  "   8     (            N                                                        )   TechNexion PICO-IMX7 and NYMPH baseboard          &   !technexion,imx7d-pico-nymph fsl,imx7d      chosen        aliases           ,/soc/bus@30000000/gpio@30200000           2/soc/bus@30000000/gpio@30210000           8/soc/bus@30000000/gpio@30220000           >/soc/bus@30000000/gpio@30230000           D/soc/bus@30000000/gpio@30240000           J/soc/bus@30000000/gpio@30250000           P/soc/bus@30000000/gpio@30260000          V/soc/bus@30800000/i2c@30a20000           [/soc/bus@30800000/i2c@30a30000           `/soc/bus@30800000/i2c@30a40000           e/soc/bus@30800000/i2c@30a50000           j/soc/bus@30800000/mmc@30b40000           o/soc/bus@30800000/mmc@30b50000           t/soc/bus@30800000/mmc@30b60000        4   y/soc/bus@30800000/spba-bus@30800000/serial@30860000       4   /soc/bus@30800000/spba-bus@30800000/serial@30890000       4   /soc/bus@30800000/spba-bus@30800000/serial@30880000       "   /soc/bus@30800000/serial@30a60000         "   /soc/bus@30800000/serial@30a70000         "   /soc/bus@30800000/serial@30a80000         "   /soc/bus@30800000/serial@30a90000         1   /soc/bus@30800000/spba-bus@30800000/spi@30820000          1   /soc/bus@30800000/spba-bus@30800000/spi@30830000          1   /soc/bus@30800000/spba-bus@30800000/spi@30840000             /soc/bus@30400000/spi@30630000           /soc/bus@30800000/usb@30b10000           /soc/bus@30800000/usb@30b20000           /soc/bus@30800000/usb@30b30000        cpus                                 idle-states          psci       cpu-sleep-wait           !arm,idle-state                                	   d           2        *          ;            cpu@0            !arm,cortex-a7           Ccpu         O            S;]         c  l        q             x                                            speed_grade         ;         cpu@1            !arm,cortex-a7           Ccpu         O           S;]                               x           ;   T         opp-table            !operating-points-v2                  ;      opp-792000000               /4          B@         I                       
      opp-996000000               ;]                   I                       
      opp-1200000000              G          (         I                       
         clock-cki            !fixed-clock                     S           #ckil            ;         clock-osc            !fixed-clock                     Sn6         #osc         ;          usbphynop1           !usb-nop-xceiv           q           	  6main_clk            B            ;   =      usbphynop3           !usb-nop-xceiv           q      n      	  6main_clk            M           B            ;   @      pmu          !arm,cortex-a7-pmu           [           l       \           w         replicator            !arm,coresight-static-replicator    out-ports                                port@0          O       endpoint                       ;            port@1          O      endpoint               	        ;               in-ports       port       endpoint               
        ;                  timer            !arm,armv7-timer                  [         0  l                              
        soc                                   !simple-bus          [               funnel@30041000       +   !arm,coresight-dynamic-funnel arm,primecell          O0            q      J      	  6apb_pclk       in-ports                                 port       endpoint                       ;            port@1          O      endpoint                       ;   U            out-ports      port       endpoint                       ;                  etm@3007c000          "   !arm,coresight-etm3x arm,primecell           O0                       q      J      	  6apb_pclk       out-ports      port       endpoint                       ;                  funnel@30083000       +   !arm,coresight-dynamic-funnel arm,primecell          O00            q      J      	  6apb_pclk       in-ports                                 port@0          O       endpoint                       ;            port@1          O      endpoint                out-ports      port       endpoint                       ;                  etf@30084000              !arm,coresight-tmc arm,primecell         O0@            q      J      	  6apb_pclk       in-ports       port       endpoint                       ;               out-ports      port       endpoint                       ;   
