1// SPDX-License-Identifier: BSD-3-Clause 2/* 3 * Copyright (c) 2021, The Linux Foundation. All rights reserved. 4 * Copyright (c) 2022, Linaro Limited 5 */ 6 7/dts-v1/; 8 9#include <dt-bindings/gpio/gpio.h> 10#include <dt-bindings/regulator/qcom,rpmh-regulator.h> 11#include <dt-bindings/spmi/spmi.h> 12#include <dt-bindings/pinctrl/qcom,pmic-gpio.h> 13 14#include "sa8540p.dtsi" 15#include "sa8540p-pmics.dtsi" 16 17/ { 18 model = "Qualcomm SA8295P ADP"; 19 compatible = "qcom,sa8295p-adp", "qcom,sa8540p"; 20 21 aliases { 22 serial0 = &uart17; 23 }; 24 25 chosen { 26 stdout-path = "serial0:115200n8"; 27 }; 28 29 dp2-connector { 30 compatible = "dp-connector"; 31 label = "DP2"; 32 type = "mini"; 33 34 hpd-gpios = <&tlmm 20 GPIO_ACTIVE_HIGH>; 35 36 port { 37 dp2_connector_in: endpoint { 38 remote-endpoint = <&mdss1_dp0_out>; 39 }; 40 }; 41 }; 42 43 dp3-connector { 44 compatible = "dp-connector"; 45 label = "DP3"; 46 type = "mini"; 47 48 hpd-gpios = <&tlmm 45 GPIO_ACTIVE_HIGH>; 49 50 port { 51 dp3_connector_in: endpoint { 52 remote-endpoint = <&mdss1_dp1_out>; 53 }; 54 }; 55 }; 56 57 edp0-connector { 58 compatible = "dp-connector"; 59 label = "EDP0"; 60 type = "mini"; 61 62 hpd-gpios = <&tlmm 2 GPIO_ACTIVE_HIGH>; 63 64 port { 65 edp0_connector_in: endpoint { 66 remote-endpoint = <&mdss0_dp2_out>; 67 }; 68 }; 69 }; 70 71 edp1-connector { 72 compatible = "dp-connector"; 73 label = "EDP1"; 74 type = "mini"; 75 76 hpd-gpios = <&tlmm 3 GPIO_ACTIVE_HIGH>; 77 78 port { 79 edp1_connector_in: endpoint { 80 remote-endpoint = <&mdss0_dp3_out>; 81 }; 82 }; 83 }; 84 85 edp2-connector { 86 compatible = "dp-connector"; 87 label = "EDP2"; 88 type = "mini"; 89 90 hpd-gpios = <&tlmm 7 GPIO_ACTIVE_HIGH>; 91 92 port { 93 edp2_connector_in: endpoint { 94 remote-endpoint = <&mdss1_dp2_out>; 95 }; 96 }; 97 }; 98 99 edp3-connector { 100 compatible = "dp-connector"; 101 label = "EDP3"; 102 type = "mini"; 103 104 hpd-gpios = <&tlmm 6 GPIO_ACTIVE_HIGH>; 105 106 port { 107 edp3_connector_in: endpoint { 108 remote-endpoint = <&mdss1_dp3_out>; 109 }; 110 }; 111 }; 112 113 regulator-usb2-vbus { 114 compatible = "regulator-fixed"; 115 regulator-name = "USB2_VBUS"; 116 gpio = <&pmm8540c_gpios 9 GPIO_ACTIVE_HIGH>; 117 pinctrl-0 = <&usb2_en>; 118 pinctrl-names = "default"; 119 enable-active-high; 120 regulator-always-on; 121 }; 122 123 regulator-usb3-vbus { 124 compatible = "regulator-fixed"; 125 regulator-name = "USB3_VBUS"; 126 gpio = <&pmm8540e_gpios 5 GPIO_ACTIVE_HIGH>; 127 pinctrl-0 = <&usb3_en>; 128 pinctrl-names = "default"; 129 enable-active-high; 130 regulator-always-on; 131 }; 132 133 regulator-usb4-vbus { 134 compatible = "regulator-fixed"; 135 regulator-name = "USB4_VBUS"; 136 gpio = <&pmm8540g_gpios 5 GPIO_ACTIVE_HIGH>; 137 pinctrl-0 = <&usb4_en>; 138 pinctrl-names = "default"; 139 enable-active-high; 140 regulator-always-on; 141 }; 142 143 regulator-usb5-vbus { 144 compatible = "regulator-fixed"; 145 regulator-name = "USB5_VBUS"; 146 gpio = <&pmm8540g_gpios 9 GPIO_ACTIVE_HIGH>; 147 pinctrl-0 = <&usb5_en>; 148 pinctrl-names = "default"; 149 enable-active-high; 150 regulator-always-on; 151 }; 152}; 153 154&apps_rsc { 155 regulators-0 { 156 compatible = "qcom,pm8150-rpmh-regulators"; 157 qcom,pmic-id = "a"; 158 159 vreg_l3a: ldo3 { 160 regulator-name = "vreg_l3a"; 161 regulator-min-microvolt = <1200000>; 162 regulator-max-microvolt = <1208000>; 163 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 164 }; 165 166 vreg_l5a: ldo5 { 167 regulator-name = "vreg_l5a"; 168 regulator-min-microvolt = <912000>; 169 regulator-max-microvolt = <912000>; 170 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 171 }; 172 173 vreg_l7a: ldo7 { 174 regulator-name = "vreg_l7a"; 175 regulator-min-microvolt = <1800000>; 176 regulator-max-microvolt = <1800000>; 177 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 178 }; 179 180 vreg_l13a: ldo13 { 181 regulator-name = "vreg_l13a"; 182 regulator-min-microvolt = <3072000>; 183 regulator-max-microvolt = <3072000>; 184 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 185 }; 186 187 vreg_l11a: ldo11 { 188 regulator-name = "vreg_l11a"; 189 regulator-min-microvolt = <880000>; 190 regulator-max-microvolt = <880000>; 191 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 192 }; 193 }; 194 195 regulators-1 { 196 compatible = "qcom,pm8150-rpmh-regulators"; 197 qcom,pmic-id = "c"; 198 199 vreg_l1c: ldo1 { 200 regulator-name = "vreg_l1c"; 201 regulator-min-microvolt = <912000>; 202 regulator-max-microvolt = <912000>; 203 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 204 }; 205 206 vreg_l2c: ldo2 { 207 regulator-name = "vreg_l2c"; 208 regulator-min-microvolt = <3072000>; 209 regulator-max-microvolt = <3072000>; 210 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 211 }; 212 213 vreg_l3c: ldo3 { 214 regulator-name = "vreg_l3c"; 215 regulator-min-microvolt = <1200000>; 216 regulator-max-microvolt = <1200000>; 217 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 218 regulator-allow-set-load; 219 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 220 RPMH_REGULATOR_MODE_HPM>; 221 }; 222 223 vreg_l4c: ldo4 { 224 regulator-name = "vreg_l4c"; 225 regulator-min-microvolt = <1200000>; 226 regulator-max-microvolt = <1208000>; 227 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 228 }; 229 230 vreg_l6c: ldo6 { 231 regulator-name = "vreg_l6c"; 232 regulator-min-microvolt = <1200000>; 233 regulator-max-microvolt = <1200000>; 234 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 235 regulator-allow-set-load; 236 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 237 RPMH_REGULATOR_MODE_HPM>; 238 }; 239 240 vreg_l7c: ldo7 { 241 regulator-name = "vreg_l7c"; 242 regulator-min-microvolt = <1800000>; 243 regulator-max-microvolt = <1800000>; 244 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 245 }; 246 247 vreg_l10c: ldo10 { 248 regulator-name = "vreg_l10c"; 249 regulator-min-microvolt = <2504000>; 250 regulator-max-microvolt = <2504000>; 251 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 252 regulator-allow-set-load; 253 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 254 RPMH_REGULATOR_MODE_HPM>; 255 }; 256 257 vreg_l17c: ldo17 { 258 regulator-name = "vreg_l17c"; 259 regulator-min-microvolt = <2504000>; 260 regulator-max-microvolt = <2504000>; 261 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 262 regulator-allow-set-load; 263 regulator-allowed-modes = <RPMH_REGULATOR_MODE_LPM 264 RPMH_REGULATOR_MODE_HPM>; 265 }; 266 }; 267 268 regulators-2 { 269 compatible = "qcom,pm8150-rpmh-regulators"; 270 qcom,pmic-id = "g"; 271 272 vreg_l3g: ldo3 { 273 regulator-name = "vreg_l3g"; 274 regulator-min-microvolt = <1200000>; 275 regulator-max-microvolt = <1200000>; 276 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 277 }; 278 279 vreg_l7g: ldo7 { 280 regulator-name = "vreg_l7g"; 281 regulator-min-microvolt = <1800000>; 282 regulator-max-microvolt = <1800000>; 283 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 284 }; 285 286 vreg_l8g: ldo8 { 287 regulator-name = "vreg_l8g"; 288 regulator-min-microvolt = <912000>; 289 regulator-max-microvolt = <912000>; 290 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 291 }; 292 293 vreg_l11g: ldo11 { 294 regulator-name = "vreg_l11g"; 295 regulator-min-microvolt = <912000>; 296 regulator-max-microvolt = <912000>; 297 regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>; 298 }; 299 }; 300}; 301 302&dispcc0 { 303 status = "okay"; 304}; 305 306&dispcc1 { 307 status = "okay"; 308}; 309 310&i2c12 { 311 pinctrl-0 = <&qup1_i2c4_state>; 312 pinctrl-names = "default"; 313 314 status = "okay"; 315 316 vdd_gfx: regulator@39 { 317 compatible = "maxim,max20411"; 318 reg = <0x39>; 319 320 regulator-min-microvolt = <800000>; 321 regulator-max-microvolt = <800000>; 322 323 enable-gpios = <&pmm8540a_gpios 2 GPIO_ACTIVE_HIGH>; 324 325 pinctrl-0 = <&max20411_en>; 326 pinctrl-names = "default"; 327 }; 328}; 329 330&gpucc { 331 vdd-gfx-supply = <&vdd_gfx>; 332 status = "okay"; 333}; 334 335&gmu { 336 status = "okay"; 337}; 338 339&gpu { 340 status = "okay"; 341}; 342 343&gpu_zap_shader { 344 firmware-name = "qcom/sa8295p/a690_zap.mbn"; 345}; 346 347&gpu_smmu { 348 status = "okay"; 349}; 350 351&mdss0 { 352 status = "okay"; 353}; 354 355&mdss0_dp2 { 356 status = "okay"; 357}; 358 359&mdss0_dp2_out { 360 data-lanes = <0 1 2 3>; 361 remote-endpoint = <&edp0_connector_in>; 362}; 363 364&mdss0_dp2_phy { 365 vdda-phy-supply = <&vreg_l8g>; 366 vdda-pll-supply = <&vreg_l3g>; 367 368 status = "okay"; 369}; 370 371&mdss0_dp3 { 372 status = "okay"; 