1// SPDX-License-Identifier: BSD-3-Clause 2/* 3 * Copyright (c) 2020, Yassine Oudjana <y.oudjana@protonmail.com> 4 */ 5 6#include "pm8994.dtsi" 7#include "pmi8994.dtsi" 8#include <dt-bindings/input/input.h> 9#include <dt-bindings/gpio/gpio.h> 10#include <dt-bindings/leds/common.h> 11#include <dt-bindings/pinctrl/qcom,pmic-gpio.h> 12 13/ { 14 clocks { 15 compatible = "simple-bus"; 16 17 divclk1_cdc: divclk1 { 18 compatible = "gpio-gate-clock"; 19 clocks = <&rpmcc RPM_SMD_DIV_CLK1>; 20 #clock-cells = <0>; 21 enable-gpios = <&pm8994_gpios 15 GPIO_ACTIVE_HIGH>; 22 23 pinctrl-names = "default"; 24 pinctrl-0 = <&divclk1_default>; 25 }; 26 27 divclk4: divclk4 { 28 compatible = "fixed-clock"; 29 #clock-cells = <0>; 30 clock-frequency = <32768>; 31 clock-output-names = "divclk4"; 32 33 pinctrl-names = "default"; 34 pinctrl-0 = <&divclk4_pin_a>; 35 }; 36 }; 37 38 gpio-keys { 39 compatible = "gpio-keys"; 40 41 key-vol-up { 42 label = "Volume Up"; 43 gpios = <&pm8994_gpios 2 GPIO_ACTIVE_LOW>; 44 linux,code = <KEY_VOLUMEUP>; 45 wakeup-source; 46 debounce-interval = <15>; 47 }; 48 49 key-dome { 50 label = "Home"; 51 gpios = <&tlmm 34 GPIO_ACTIVE_LOW>; 52 linux,code = <KEY_HOME>; 53 wakeup-source; 54 debounce-interval = <15>; 55 }; 56 }; 57 58 irled { 59 compatible = "pwm-ir-tx"; 60 pwms = <&pm8994_lpg 1 1000000>; 61 62 pinctrl-names = "default"; 63 pinctrl-0 = <&irled_default>; 64 }; 65 66 reserved-memory { 67 memory@88800000 { 68 reg = <0x0 0x88800000 0x0 0x1400000>; 69 no-map; 70 }; 71 72 /* This platform has all PIL regions offset by 0x1400000 */ 73 /delete-node/ mpss@88800000; 74 mpss_mem: mpss@89c00000 { 75 reg = <0x0 0x89c00000 0x0 0x6200000>; 76 no-map; 77 }; 78 79 /delete-node/ adsp@8ea00000; 80 adsp_mem: adsp@8fe00000 { 81 reg = <0x0 0x8fe00000 0x0 0x1b00000>; 82 no-map; 83 }; 84 85 /delete-node/ slpi@90500000; 86 slpi_mem: slpi@91900000 { 87 reg = <0x0 0x91900000 0x0 0xa00000>; 88 no-map; 89 }; 90 91 /delete-node/ gpu@90f00000; 92 gpu_mem: gpu@92300000 { 93 compatible = "shared-dma-pool"; 94 reg = <0x0 0x92300000 0x0 0x2000>; 95 no-map; 96 }; 97 98 /delete-node/ venus@91000000; 99 venus_mem: venus@92400000 { 100 reg = <0x0 0x92400000 0x0 0x500000>; 101 no-map; 102 }; 103 104 ramoops@92900000 { 105 compatible = "ramoops"; 106 reg = <0x0 0x92900000 0x0 0x100000>; 107 no-map; 108 109 record-size = <0x8000>; 110 console-size = <0x80000>; 111 ftrace-size = <0x20000>; 112 pmsg-size = <0x40000>; 113 }; 114 115 /delete-node/ rmtfs; 116 rmtfs@f6c00000 { 117 compatible = "qcom,rmtfs-mem"; 118 reg = <0 0xf6c00000 0 0x200000>; 119 no-map; 120 121 qcom,client-id = <1>; 122 qcom,vmid = <15>; 123 }; 124 125 /delete-node/ mba@91500000; 126 mba_mem: mba@f6f00000 { 127 reg = <0x0 0xf6f00000 0x0 0x100000>; 128 no-map; 129 }; 130 }; 131 132 vph_pwr: vph-pwr-regulator { 133 compatible = "regulator-fixed"; 134 regulator-name = "vph_pwr"; 135 regulator-min-microvolt = <3800000>; 136 regulator-max-microvolt = <3800000>; 137 regulator-always-on; 138 regulator-boot-on; 139 }; 140 141 vdd_3v2_tp: vdd-3v2-tp { 142 compatible = "regulator-fixed"; 143 regulator-name = "vdd_3v2_tp"; 144 regulator-min-microvolt = <3200000>; 145 regulator-max-microvolt = <3200000>; 146 startup-delay-us = <4000>; 147 vin-supply = <&vph_pwr>; 148 149 gpio = <&tlmm 73 0>; 150 enable-active-high; 151 }; 152 153 vdd_3v3: rome-vreg { 154 compatible = "regulator-fixed"; 155 regulator-name = "vdd_3v3"; 156 regulator-min-microvolt = <3300000>; 157 regulator-max-microvolt = <3300000>; 158 startup-delay-us = <4000>; 159 vin-supply = <&vph_pwr_bbyp>; 160 161 gpio = <&pm8994_gpios 9 0>; 162 enable-active-high; 163 pinctrl-names = "default"; 164 pinctrl-0 = <&rome_enable_default>; 165 166 /* Required by QCA6174a - vddpe-3v3 */ 167 regulator-always-on; 168 }; 169 170 /* WL_EN pin defined as a fixed regulator */ 171 wlan_en: wlan-en-1-8v { 172 compatible = "regulator-fixed"; 173 regulator-name = "wlan-en-regulator"; 174 regulator-min-microvolt = <1800000>; 175 regulator-max-microvolt = <1800000>; 176 177 gpio = <&pm8994_gpios 8 0>; 178 /* WLAN card specific delay */ 179 startup-delay-us = <70000>; 180 enable-active-high; 181 pinctrl-names = "default"; 182 pinctrl-0 = <&wlan_en_default>; 183 }; 184}; 185 186&adsp_pil { 187 status = "okay"; 188}; 189 190&blsp2_i2c2 { 191 status = "okay"; 192 label = "NFC_I2C"; 193 clock-frequency = <400000>; 194 195 nfc: pn548@28 { 196 compatible = "nxp,nxp-nci-i2c"; 197 198 reg = <0x28>; 199 200 interrupt-parent = <&tlmm>; 201 interrupts = <9 IRQ_TYPE_LEVEL_HIGH>; 202 203 enable-gpios = <&tlmm 12 GPIO_ACTIVE_HIGH>; 204 firmware-gpios = <&tlmm 21 GPIO_ACTIVE_HIGH>; 205 206 pinctrl-names = "default"; 207 pinctrl-0 = <&nfc_default>; 208 }; 209}; 210 211&blsp2_i2c3 { 212 status = "okay"; 213 label = "TYPEC_I2C"; 214 215 typec: tusb320l@47 { 216 compatible = "ti,tusb320l"; 217 reg = <0x47>; 218 interrupt-parent = <&tlmm>; 219 interrupts = <63 IRQ_TYPE_EDGE_RISING>; 220 }; 221}; 222 223&blsp2_i2c6 { 224 status = "okay"; 225 label = "MSM_TS_I2C"; 226}; 227 228&blsp1_uart2 { 229 status = "okay"; 230 label = "QCA_UART"; 231 232 bluetooth: qca6174a { 233 compatible = "qcom,qca6174-bt"; 234 235 enable-gpios = <&pm8994_gpios 19 GPIO_ACTIVE_HIGH>; 236 clocks = <&divclk4>; 237 }; 238}; 239 240&dsi0 { 241 status = "okay"; 242 243 vdd-supply = <&vreg_l2a_1p25>; 244 vddio-supply = <&vreg_l14a_1p8>; 245 246 pinctrl-names = "default", "sleep"; 247 pinctrl-0 = <&mdss_dsi_default &mdss_te_default>; 248 pinctrl-1 = <&mdss_dsi_sleep &mdss_te_sleep>; 249}; 250 251&dsi0_out { 252 status = "okay"; 253 254 data-lanes = <0 1 2 3>; 255}; 256 257&dsi0_phy { 258 status = "okay"; 259 260 vcca-supply = <&vreg_l28a_0p925>; 261}; 262 263&gpu { 264 status = "okay"; 265}; 