               etr@30086000              !arm,coresight-tmc arm,primecell         O0`            q      J      	  6apb_pclk       in-ports       port       endpoint                       ;   	               tpiu@30087000         !   !arm,coresight-tpiu arm,primecell            O0p            q      J      	  6apb_pclk       in-ports       port       endpoint                       ;                  interrupt-controller@31001000            !arm,cortex-a7-gic           l      	                              [            O1     1       1 @     1 `             ;         bus@30000000             !fsl,aips-bus simple-bus                                  O0    @              gpio@30200000            !fsl,imx7d-gpio fsl,imx35-gpio           O0              l       @          A                                                                                      ;   ]      gpio@30210000            !fsl,imx7d-gpio fsl,imx35-gpio           O0!             l       B          C                                                                         ;   a      gpio@30220000            !fsl,imx7d-gpio fsl,imx35-gpio           O0"             l       D          E                                                             -         gpio@30230000            !fsl,imx7d-gpio fsl,imx35-gpio           O0#             l       F          G                                                             J           ;   -      gpio@30240000            !fsl,imx7d-gpio fsl,imx35-gpio           O0$             l       H          I                                                             b           ;   E      gpio@30250000            !fsl,imx7d-gpio fsl,imx35-gpio           O0%             l       J          K                                                             t           ;   O      gpio@30260000            !fsl,imx7d-gpio fsl,imx35-gpio           O0&             l       L          M                                                                      watchdog@30280000            !fsl,imx7d-wdt fsl,imx21-wdt         O0(             l       N           q     B        default         %            /        Dokay          watchdog@30290000            !fsl,imx7d-wdt fsl,imx21-wdt         O0)             l       O           q           	  Ddisabled          watchdog@302a0000            !fsl,imx7d-wdt fsl,imx21-wdt         O0*             l       
           q           	  Ddisabled          watchdog@302b0000            !fsl,imx7d-wdt fsl,imx21-wdt         O0+             l       m           q           	  Ddisabled          pinctrl@302c0000             !fsl,imx7d-iomuxc-lpsr           O0,             K           ;      wificlkgrp          Y      <              }        ;   G      reglcdongrp         Y      H               Y        ;   \      wdoggrp         Y       0              t        ;            timer@302d0000           !fsl,imx7d-gpt fsl,imx6sx-gpt            O0-             l       7           q     .     .        6ipg per       timer@302e0000           !fsl,imx7d-gpt fsl,imx6sx-gpt            O0.             l       6           q     2     2        6ipg per       	  Ddisabled          timer@302f0000           !fsl,imx7d-gpt fsl,imx6sx-gpt            O0/             l       5           q     6     6        6ipg per       	  Ddisabled          timer@30300000           !fsl,imx7d-gpt fsl,imx6sx-gpt            O00             l       4           q     :     :        6ipg per       	  Ddisabled          keypad@30320000          !fsl,imx7d-kpp fsl,imx21-kpp         O02             l       P           q           	  Ddisabled          pinctrl@30330000             !fsl,imx7d-iomuxc            O03             ;      ecspi3grp         `  Y  H    H            L    L            P    D            T                        ;   .      i2c1grp       0  Y  ,           @    (           @          ;   4      i2c2grp       0  Y  4           @    0           @          ;   8      enet1grp         h  Y      h                              X                   D                   H                   L                   P                   T                   @                   ,                   0                   4                   8                   <                     l                      ;   M      can1frp       0  Y     p           Y    t              Y        ;   2      can2frp       0  Y    x           Y    |              Y        ;   3      i2c4grp       0  Y            @              @          ;   9      lcdifgrp           Y     8  8          y     <  <          y     @  @          y     D  D          y     H  H          y     L  L          y     P  P          y     T  T          y     X  X          y     \  \          y     `  `          y     d  d          y     h  h          y     l  l          y     p  p          y    t  t          y    x  x          y    |  |          y                y                y                y                y                 y  $              y     $               y     (               x     0            x     ,               x     4                      ;   (      pwm1            Y     l                      ;   #      pwm2            Y     p                      ;   $      pwm3            Y     t                      ;   %      pwm4grp         Y      x                      ;   &      regregongrp         Y  h                Y        ;   ^      sai1grp       `  Y  `               