ste-ux500-samsung-kyle.dts (16775B)
1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * Devicetree for the Samsung Galaxy Amp SGH-I407 also known as Kyle. 4 * 5 * The code also refers to "Kyle AT&T" reflecting that this mobile phone 6 * was customized for the AT&T subsidiary Aio Wireless (All In One) and 7 * offered by the company in 2013. 8 */ 9 10/dts-v1/; 11#include "ste-db8500.dtsi" 12#include "ste-ab8505.dtsi" 13#include "ste-dbx5x0-pinctrl.dtsi" 14#include <dt-bindings/gpio/gpio.h> 15#include <dt-bindings/leds/common.h> 16#include <dt-bindings/input/input.h> 17#include <dt-bindings/interrupt-controller/irq.h> 18 19/ { 20 model = "Samsung Galaxy Amp (SGH-I407)"; 21 compatible = "samsung,kyle", "st-ericsson,u8500"; 22 23 chosen { 24 stdout-path = &serial2; 25 }; 26 27 battery: battery { 28 compatible = "samsung,eb425161la"; 29 }; 30 31 thermal-zones { 32 battery-thermal { 33 /* This zone will be polled by the battery temperature code */ 34 polling-delay = <0>; 35 polling-delay-passive = <0>; 36 thermal-sensors = <&bat_therm>; 37 }; 38 }; 39 40 bat_therm: thermistor { 41 compatible = "samsung,1404-001221"; 42 io-channels = <&gpadc 0x02>; /* BatTemp */ 43 pullup-uv = <1800000>; 44 pullup-ohm = <230000>; 45 pulldown-ohm = <0>; 46 #thermal-sensor-cells = <0>; 47 }; 48 49 /* TI TXS0206 level translator for 2.9 V */ 50 sd_level_translator: regulator-gpio { 51 compatible = "regulator-fixed"; 52 53 /* GPIO87 EN */ 54 gpios = <&gpio2 23 GPIO_ACTIVE_HIGH>; 55 enable-active-high; 56 57 regulator-name = "sd-level-translator"; 58 regulator-min-microvolt = <2900000>; 59 regulator-max-microvolt = <2900000>; 60 regulator-type = "voltage"; 61 62 startup-delay-us = <200>; 63 64 pinctrl-names = "default"; 65 pinctrl-0 = <&sd_level_translator_default>; 66 }; 67 68 /* External LDO MIC5366-3.3YMT for eMMC */ 69 ldo_3v3_reg: regulator-gpio-ldo-3v3 { 70 compatible = "regulator-fixed"; 71 regulator-name = "en-3v3-fixed-supply"; 72 regulator-min-microvolt = <3300000>; 73 regulator-max-microvolt = <3300000>; 74 gpio = <&gpio6 31 GPIO_ACTIVE_HIGH>; 75 startup-delay-us = <5000>; 76 enable-active-high; 77 pinctrl-names = "default"; 78 pinctrl-0 = <&emmc_ldo_en_default_mode>; 79 }; 80 81 /* 82 * External Ricoh RP152L010B-TR LCD LDO regulator for the display. 83 * LCD_PWR_EN controls both a 3.0V and 1.8V output. 84 */ 85 lcd_3v0_reg: regulator-gpio-lcd-3v0 { 86 compatible = "regulator-fixed"; 87 /* Supplied in turn by VBAT */ 88 regulator-name = "VREG_LCD_3V0"; 89 regulator-min-microvolt = <3000000>; 90 regulator-max-microvolt = <3000000>; 91 /* GPIO219 controls this regulator */ 92 gpio = <&gpio6 27 GPIO_ACTIVE_HIGH>; 93 enable-active-high; 94 pinctrl-names = "default"; 95 pinctrl-0 = <&lcd_pwr_en_default_mode>; 96 }; 97 lcd_1v8_reg: regulator-gpio-lcd-1v8 { 98 compatible = "regulator-fixed"; 99 /* Supplied in turn by VBAT */ 100 regulator-name = "VREG_LCD_1V8"; 101 regulator-min-microvolt = <1800000>; 102 