266 267&mdss { 268 status = "okay"; 269}; 270 271&mmcc { 272 vdd-gfx-supply = <&vdd_gfx>; 273}; 274 275&mss_pil { 276 status = "okay"; 277 278 pll-supply = <&vreg_l12a_1p8>; 279}; 280 281&pcie0 { 282 status = "okay"; 283 284 /* Supplied by vdd_3v3, but choose wlan_en to drive enable pin high */ 285 vddpe-3v3-supply = <&wlan_en>; 286 vdda-supply = <&vreg_l28a_0p925>; 287 288 perst-gpios = <&tlmm 35 GPIO_ACTIVE_LOW>; 289 wake-gpios = <&tlmm 37 GPIO_ACTIVE_HIGH>; 290}; 291 292&pcie_phy { 293 status = "okay"; 294 295 vdda-phy-supply = <&vreg_l28a_0p925>; 296 vdda-pll-supply = <&vreg_l12a_1p8>; 297}; 298 299&pm8994_resin { 300 status = "okay"; 301 302 linux,code = <KEY_VOLUMEDOWN>; 303}; 304 305&pm8994_lpg { 306 status = "okay"; 307 308 qcom,power-source = <1>; 309}; 310 311&pmi8994_lpg { 312 status = "okay"; 313 314 qcom,power-source = <1>; 315 316 multi-led { 317 color = <LED_COLOR_ID_RGB>; 318 function = LED_FUNCTION_STATUS; 319 320 #address-cells = <1>; 321 #size-cells = <0>; 322 323 led@1 { 324 reg = <1>; 325 color = <LED_COLOR_ID_BLUE>; 326 }; 327 328 led@2 { 329 reg = <2>; 330 color = <LED_COLOR_ID_GREEN>; 331 }; 332 333 led@3 { 334 reg = <3>; 335 color = <LED_COLOR_ID_RED>; 336 }; 337 }; 338}; 339 340&slpi_pil { 341 status = "okay"; 342 343 px-supply = <&vreg_lvs2a_1p8>; 344}; 345 346&usb3 { 347 status = "okay"; 348 extcon = <&typec>; 349 350 qcom,select-utmi-as-pipe-clk; 351}; 352 353&usb3_dwc3 { 354 extcon = <&typec>; 355 356 /* usb3-phy is not used on this device */ 357 phys = <&hsusb_phy1>; 358 phy-names = "usb2-phy"; 359 360 maximum-speed = "high-speed"; 361 snps,is-utmi-l1-suspend; 362 snps,usb2-gadget-lpm-disable; 363 snps,hird-threshold = /bits/ 8 <0>; 364}; 365 366&hsusb_phy1 { 367 status = "okay"; 368 extcon = <&typec>; 369 370 vdda-pll-supply = <&vreg_l12a_1p8>; 371 vdda-phy-dpdm-supply = <&vreg_l24a_3p075>; 372}; 373 374&ufshc { 375 status = "okay"; 376 377 vcc-supply = <&vreg_l20a_2p95>; 378 vccq-supply = <&vreg_l25a_1p2>; 379 vccq2-supply = <&vreg_s4a_1p8>; 380 381 vcc-max-microamp = <600000>; 382 vccq-max-microamp = <450000>; 383 vccq2-max-microamp = <450000>; 384}; 385 386&ufsphy { 387 status = "okay"; 388 389 vdda-phy-supply = <&vreg_l28a_0p925>; 390 vdda-pll-supply = <&vreg_l12a_1p8>; 391 vddp-ref-clk-supply = <&vreg_l25a_1p2>; 392}; 393 394&venus { 395 status = "okay"; 396}; 397 398&wcd9335 { 399 clock-names = "mclk", "slimbus"; 400 clocks = <&divclk1_cdc>, 401 <&rpmcc RPM_SMD_BB_CLK1>; 402 403 vdd-buck-supply = <&vreg_s4a_1p8>; 404 vdd-buck-sido-supply = <&vreg_s4a_1p8>; 405 vdd-rx-supply = <&vreg_s4a_1p8>; 406 vdd-tx-supply = <&vreg_s4a_1p8>; 407 vdd-vbat-supply = <&vph_pwr>; 408 vdd-micbias-supply = <&vph_pwr_bbyp>; 409 vdd-io-supply = <&vreg_s4a_1p8>; 410}; 411 412&rpm_requests { 413 regulators-0 { 414 compatible = "qcom,rpm-pm8994-regulators"; 415 416 vdd_s1-supply = <&vph_pwr>; 