d               h                0  \                     ;   0      uart5grp          0  Y  d                y  `              y        ;   :      uart6grp          `  Y   T              y   X                y   \              y   `                y        ;   ;      uart7grp          `  Y  |                y  x    $         y                  y                y        ;   <      usbotg_pwr          Y  <                        ;   _      usdhc1grp           Y                   Y                                      Y                   Y                   Y                   Y                          ;   B      usdhc1grp_100mhz            Y                   Z                                      Z                   Z                   Z                   Z                          ;   C      usdhc1grp_200mhz            Y                   [                                      [                   [                   [                   [                          ;   D      usdhc2grp           Y    ,               Y    (                   0               Y    4               Y    8               Y    <               Y        ;   F      usdhc3grp           Y    D               Y    @                   H               Y    L               Y    P               Y    T               Y    X               Y    \               Y    `               Y    d               Y        ;   J      usdhc3grp_100mhz            Y    D               Z    @                   H               Z    L               Z    P               Z    T               Z    X               Z    \               Z    `               Z    d               Z        ;   K      usdhc3grp_200mhz            Y    D               [    @                   H               [    L               [    P               [    T               [    X               [    \               [    `               [    d               [        ;   L      gpioledsgrp         Y   h                        ;   `         iomuxc-gpr@30340000       <   !fsl,imx7d-iomuxc-gpr fsl,imx6q-iomuxc-gpr syscon simple-mfd         O04             ;   1   mux-controller        	   !mmio-mux            b           u              ;         csi-mux       
   !video-mux                                                  	  Ddisabled       port@0          O          port@1          O      endpoint                       ;   ,         port@2          O      endpoint                       ;   '               efuse@30350000                                    !fsl,imx7d-ocotp syscon          O05             q        calib@3c            O   <           ;         fuse-grade@10           O              ;            anatop@30360000       4   !fsl,imx7d-anatop fsl,imx6q-anatop syscon simple-mfd         O06             l       1          3           ;      regulator-vdd1p0d            !fsl,anatop-regulator            vdd1p0d          5          O                                                    5         1 O        D            ;   !      regulator-vdd1p2             !fsl,anatop-regulator            vdd1p2                                                                                  1          D            ;   "      tempmon          !fsl,imx7d-tempmon           [           l       1           V                         calib temp_grade            q               snvs@30370000         #   !fsl,sec-v4.0-mon syscon simple-mfd          O07             ;      snvs-rtc-lp          !fsl,sec-v4.0-mon-rtc-lp         b              4        l                            q           	  6snvs-rtc          snvs-powerkey            !fsl,sec-v4.0-pwrkey         b           l                  q             6snvs-pwrkey         i   t         w      	  Ddisabled             clock-controller@30380000            !fsl,imx7d-ccm           O08             l       U          V                      q             	  6ckil osc                 U     W                                    ;         reset-controller@30390000            !fsl,imx7d-src syscon            O09             l       Y                      ;   +      gpc@303a0000             !fsl,imx7d-gpc           O0:                      l       W                      [                      ;      pgc                              power-domain@0                      O               !        ;   *      power-domain@1                      O              !        ;   V      power-domain@2                      O              "        ;                  bus@30400000             !fsl,aips-bus simple-bus                                  O0@   @              adc@30610000             !fsl,imx7d-adc           O0a             l       b           q             6adc                  	  Ddisabled          adc@30620000             !fsl,imx7d-adc           O0b             l       c           q             6adc                  	  Ddisabled          spi@30630000                                        !fsl,imx7d-ecspi fsl,imx51-ecspi         O0c             l       "           q     
     
