1// SPDX-License-Identifier: BSD-3-Clause 2/* 3 * sc7280 IDP board device tree source (common between SKU1 and SKU2) 4 * 5 * Copyright (c) 2021, The Linux Foundation. All rights reserved. 6 */ 7 8#include <dt-bindings/iio/qcom,spmi-adc7-pmk8350.h> 9#include <dt-bindings/input/linux-event-codes.h> 10#include "sc7280.dtsi" 11#include "pm7325.dtsi" 12#include "pm8350c.dtsi" 13#include "pmk8350.dtsi" 14 15#include "sc7280-chrome-common.dtsi" 16#include "sc7280-herobrine-lte-sku.dtsi" 17 18/ { 19 aliases { 20 bluetooth0 = &bluetooth; 21 serial1 = &uart7; 22 wifi0 = &wifi; 23 }; 24 25 max98360a: audio-codec-0 { 26 compatible = "maxim,max98360a"; 27 pinctrl-names = "default"; 28 pinctrl-0 = <&_en>; 29 sdmode-gpios = <&tlmm 63 GPIO_ACTIVE_HIGH>; 30 #sound-dai-cells = <0>; 31 }; 32 33 wcd9385: audio-codec-1 { 34 compatible = "qcom,wcd9385-codec"; 35 pinctrl-names = "default", "sleep"; 36 pinctrl-0 = <&wcd_reset_n>; 37 pinctrl-1 = <&wcd_reset_n_sleep>; 38 39 reset-gpios = <&tlmm 83 GPIO_ACTIVE_LOW>; 40 41 qcom,rx-device = <&wcd_rx>; 42 qcom,tx-device = <&wcd_tx>; 43 44 vdd-rxtx-supply = <&vreg_l18b_1p8>; 45 vdd-io-supply = <&vreg_l18b_1p8>; 46 vdd-buck-supply = <&vreg_l17b_1p8>; 47 vdd-mic-bias-supply = <&vreg_bob>; 48 49 qcom,micbias1-microvolt = <1800000>; 50 qcom,micbias2-microvolt = <1800000>; 51 qcom,micbias3-microvolt = <1800000>; 52 qcom,micbias4-microvolt = <1800000>; 53 54 qcom,mbhc-buttons-vthreshold-microvolt = <75000 150000 237000 500000 500000 55 500000 500000 500000>; 56 qcom,mbhc-headset-vthreshold-microvolt = <1700000>; 57 qcom,mbhc-headphone-vthreshold-microvolt = <50000>; 58 #sound-dai-cells = <1>; 59 }; 60 61 gpio-keys { 62 compatible = "gpio-keys"; 63 label = "gpio-keys"; 64 65 pinctrl-names = "default"; 66 pinctrl-0 = <&key_vol_up_default>; 67 68 key-volume-up { 69 label = "volume_up"; 70 gpios = <&pm7325_gpios 6 GPIO_ACTIVE_LOW>; 71 linux,input-type = <1>; 72 linux,code = <KEY_VOLUMEUP>; 73 wakeup-source; 74 debounce-interval = <15>; 75 linux,can-disable; 76 }; 77 }; 78 79 nvme_3v3_regulator: nvme-3v3-regulator { 80 compatible = "regulator-fixed"; 81 regulator-name = "VLDO_3V3"; 82 83 regulator-min-microvolt = <3300000>; 84 regulator-max-microvolt = <3300000>; 85 86 enable-active-high; 87 pinctrl-names = "default"; 88 pinctrl-0 = <&nvme_pwren>; 89 }; 90 91 sound: sound { 92 compatible = "google,sc7280-herobrine"; 93 model = "sc7280-wcd938x-max98360a-1mic"; 94 95 audio-routing = 96 "IN1_HPHL", "HPHL_OUT", 97 "IN2_HPHR", "HPHR_OUT", 98 "AMIC1", "MIC BIAS1", 99 "AMIC2", "MIC BIAS2", 100 "VA DMIC0", "MIC BIAS3", 101 "VA DMIC1", "MIC BIAS3", 102 "VA DMIC2", "MIC BIAS1", 103 "VA DMIC3", "MIC BIAS1", 104 "TX SWR_ADC0", "ADC1_OUTPUT", 105 "TX SWR_ADC1", "ADC2_OUTPUT", 106 "TX SWR_ADC2", "ADC3_OUTPUT", 107 "TX SWR_DMIC0", "DMIC1_OUTPUT", 108 "TX SWR_DMIC1", "DMIC2_OUTPUT", 109 "TX SWR_DMIC2", "DMIC3_OUTPUT", 110 "TX SWR_DMIC3", "DMIC4_OUTPUT", 111 "TX SWR_DMIC4", "DMIC5_OUTPUT", 112 "TX SWR_DMIC5", "DMIC6_OUTPUT", 113 "TX SWR_DMIC6", "DMIC7_OUTPUT", 114 "TX SWR_DMIC7", "DMIC8_OUTPUT"; 115 116 #address-cells = <1>; 117 #size-cells = <0>; 118 119 dai-link@0 { 120 link-name = "MAX98360A"; 121 reg = <0>; 122 123 cpu { 124 sound-dai = <&lpass_cpu MI2S_SECONDARY>; 125 }; 126 127 codec { 128 sound-dai = <&max98360a>; 129 }; 130 }; 131 132 dai-link@1 { 133 link-name = "DisplayPort"; 134 reg = <1>; 135 136 cpu { 137 sound-dai = <&lpass_cpu LPASS_DP_RX>; 138 }; 139 140 codec { 141 sound-dai = <&mdss_dp>; 142 }; 143 }; 144 145 dai-link@2 { 146 link-name = "WCD9385 Playback"; 147 reg = <2>; 148 149 cpu { 150 sound-dai = <&lpass_cpu LPASS_CDC_DMA_RX0>; 151 }; 152 153 codec { 154 sound-dai = <&wcd9385 0>, <&swr0 0>, <&lpass_rx_macro 0>; 155 }; 156 }; 157 158 dai-link@3 { 159 link-name = "WCD9385 Capture"; 160 reg = <3>; 161 162 cpu { 163 sound-dai = <&lpass_cpu LPASS_CDC_DMA_TX3>; 164 }; 165 166 codec { 167 sound-dai = <&wcd9385 1>, <&swr1 0>, <&lpass_tx_macro 0>; 168 }; 169 }; 170 171 dai-link@4 { 172 link-name = "DMIC"; 173 reg = <4>; 174 175 cpu { 176 sound-dai = <&lpass_cpu LPASS_CDC_DMA_VA_TX0>; 177 }; 178 179 codec { 180 sound-dai = <&lpass_va_macro 0>; 181 }; 182 }; 183 }; 184}; 185 186&apps_rsc { 187 regulators-0 { 188 compatible = "qcom,pm7325-rpmh-regulators"; 189 qcom,pmic-id = "b"; 190 191 vreg_s1b_1p8: smps1 { 192 regulator-min-microvolt = <1856000>; 193 regulator-max-microvolt = <2040000>; 194 }; 195 196 vreg_s7b_0p9: smps7 { 197 regulator-min-microvolt = <535000>; 198 regulator-max-microvolt = <1120000>; 199 }; 200 201 vreg_s8b_1p2: smps8 { 202 regulator-min-microvolt = <1256000>; 203 regulator-max-microvolt = <1500000>; 204 }; 205 206 vreg_l1b_0p8: ldo1 { 207 regulator-min-microvolt = <825000>; 208 regulator-max-microvolt = <925000>; 209 }; 210 211 vreg_l2b_3p0: ldo2 { 212 regulator-min-microvolt = <2700000>; 213 regulator-max-microvolt = <3544000>; 214 }; 215 216 vreg_l6b_1p2: ldo6 { 217 regulator-min-microvolt = <1140000>; 218 regulator-max-microvolt = <1260000>; 219 }; 220 221 vreg_l7b_2p9: ldo7 { 222 regulator-min-microvolt = <2960000>; 223 regulator-max-microvolt = <2960000>; 224 }; 225 226 vreg_l8b_0p9: ldo8 { 227 regulator-min-microvolt = <870000>; 228 regulator-max-microvolt = <970000>; 