); 182270025Simp if (sc->nranges == 0) 183270025Simp return (0); 184270025Simp 185270025Simp sc->ranges = malloc(sc->nranges * sizeof(sc->ranges[0]), 186270025Simp M_DEVBUF, M_WAITOK); 187270025Simp base_ranges = malloc(nbase_ranges, M_DEVBUF, M_WAITOK); 188270025Simp OF_getencprop(node, "ranges", base_ranges, nbase_ranges); 189270025Simp 190270025Simp for (i = 0, j = 0; i < sc->nranges; i++) { 191270025Simp sc->ranges[i].bus = 0; 192270025Simp for (k = 0; k < sc->acells; k++) { 193270025Simp sc->ranges[i].bus <<= 32; 194270025Simp sc->ranges[i].bus |= base_ranges[j++]; 195270025Simp } 196270025Simp sc->ranges[i].host = 0; 197270025Simp for (k = 0; k < host_address_cells; k++) { 198270025Simp sc->ranges[i].host <<= 32; 199270025Simp sc->ranges[i].host |= base_ranges[j++]; 200270025Simp } 201270025Simp sc->ranges[i].size = 0; 202270025Simp for (k = 0; k < sc->scells; k++) { 203270025Simp sc->ranges[i].size <<= 32; 204270025Simp sc->ranges[i].size |= base_ranges[j++]; 205270025Simp } 206270025Simp } 207270025Simp 208270025Simp free(base_ranges, M_DEVBUF); 209270025Simp return (sc->nranges); 210270025Simp} 211270025Simp 212270025Simpstatic int 213270025Simpat91_pinctrl_attach(device_t dev) 214270025Simp{ 215270025Simp struct pinctrl_softc *sc; 216270025Simp struct pinctrl_devinfo *di; 217270025Simp phandle_t node; 218270025Simp device_t cdev; 219270025Simp 220270025Simp sc = device_get_softc(dev); 221270025Simp node = ofw_bus_get_node(dev); 222270025Simp 223270025Simp sc->dev = dev; 224270025Simp sc->node = node; 225270025Simp 226270025Simp /* 227270025Simp * Some important numbers 228270025Simp */ 229270025Simp sc->acells = 2; 230270025Simp OF_getencprop(node, "#address-cells", &sc->acells, sizeof(sc->acells)); 231270025Simp sc->scells = 1; 232270025Simp OF_getencprop(node, "#size-cells", &sc->scells, sizeof(sc->scells)); 233270025Simp 234270025Simp if (at91_pinctrl_fill_ranges(node, sc) < 0) { 235270025Simp device_printf(dev, "could not get ranges\n"); 236270025Simp return (ENXIO); 237270025Simp } 238270025Simp 239270025Simp for (node = OF_child(node); node > 0; node = OF_peer(node)) { 240270025Simp if ((di = at91_pinctrl_setup_dinfo(dev, node)) == NULL) 241270025Simp continue; 242270025Simp cdev = device_add_child(dev, NULL, -1); 243270025Simp if (cdev == NULL) { 244270025Simp device_printf(dev, "<%s>: device_add_child failed\n", 245270025Simp di->obdinfo.obd_name); 246270025Simp resource_list_free(&di->rl); 247270025Simp ofw_bus_gen_destroy_devinfo(&di->obdinfo); 248270025Simp free(di, M_DEVBUF); 249270025Simp continue; 250270025Simp } 251270025Simp device_set_ivars(cdev, di); 252270025Simp } 253270025Simp 254271548Sian fdt_pinctrl_register(dev, "atmel,pins"); 255271548Sian 256270025Simp return (bus_generic_attach(dev)); 257270025Simp} 258270025Simp 259270025Simpstatic const struct ofw_bus_devinfo * 260270025Simppinctrl_get_devinfo(device_t bus __unused, device_t child) 261270025Simp{ 262270025Simp struct pinctrl_devinfo *ndi; 263270025Simp 264270025Simp ndi = device_get_ivars(child); 265270025Simp return (&ndi->obdinfo); 266270025Simp} 267270025Simp 268270025Simpstatic struct resource * 