373}; 374 375&mdss0_dp3_out { 376 data-lanes = <0 1 2 3>; 377 remote-endpoint = <&edp1_connector_in>; 378}; 379 380&mdss0_dp3_phy { 381 vdda-phy-supply = <&vreg_l8g>; 382 vdda-pll-supply = <&vreg_l3g>; 383 384 status = "okay"; 385}; 386 387&mdss1 { 388 status = "okay"; 389}; 390 391&mdss1_dp0 { 392 status = "okay"; 393}; 394 395&mdss1_dp0_out { 396 data-lanes = <0 1 2 3>; 397 remote-endpoint = <&dp2_connector_in>; 398}; 399 400&mdss1_dp0_phy { 401 vdda-phy-supply = <&vreg_l11g>; 402 vdda-pll-supply = <&vreg_l3g>; 403 404 status = "okay"; 405}; 406 407&mdss1_dp1 { 408 status = "okay"; 409}; 410 411&mdss1_dp1_out { 412 data-lanes = <0 1 2 3>; 413 remote-endpoint = <&dp3_connector_in>; 414}; 415 416&mdss1_dp1_phy { 417 vdda-phy-supply = <&vreg_l11g>; 418 vdda-pll-supply = <&vreg_l3g>; 419 420 status = "okay"; 421}; 422 423&mdss1_dp2 { 424 status = "okay"; 425}; 426 427&mdss1_dp2_out { 428 data-lanes = <0 1 2 3>; 429 remote-endpoint = <&edp2_connector_in>; 430}; 431 432&mdss1_dp2_phy { 433 vdda-phy-supply = <&vreg_l11g>; 434 vdda-pll-supply = <&vreg_l3g>; 435 436 status = "okay"; 437}; 438 439&mdss1_dp3 { 440 status = "okay"; 441}; 442 443&mdss1_dp3_out { 444 data-lanes = <0 1 2 3>; 445 remote-endpoint = <&edp3_connector_in>; 446}; 447 448&mdss1_dp3_phy { 449 vdda-phy-supply = <&vreg_l11g>; 450 vdda-pll-supply = <&vreg_l3g>; 451 452 status = "okay"; 453}; 454 455&pcie2a { 456 perst-gpios = <&tlmm 143 GPIO_ACTIVE_LOW>; 457 wake-gpios = <&tlmm 145 GPIO_ACTIVE_LOW>; 458 459 pinctrl-names = "default"; 460 pinctrl-0 = <&pcie2a_default>; 461 462 status = "okay"; 463}; 464 465&pcie2a_phy { 466 vdda-phy-supply = <&vreg_l11a>; 467 vdda-pll-supply = <&vreg_l3a>; 468 469 status = "okay"; 470}; 471 472&pcie3a { 473 num-lanes = <2>; 474 475 perst-gpios = <&tlmm 151 GPIO_ACTIVE_LOW>; 476 wake-gpios = <&tlmm 56 GPIO_ACTIVE_LOW>; 477 478 pinctrl-names = "default"; 479 pinctrl-0 = <&pcie3a_default>; 480 481 status = "okay"; 482}; 483 484&pcie3a_phy { 485 vdda-phy-supply = <&vreg_l11a>; 486 vdda-pll-supply = <&vreg_l3a>; 487 488 status = "okay"; 489}; 490 491&pcie3b { 492 perst-gpios = <&tlmm 153 GPIO_ACTIVE_LOW>; 493 wake-gpios = <&tlmm 130 GPIO_ACTIVE_LOW>; 494 495 pinctrl-names = "default"; 496 pinctrl-0 = <&pcie3b_default>; 497 498 status = "okay"; 499}; 500 501&pcie3b_phy { 502 vdda-phy-supply = <&vreg_l11a>; 503 vdda-pll-supply = <&vreg_l3a>; 504 505 status = "okay"; 506}; 507 508&pcie4 { 509 perst-gpios = <&tlmm 141 GPIO_ACTIVE_LOW>; 510 wake-gpios = <&tlmm 139 GPIO_ACTIVE_LOW>; 511 512 pinctrl-names = "default"; 513 pinctrl-0 = <&pcie4_default>; 514 515 status = "okay"; 516}; 517 518&pcie4_phy { 519 vdda-phy-supply = <&vreg_l11a>; 520 vdda-pll-supply = <&vreg_l3a>; 521 522 status = "okay"; 523}; 524 525&qup1 { 526 status = "okay"; 527}; 528 529&qup2 { 530 status = "okay"; 531}; 532 533&remoteproc_adsp { 534 