229 }; 230 231 vreg_l9b_1p2: ldo9 { 232 regulator-min-microvolt = <1080000>; 233 regulator-max-microvolt = <1304000>; 234 }; 235 236 vreg_l11b_1p7: ldo11 { 237 regulator-min-microvolt = <1504000>; 238 regulator-max-microvolt = <2000000>; 239 }; 240 241 vreg_l12b_0p8: ldo12 { 242 regulator-min-microvolt = <751000>; 243 regulator-max-microvolt = <824000>; 244 }; 245 246 vreg_l13b_0p8: ldo13 { 247 regulator-min-microvolt = <530000>; 248 regulator-max-microvolt = <824000>; 249 }; 250 251 vreg_l14b_1p2: ldo14 { 252 regulator-min-microvolt = <1080000>; 253 regulator-max-microvolt = <1304000>; 254 }; 255 256 vreg_l15b_0p8: ldo15 { 257 regulator-min-microvolt = <765000>; 258 regulator-max-microvolt = <1020000>; 259 }; 260 261 vreg_l16b_1p2: ldo16 { 262 regulator-min-microvolt = <1100000>; 263 regulator-max-microvolt = <1300000>; 264 }; 265 266 vreg_l17b_1p8: ldo17 { 267 regulator-min-microvolt = <1700000>; 268 regulator-max-microvolt = <1900000>; 269 }; 270 271 vreg_l18b_1p8: ldo18 { 272 regulator-min-microvolt = <1800000>; 273 regulator-max-microvolt = <2000000>; 274 }; 275 276 vreg_l19b_1p8: ldo19 { 277 regulator-min-microvolt = <1800000>; 278 regulator-max-microvolt = <1800000>; 279 }; 280 }; 281 282 regulators-1 { 283 compatible = "qcom,pm8350c-rpmh-regulators"; 284 qcom,pmic-id = "c"; 285 286 vreg_s1c_2p2: smps1 { 287 regulator-min-microvolt = <2190000>; 288 regulator-max-microvolt = <2210000>; 289 }; 290 291 vreg_s9c_1p0: smps9 { 292 regulator-min-microvolt = <1010000>; 293 regulator-max-microvolt = <1170000>; 294 }; 295 296 vreg_l1c_1p8: ldo1 { 297 regulator-min-microvolt = <1800000>; 298 regulator-max-microvolt = <1980000>; 299 }; 300 301 vreg_l2c_1p8: ldo2 { 302 regulator-min-microvolt = <1620000>; 303 regulator-max-microvolt = <1980000>; 304 }; 305 306 vreg_l3c_3p0: ldo3 { 307 regulator-min-microvolt = <2800000>; 308 regulator-max-microvolt = <3540000>; 309 }; 310 311 vreg_l4c_1p8: ldo4 { 312 regulator-min-microvolt = <1620000>; 313 regulator-max-microvolt = <3300000>; 314 }; 315 316 vreg_l5c_1p8: ldo5 { 317 regulator-min-microvolt = <1620000>; 318 regulator-max-microvolt = <3300000>; 319 }; 320 321 vreg_l6c_2p9: ldo6 { 322 regulator-min-microvolt = <1800000>; 323 regulator-max-microvolt = <2950000>; 324 }; 325 326 vreg_l7c_3p0: ldo7 { 327 regulator-min-microvolt = <3000000>; 328 regulator-max-microvolt = <3544000>; 329 }; 330 331 vreg_l8c_1p8: ldo8 { 332 regulator-min-microvolt = <1620000>; 333 regulator-max-microvolt = <2000000>; 334 }; 335 336 vreg_l9c_2p9: ldo9 { 337 regulator-min-microvolt = <2960000>; 338 regulator-max-microvolt = <2960000>; 339 }; 340 341 vreg_l10c_0p8: ldo10 { 342 regulator-min-microvolt = <720000>; 343 regulator-max-microvolt = <1050000>; 344 }; 345 346 vreg_l11c_2p8: ldo11 { 347 regulator-min-microvolt = <2800000>; 348 regulator-max-microvolt = <3544000>; 349 }; 350 351 vreg_l12c_1p8: ldo12 { 352 regulator-min-microvolt = <1650000>; 353 regulator-max-microvolt = <2000000>; 354 }; 355 356 vreg_l13c_3p0: ldo13 { 357 regulator-min-microvolt = <2700000>; 358 regulator-max-microvolt = <3544000>; 359 }; 360 361 vreg_bob: bob { 362 regulator-min-microvolt = <3008000>; 363 regulator-max-microvolt = <3960000>; 364 }; 365 }; 366}; 367 368&gpi_dma0 { 369 status = "okay"; 370}; 371 372&gpi_dma1 { 373 status = "okay"; 374}; 375 376&lpass_cpu { 377 status = "okay"; 378 379 pinctrl-names = "default"; 380 pinctrl-0 = <&mi2s1_data0>, <&mi2s1_sclk>, <&mi2s1_ws>; 381 382 dai-link@1 { 383 reg = <MI2S_SECONDARY>; 384 qcom,playback-sd-lines = <0>; 385 }; 386 387 dai-link@5 { 388 reg = <LPASS_DP_RX>; 389 }; 390 391 dai-link@6 { 392 reg = <LPASS_CDC_DMA_RX0>; 393 }; 394 395 dai-link@19 { 396 reg = <LPASS_CDC_DMA_TX3>; 397 }; 398 399 dai-link@25 { 400 reg = <LPASS_CDC_DMA_VA_TX0>; 401 }; 402}; 403 404&lpass_rx_macro { 405 status = "okay"; 406}; 407 408&lpass_tx_macro { 409 status = "okay"; 410}; 411 412&lpass_va_macro { 413 status = "okay"; 414 vdd-micb-supply = <&vreg_bob>; 415}; 416 417&pcie1 { 418 status = "okay"; 419 perst-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>; 420 421 vddpe-3v3-supply = <&nvme_3v3_regulator>; 422 423 pinctrl-names = "default"; 424 pinctrl-0 = <&pcie1_reset_n>, <&pcie1_wake_n>; 425}; 426 427&pcie1_phy { 428 status = "okay"; 429 430 vdda-phy-supply = <&vreg_l10c_0p8>; 431 vdda-pll-supply = <&vreg_l6b_1p2>; 432}; 433 434&pmk8350_vadc { 435 channel@3 { 436 reg = <PMK8350_ADC7_DIE_TEMP>; 437 label = "pmk8350_die_temp"; 438 qcom,pre-scaling = <1 1>; 439 }; 440}; 441 442&qfprom { 443 vcc-supply = <&vreg_l1c_1p8>; 444}; 445 446&qupv3_id_0 { 447 status = "okay"; 448}; 449 450&qupv3_id_1 { 451 status = "okay"; 452}; 453 454&sdhc_1 { 455 status = "okay"; 456 457 non-removable; 458 no-sd; 459 no-sdio; 460 461 vmmc-supply = <&vreg_l7b_2p9>; 462 vqmmc-supply = <&vreg_l19b_1p8>; 463}; 464 465&sdhc_2 { 466 status = "okay"; 467 468 pinctrl-0 = <&sdc2_clk>, <&sdc2_cmd>, <&sdc2_data>, <&sd_cd>; 469 pinctrl-1 = <&sdc2_clk_sleep>, <&sdc2_cmd_sleep>, <&sdc2_data_sleep>, <&sd_cd>; 470 471 vmmc-supply = <&vreg_l9c_2p9>; 472 vqmmc-supply = <&vreg_l6c_2p9>; 473 474 cd-gpios = <&tlmm 91 GPIO_ACTIVE_LOW>; 475}; 476 477&swr0 { 478 status = "okay"; 479 480 wcd_rx: codec@0,4 { 481 compatible = "sdw20217010d00"; 482 reg = <0 4>; 483 qcom,rx-port-mapping = <1 2 3 4 5>; 484 }; 485}; 486 487&swr1 { 488 status = "okay"; 489 490 wcd_tx: codec@0,3 { 491 compatible = "sdw20217010d00"; 492 reg = <0 3>; 493 qcom,tx-port-mapping = <1 2 3 4>; 494 }; 495}; 496 497&uart5 { 498 compatible = "qcom,geni-debug-uart"; 499 status = "okay"; 500}; 501 502&ufs_mem_hc { 503 reset-gpios = <&tlmm 175 GPIO_ACTIVE_LOW>; 504 vcc-supply = <&vreg_l7b_2p9>; 505 vcc-max-microamp = <800000>; 506 vccq-supply = <&vreg_l9b_1p2>; 507 vccq-max-microamp = <900000>; 508 vccq2-supply = <&vreg_l9b_1p2>; 509 vccq2-max-microamp = <900000>; 510 511 status = "okay"; 512}; 513 514&ufs_mem_phy { 515 vdda-phy-supply = <&vreg_l10c_0p8>; 516 vdda-pll-supply = <&vreg_l6b_1p2>; 517 518 status = "okay"; 519}; 520 521&usb_1 { 522 status = "okay"; 523}; 524 525&usb_1_dwc3 { 526 dr_mode = "host"; 527}; 528 529&usb_1_hsphy { 530 status = "okay"; 531 532 vdda-pll-supply = <&vreg_l10c_0p8>; 533 vdda33-supply = <&vreg_l2b_3p0>; 534 vdda18-supply = <&vreg_l1c_1p8>; 535 qcom,hs-rise-fall-time-bp = <0>; 536 qcom,squelch-detector-bp = <(-2090)>; 537 qcom,hs-disconnect-bp = <1743>; 538 qcom,hs-amplitude-bp = <1780>; 539 qcom,hs-crossover-voltage-microvolt = <(-31000)>; 540 qcom,hs-output-impedance-micro-ohms = <2600000>; 541}; 542 543&usb_1_qmpphy { 544 status = "okay"; 545 546 vdda-phy-supply = <&vreg_l6b_1p2>; 547 vdda-pll-supply = <&vreg_l1b_0p8>; 548}; 549 550&uart7 { 551 status = "okay"; 552 553 /delete-property/interrupts; 554 interrupts-extended = <&intc GIC_SPI 608 IRQ_TYPE_LEVEL_HIGH>, 555 <&tlmm 31 IRQ_TYPE_EDGE_FALLING>; 556 pinctrl-names = "default", "sleep"; 557 pinctrl-1 = <&qup_uart7_sleep_cts>, <&qup_uart7_sleep_rts>, <&qup_uart7_sleep_tx>, <&qup_uart7_sleep_rx>; 558 559 bluetooth: bluetooth { 560 compatible = "qcom,wcn6750-bt"; 561 pinctrl-names = "default"; 562 pinctrl-0 = <&bt_en>, <&sw_ctrl>; 563 enable-gpios = <&tlmm 85 GPIO_ACTIVE_HIGH>; 564 swctrl-gpios = <&tlmm 86 GPIO_ACTIVE_HIGH>; 565 vddaon-supply = <&vreg_s7b_0p9>; 566 vddbtcxmx-supply = <&vreg_s7b_0p9>; 567 vddrfacmn-supply = <&vreg_s7b_0p9>; 568 vddrfa0p8-supply = <&vreg_s7b_0p9>; 569 vddrfa1p7-supply = <&vreg_s1b_1p8>; 570 vddrfa1p2-supply = <&vreg_s8b_1p2>; 571 vddrfa2p2-supply = <&vreg_s1c_2p2>; 572 vddasd-supply = <&vreg_l11c_2p8>; 573 max-speed = <3200000>; 574 }; 575}; 576 577/* PINCTRL - additions to nodes defined in sc7280.dtsi */ 578 579&dp_hot_plug_det { 580 bias-disable; 581}; 582 583&lpass_dmic01_clk { 584 drive-strength = <8>; 585 bias-disable; 586}; 587 588&lpass_dmic01_data { 589 bias-pull-down; 590}; 591 