The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/src/arm64/qcom/sc7280-qcard.dtsi

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
SearchContext: -  none  -  3  -  10 

    1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
    2 /*
    3  * sc7280 Qcard device tree source
    4  *
    5  * Qcard PCB has the processor, RAM, eMMC (if stuffed), and eDP connector (if
    6  * stuffed) on it. This device tree tries to encapsulate all the things that
    7  * all boards using Qcard will have in common. Given that there are stuffing
    8  * options, some things may be left with status "disabled" and enabled in
    9  * the actual board device tree files.
   10  *
   11  * Copyright 2022 Google LLC.
   12  */
   13 
   14 #include <dt-bindings/iio/qcom,spmi-adc7-pmk8350.h>
   15 #include <dt-bindings/iio/qcom,spmi-adc7-pmr735a.h>
   16 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
   17 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
   18 
   19 #include "sc7280.dtsi"
   20 
   21 /* PMICs depend on spmi_bus label and so must come after SoC */
   22 #include "pm7325.dtsi"
   23 #include "pm8350c.dtsi"
   24 #include "pmk8350.dtsi"
   25 
   26 / {
   27         aliases {
   28                 bluetooth0 = &bluetooth;
   29                 serial0 = &uart5;
   30                 serial1 = &uart7;
   31         };
   32 
   33         pm8350c_pwm_backlight: backlight {
   34                 compatible = "pwm-backlight";
   35                 status = "disabled";
   36 
   37                 enable-gpios = <&pm8350c_gpios 7 GPIO_ACTIVE_HIGH>;
   38                 pinctrl-names = "default";
   39                 pinctrl-0 = <&pmic_edp_bl_en>;
   40                 pwms = <&pm8350c_pwm 3 65535>;
   41         };
   42 };
   43 
   44 &apps_rsc {
   45         /*
   46          * Regulators are given labels corresponding to the various names
   47          * they are referred to on schematics. They are also given labels
   48          * corresponding to named voltage inputs on the SoC or components
   49          * bundled with the SoC (like radio companion chips). We totally
   50          * ignore it when one regulator is the input to another regulator.
   51          * That's handled automatically by the initial config given to
   52          * RPMH by the firmware.
   53          *
   54          * Regulators that the HLOS (High Level OS) doesn't touch at all
   55          * are left out of here since they are managed elsewhere.
   56          */
   57 
   58         pm7325-regulators {
   59                 compatible = "qcom,pm7325-rpmh-regulators";
   60                 qcom,pmic-id = "b";
   61 
   62                 vdd19_pmu_pcie_i:
   63                 vdd19_pmu_rfa_i:
   64                 vreg_s1b_1p856: smps1 {
   65                         regulator-min-microvolt = <1856000>;
   66                         regulator-max-microvolt = <2040000>;
   67                 };
   68 
   69                 vdd_pmu_aon_i:
   70                 vdd09_pmu_rfa_i:
   71                 vdd095_mx_pmu:
   72                 vdd095_pmu:
   73                 vreg_s7b_0p952: smps7 {
   74                         regulator-min-microvolt = <535000>;
   75                         regulator-max-microvolt = <1120000>;
   76                 };
   77 
   78                 vdd13_pmu_rfa_i:
   79                 vdd13_pmu_pcie_i:
   80                 vreg_s8b_1p256: smps8 {
   81                         regulator-min-microvolt = <1256000>;
   82                         regulator-max-microvolt = <1500000>;
   83                 };
   84 
   85                 vdd_a_usbssdp_0_core:
   86                 vreg_l1b_0p912: ldo1 {
   87                         regulator-min-microvolt = <825000>;
   88                         regulator-max-microvolt = <925000>;
   89                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