regulator-max-microvolt = <1800000>; 103 /* GPIO219 controls this regulator too */ 104 gpio = <&gpio6 27 GPIO_ACTIVE_HIGH>; 105 enable-active-high; 106 pinctrl-names = "default"; 107 pinctrl-0 = <&lcd_pwr_en_default_mode>; 108 }; 109 110 wlan_en: regulator-gpio-wlan-en { 111 compatible = "regulator-fixed"; 112 regulator-name = "wl-reg-on"; 113 regulator-min-microvolt = <3000000>; 114 regulator-max-microvolt = <3000000>; 115 startup-delay-us = <200000>; 116 /* GPIO215 WLAN_EN */ 117 gpio = <&gpio6 23 GPIO_ACTIVE_HIGH>; 118 enable-active-high; 119 pinctrl-names = "default"; 120 pinctrl-0 = <&wlan_en_default_mode>; 121 }; 122 123 vibrator { 124 compatible = "gpio-vibrator"; 125 enable-gpios = <&gpio6 3 GPIO_ACTIVE_HIGH>; 126 pinctrl-names = "default"; 127 pinctrl-0 = <&vibrator_default>; 128 }; 129 130 gpio-keys { 131 compatible = "gpio-keys"; 132 pinctrl-names = "default"; 133 pinctrl-0 = <&gpio_keys_default_mode>; 134 135 button-home { 136 linux,code = <KEY_HOME>; 137 label = "HOME"; 138 /* GPIO91 */ 139 gpios = <&gpio2 27 GPIO_ACTIVE_LOW>; 140 }; 141 button-volup { 142 linux,code = <KEY_VOLUMEUP>; 143 label = "VOL+"; 144 /* GPIO67 */ 145 gpios = <&gpio2 3 GPIO_ACTIVE_LOW>; 146 }; 147 button-voldown { 148 linux,code = <KEY_VOLUMEDOWN>; 149 label = "VOL-"; 150 /* GPIO92 */ 151 gpios = <&gpio2 28 GPIO_ACTIVE_LOW>; 152 }; 153 }; 154 155 ktd253: backlight { 156 compatible = "kinetic,ktd253"; 157 /* GPIO 69 */ 158 enable-gpios = <&gpio2 5 GPIO_ACTIVE_HIGH>; 159 /* Default to 13/32 brightness */ 160 default-brightness = <13>; 161 pinctrl-names = "default"; 162 pinctrl-0 = <&gpio_backlight_default_mode>; 163 }; 164 165 /* Richtek RT8515GQW Flash LED Driver IC */ 166 flash { 167 compatible = "richtek,rt8515"; 168 /* GPIO 140 */ 169 enf-gpios = <&gpio4 12 GPIO_ACTIVE_HIGH>; 170 /* GPIO 141 */ 171 ent-gpios = <&gpio4 13 GPIO_ACTIVE_HIGH>; 172 /* 173 * RFS is 16 kOhm and RTS is 100 kOhm giving 174 * the flash max current 343mA and torch max 175 * current 55 mA. 176 */ 177 richtek,rfs-ohms = <16000>; 178 richtek,rts-ohms = <100000>; 179 pinctrl-names = "default"; 180 pinctrl-0 = <&gpio_flash_default_mode>; 181 182 led { 183 function = LED_FUNCTION_FLASH; 184 color = <LED_COLOR_ID_WHITE>; 185 flash-max-timeout-us = <250000>; 186 flash-max-microamp = <343750>; 187 led-max-microamp = <55000>; 188 }; 189 }; 190 191 i2c-gpio-0 { 192 compatible = "i2c-gpio"; 193 sda-gpios = <&gpio4 16 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; 194 scl-gpios = <&gpio4 15 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; 195 pinctrl-names = "default"; 196 pinctrl-0 = <&i2c_gpio_0_default>; 197 #address-cells = <1>; 198 #size-cells = <0>; 199 /* TODO: this should be used by the NCP6914 Camera power management unit */ 200 }; 201 202 i2c-gpio-1 { 203 compatible = "i2c-gpio"; 204 sda-gpios = <&gpio4 24 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; 205 scl-gpios = <&gpio4 23 (GPIO_ACTIVE_HIGH|GPIO_OPEN_DRAIN)>; 