269270025Simppinctrl_alloc_resource(device_t bus, device_t child, int type, int *rid, 270270025Simp u_long start, u_long end, u_long count, u_int flags) 271270025Simp{ 272270025Simp struct pinctrl_softc *sc; 273270025Simp struct pinctrl_devinfo *di; 274270025Simp struct resource_list_entry *rle; 275270025Simp int j; 276270025Simp 277270025Simp sc = device_get_softc(bus); 278270025Simp 279270025Simp /* 280270025Simp * Request for the default allocation with a given rid: use resource 281270025Simp * list stored in the local device info. 282270025Simp */ 283295832Sjhibbits if (RMAN_IS_DEFAULT_RANGE(start, end)) { 284270025Simp if ((di = device_get_ivars(child)) == NULL) 285270025Simp return (NULL); 286270025Simp 287270025Simp if (type == SYS_RES_IOPORT) 288270025Simp type = SYS_RES_MEMORY; 289270025Simp 290270025Simp rle = resource_list_find(&di->rl, type, *rid); 291270025Simp if (rle == NULL) { 292270025Simp// if (bootverbose) 293270025Simp device_printf(bus, "no default resources for " 294270025Simp "rid = %d, type = %d\n", *rid, type); 295270025Simp return (NULL); 296270025Simp } 297270025Simp start = rle->start; 298270025Simp end = rle->end; 299270025Simp count = rle->count; 300270025Simp } 301270025Simp 302270025Simp if (type == SYS_RES_MEMORY) { 303270025Simp /* Remap through ranges property */ 304270025Simp for (j = 0; j < sc->nranges; j++) { 305270025Simp if (start >= sc->ranges[j].bus && end < 306270025Simp sc->ranges[j].bus + sc->ranges[j].size) { 307270025Simp start -= sc->ranges[j].bus; 308270025Simp start += sc->ranges[j].host; 309270025Simp end -= sc->ranges[j].bus; 310270025Simp end += sc->ranges[j].host; 311270025Simp break; 312270025Simp } 313270025Simp } 314270025Simp if (j == sc->nranges && sc->nranges != 0) { 315270025Simp// if (bootverbose) 316270025Simp device_printf(bus, "Could not map resource " 317270025Simp "%#lx-%#lx\n", start, end); 318270025Simp 319270025Simp return (NULL); 320270025Simp } 321270025Simp } 322270025Simp 323270025Simp return (bus_generic_alloc_resource(bus, child, type, rid, start, end, 324270025Simp count, flags)); 325270025Simp} 326270025Simp 327270025Simpstatic int 328270025Simppinctrl_print_res(struct pinctrl_devinfo *di) 329270025Simp{ 330270025Simp int rv; 331270025Simp 332270025Simp rv = 0; 333270025Simp rv += resource_list_print_type(&di->rl, "mem", SYS_RES_MEMORY, "%#lx"); 334270025Simp rv += resource_list_print_type(&di->rl, "irq", SYS_RES_IRQ, "%ld"); 335270025Simp return (rv); 336270025Simp} 337270025Simp 338270025Simpstatic void 339270025Simppinctrl_probe_nomatch(device_t bus, device_t child) 340270025Simp{ 341270025Simp const char *name, *type, *compat; 342270025Simp 343270025Simp// if (!bootverbose) 344270025Simp return; 345270025Simp 346270025Simp name = ofw_bus_get_name(child); 347270025Simp type = ofw_bus_get_type(child); 348270025Simp compat = ofw_bus_get_compat(child); 349270025Simp 350270025Simp device_printf(bus, "<%s>", name != NULL ? name : "unknown"); 351270025Simp pinctrl_print_res(device_get_ivars(child)); 352270025Simp if (!ofw_bus_status_okay(child)) 353270025Simp printf(" disabled"); 354270025Simp if (type) 355270025Simp printf(" type %s", type); 