417 vdd_s2-supply = <&vph_pwr>; 418 vdd_s3-supply = <&vph_pwr>; 419 vdd_s4-supply = <&vph_pwr>; 420 vdd_s5-supply = <&vph_pwr>; 421 vdd_s6-supply = <&vph_pwr>; 422 vdd_s7-supply = <&vph_pwr>; 423 vdd_s8-supply = <&vph_pwr>; 424 vdd_s9-supply = <&vph_pwr>; 425 vdd_s10-supply = <&vph_pwr>; 426 vdd_s11-supply = <&vph_pwr>; 427 vdd_s12-supply = <&vph_pwr>; 428 vdd_l1-supply = <&vreg_s1b_1p025>; 429 vdd_l2_l26_l28-supply = <&vreg_s3a_1p3>; 430 vdd_l3_l11-supply = <&vreg_s3a_1p3>; 431 vdd_l4_l27_l31-supply = <&vreg_s3a_1p3>; 432 vdd_l5_l7-supply = <&vreg_s5a_2p15>; 433 vdd_l6_l12_l32-supply = <&vreg_s5a_2p15>; 434 vdd_l8_l16_l30-supply = <&vph_pwr>; 435 vdd_l9_l10_l18_l22-supply = <&vph_pwr_bbyp>; 436 vdd_l13_l19_l23_l24-supply = <&vph_pwr_bbyp>; 437 vdd_l14_l15-supply = <&vreg_s5a_2p15>; 438 vdd_l17_l29-supply = <&vph_pwr_bbyp>; 439 vdd_l20_l21-supply = <&vph_pwr_bbyp>; 440 vdd_l25-supply = <&vreg_s3a_1p3>; 441 vdd_lvs1_2-supply = <&vreg_s4a_1p8>; 442 443 vreg_s3a_1p3: s3 { 444 regulator-name = "vreg_s3a_1p3"; 445 regulator-min-microvolt = <1300000>; 446 regulator-max-microvolt = <1300000>; 447 448 /* Required by QCA6174a - vdd-core */ 449 regulator-always-on; 450 }; 451 vreg_s4a_1p8: s4 { 452 regulator-name = "vreg_s4a_1p8"; 453 regulator-min-microvolt = <1800000>; 454 regulator-max-microvolt = <1800000>; 455 regulator-allow-set-load; 456 457 /* Required by QCA6174a - vddio */ 458 regulator-always-on; 459 }; 460 vreg_s5a_2p15: s5 { 461 regulator-name = "vreg_s5a_2p15"; 462 regulator-min-microvolt = <2150000>; 463 regulator-max-microvolt = <2150000>; 464 }; 465 vreg_s7a_0p8: s7 { 466 regulator-name = "vreg_s7a_0p8"; 467 regulator-min-microvolt = <800000>; 468 regulator-max-microvolt = <800000>; 469 }; 470 vreg_l1a_1p0: l1 { 471 regulator-name = "vreg_l1a_1p0"; 472 regulator-min-microvolt = <1000000>; 473 regulator-max-microvolt = <1000000>; 474 }; 475 vreg_l2a_1p25: l2 { 476 regulator-name = "vreg_l2a_1p25"; 477 regulator-min-microvolt = <1250000>; 478 regulator-max-microvolt = <1250000>; 479 }; 480 vreg_l4a_1p225: l4 { 481 regulator-name = "vreg_l4a_1p225"; 482 regulator-min-microvolt = <1225000>; 483 regulator-max-microvolt = <1225000>; 484 }; 485 vreg_l6a_1p8: l6 { 486 regulator-name = "vreg_l6a_1p8"; 487 regulator-min-microvolt = <1800000>; 488 regulator-max-microvolt = <1800000>; 489 }; 490 vreg_l8a_1p8: l8 { 491 regulator-name = "vreg_l8a_1p8"; 492 regulator-min-microvolt = <1800000>; 493 regulator-max-microvolt = <1800000>; 494 }; 495 vreg_l9a_1p8: l9 { 496 regulator-name = "vreg_l9a_1p8"; 497 regulator-min-microvolt = <1800000>; 498 regulator-max-microvolt = <1800000>; 499 }; 500 vreg_l10a_1p8: l10 { 501 regulator-name = "vreg_l10a_1p8"; 502 regulator-min-microvolt = <1800000>; 503 regulator-max-microvolt = <1800000>; 504 }; 505 vreg_l12a_1p8: l12 { 506 regulator-name = "vreg_l12a_1p8"; 507 