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 pinctrl-0 = <&lpass_dmic01_clk>, <&lpass_dmic01_data>; 416 pinctrl-names = "default"; 417}; 418 419&pcie1 { 420 status = "okay"; 421 perst-gpios = <&tlmm 2 GPIO_ACTIVE_LOW>; 422 423 vddpe-3v3-supply = <&nvme_3v3_regulator>; 424 425 pinctrl-names = "default"; 426 pinctrl-0 = <&pcie1_reset_n>, <&pcie1_wake_n>; 427}; 428 429&pcie1_phy { 430 status = "okay"; 431 432 vdda-phy-supply = <&vreg_l10c_0p8>; 433 vdda-pll-supply = <&vreg_l6b_1p2>; 434}; 435 436&pmk8350_vadc { 437 channel@3 { 438 reg = <PMK8350_ADC7_DIE_TEMP>; 439 label = "pmk8350_die_temp"; 440 qcom,pre-scaling = <1 1>; 441 }; 442}; 443 444&qfprom { 445 vcc-supply = <&vreg_l1c_1p8>; 446}; 447 448&qupv3_id_0 { 449 status = "okay"; 450}; 451 452&qupv3_id_1 { 453 status = "okay"; 454}; 455 456&sdhc_1 { 457 status = "okay"; 458 459 non-removable; 460 no-sd; 461 no-sdio; 462 463 vmmc-supply = <&vreg_l7b_2p9>; 464 vqmmc-supply = <&vreg_l19b_1p8>; 465}; 466 467&sdhc_2 { 468 status = "okay"; 469 470 pinctrl-0 = <&sdc2_clk>, <&sdc2_cmd>, <&sdc2_data>, <&sd_cd>; 471 pinctrl-1 = <&sdc2_clk_sleep>, <&sdc2_cmd_sleep>, <&sdc2_data_sleep>, <&sd_cd>; 472 473 vmmc-supply = <&vreg_l9c_2p9>; 474 vqmmc-supply = <&vreg_l6c_2p9>; 475 476 cd-gpios = <&tlmm 91 GPIO_ACTIVE_LOW>; 477}; 478 479&swr0 { 480 status = "okay"; 481 482 wcd_rx: codec@0,4 { 483 compatible = "sdw20217010d00"; 484 reg = <0 4>; 485 qcom,rx-port-mapping = <1 2 3 4 5>; 486 }; 487}; 488 489&swr1 { 490 status = "okay"; 491 492 wcd_tx: codec@0,3 { 493 compatible = "sdw20217010d00"; 494 reg = <0 3>; 495 qcom,tx-port-mapping = <1 2 3 4>; 496 }; 497}; 498 499&uart5 { 500 status = "okay"; 501}; 502 503&ufs_mem_hc { 504 reset-gpios = <&tlmm 175 GPIO_ACTIVE_LOW>; 505 vcc-supply = <&vreg_l7b_2p9>; 506 vcc-max-microamp = <800000>; 507 vccq-supply = <&vreg_l9b_1p2>; 508 vccq-max-microamp = <900000>; 509 vccq2-supply = <&vreg_l9b_1p2>; 510 vccq2-max-microamp = <900000>; 511 512 status = "okay"; 513}; 514 515&ufs_mem_phy { 516 vdda-phy-supply = <&vreg_l10c_0p8>; 517 vdda-pll-supply = <&vreg_l6b_1p2>; 518 519 status = "okay"; 520}; 521 522&usb_1 { 523 status = "okay"; 524}; 525 526&usb_1_dwc3 { 527 dr_mode = "host"; 528}; 529 530&usb_1_hsphy { 531 status = "okay"; 532 533 vdda-pll-supply = <&vreg_l10c_0p8>; 534 vdda33-supply = <&vreg_l2b_3p0>; 535 vdda18-supply = <&vreg_l1c_1p8>; 536 qcom,hs-rise-fall-time-bp = <0>; 537 qcom,squelch-detector-bp = <(-2090)>; 538 qcom,hs-disconnect-bp = <1743>; 539 qcom,hs-amplitude-bp = <1780>; 540 qcom,hs-crossover-voltage-microvolt = <(-31000)>; 541 qcom,hs-output-impedance-micro-ohms = <2600000>; 542}; 543 544&usb_1_qmpphy { 545 status = "okay"; 546 547 vdda-phy-supply = <&vreg_l6b_1p2>; 548 vdda-pll-supply = <&vreg_l1b_0p8>; 549}; 550 551&uart7 { 552 status = "okay"; 553 554 /delete-property/interrupts; 555 interrupts-extended = <&intc GIC_SPI 608 IRQ_TYPE_LEVEL_HIGH>, 556 <&tlmm 31 IRQ_TYPE_EDGE_FALLING>; 557 pinctrl-names = "default", "sleep"; 558 pinctrl-1 = <&qup_uart7_sleep_cts>, <&qup_uart7_sleep_rts>, <&qup_uart7_sleep_tx>, <&qup_uart7_sleep_rx>; 