592&lpass_dmic23_clk { 593 drive-strength = <8>; 594 bias-disable; 595}; 596 597&lpass_dmic23_data { 598 bias-pull-down; 599}; 600 601&lpass_rx_swr_clk { 602 drive-strength = <2>; 603 slew-rate = <1>; 604 bias-disable; 605}; 606 607&lpass_rx_swr_data { 608 drive-strength = <2>; 609 slew-rate = <1>; 610 bias-bus-hold; 611}; 612 613&lpass_tx_swr_clk { 614 drive-strength = <2>; 615 slew-rate = <1>; 616 bias-disable; 617}; 618 619&lpass_tx_swr_data { 620 drive-strength = <2>; 621 slew-rate = <1>; 622 bias-bus-hold; 623}; 624 625&mi2s1_data0 { 626 drive-strength = <6>; 627 bias-disable; 628}; 629 630&mi2s1_sclk { 631 drive-strength = <6>; 632 bias-disable; 633}; 634 635&mi2s1_ws { 636 drive-strength = <6>; 637}; 638 639&pm7325_gpios { 640 key_vol_up_default: key-vol-up-state { 641 pins = "gpio6"; 642 function = "normal"; 643 input-enable; 644 bias-pull-up; 645 power-source = <0>; 646 qcom,drive-strength = <3>; 647 }; 648}; 649 650&pcie1_clkreq_n { 651 bias-pull-up; 652 drive-strength = <2>; 653}; 654 655&qspi_cs0 { 656 bias-disable; /* External pullup */ 657}; 658 659&qspi_clk { 660 bias-pull-down; /* No external pulls or external pulldown */ 661}; 662 663&qspi_data0 { 664 bias-pull-down; /* No external pulls or external pulldown */ 665}; 666 667&qspi_data1 { 668 bias-pull-down; /* No external pulls or external pulldown */ 669}; 670 671&qup_uart5_tx { 672 drive-strength = <2>; 673 bias-disable; 674}; 675 676&qup_uart5_rx { 677 drive-strength = <2>; 678 bias-pull-up; 679}; 680 681&qup_uart7_cts { 682 /* 683 * Configure a bias-bus-hold on CTS to lower power 684 * usage when Bluetooth is turned off. Bus hold will 685 * maintain a low power state regardless of whether 686 * the Bluetooth module drives the pin in either 687 * direction or leaves the pin fully unpowered. 688 */ 689 bias-bus-hold; 690}; 691 692&qup_uart7_rts { 693 /* We'll drive RTS, so no pull */ 694 drive-strength = <2>; 695 bias-disable; 696}; 697 698&qup_uart7_tx { 699 /* We'll drive TX, so no pull */ 700 drive-strength = <2>; 701 bias-disable; 702}; 703 704&qup_uart7_rx { 705 /* 706 * Configure a pull-up on RX. This is needed to avoid 707 * garbage data when the TX pin of the Bluetooth module is 708 * in tri-state (module powered off or not driving the 709 * signal yet). 