206 pinctrl-names = "default"; 207 pinctrl-0 = <&i2c_gpio_1_default>; 208 #address-cells = <1>; 209 #size-cells = <0>; 210 magnetometer@c { 211 compatible = "alps,hscdtd008a"; 212 reg = <0x0c>; 213 avdd-supply = <&ab8500_ldo_aux1_reg>; 214 dvdd-supply = <&ab8500_ldo_aux6_reg>; 215 }; 216 }; 217 218 soc { 219 // External Micro SD slot 220 mmc@80126000 { 221 arm,primecell-periphid = <0x10480180>; 222 max-frequency = <100000000>; 223 bus-width = <4>; 224 cap-sd-highspeed; 225 cap-mmc-highspeed; 226 st,sig-pin-fbclk; 227 full-pwr-cycle; 228 vmmc-supply = <&ab8500_ldo_aux3_reg>; 229 vqmmc-supply = <&sd_level_translator>; 230 pinctrl-names = "default", "sleep"; 231 pinctrl-0 = <&mc0_a_1_default>; 232 pinctrl-1 = <&mc0_a_1_sleep>; 233 cd-gpios = <&gpio6 25 GPIO_ACTIVE_LOW>; // GPIO217 234 status = "okay"; 235 }; 236 237 // WLAN SDIO channel 238 mmc@80118000 { 239 arm,primecell-periphid = <0x10480180>; 240 max-frequency = <50000000>; 241 bus-width = <4>; 242 non-removable; 243 cap-sd-highspeed; 244 vmmc-supply = <&wlan_en>; 245 pinctrl-names = "default", "sleep"; 246 pinctrl-0 = <&mc1_a_2_default>; 247 pinctrl-1 = <&mc1_a_2_sleep>; 248 status = "okay"; 249 #address-cells = <1>; 250 #size-cells = <0>; 251 252 wifi@1 { 253 compatible = "brcm,bcm4334-fmac", "brcm,bcm4329-fmac"; 254 reg = <1>; 255 /* GPIO216 WL_HOST_WAKE */ 256 interrupt-parent = <&gpio6>; 257 interrupts = <24 IRQ_TYPE_EDGE_FALLING>; 258 interrupt-names = "host-wake"; 259 pinctrl-names = "default"; 260 pinctrl-0 = <&wlan_default_mode>; 261 }; 262 }; 263 264 /* 265 * eMMC seems to be mostly Samsung KLM4G1YE4C "4YMD1R" 266 */ 267 mmc@80005000 { 268 arm,primecell-periphid = <0x10480180>; 269 max-frequency = <100000000>; 270 bus-width = <8>; 271 non-removable; 272 cap-mmc-highspeed; 273 mmc-ddr-1_8v; 274 no-sdio; 275 no-sd; 276 /* From datasheet page 26 figure 9: 300 ms set-up time for 4GB */ 277 post-power-on-delay-ms = <300>; 278 vmmc-supply = <&ldo_3v3_reg>; 279 pinctrl-names = "default", "sleep"; 280 pinctrl-0 = <&mc2_a_1_default>; 281 pinctrl-1 = <&mc2_a_1_sleep>; 282 283 status = "okay"; 284 }; 285 286 /* GBF (Bluetooth) UART */ 287 uart@80120000 { 288 pinctrl-names = "default", "sleep"; 289 pinctrl-0 = <&u0_a_1_default>; 290 pinctrl-1 = <&u0_a_1_sleep>; 291 status = "okay"; 292 293 bluetooth { 294 /* BCM4334B0 actually */ 295 compatible = "brcm,bcm4330-bt"; 296 shutdown-gpios = <&gpio6 30 GPIO_ACTIVE_HIGH>; 297 device-wakeup-gpios = <&gpio6 7 GPIO_ACTIVE_HIGH>; 298 host-wakeup-gpios = <&gpio3 1 GPIO_ACTIVE_HIGH>; 299 pinctrl-names = "default"; 300 pinctrl-0 = <&bluetooth_default_mode>; 301 }; 302 }; 303 304 /* GPF UART */ 305 uart@80121000 { 306 status = "okay"; 307 pinctrl-names = "default", "sleep"; 308 pinctrl-0 = <&u1rxtx_a_1_default &u1ctsrts_a_1_default>; 309 pinctrl-1 = <&u1rxtx_a_1_sleep &u1ctsrts_a_1_sleep>; 310 }; 311 312 /* Debugging console UART connected to AB8505 USB */ 313 uart@80007000 { 314 status = "okay"; 315 