559 560 bluetooth: bluetooth { 561 compatible = "qcom,wcn6750-bt"; 562 pinctrl-names = "default"; 563 pinctrl-0 = <&bt_en>, <&sw_ctrl>; 564 enable-gpios = <&tlmm 85 GPIO_ACTIVE_HIGH>; 565 swctrl-gpios = <&tlmm 86 GPIO_ACTIVE_HIGH>; 566 vddaon-supply = <&vreg_s7b_0p9>; 567 vddbtcxmx-supply = <&vreg_s7b_0p9>; 568 vddrfacmn-supply = <&vreg_s7b_0p9>; 569 vddrfa0p8-supply = <&vreg_s7b_0p9>; 570 vddrfa1p7-supply = <&vreg_s1b_1p8>; 571 vddrfa1p2-supply = <&vreg_s8b_1p2>; 572 vddrfa2p2-supply = <&vreg_s1c_2p2>; 573 vddasd-supply = <&vreg_l11c_2p8>; 574 max-speed = <3200000>; 575 }; 576}; 577 578/* PINCTRL - additions to nodes defined in sc7280.dtsi */ 579 580&dp_hot_plug_det { 581 bias-disable; 582}; 583 584&lpass_dmic01_clk { 585 drive-strength = <8>; 586 bias-disable; 587}; 588 589&lpass_dmic01_data { 590 bias-pull-down; 591}; 592 593&lpass_dmic23_clk { 594 drive-strength = <8>; 595 bias-disable; 596}; 597 598&lpass_dmic23_data { 599 bias-pull-down; 600}; 601 602&lpass_rx_swr_clk { 603 drive-strength = <2>; 604 slew-rate = <1>; 605 bias-disable; 606}; 607 608&lpass_rx_swr_data { 609 drive-strength = <2>; 610 slew-rate = <1>; 611 bias-bus-hold; 612}; 613 614&lpass_tx_swr_clk { 615 drive-strength = <2>; 616 slew-rate = <1>; 617 bias-disable; 618}; 619 620&lpass_tx_swr_data { 621 drive-strength = <2>; 622 slew-rate = <1>; 623 bias-bus-hold; 624}; 625 626&mi2s1_data0 { 627 drive-strength = <6>; 628 bias-disable; 629}; 630 631&mi2s1_sclk { 632 drive-strength = <6>; 633 bias-disable; 634}; 635 636&mi2s1_ws { 637 drive-strength = <6>; 638}; 639 640&pm7325_gpios { 641 key_vol_up_default: key-vol-up-state { 642 pins = "gpio6"; 643 function = "normal"; 644 input-enable; 645 bias-pull-up; 646 power-source = <0>; 647 qcom,drive-strength = <3>; 648 }; 649}; 650 651&pcie1_clkreq_n { 652 bias-pull-up; 653 drive-strength = <2>; 654}; 655 656&qspi_cs0 { 657 bias-disable; /* External pullup */ 658}; 659 660&qspi_clk { 661 bias-pull-down; /* No external pulls or external pulldown */ 662}; 663 664&qspi_data0 { 665 bias-pull-down; /* No external pulls or external pulldown */ 666}; 667 668&qspi_data1 { 669 bias-pull-down; /* No external pulls or external pulldown */ 670}; 671 672&qup_uart5_tx { 673 drive-strength = <2>; 674 bias-disable; 675}; 676 677&qup_uart5_rx { 678 drive-strength = <2>; 679 bias-pull-up; 680}; 681 682&qup_uart7_cts { 683 /* 684 * Configure a bias-bus-hold on CTS to lower power 685 * usage when Bluetooth is turned off. Bus hold will 686 * maintain a low power state regardless of whether 687 * the Bluetooth module drives the pin in either 688 * direction or leaves the pin fully unpowered. 689 */ 690 bias-bus-hold; 691}; 692 693&qup_uart7_rts { 694 /* We'll drive RTS, so no pull */ 695 drive-strength = <2>; 696 bias-disable; 697}; 698 699&qup_uart7_tx { 700 /* We'll drive TX, so no pull */ 701 drive-strength = <2>; 702 bias-disable; 703}; 704 705&qup_uart7_rx { 706 /* 707 * Configure a pull-up on RX. This is needed to avoid 708 * garbage data when the TX pin of the Bluetooth module is 709 * in tri-state (module powered off or not driving the 710 * signal yet). 