firmware-name = "qcom/sa8540p/adsp.mbn"; 535 status = "okay"; 536}; 537 538&remoteproc_nsp0 { 539 firmware-name = "qcom/sa8540p/cdsp.mbn"; 540 status = "okay"; 541}; 542 543&remoteproc_nsp1 { 544 firmware-name = "qcom/sa8540p/cdsp1.mbn"; 545 status = "okay"; 546}; 547 548&uart17 { 549 compatible = "qcom,geni-debug-uart"; 550 status = "okay"; 551}; 552 553&ufs_mem_hc { 554 reset-gpios = <&tlmm 228 GPIO_ACTIVE_LOW>; 555 556 vcc-supply = <&vreg_l17c>; 557 vcc-max-microamp = <800000>; 558 vccq-supply = <&vreg_l6c>; 559 vccq-max-microamp = <900000>; 560 561 status = "okay"; 562}; 563 564&ufs_mem_phy { 565 vdda-phy-supply = <&vreg_l8g>; 566 vdda-pll-supply = <&vreg_l3g>; 567 568 status = "okay"; 569}; 570 571&ufs_card_hc { 572 reset-gpios = <&tlmm 229 GPIO_ACTIVE_LOW>; 573 574 vcc-supply = <&vreg_l10c>; 575 vcc-max-microamp = <800000>; 576 vccq-supply = <&vreg_l3c>; 577 vccq-max-microamp = <900000>; 578 579 status = "okay"; 580}; 581 582&ufs_card_phy { 583 vdda-phy-supply = <&vreg_l8g>; 584 vdda-pll-supply = <&vreg_l3g>; 585 586 status = "okay"; 587}; 588 589&usb_0 { 590 status = "okay"; 591}; 592 593&usb_0_dwc3 { 594 /* TODO: Define USB-C connector properly */ 595 dr_mode = "peripheral"; 596}; 597 598&usb_0_hsphy { 599 vdda-pll-supply = <&vreg_l5a>; 600 vdda18-supply = <&vreg_l7a>; 601 vdda33-supply = <&vreg_l13a>; 602 603 status = "okay"; 604}; 605 606&usb_0_qmpphy { 607 vdda-phy-supply = <&vreg_l3a>; 608 vdda-pll-supply = <&vreg_l5a>; 609 610 status = "okay"; 611}; 612 613&usb_1 { 614 status = "okay"; 615}; 616 617&usb_1_dwc3 { 618 /* TODO: Define USB-C connector properly */ 619 dr_mode = "host"; 620}; 621 622&usb_1_hsphy { 623 vdda-pll-supply = <&vreg_l1c>; 624 vdda18-supply = <&vreg_l7c>; 625 vdda33-supply = <&vreg_l2c>; 626 627 status = "okay"; 628}; 629 630&usb_1_qmpphy { 631 vdda-phy-supply = <&vreg_l4c>; 632 vdda-pll-supply = <&vreg_l1c>; 633 634 status = "okay"; 635}; 636 637&usb_2 { 638 status = "okay"; 639}; 640 641&usb_2_hsphy0 { 642 vdda-pll-supply = <&vreg_l5a>; 643 vdda18-supply = <&vreg_l7g>; 644 vdda33-supply = <&vreg_l13a>; 645 646 status = "okay"; 647}; 648 649&usb_2_hsphy1 { 650 vdda-pll-supply = <&vreg_l5a>; 651 vdda18-supply = <&vreg_l7g>; 652 vdda33-supply = <&vreg_l13a>; 653 654 status = "okay"; 655}; 656 657&usb_2_hsphy2 { 658 vdda-pll-supply = <&vreg_l5a>; 659 vdda18-supply = <&vreg_l7g>; 660 vdda33-supply = <&vreg_l13a>; 661 662 status = "okay"; 663}; 664 665&usb_2_hsphy3 { 666 vdda-pll-supply = <&vreg_l5a>; 667 vdda18-supply = <&vreg_l7g>; 668 vdda33-supply = <&vreg_l13a>; 669 670 status = "okay"; 671}; 672 673&usb_2_qmpphy0 { 674 vdda-phy-supply = <&vreg_l3a>; 675 vdda-pll-supply = <&vreg_l5a>; 676 677 status = "okay"; 678}; 679 680&usb_2_qmpphy1 { 681 vdda-phy-supply = <&vreg_l3a>; 682 vdda-pll-supply = <&vreg_l5a>; 683 684 status = "okay"; 685}; 686 687&xo_board_clk { 688 clock-frequency = <38400000>; 689}; 690 691/* PINCTRL */ 692 693&pmm8540a_gpios { 694 max20411_en: max20411-en-state { 695 pins = "gpio2"; 696 function = "normal"; 697 output-enable; 698 }; 699}; 700 701&pmm8540c_gpios { 702 usb2_en: usb2-en-state { 703 pins = "gpio9"; 704 function = "normal"; 705 qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>; 706 output-enable; 707 power-source = <0>; 708 }; 709}; 710 711&pmm8540e_gpios { 712 usb3_en: usb3-en-state { 713 pins = "gpio5"; 714 function = "normal"; 715 qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>; 716 output-enable; 717 power-source = <0>; 718 }; 719}; 720 721&pmm8540g_gpios { 722 usb4_en: usb4-en-state { 723 pins = "gpio5"; 724 function = "normal"; 725 qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>; 726 output-enable; 727 power-source = <0>; 728 }; 729 730 usb5_en: usb5-en-state { 731 pins = "gpio9"; 732 function = "normal"; 733 qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>; 734 output-enable; 735 power-source = <0>; 736 }; 737}; 738 739&tlmm { 740 pcie2a_default: pcie2a-default-state { 741 clkreq-n-pins { 742 pins = "gpio142"; 743 function = "pcie2a_clkreq"; 744 drive-strength = <2>; 745 bias-pull-up; 746 }; 747 748 perst-n-pins { 749 pins = "gpio143"; 750 function = "gpio"; 751 drive-strength = <2>; 752 bias-pull-down; 753 }; 754 755 wake-n-pins { 756 pins = "gpio145"; 757 function = "gpio"; 758 drive-strength = <2>; 759 bias-pull-up; 760 }; 761 }; 762 763 pcie3a_default: pcie3a-default-state { 764 clkreq-n-pins { 765 pins = "gpio150"; 766 function = "pcie3a_clkreq"; 767 drive-strength = <2>; 768 bias-pull-up; 769 }; 770 771 perst-n-pins { 772 pins = "gpio151"; 773 function = "gpio"; 774 drive-strength = <2>; 775 bias-pull-down; 776 }; 777 778 wake-n-pins { 779 pins = "gpio56"; 780 function = "gpio"; 781 drive-strength = <2>; 782 bias-pull-up; 783 }; 784 }; 785 786 pcie3b_default: pcie3b-default-state { 787 clkreq-n-pins { 788 pins = "gpio152"; 789 function = "pcie3b_clkreq"; 790 drive-strength = <2>; 791 bias-pull-up; 792 }; 793 794 perst-n-pins { 795 pins = "gpio153"; 796 function = "gpio"; 797 drive-strength = <2>; 798 bias-pull-down; 799 }; 800 801 wake-n-pins { 802 pins = "gpio130"; 803 function = "gpio"; 804 drive-strength = <2>; 805 bias-pull-up; 806 }; 807 }; 808 809 pcie4_default: pcie4-default-state { 810 clkreq-n-pins { 811 pins = "gpio140"; 812 function = "pcie4_clkreq"; 813 drive-strength = <2>; 814 bias-pull-up; 815 }; 816 817 perst-n-pins { 818 pins = "gpio141"; 819 function = "gpio"; 820 drive-strength = <2>; 821 bias-pull-down; 822 }; 823 824 wake-n-pins { 825 pins = "gpio139"; 826 function = "gpio"; 827 drive-strength = <2>; 828 bias-pull-up; 829 }; 830 }; 831 832 qup1_i2c4_state: qup1-i2c4-state { 833 pins = "gpio0", "gpio1"; 834 function = "qup12"; 835 drive-strength = <2>; 836 bias-pull-up; 837 }; 838}; 839