pinctrl-names = "default", "sleep"; 316 pinctrl-0 = <&u2rxtx_c_1_default>; 317 pinctrl-1 = <&u2rxtx_c_1_sleep>; 318 }; 319 320 prcmu@80157000 { 321 ab8505 { 322 phy { 323 pinctrl-names = "default", "sleep"; 324 pinctrl-0 = <&usb_a_1_default>; 325 pinctrl-1 = <&usb_a_1_sleep>; 326 }; 327 328 ab8500_fg { 329 line-impedance-micro-ohms = <36000>; 330 }; 331 332 regulator { 333 ab8500_ldo_aux1 { 334 /* Used for VDD for sensors */ 335 regulator-name = "AUX1"; 336 regulator-min-microvolt = <3000000>; 337 regulator-max-microvolt = <3300000>; 338 }; 339 340 ab8500_ldo_aux2 { 341 /* Supplies the MMS touchscreen only with 3.3V */ 342 regulator-name = "AUX2"; 343 regulator-min-microvolt = <3300000>; 344 regulator-max-microvolt = <3300000>; 345 }; 346 347 ab8500_ldo_aux3 { 348 /* Used for voltage for external MMC/SD card */ 349 regulator-name = "AUX3"; 350 regulator-min-microvolt = <1100000>; 351 regulator-max-microvolt = <3300000>; 352 }; 353 354 ab8500_ldo_aux4 { 355 regulator-name = "AUX4"; 356 /* Hammer to 3.3V for the touchscreen */ 357 regulator-min-microvolt = <3300000>; 358 regulator-max-microvolt = <3300000>; 359 }; 360 361 ab8500_ldo_aux5 { 362 regulator-name = "AUX5"; 363 /* 1.8V for the touchscreen */ 364 regulator-min-microvolt = <1800000>; 365 regulator-max-microvolt = <1800000>; 366 }; 367 368 ab8500_ldo_aux6 { 369 regulator-name = "AUX6"; 370 /* Used by sensors for 1.8 V in R0.1+ */ 371 regulator-min-microvolt = <1800000>; 372 regulator-max-microvolt = <1800000>; 373 }; 374 375 ab8500_ldo_aux8 { 376 /* Unused */ 377 regulator-name = "AUX8"; 378 }; 379 }; 380 }; 381 }; 382 383 /* I2C0 */ 384 i2c@80004000 { 385 status = "okay"; 386 387 pinctrl-names = "default", "sleep"; 388 pinctrl-0 = <&i2c0_a_1_default>; 389 pinctrl-1 = <&i2c0_a_1_sleep>; 390 391 proximity@44 { 392 compatible = "sharp,gp2ap002s00f"; 393 clock-frequency = <400000>; 394 reg = <0x44>; 395 396 interrupt-parent = <&gpio4>; 397 interrupts = <18 IRQ_TYPE_EDGE_FALLING>; 398 vdd-supply = <&ab8500_ldo_aux1_reg>; 399 vio-supply = <&ab8500_ldo_aux6_reg>; 400 pinctrl-names = "default"; 401 pinctrl-0 = <&gp2ap002_kyle_default>; 402 sharp,proximity-far-hysteresis = /bits/ 8 <0x2f>; 403 sharp,proximity-close-hysteresis = /bits/ 8 <0x0f>; 404 }; 405 }; 406 407 /* I2C2 */ 408 i2c@80128000 { 409 status = "okay"; 410 411 pinctrl-names = "default", "sleep"; 412 pinctrl-0 = <&i2c2_b_2_default>; 413 pinctrl-1 = <&i2c2_b_2_sleep>; 414 415 accel@18 { 416 compatible = "bosch,bma254"; 417 clock-frequency = <400000>; 418 reg = <0x18>; 419 420 mount-matrix = "-1", "0", "0", 421 "0", "-1", "0", 422 "0", "0", "-1"; 423 vdd-supply = <&ab8500_ldo_aux1_reg>; 424 vddio-supply = <&ab8500_ldo_aux6_reg>; 425 }; 426 }; 427 428 /* I2C3 */ 429 i2c@80110000 { 430 status = "okay"; 431 432 pinctrl-names = "default", "sleep"; 433 pinctrl-0 = <&i2c3_c_2_default>; 434 pinctrl-1 = <&i2c3_c_2_sleep>; 435 436 /* Melfas MMS134S touchscreen */ 437 touchscreen@48 { 438 compatible = "melfas,mms134s"; 439 reg = <0x48>; 440 /* GPIO218 for IRQ */ 441 interrupt-parent = <&gpio6>; 442 interrupts = <26 IRQ_TYPE_EDGE_FALLING>; 443 /* AVDD is "analog supply", 2.57-3.47 V */ 444 avdd-supply = <&ab8500_ldo_aux2_reg>; 445 /* VDD is "digital supply" 1.71-3.47V */ 446 vdd-supply = <&ab8500_ldo_aux5_reg>; 447 448 touchscreen-size-x = <480>; 449 touchscreen-size-y = <800>; 450 451 pinctrl-names = "default"; 452 pinctrl-0 = <&mms134s_kyle_default>; 453 }; 454 }; 455 456 mcde@a0350000 { 457 status = "okay"; 458 pinctrl-names = "default"; 459 pinctrl-0 = <&dsi_default_mode>; 460 461 dsi@a0351000 { 462 panel { 463 /* 464 * NT35510-based Hydis HVA40WV1 465 * Apparently some Kyle models can have a NT35512 fitted 466 * here instead. In that case the boot loader needs to 467 * modify this compatible. 468 */ 469 compatible = "hydis,hva40wv1", "novatek,nt35510"; 470 reg = <0>; 471 /* v_lcd_3v0 2.3-4.8V */ 472 vdd-supply = <&lcd_3v0_reg>; 473 /* v_lcd_1v8 1.65-3.3V */ 474 vddi-supply = <&lcd_1v8_reg>; 475 /* GPIO 139 */ 476 reset-gpios = <&gpio4 11 GPIO_ACTIVE_LOW>; 477 pinctrl-names = "default"; 478 pinctrl-0 = <&display_default_mode>; 479 backlight = <&ktd253>; 480 }; 481 }; 482 }; 483 }; 484}; 485 486&pinctrl { 487 /* 488 * This extends the MC0_A_1 default config to include 489 * the card detect GPIO217 line. 490 */ 491 sdi0 { 492 mc0_a_1_default { 493 default_cfg1 { 494 /* GPIO18, 19 & 20 unused so pull down */ 495 ste,config = <&gpio_in_pd>; 496 }; 497 default_cfg4 { 498 pins = "GPIO217_AH12"; /* card detect */ 499 ste,config = <&gpio_in_pd>; 500 }; 501 }; 502 }; 503 504 mcde { 505 dsi_default_mode: dsi_default { 506 default_mux1 { 507 /* Mux in VSI0 used for DSI TE */ 508 function = "lcd"; 509 groups = "lcdvsi0_a_1"; /* VSI0 for LCD */ 510 }; 511 default_cfg1 { 512 pins = "GPIO68_E1"; /* VSI0 */ 513 ste,config = <&in_nopull>; 514 }; 515 }; 516 }; 517 518 /* Two GPIO lines used by the display */ 519 display { 520 display_default_mode: display_default { 521 kyle_cfg1 { 522 /* 523 * OLED DETECT or check_pba, this appears to be high 524 * on "PBA" which I guess is "prototype board A". 525 */ 526 pins = "GPIO93_B7"; 527 ste,config = <&gpio_in_nopull>; 528 }; 529 kyle_cfg2 { 530 pins = "GPIO139_C9"; 531 /* 532 * MIPI_DSI0_RESET_N resets the display, leave high 533 * (de-asserted) so we only assert reset explicitly 534 * from the display driver. 535 */ 536 ste,config = <&gpio_out_hi>; 537 }; 538 }; 539 }; 540 541 /* GPIO that enables the LDO regulator for the LCD display */ 542 lcd-ldo { 543 lcd_pwr_en_default_mode: lcd_pwr_en_default { 544 /* LCD_PWR_EN on GPIO219 */ 545 kyle_cfg1 { 546 pins = "GPIO219_AG10"; 547 ste,config = <&gpio_out_hi>; 548 }; 549 }; 550 }; 551 552 backlight { 553 gpio_backlight_default_mode: backlight_default { 554 kyle_cfg1 { 555 pins = "GPIO69_E2"; /* LCD_BL_CTRL */ 556 ste,config = <&gpio_out_lo>; 557 }; 558 }; 559 }; 560 flash { 561 gpio_flash_default_mode: flash_default { 562 kyle_cfg1 { 563 pins = "GPIO140_B11", "GPIO141_C12"; 564 ste,config = <&gpio_out_lo>; 565 }; 566 }; 567 }; 568 /* GPIO that enables the 2.9V SD card level translator */ 569 sd-level-translator { 570 sd_level_translator_default: sd_level_translator_default { 571 /* level shifter on GPIO87 */ 572 kyle_cfg1 { 573 pins = "GPIO87_B3"; 574 ste,config = <&gpio_out_hi>; 575 }; 576 }; 577 }; 578 /* GPIO that enables the LDO regulator for the eMMC */ 579 emmc-ldo { 580 emmc_ldo_en_default_mode: emmc_ldo_default { 581 /* LDO enable on GPIO223 */ 582 kyle_cfg1 { 583 pins = "GPIO223_AH9"; 584 ste,config = <&gpio_out_hi>; 585 }; 586 }; 587 }; 588 /* GPIO keys */ 589 gpio-keys { 590 gpio_keys_default_mode: gpio_keys_default { 591 kyle_cfg1 { 592 pins = "GPIO67_G2", /* VOL UP */ 593 "GPIO91_B6", /* HOME */ 594 "GPIO92_D6"; /* VOL DOWN */ 595 ste,config = <&gpio_in_pu>; 596 }; 597 }; 598 }; 599 /* Interrupt line for light/proximity sensor GP2AP002 */ 600 gp2ap002 { 601 gp2ap002_kyle_default: gp2ap002_kyle { 602 kyle_cfg1 { 603 pins = "GPIO146_D13"; 604 ste,config = <&gpio_in_nopull>; 605 }; 606 }; 607 }; 608 /* GPIO-based I2C bus for NCP6914 */ 609 i2c-gpio-0 { 610 i2c_gpio_0_default: i2c_gpio_0 { 611 kyle_cfg1 { 612 pins = "GPIO143_D12", "GPIO144_B13"; 613 ste,config = <&gpio_in_nopull>; 614 }; 615 }; 616 }; 617 /* GPIO-based I2C bus for ALPS HSCD compass */ 618 i2c-gpio-1 { 619 i2c_gpio_1_default: i2c_gpio_1 { 620 kyle_cfg1 { 621 pins = "GPIO151_B17", "GPIO152_D16"; 622 ste,config = <&gpio_in_nopull>; 623 }; 624 }; 625 }; 626 wlan { 627 wlan_default_mode: wlan_default { 628 kyle_cfg1 { 629 pins = "GPIO216_AG12"; 630 ste,config = <&gpio_in_pd>; 631 }; 632 }; 633 wlan_en_default_mode: wlan_en_default { 634 kyle_cfg2 { 635 pins = "GPIO215_AH13"; 636 ste,config = <&gpio_out_lo>; 637 }; 638 }; 639 }; 640 bluetooth { 641 bluetooth_default_mode: bluetooth_default { 642 kyle_cfg1 { 643 pins = "GPIO199_AH23", "GPIO222_AJ9"; 644 ste,config = <&gpio_out_lo>; 645 }; 646 kyle_cfg2 { 647 pins = "GPIO97_D9"; 648 ste,config = <&gpio_in_nopull>; 649 }; 650 }; 651 }; 652 vibrator { 653 vibrator_default: vibrator_default { 654 kyle_cfg1 { 655 pins = "GPIO195_AG28"; /* MOT_EN */ 656 ste,config = <&gpio_out_lo>; 657 }; 658 }; 659 }; 660 /* Interrupt line for the Melfas MMS134S touchscreen */ 661 touchscreen { 662 mms134s_kyle_default: mms134s_kyle { 663 kyle_cfg1 { 664 pins = "GPIO218_AH11"; 665 ste,config = <&gpio_in_nopull>; 666 }; 667 }; 668 }; 669}; 670 671&ab8505_gpio { 672 /* Hog a few default settings */ 673 pinctrl-names = "default"; 674 pinctrl-0 = <&gpio_default>; 675 676 gpio { 677 gpio_default: gpio_default { 678 kyle_mux { 679 /* Change unused pins to GPIO mode */ 680 function = "gpio"; 681 groups = "gpio3_a_1", /* default: SysClkReq4 */ 682 "gpio14_a_1"; /* default: PWMOut1 */ 683 }; 684 kyle_cfg1 { 685 pins = "GPIO11_B17", "GPIO13_D17", "GPIO50_L4"; 686 bias-disable; 687 }; 688 }; 689 }; 690};