        6ipg per       	  Ddisabled          pwm@30640000             !fsl,vf610-ftm-pwm           O0d                        l                '  6ftm_sys ftm_ext ftm_fix ftm_cnt_clk_en           q                          	  Ddisabled          pwm@30650000             !fsl,vf610-ftm-pwm           O0e                        l                '  6ftm_sys ftm_ext ftm_fix ftm_cnt_clk_en           q     "     "     "     "      	  Ddisabled          pwm@30660000             !fsl,imx7d-pwm fsl,imx27-pwm         O0f             l       Q           q                  6ipg per                    Dokay            default         %   #      pwm@30670000             !fsl,imx7d-pwm fsl,imx27-pwm         O0g             l       R           q                  6ipg per                    Dokay            default         %   $      pwm@30680000             !fsl,imx7d-pwm fsl,imx27-pwm         O0h             l       S           q                  6ipg per                    Dokay            default         %   %      pwm@30690000             !fsl,imx7d-pwm fsl,imx27-pwm         O0i             l       T           q                  6ipg per                    Dokay            default         %   &        ;   X      csi@30710000             !fsl,imx7-csi            O0q             l                  q          F             6axi mclk dcic         	  Ddisabled       port       endpoint               '        ;               lcdif@30730000            !fsl,imx7d-lcdif fsl,imx28-lcdif         O0s             l                  q      ~      ~        6pix axi         Dokay            default         %   (   port       endpoint               )        ;   [            mipi-csi@30750000            !fsl,imx7-mipi-csi2          O0u             l                  q                         6pclk wrap phy           M   *           !           +         	  Ddisabled       ports                                port@0          O          port@1          O      endpoint               ,        ;                  pcie-phy@306d0000            !fsl,imx7d-pcie-phy          O0m           	  Ddisabled            ;   W         bus@30800000             !fsl,aips-bus simple-bus                                  O0   @              spba-bus@30800000            !fsl,spba-bus simple-bus                                  O0                 spi@30820000                                        !fsl,imx7d-ecspi fsl,imx51-ecspi         O0             l                  q                    6ipg per       	  Ddisabled          spi@30830000                                        !fsl,imx7d-ecspi fsl,imx51-ecspi         O0             l                   q                  6ipg per       	  Ddisabled          spi@30840000                                        !fsl,imx7d-ecspi fsl,imx51-ecspi         O0             l       !           q                  6ipg per         Dokay               -              default         %   .      serial@30860000          !fsl,imx7d-uart fsl,imx6q-uart           O0             l                  q                    6ipg per       	  Ddisabled          serial@30890000          !fsl,imx7d-uart fsl,imx6q-uart           O0             l                  q                    6ipg per       	  Ddisabled          serial@30880000          !fsl,imx7d-uart fsl,imx6q-uart           O0             l                  q                    6ipg per       	  Ddisabled          sai@308a0000            '             !fsl,imx7d-sai fsl,imx6sx-sai            O0             l       _            q                             6bus mclk1 mclk2 mclk3           8rx tx            B   /             /   	               Dokay            default         %   0                                             w          ;   b      sai@308b0000            '             !fsl,imx7d-sai fsl,imx6sx-sai            O0             l       `            q                             6bus mclk1 mclk2 mclk3           8rx tx            B   /   
          /                	  Ddisabled          sai@308c0000            '             !fsl,imx7d-sai fsl,imx6sx-sai            O0             l       2            q                             6bus mclk1 mclk2 mclk3           8rx tx            B   /             /                	  Ddisabled             crypto@30900000          !fsl,sec-v4.0                                     O0                 0             l       [           q           Z      	  6ipg aclk       jr@1000          !fsl,sec-v4.0-job-ring           O              l       i         jr@2000          !fsl,sec-v4.0-job-ring           O               l       j         jr@3000          !fsl,sec-v4.0-job-ring           O  0            l       r            can@30a00000          $   !fsl,imx7d-flexcan fsl,imx6q-flexcan         O0             l       n           q                   6ipg per         G   1              Dokay            default         %   2      can@30a10000          $   !fsl,imx7d-flexcan fsl,imx6q-flexcan         O0             l       o           q                   6ipg per         G   1              Dokay            default         %   3      i2c@30a20000                                       !fsl,imx7d-i2c fsl,imx21-i2c         O0             l       #           q              Dokay            S         default         %   4   audio-codec@a           O   