   90                 };
   91 
   92                 vdd_a_usbhs_3p1:
   93                 vreg_l2b_3p072: ldo2 {
   94                         regulator-min-microvolt = <2700000>;
   95                         regulator-max-microvolt = <3544000>;
   96                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
   97                 };
   98 
   99                 vdd_a_csi_0_1_1p2:
  100                 vdd_a_csi_2_3_1p2:
  101                 vdd_a_csi_4_1p2:
  102                 vdd_a_dsi_0_1p2:
  103                 vdd_a_edp_0_1p2:
  104                 vdd_a_qlink_0_1p2:
  105                 vdd_a_qlink_1_1p2:
  106                 vdd_a_pcie_0_1p2:
  107                 vdd_a_pcie_1_1p2:
  108                 vdd_a_ufs_0_1p2:
  109                 vdd_a_usbssdp_0_1p2:
  110                 vreg_l6b_1p2: ldo6 {
  111                         regulator-min-microvolt = <1140000>;
  112                         regulator-max-microvolt = <1260000>;
  113                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  114                 };
  115 
  116                 /*
  117                  * Despite the fact that this is named to be 2.5V on the
  118                  * schematic, it powers eMMC which doesn't accept 2.5V
  119                  */
  120                 vreg_l7b_2p5: ldo7 {
  121                         regulator-min-microvolt = <2960000>;
  122                         regulator-max-microvolt = <2960000>;
  123                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  124                 };
  125 
  126                 vreg_l17b_1p8: ldo17 {
  127                         regulator-min-microvolt = <1700000>;
  128                         regulator-max-microvolt = <1900000>;
  129                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  130                 };
  131 
  132                 vdd_px_wcd9385:
  133                 vdd_txrx:
  134                 vddpx_0:
  135                 vddpx_3:
  136                 vddpx_7:
  137                 vreg_l18b_1p8: ldo18 {
  138                         regulator-min-microvolt = <1800000>;
  139                         regulator-max-microvolt = <2000000>;
  140                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  141                 };
  142 
  143                 vdd_1p8:
  144                 vdd_px_sdr735:
  145                 vdd_pxm:
  146                 vdd18_io:
  147                 vddio_px_1:
  148                 vddio_px_2:
  149                 vddio_px_3:
  150                 vddpx_ts:
  151                 vddpx_wl4otp:
  152                 vreg_l19b_1p8: ldo19 {
  153                         regulator-min-microvolt = <1800000>;
  154                         regulator-max-microvolt = <1800000>;
  155                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  156                 };
  157         };
  158 
  159         pm8350c-regulators {
  160                 compatible = "qcom,pm8350c-rpmh-regulators";
  161                 qcom,pmic-id = "c";
  162 
  163                 vdd22_wlbtpa_ch0:
  164                 vdd22_wlbtpa_ch1:
  165                 vdd22_wlbtppa_ch0:
  166                 vdd22_wlbtppa_ch1:
  167                 vdd22_wlpa5g_ch0:
  168                 vdd22_wlpa5g_ch1:
  169                 vdd22_wlppa5g_ch0:
  170                 vdd22_wlppa5g_ch1:
  171                 vreg_s1c_2p2: smps1 {
  172                         regulator-min-microvolt = <2190000>;
  173                         regulator-max-microvolt = <2210000>;
  174                 };
  175 
  176                 lp4_vdd2_1p052:
  177                 vreg_s9c_0p676: smps9 {
  178                         regulator-min-microvolt = <1010000>;
  179                         regulator-max-microvolt = <1170000>;
  180                 };
  181 
  182                 vdda_apc_cs_1p8:
  183                 vdda_gfx_cs_1p8:
  184                 vdda_turing_q6_cs_1p8:
  185                 vdd_a_cxo_1p8:
  186                 vdd_a_qrefs_1p8:
  187                 vdd_a_usbhs_1p8:
  188                 vdd_qfprom:
  189                 vreg_l1c_1p8: ldo1 {
  190                         regulator-min-microvolt = <1800000>;
  191                         regulator-max-microvolt = <1980000>;
  192                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  193                 };
  194 
  195                 vreg_l2c_1p8: ldo2 {
  196                         regulator-min-microvolt = <1620000>;
  197                         regulator-max-microvolt = <1980000>;
  198                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  199                 };
  200 
  201                 vreg_l3c_3p0: ldo3 {
  202                         regulator-min-microvolt = <2800000>;
  203                         regulator-max-microvolt = <3540000>;
  204                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  205                 };
  206 
  207                 vddpx_5:
  208                 vreg_l4c_1p8_3p0: ldo4 {
  209                         regulator-min-microvolt = <1620000>;
  210                         regulator-max-microvolt = <3300000>;
  211                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  212                 };
  213 
  214                 vddpx_6:
  215                 vreg_l5c_1p8_3p0: ldo5 {
  216                         regulator-min-microvolt = <1620000>;
  217                         regulator-max-microvolt = <3300000>;
  218                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  219                 };
  220 
  221                 vddpx_2:
  222                 vreg_l6c_2p96: ldo6 {
  223                         regulator-min-microvolt = <1800000>;
  224                         regulator-max-microvolt = <2950000>;
  225                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  226                 };
  227 
  228                 vreg_l7c_3p0: ldo7 {
  229                         regulator-min-microvolt = <3000000>;
  230                         regulator-max-microvolt = <3544000>;
  231                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  232                 };
  233 
  234                 vreg_l8c_1p8: ldo8 {
  235                         regulator-min-microvolt = <1620000>;
  236                         regulator-max-microvolt = <2000000>;
  237                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  238                 };
  239 
  240                 vreg_l9c_2p96: ldo9 {
  241                         regulator-min-microvolt = <2960000>;
  242                         regulator-max-microvolt = <2960000>;
  243                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  244                 };
  245 
  246                 vdd_a_csi_0_1_0p9:
  247                 vdd_a_csi_2_3_0p9:
  248                 vdd_a_csi_4_0p9:
  249                 vdd_a_dsi_0_0p9:
  250                 vdd_a_dsi_0_pll_0p9:
  251                 vdd_a_edp_0_0p9:
  252                 vdd_a_gnss_0p9:
  253                 vdd_a_pcie_0_core:
  254                 vdd_a_pcie_1_core:
  255                 vdd_a_qlink_0_0p9:
  256                 vdd_a_qlink_0_0p9_ck:
  257                 vdd_a_qlink_1_0p9:
  258                 vdd_a_qlink_1_0p9_ck:
  259                 vdd_a_qrefs_0p875_0:
  260                 vdd_a_qrefs_0p875_1:
  261                 vdd_a_qrefs_0p875_2:
  262                 vdd_a_qrefs_0p875_3:
  263                 vdd_a_qrefs_0p875_4_5:
  264                 vdd_a_qrefs_0p875_6:
  265                 vdd_a_qrefs_0p875_7:
  266                 vdd_a_qrefs_0p875_8:
  267                 vdd_a_qrefs_0p875_9:
  268                 vdd_a_ufs_0_core:
  269                 vdd_a_usbhs_core:
  270                 vreg_l10c_0p88: ldo10 {
  271                         regulator-min-microvolt = <720000>;
  272                         regulator-max-microvolt = <1050000>;
  273                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  274                 };
  275 
  276                 vreg_l11c_2p8: ldo11 {
  277                         regulator-min-microvolt = <2800000>;
  278                         regulator-max-microvolt = <3544000>;
  279                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  280                 };
  281 
  282                 vreg_l12c_1p8: ldo12 {
  283                         regulator-min-microvolt = <1650000>;
  284                         regulator-max-microvolt = <2000000>;
  285                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  286                 };
  287 
  288                 vreg_l13c_3p0: ldo13 {
  289                         regulator-min-microvolt = <2700000>;
  290                         regulator-max-microvolt = <3544000>;
  291                         regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
  292                 };
  293 
  294                 vdd_flash:
  295                 vdd_iris_rgb:
  296                 vdd_mic_bias:
  297                 vreg_bob: bob {
  298                         regulator-min-microvolt = <3008000>;
  299                         regulator-max-microvolt = <3960000>;
  300                         regulator-initial-mode = <RPMH_REGULATOR_MODE_AUTO>;
  301                 };
  302         };
  303 };
  304 
  305 /* ADDITIONS TO NODES DEFINED IN PARENT DEVICE TREE FILES */
  306 
  307 &ipa {
  308         status = "okay";
  309         modem-init;
  310 };
  311 
  312 /* NOTE: Not all Qcards have eDP connector stuffed */
  313 &mdss_edp {
  314         aux-bus {
  315                 edp_panel: panel {
  316                         compatible = "edp-panel";
  317 
  318                         backlight = <&pm8350c_pwm_backlight>;
  319 
  320                         ports {
  321                                 #address-cells = <1>;
  322                                 #size-cells = <0>;
  323                                 port@0 {
  324                                         reg = <0>;
  325                                         edp_panel_in: endpoint {
  326                                                 remote-endpoint = <&mdss_edp_out>;
  327                                         };
  328                                 };
  329                         };
  330                 };
  331         };
  332 };
  333 
  334 &mdss_edp_out {
  335         remote-endpoint = <&edp_panel_in>;
  336 };
  337 
  338 &mdss_edp_phy {
  339         vdda-pll-supply = <&vdd_a_edp_0_0p9>;
  340         vdda-phy-supply = <&vdd_a_edp_0_1p2>;
  341 };
  342 
  343 &pcie1_phy {
  344         vdda-phy-supply = <&vreg_l10c_0p88>;
  345         vdda-pll-supply = <&vreg_l6b_1p2>;
  346 };
  347 
  348 &pm8350c_pwm {
  349         pinctrl-names = "default";
  350         pinctrl-0 = <&pmic_edp_bl_pwm>;
  351 };
  352 
  353 &pmk8350_vadc {
  354         pmk8350-die-temp@3 {
  355                 reg = <PMK8350_ADC7_DIE_TEMP>;
  356                 label = "pmk8350_die_temp";
  357                 qcom,pre-scaling = <1 1>;
  358         };
  359 
  360         pmr735a-die-temp@403 {
  361                 reg = <PMR735A_ADC7_DIE_TEMP>;
  362                 label = "pmr735a_die_temp";
  363                 qcom,pre-scaling = <1 1>;
  364         };
  365 };
  366 
  367 &qfprom {
  368         vcc-supply = <&vdd_qfprom>;
  369 };
  370 
  371 /* For eMMC. NOTE: not all Qcards have eMMC stuffed */
  372 &sdhc_1 {
  373         vmmc-supply = <&vreg_l7b_2p5>;
  374         vqmmc-supply = <&vreg_l19b_1p8>;
  375 
  376         non-removable;
  377         no-sd;
  378         no-sdio;
  379 };