356270025Simp if (compat) 357270025Simp printf(" compat %s", compat); 358270025Simp printf(" (no driver attached)\n"); 359270025Simp} 360270025Simp 361270025Simpstatic int 362270025Simppinctrl_print_child(device_t bus, device_t child) 363270025Simp{ 364270025Simp int rv; 365270025Simp 366270025Simp rv = bus_print_child_header(bus, child); 367270025Simp rv += pinctrl_print_res(device_get_ivars(child)); 368270025Simp if (!ofw_bus_status_okay(child)) 369270025Simp rv += printf(" disabled"); 370270025Simp rv += bus_print_child_footer(bus, child); 371270025Simp return (rv); 372270025Simp} 373270025Simp 374270025Simpconst char *periphs[] = {"gpio", "periph A", "periph B", "periph C", "periph D", "periph E" }; 375270025Simp 376271548Sianstruct pincfg { 377271548Sian uint32_t unit; 378271548Sian uint32_t pin; 379271548Sian uint32_t periph; 380271548Sian uint32_t flags; 381271548Sian}; 382271548Sian 383271548Sianstatic int 384271548Sianpinctrl_configure_pins(device_t bus, phandle_t cfgxref) 385270025Simp{ 386270025Simp struct pinctrl_softc *sc; 387271548Sian struct pincfg *cfg, *cfgdata; 388270025Simp char name[32]; 389271548Sian phandle_t node; 390271548Sian ssize_t npins; 391271548Sian int i; 392270025Simp 393270025Simp sc = device_get_softc(bus); 394271548Sian node = OF_node_from_xref(cfgxref); 395271548Sian memset(name, 0, sizeof(name)); 396271548Sian OF_getprop(node, "name", name, sizeof(name)); 397271548Sian npins = OF_getencprop_alloc(node, "atmel,pins", sizeof(*cfgdata), 398271548Sian (void **)&cfgdata); 399271548Sian if (npins < 0) { 400271548Sian printf("We're doing it wrong %s\n", name); 401271548Sian return (ENXIO); 402271548Sian } 403271548Sian if (npins == 0) 404271548Sian return (0); 405271548Sian for (i = 0, cfg = cfgdata; i < npins; i++, cfg++) { 406271548Sian uint32_t pio; 407271548Sian pio = (0xfffffff & sc->ranges[0].bus) + 0x200 * cfg->unit; 408271548Sian printf("P%c%d %s %#x\n", cfg->unit + 'A', cfg->pin, 409271548Sian periphs[cfg->periph], cfg->flags); 410271548Sian switch (cfg->periph) { 411271548Sian case 0: 412271548Sian at91_pio_use_gpio(pio, 1u << cfg->pin); 413271548Sian at91_pio_gpio_pullup(pio, 1u << cfg->pin, 414271548Sian !!(cfg->flags & 1)); 415271548Sian at91_pio_gpio_high_z(pio, 1u << cfg->pin, 416271548Sian !!(cfg->flags & 2)); 417271548Sian at91_pio_gpio_set_deglitch(pio, 418271548Sian 1u << cfg->pin, !!(cfg->flags & 4)); 419271548Sian// at91_pio_gpio_pulldown(pio, 1u << cfg->pin, 420271548Sian// !!(cfg->flags & 8)); 421271548Sian// at91_pio_gpio_dis_schmidt(pio, 422271548Sian// 1u << cfg->pin, !!(cfg->flags & 16)); 423271548Sian break; 424271548Sian case 1: 425271548Sian at91_pio_use_periph_a(pio, 1u << cfg->pin, cfg->flags); 426271548Sian break; 427271548Sian case 2: 428271548Sian at91_pio_use_periph_b(pio, 1u << cfg->pin, cfg->flags); 429271548Sian break; 430270025Simp } 431270025Simp } 432271548Sian free(cfgdata, M_OFWPROP); 433271548Sian return (0); 434270025Simp} 435270025Simp 436270025Simpstatic void 437270025Simppinctrl_new_pass(device_t bus) 438270025Simp{ 439270025Simp struct pinctrl_softc *sc; 440270025Simp 441270025Simp sc = device_get_softc(bus); 442270025Simp 