         !fsl,sgtl5000            q   5        U   6        a   7        ;   c      adc@52           !ti,adc081c          O   R        n   6         i2c@30a30000                                       !fsl,imx7d-i2c fsl,imx21-i2c         O0             l       $           q              Dokay            default         %   8        S    rtc@68           !dallas,ds1337           O   h         i2c@30a40000                                       !fsl,imx7d-i2c fsl,imx21-i2c         O0             l       %           q            	  Ddisabled          i2c@30a50000                                       !fsl,imx7d-i2c fsl,imx21-i2c         O0             l       &           q              Dokay            default         %   9   pfuze3000@8          !fsl,pfuze3000           O      regulators     sw1a             
`         2Z         z                   j      sw1b             
`                  z                   j      sw2          w@         :         z               sw3                   -P         z               swbst            LK@         N0      vsnvs            B@         -         z               vrefddr          z               vldo1            w@         2Z               vldo2            5                vccsd            +|         2Z               v33          +|         2Z               vldo3            w@         2Z               vldo4            w@         2Z                        serial@30a60000          !fsl,imx7d-uart fsl,imx6q-uart           O0             l                  q                    6ipg per       	  Ddisabled          serial@30a70000          !fsl,imx7d-uart fsl,imx6q-uart           O0             l                  q                    6ipg per         Dokay            default         %   :                                  serial@30a80000          !fsl,imx7d-uart fsl,imx6q-uart           O0             l                  q                    6ipg per         Dokay            default         %   ;                                            serial@30a90000          !fsl,imx7d-uart fsl,imx6q-uart           O0             l       ~           q                    6ipg per         Dokay            default         %   <                                           mailbox@30aa0000             !fsl,imx7s-mu fsl,imx6sx-mu          O0             l       X           q                      	  Ddisabled          mailbox@30ab0000             !fsl,imx7s-mu fsl,imx6sx-mu          O0             l       a           q                               	  Ddisabled          usb@30b10000             !fsl,imx7d-usb fsl,imx27-usb         O0             l       +           q                =           >                      Dokay               ?      usb@30b30000             !fsl,imx7d-usb fsl,imx27-usb         O0             l       (           q                @           A            hsic             host                    	  Ddisabled          usbmisc@30b10200            (         $   !fsl,imx7d-usbmisc fsl,imx6q-usbmisc         O0            ;   >      usbmisc@30b30200            (         $   !fsl,imx7d-usbmisc fsl,imx6q-usbmisc         O0            ;   A      mmc@30b40000          !   !fsl,imx7d-usdhc fsl,imx6sl-usdhc            O0             l                  q           V              6ipg ahb per         5           Dokay          "  default state_100mhz state_200mhz           %   B        ?   C        I   D        S   E               \           l   7         w         x               mmc@30b50000          !   !fsl,imx7d-usdhc fsl,imx6sl-usdhc            O0             l                  q           V              6ipg ahb per         5           Dokay            default         %   F   G         x                           w        l   H           I      mmc@30b60000          !   !fsl,imx7d-usdhc fsl,imx6sl-usdhc            O0             l                  q           V              6ipg ahb per         5           Dokay          "  default state_100mhz state_200mhz           %   J        ?   