  380 
  381 uart_dbg: &uart5 {
  382         compatible = "qcom,geni-debug-uart";
  383         status = "okay";
  384 };
  385 
  386 mos_bt_uart: &uart7 {
  387         status = "okay";
  388 
  389         /delete-property/ interrupts;
  390         interrupts-extended = <&intc GIC_SPI 608 IRQ_TYPE_LEVEL_HIGH>,
  391                                 <&tlmm 31 IRQ_TYPE_EDGE_FALLING>;
  392         pinctrl-names = "default", "sleep";
  393         pinctrl-1 = <&qup_uart7_sleep_cts>, <&qup_uart7_sleep_rts>, <&qup_uart7_sleep_tx>, <&qup_uart7_sleep_rx>;
  394 
  395         bluetooth: bluetooth {
  396                 compatible = "qcom,wcn6750-bt";
  397                 pinctrl-names = "default";
  398                 pinctrl-0 = <&mos_bt_en>;
  399                 enable-gpios = <&tlmm 85 GPIO_ACTIVE_HIGH>;
  400                 swctrl-gpios = <&tlmm 86 GPIO_ACTIVE_HIGH>;
  401                 vddaon-supply = <&vreg_s7b_0p952>;
  402                 vddbtcxmx-supply = <&vreg_s7b_0p952>;
  403                 vddrfacmn-supply = <&vreg_s7b_0p952>;
  404                 vddrfa0p8-supply = <&vreg_s7b_0p952>;
  405                 vddrfa1p7-supply = <&vdd19_pmu_rfa_i>;
  406                 vddrfa1p2-supply = <&vdd13_pmu_rfa_i>;
  407                 vddrfa2p2-supply = <&vreg_s1c_2p2>;
  408                 vddasd-supply = <&vreg_l11c_2p8>;
  409                 vddio-supply = <&vreg_l18b_1p8>;
  410                 max-speed = <3200000>;
  411         };
  412 };
  413 
  414 &usb_1_hsphy {
  415         vdda-pll-supply = <&vdd_a_usbhs_core>;
  416         vdda33-supply = <&vdd_a_usbhs_3p1>;
  417         vdda18-supply = <&vdd_a_usbhs_1p8>;
  418 };
  419 
  420 &usb_1_qmpphy {
  421         vdda-phy-supply = <&vdd_a_usbssdp_0_1p2>;
  422         vdda-pll-supply = <&vdd_a_usbssdp_0_core>;
  423 };
  424 
  425 &usb_2_hsphy {
  426         vdda-pll-supply = <&vdd_a_usbhs_core>;
  427         vdda33-supply = <&vdd_a_usbhs_3p1>;
  428         vdda18-supply = <&vdd_a_usbhs_1p8>;
  429 };
  430 
  431 /*
  432  * PINCTRL - ADDITIONS TO NODES IN PARENT DEVICE TREE FILES
  433  *
  434  * NOTE: In general if pins leave the Qcard then the pinctrl goes in the
  435  * baseboard or board device tree, not here.
  436  */
  437 
  438 /* No external pull for eDP HPD, so set the internal one. */
  439 &edp_hot_plug_det {
  440         bias-pull-down;
  441 };
  442 
  443 /*
  444  * For ts_i2c
  445  *
  446  * Technically this i2c bus actually leaves the Qcard, but it leaves directly
  447  * via the eDP connector (it doesn't hit the baseboard). The external pulls
  448  * are on Qcard.
  449  */
  450 &qup_i2c13_data_clk {
  451         /* Has external pull */
  452         bias-disable;
  453         drive-strength = <2>;
  454 };
  455 
  456 /* For mos_bt_uart */
  457 &qup_uart7_cts {
  458         /*
  459          * Configure a bias-bus-hold on CTS to lower power
  460          * usage when Bluetooth is turned off. Bus hold will
  461          * maintain a low power state regardless of whether
  462          * the Bluetooth module drives the pin in either
  463          * direction or leaves the pin fully unpowered.
  464          */
  465         bias-bus-hold;
  466 };
  467 
  468 /* For mos_bt_uart */
  469 &qup_uart7_rts {
  470         /* We'll drive RTS, so no pull */
  471         bias-disable;
  472         drive-strength = <2>;
  473 };
  474 
  475 /* For mos_bt_uart */
  476 &qup_uart7_tx {
  477         /* We'll drive TX, so no pull */
  478         bias-disable;
  479         drive-strength = <2>;
  480 };
  481 
  482 /* For mos_bt_uart */
  483 &qup_uart7_rx {
  484         /*
  485          * Configure a pull-up on RX. This is needed to avoid
  486          * garbage data when the TX pin of the Bluetooth module is
  487          * in tri-state (module powered off or not driving the
  488          * signal yet).