regulator-min-microvolt = <1800000>; 508 regulator-max-microvolt = <1800000>; 509 regulator-allow-set-load; 510 }; 511 vreg_l13a_2p95: l13 { 512 regulator-name = "vreg_l13a_2p95"; 513 regulator-min-microvolt = <1800000>; 514 regulator-max-microvolt = <2950000>; 515 }; 516 vreg_l14a_1p8: l14 { 517 regulator-name = "vreg_l14a_1p8"; 518 regulator-min-microvolt = <1800000>; 519 regulator-max-microvolt = <1800000>; 520 }; 521 vreg_l15a_1p8: l15 { 522 regulator-name = "vreg_l15a_1p8"; 523 regulator-min-microvolt = <1800000>; 524 regulator-max-microvolt = <1800000>; 525 }; 526 vreg_l16a_2p7: l16 { 527 regulator-name = "vreg_l16a_2p7"; 528 regulator-min-microvolt = <2700000>; 529 regulator-max-microvolt = <2700000>; 530 }; 531 vreg_l19a_3p3: l19 { 532 regulator-name = "vreg_l19a_3p3"; 533 regulator-min-microvolt = <3000000>; 534 regulator-max-microvolt = <3000000>; 535 }; 536 vreg_l20a_2p95: l20 { 537 regulator-name = "vreg_l20a_2p95"; 538 regulator-min-microvolt = <2950000>; 539 regulator-max-microvolt = <2950000>; 540 regulator-allow-set-load; 541 }; 542 vreg_l21a_2p95: l21 { 543 regulator-name = "vreg_l21a_2p95"; 544 regulator-min-microvolt = <3300000>; 545 regulator-max-microvolt = <3300000>; 546 regulator-always-on; 547 }; 548 vreg_l23a_2p8: l23 { 549 regulator-name = "vreg_l23a_2p8"; 550 regulator-min-microvolt = <2800000>; 551 regulator-max-microvolt = <2800000>; 552 }; 553 vreg_l24a_3p075: l24 { 554 regulator-name = "vreg_l24a_3p075"; 555 regulator-min-microvolt = <3075000>; 556 regulator-max-microvolt = <3075000>; 557 }; 558 vreg_l25a_1p2: l25 { 559 regulator-name = "vreg_l25a_1p2"; 560 regulator-min-microvolt = <1200000>; 561 regulator-max-microvolt = <1200000>; 562 regulator-allow-set-load; 563 }; 564 vreg_l27a_1p2: l27 { 565 regulator-name = "vreg_l27a_1p2"; 566 regulator-min-microvolt = <1200000>; 567 regulator-max-microvolt = <1200000>; 568 }; 569 vreg_l28a_0p925: l28 { 570 regulator-name = "vreg_l28a_0p925"; 571 regulator-min-microvolt = <925000>; 572 regulator-max-microvolt = <925000>; 573 regulator-allow-set-load; 574 }; 575 vreg_l30a_1p8: l30 { 576 regulator-name = "vreg_l30a_1p8"; 577 regulator-min-microvolt = <1800000>; 578 regulator-max-microvolt = <1800000>; 579 580 /* Required by QCA6174a - vddio-xtal */ 581 regulator-always-on; 582 }; 583 vreg_l32a_1p8: l32 { 584 regulator-name = "vreg_l32a_1p8"; 585 regulator-min-microvolt = <1800000>; 586 regulator-max-microvolt = <1800000>; 587 }; 588 vreg_lvs1a_1p8: lvs1 { 589 regulator-min-microvolt = <1800000>; 590 regulator-max-microvolt = <1800000>; 591 }; 592 vreg_lvs2a_1p8: lvs2 { 593 regulator-min-microvolt = <1800000>; 594 regulator-max-microvolt = <1800000>; 595 }; 596 }; 597 598 regulators-1 { 599 compatible = "qcom,rpm-pmi8994-regulators"; 600 601 vdd_s1-supply = <&vph_pwr>; 602 vdd_s2-supply = <&vph_pwr>; 603 vdd_s3-supply = <&vph_pwr>; 604 