710 */ 711 bias-pull-up; 712}; 713 714&sdc1_clk { 715 bias-disable; 716 drive-strength = <16>; 717}; 718 719&sdc1_cmd { 720 bias-pull-up; 721 drive-strength = <10>; 722}; 723 724&sdc1_data { 725 bias-pull-up; 726 drive-strength = <10>; 727}; 728 729&sdc1_rclk { 730 bias-pull-down; 731}; 732 733&sdc2_clk { 734 bias-disable; 735 drive-strength = <16>; 736}; 737 738&sdc2_cmd { 739 bias-pull-up; 740 drive-strength = <10>; 741}; 742 743&sdc2_data { 744 bias-pull-up; 745 drive-strength = <10>; 746}; 747 748&tlmm { 749 amp_en: amp-en-state { 750 pins = "gpio63"; 751 function = "gpio"; 752 bias-pull-down; 753 drive-strength = <2>; 754 }; 755 756 bt_en: bt-en-state { 757 pins = "gpio85"; 758 function = "gpio"; 759 output-low; 760 bias-disable; 761 }; 762 763 nvme_pwren: nvme-pwren-state { 764 function = "gpio"; 765 }; 766 767 pcie1_reset_n: pcie1-reset-n-state { 768 pins = "gpio2"; 769 function = "gpio"; 770 771 drive-strength = <16>; 772 output-low; 773 bias-disable; 774 }; 775 776 pcie1_wake_n: pcie1-wake-n-state { 777 pins = "gpio3"; 778 function = "gpio"; 779 780 drive-strength = <2>; 781 bias-pull-up; 782 }; 783 784 qup_uart7_sleep_cts: qup-uart7-sleep-cts-state { 785 pins = "gpio28"; 786 function = "gpio"; 787 /* 788 * Configure a bias-bus-hold on CTS to lower power 789 * usage when Bluetooth is turned off. Bus hold will 790 * maintain a low power state regardless of whether 791 * the Bluetooth module drives the pin in either 792 * direction or leaves the pin fully unpowered. 793 */ 794 bias-bus-hold; 795 }; 796 797 qup_uart7_sleep_rts: qup-uart7-sleep-rts-state { 798 pins = "gpio29"; 799 function = "gpio"; 800 /* 801 * Configure pull-down on RTS. As RTS is active low 802 * signal, pull it low to indicate the BT SoC that it 803 * can wakeup the system anytime from suspend state by 804 * pulling RX low (by sending wakeup bytes). 805 */ 806 bias-pull-down; 807 }; 808 809 qup_uart7_sleep_tx: qup-uart7-sleep-tx-state { 810 pins = "gpio30"; 811 function = "gpio"; 812 /* 813 * Configure pull-up on TX when it isn't actively driven 814 * to prevent BT SoC from receiving garbage during sleep. 815 */ 816 bias-pull-up; 817 }; 818 819 qup_uart7_sleep_rx: qup-uart7-sleep-rx-state { 820 pins = "gpio31"; 821 function = "gpio"; 822 /* 823 * Configure a pull-up on RX. This is needed to avoid 824 * garbage data when the TX pin of the Bluetooth module 825 * is floating which may cause spurious wakeups. 826 */ 827 bias-pull-up; 828 }; 829 830 sd_cd: sd-cd-state { 831 pins = "gpio91"; 832 function = "gpio"; 833 bias-pull-up; 834 }; 835 836 sw_ctrl: sw-ctrl-state { 837 pins = "gpio86"; 838 function = "gpio"; 839 bias-pull-down; 840 }; 841 842 wcd_reset_n: wcd-reset-n-state { 843 pins = "gpio83"; 844 function = "gpio"; 845 drive-strength = <8>; 846 }; 847 848 wcd_reset_n_sleep: wcd-reset-n-sleep-state { 849 pins = "gpio83"; 850 function = "gpio"; 851 drive-strength = <8>; 852 bias-disable; 853 }; 854}; 855