  489          */
  490         bias-pull-up;
  491 };
  492 
  493 /* eMMC, if stuffed, is straight on the Qcard */
  494 &sdc1_clk {
  495         bias-disable;
  496         drive-strength = <16>;
  497 };
  498 
  499 &sdc1_cmd {
  500         bias-pull-up;
  501         drive-strength = <10>;
  502 };
  503 
  504 &sdc1_data {
  505         bias-pull-up;
  506         drive-strength = <10>;
  507 };
  508 
  509 &sdc1_rclk {
  510         bias-pull-down;
  511 };
  512 
  513 /*
  514  * PINCTRL - QCARD
  515  *
  516  * This has entries that are defined by Qcard even if they go to the main
  517  * board. In cases where the pulls may be board dependent we defer those
  518  * settings to the board device tree. Drive strengths tend to be assinged here
  519  * but could conceivably be overwridden by board device trees.
  520  */
  521 
  522 &pm8350c_gpios {
  523         pmic_edp_bl_en: pmic-edp-bl-en-state {
  524                 pins = "gpio7";
  525                 function = "normal";
  526                 bias-disable;
  527                 qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>;
  528 
  529                 /* Force backlight to be disabled to match state at boot. */
  530                 output-low;
  531         };
  532 
  533         pmic_edp_bl_pwm: pmic-edp-bl-pwm-state {
  534                 pins = "gpio8";
  535                 function = "func1";
  536                 bias-disable;
  537                 qcom,drive-strength = <PMIC_GPIO_STRENGTH_LOW>;
  538                 output-low;
  539                 power-source = <0>;
  540         };
  541 };
  542 
  543 &tlmm {
  544         mos_bt_en: mos-bt-en {
  545                 pins = "gpio85";
  546                 function = "gpio";
  547                 drive-strength = <2>;
  548                 output-low;
  549         };
  550 
  551         /* For mos_bt_uart */
  552         qup_uart7_sleep_cts: qup-uart7-sleep-cts {
  553                 pins = "gpio28";
  554                 function = "gpio";
  555                 /*
  556                  * Configure a bias-bus-hold on CTS to lower power
  557                  * usage when Bluetooth is turned off. Bus hold will
  558                  * maintain a low power state regardless of whether
  559                  * the Bluetooth module drives the pin in either
  560                  * direction or leaves the pin fully unpowered.
  561                  */
  562                 bias-bus-hold;
  563         };
  564 
  565         /* For mos_bt_uart */
  566         qup_uart7_sleep_rts: qup-uart7-sleep-rts {
  567                 pins = "gpio29";
  568                 function = "gpio";
  569                 /*
  570                  * Configure pull-down on RTS. As RTS is active low
  571                  * signal, pull it low to indicate the BT SoC that it
  572                  * can wakeup the system anytime from suspend state by
  573                  * pulling RX low (by sending wakeup bytes).
  574                  */
  575                 bias-pull-down;
  576         };
  577 
  578         /* For mos_bt_uart */
  579         qup_uart7_sleep_rx: qup-uart7-sleep-rx {
  580                 pins = "gpio31";
  581                 function = "gpio";
  582                 /*
  583                  * Configure a pull-up on RX. This is needed to avoid
  584                  * garbage data when the TX pin of the Bluetooth module
  585                  * is floating which may cause spurious wakeups.
  586                  */
  587                 bias-pull-up;
  588         };
  589 
  590         /* For mos_bt_uart */
  591         qup_uart7_sleep_tx: qup-uart7-sleep-tx {
  592                 pins = "gpio30";
  593                 function = "gpio";
  594                 /*
  595                  * Configure pull-up on TX when it isn't actively driven
  596                  * to prevent BT SoC from receiving garbage during sleep.
  597                  */
  598                 bias-pull-up;
  599         };
  600 
  601         ts_int_conn: ts-int-conn {
  602                 pins = "gpio55";
  603                 function = "gpio";
  604                 bias-pull-up;
  605         };
  606 
  607         ts_rst_conn: ts-rst-conn {
  608                 pins = "gpio54";
  609                 function = "gpio";
  610                 drive-strength = <2>;
  611         };
  612 };

Cache object: e230265d51f5086ae362e629b3393b21


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.