vdd_bst_byp-supply = <&vph_pwr>; 605 606 vreg_s1b_1p025: s1 { 607 regulator-name = "vreg_s1b_1p025"; 608 regulator-min-microvolt = <1025000>; 609 regulator-max-microvolt = <1025000>; 610 }; 611 612 vph_pwr_bbyp: boost-bypass { 613 regulator-name = "vph_pwr_bbyp"; 614 regulator-min-microvolt = <3150000>; 615 regulator-max-microvolt = <3600000>; 616 }; 617 }; 618}; 619 620&pm8994_spmi_regulators { 621 qcom,saw-reg = <&saw3>; 622 s8 { 623 qcom,saw-slave; 624 }; 625 s9 { 626 qcom,saw-slave; 627 }; 628 s10 { 629 qcom,saw-slave; 630 }; 631 vreg_apc_0p8: s11 { 632 qcom,saw-leader; 633 regulator-name = "vreg_apc_0p8"; 634 regulator-min-microvolt = <470000>; 635 regulator-max-microvolt = <1140000>; 636 regulator-max-step-microvolt = <150000>; 637 regulator-always-on; 638 }; 639}; 640 641&pmi8994_spmi_regulators { 642 vdd_gfx: s2 { 643 regulator-name = "vdd_gfx"; 644 regulator-min-microvolt = <400000>; 645 regulator-max-microvolt = <1015000>; 646 regulator-enable-ramp-delay = <500>; 647 }; 648}; 649 650&pm8994_gpios { 651 irled_default: irled-default-state { 652 pins = "gpio5"; 653 function = PMIC_GPIO_FUNC_FUNC1; 654 output-low; 655 qcom,drive-strength = <PMIC_GPIO_STRENGTH_HIGH>; 656 power-source = <PM8994_GPIO_S4>; 657 bias-disable; 658 }; 659 660 wlan_en_default: wlan-en-state { 661 pins = "gpio8"; 662 function = PMIC_GPIO_FUNC_NORMAL; 663 output-low; 664 qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>; 665 power-source = <PM8994_GPIO_S4>; 666 bias-disable; 667 }; 668 669 rome_enable_default: rome-enable-state { 670 pins = "gpio9"; 671 function = PMIC_GPIO_FUNC_NORMAL; 672 output-high; 673 qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>; 674 power-source = <PM8994_GPIO_VPH>; 675 }; 676 677 divclk1_default: divclk1-state { 678 pins = "gpio15"; 679 function = PMIC_GPIO_FUNC_FUNC1; 680 bias-disable; 681 power-source = <PM8994_GPIO_S4>; 682 qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>; 683 }; 684 685 divclk4_pin_a: divclk4-state { 686 pins = "gpio18"; 687 function = PMIC_GPIO_FUNC_FUNC2; 688 bias-disable; 689 power-source = <PM8994_GPIO_S4>; 690 }; 691}; 692 693&tlmm { 694 mdss_dsi_default: mdss-dsi-default-state { 695 pins = "gpio8"; 696 function = "gpio"; 697 drive-strength = <8>; 698 bias-disable; 699 }; 700 701 mdss_dsi_sleep: mdss-dsi-sleep-state { 702 pins = "gpio8"; 703 function = "gpio"; 704 drive-strength = <2>; 705 bias-pull-down; 706 }; 707 708 mdss_te_default: mdss-te-default-state { 709 pins = "gpio10"; 710 function = "mdp_vsync"; 711 drive-strength = <2>; 712 bias-pull-down; 713 }; 714 715 mdss_te_sleep: mdss-te-sleep-state { 716 pins = "gpio10"; 717 function = "mdp_vsync"; 718 drive-strength = <2>; 719 bias-pull-down; 720 }; 721 722 nfc_default: nfc-default-state { 723 pins = "gpio12", "gpio21"; 724 function = "gpio"; 725 drive-strength = <16>; 726 bias-pull-up; 727 }; 728}; 729