711 */ 712 bias-pull-up; 713}; 714 715&sdc1_clk { 716 bias-disable; 717 drive-strength = <16>; 718}; 719 720&sdc1_cmd { 721 bias-pull-up; 722 drive-strength = <10>; 723}; 724 725&sdc1_data { 726 bias-pull-up; 727 drive-strength = <10>; 728}; 729 730&sdc1_rclk { 731 bias-pull-down; 732}; 733 734&sdc2_clk { 735 bias-disable; 736 drive-strength = <16>; 737}; 738 739&sdc2_cmd { 740 bias-pull-up; 741 drive-strength = <10>; 742}; 743 744&sdc2_data { 745 bias-pull-up; 746 drive-strength = <10>; 747}; 748 749&tlmm { 750 amp_en: amp-en-state { 751 pins = "gpio63"; 752 function = "gpio"; 753 bias-pull-down; 754 drive-strength = <2>; 755 }; 756 757 bt_en: bt-en-state { 758 pins = "gpio85"; 759 function = "gpio"; 760 output-low; 761 bias-disable; 762 }; 763 764 nvme_pwren: nvme-pwren-state { 765 function = "gpio"; 766 }; 767 768 pcie1_reset_n: pcie1-reset-n-state { 769 pins = "gpio2"; 770 function = "gpio"; 771 772 drive-strength = <16>; 773 output-low; 774 bias-disable; 775 }; 776 777 pcie1_wake_n: pcie1-wake-n-state { 778 pins = "gpio3"; 779 function = "gpio"; 780 781 drive-strength = <2>; 782 bias-pull-up; 783 }; 784 785 qup_uart7_sleep_cts: qup-uart7-sleep-cts-state { 786 pins = "gpio28"; 787 function = "gpio"; 788 /* 789 * Configure a bias-bus-hold on CTS to lower power 790 * usage when Bluetooth is turned off. Bus hold will 791 * maintain a low power state regardless of whether 792 * the Bluetooth module drives the pin in either 793 * direction or leaves the pin fully unpowered. 794 */ 795 bias-bus-hold; 796 }; 797 798 qup_uart7_sleep_rts: qup-uart7-sleep-rts-state { 799 pins = "gpio29"; 800 function = "gpio"; 801 /* 802 * Configure pull-down on RTS. As RTS is active low 803 * signal, pull it low to indicate the BT SoC that it 804 * can wakeup the system anytime from suspend state by 805 * pulling RX low (by sending wakeup bytes). 806 */ 807 bias-pull-down; 808 }; 809 810 qup_uart7_sleep_tx: qup-uart7-sleep-tx-state { 811 pins = "gpio30"; 812 function = "gpio"; 813 /* 814 * Configure pull-up on TX when it isn't actively driven 815 * to prevent BT SoC from receiving garbage during sleep. 816 */ 817 bias-pull-up; 818 }; 819 820 qup_uart7_sleep_rx: qup-uart7-sleep-rx-state { 821 pins = "gpio31"; 822 function = "gpio"; 823 /* 824 * Configure a pull-up on RX. This is needed to avoid 825 * garbage data when the TX pin of the Bluetooth module 826 * is floating which may cause spurious wakeups. 827 */ 828 bias-pull-up; 829 }; 830 831 sd_cd: sd-cd-state { 832 pins = "gpio91"; 833 function = "gpio"; 834 bias-pull-up; 835 }; 836 837 sw_ctrl: sw-ctrl-state { 838 pins = "gpio86"; 839 function = "gpio"; 840 bias-pull-down; 841 }; 842 843 wcd_reset_n: wcd-reset-n-state { 844 pins = "gpio83"; 845 function = "gpio"; 846 drive-strength = <8>; 847 }; 848 849 wcd_reset_n_sleep: wcd-reset-n-sleep-state { 850 pins = "gpio83"; 851 function = "gpio"; 852 drive-strength = <8>; 853 bias-disable; 854 }; 855}; 856