443270025Simp bus_generic_new_pass(bus); 444270025Simp 445270025Simp if (sc->done_pinmux || bus_current_pass < BUS_PASS_PINMUX) 446270025Simp return; 447270025Simp sc->done_pinmux++; 448270025Simp 449271548Sian fdt_pinctrl_configure_tree(bus); 450270025Simp} 451270025Simp 452270025Simpstatic device_method_t at91_pinctrl_methods[] = { 453270025Simp DEVMETHOD(device_probe, at91_pinctrl_probe), 454270025Simp DEVMETHOD(device_attach, at91_pinctrl_attach), 455270025Simp 456270025Simp DEVMETHOD(bus_print_child, pinctrl_print_child), 457270025Simp DEVMETHOD(bus_probe_nomatch, pinctrl_probe_nomatch), 458270025Simp DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 459270025Simp DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 460270025Simp DEVMETHOD(bus_alloc_resource, pinctrl_alloc_resource), 461270025Simp DEVMETHOD(bus_release_resource, bus_generic_release_resource), 462270025Simp DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 463270025Simp DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 464270025Simp DEVMETHOD(bus_adjust_resource, bus_generic_adjust_resource), 465270025Simp DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str), 466270025Simp DEVMETHOD(bus_new_pass, pinctrl_new_pass), 467270025Simp 468270025Simp /* ofw_bus interface */ 469270025Simp DEVMETHOD(ofw_bus_get_devinfo, pinctrl_get_devinfo), 470270025Simp DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), 471270025Simp DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), 472270025Simp DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), 473270025Simp DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), 474270025Simp DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), 475270025Simp 476271548Sian /* fdt_pintrl interface */ 477271548Sian DEVMETHOD(fdt_pinctrl_configure,pinctrl_configure_pins), 478270025Simp DEVMETHOD_END 479270025Simp}; 480270025Simp 481270025Simpstatic driver_t at91_pinctrl_driver = { 482270025Simp "at91_pinctrl", 483270025Simp at91_pinctrl_methods, 484270025Simp sizeof(struct pinctrl_softc), 485270025Simp}; 486270025Simp 487270025Simpstatic devclass_t at91_pinctrl_devclass; 488270025Simp 489271104SimpEARLY_DRIVER_MODULE(at91_pinctrl, simplebus, at91_pinctrl_driver, 490271104Simp at91_pinctrl_devclass, NULL, NULL, BUS_PASS_BUS); 491270025Simp 492270025Simp/* 493270025Simp * dummy driver to force pass BUS_PASS_PINMUX to happen. 494270025Simp */ 495270025Simpstatic int 496270025Simpat91_pingroup_probe(device_t dev) 497270025Simp{ 498270025Simp return ENXIO; 499270025Simp} 500270025Simp 501270025Simpstatic device_method_t at91_pingroup_methods[] = { 502270025Simp DEVMETHOD(device_probe, at91_pingroup_probe), 503270025Simp 504270025Simp DEVMETHOD_END 505270025Simp}; 506270025Simp 507270025Simp 508270025Simpstatic driver_t at91_pingroup_driver = { 509270025Simp "at91_pingroup", 510270025Simp at91_pingroup_methods, 511270025Simp 0, 512270025Simp}; 513270025Simp 514270025Simpstatic devclass_t at91_pingroup_devclass; 515270025Simp 516271104SimpEARLY_DRIVER_MODULE(at91_pingroup, at91_pinctrl, at91_pingroup_driver, 517271104Simp at91_pingroup_devclass, NULL, NULL, BUS_PASS_PINMUX); 518