K        I   L                      ׄ          x        \                  spi@30bb0000             !fsl,imx7d-qspi          O0     `              QuadSPI QuadSPI-memory                                    l       k           q                    6qspi_en qspi          	  Ddisabled          dma-controller@30bd0000          !fsl,imx7d-sdma fsl,imx35-sdma           O0             l                  q                  6ipg ahb                    imx/sdma/sdma-imx7d.bin         ;   /      ethernet@30be0000            !fsl,imx7d-fec fsl,imx6sx-fec            O0             int0 int1 int2 pps        0  l       x          v          w          y         (  q            R            *            "  6ipg ahb ptp enet_clk_ref enet_out                                  G   1              Dokay            default         %   M                                  +                   	  rgmii-id               N         &        7   O         mdio                                 ethernet-phy@1           !ethernet-phy-ieee802.3-c22          O           Dokay            ;   N            usb@30b20000             !fsl,imx7d-usb fsl,imx27-usb         O0             l       *           q                P           Q                      Dokay               R         host          usbmisc@30b20200            (         $   !fsl,imx7d-usbmisc fsl,imx6q-usbmisc         O0            ;   Q      ethernet@30bf0000            !fsl,imx7d-fec fsl,imx6sx-fec            O0             int0 int1 int2 pps        0  l       f          d          e          g         (  q            R            *            "  6ipg ahb ptp enet_clk_ref enet_out                                  G   1            	  Ddisabled             dma-apbh@33000000         &   !fsl,imx7d-dma-apbh fsl,imx28-dma-apbh           O3             0  l                                                gpmi0 gpmi1 gpmi2 gpmi3                    G           q             ;   S      nand-controller@33002000             !fsl,imx7d-gpmi-nand                                  O3       3 @   @         gpmi-nand bch           l                  bch         q                  6gpmi_io gpmi_bch_apb            B   S            8rx-tx         	  Ddisabled                                (      etm@3007d000          "   !arm,coresight-etm3x arm,primecell           O0            T V           T        q      J      	  6apb_pclk       out-ports      port       endpoint               U        ;                  pcie@33800000            !fsl,imx7d-pcie          O3    @ O             dbi config                                   Cpci         k             0             O                @   @                 u           l       z           msi                                                                    }                            |                            {                            z           q      r      +      v        6pcie pcie_bus pcie_phy                s      w              )      +                   M   V           +      +      +           pciephy apps turnoff               W      	  Ddisabled             usbphynop2           !usb-nop-xceiv           q           	  6main_clk            B            ;   P      backlight            !pwm-backlight              X      P                    $   H   l                               ;   Y      memory@80000000         Cmemory          O             panel            !vxt,vl050-8048nt-c01               Y           Z   port       endpoint               [        ;   )            regulator-lcd-3v3            !regulator-fixed         default         %   \        lcd-3v3          2Z         2Z           ]                        ;   Z      regulator-wlreg_on           !regulator-fixed         default         %   ^      	  wlreg_on             2Z         2Z           -                        ;   H      regulator-2p5v           !regulator-fixed         2P5V             &%         &%                 ;   6      regulator-3p3v           !regulator-fixed         3P3V             2Z         2Z                 ;   7      regulator-usb-otg1-vbus         default         %   _         !regulator-fixed         usb_otg1_vbus            LK@         LK@           -              ;   ?      regulator-usb-otg2-vbus          !regulator-fixed         usb_otg2_vbus            LK@         LK@        ;   R      regulator-vref-1v8           !regulator-fixed       	  vref-1v8             w@         w@      usdhc2_pwrseq            !mmc-pwrseq-simple           q     W      
  6ext_clock           ;   I      leds          
   !gpio-leds           default         %   `   led       	  $gpio-led            !   a                sound            !fsl,imx-audio-sgtl5000           imx7d-sgtl5000          *   b        4   c      M  @LINE_IN Line In Jack MIC_IN Mic Jack Mic Jack Mic Bias Headphone Jack HP_OUT          clock-sys-mclk           !fixed-clock                     Sw          ;   5         	#address-cells #size-cells model compatible gpio0 gpio1 gpio2 gpio3 gpio4 gpio5 gpio6 i2c0 i2c1 i2c2 i2c3 mmc0 mmc1 mmc2 serial0 serial1 serial2 serial3 serial4 serial5 serial6 spi0 spi1 spi2 spi3 usb0 usb1 usb2 entry-method arm,psci-suspend-param local-timer-stop entry-latency-us exit-latency-us min-residency-us phandle device_type reg clock-frequency clock-latency clocks cpu-idle-states operating-points-v2 #cooling-cells nvmem-cells nvmem-cell-names opp-shared opp-hz opp-microvolt clock-latency-ns opp-supported-hw opp-suspend #clock-cells clock-output-names clock-names #phy-cells power-domains interrupt-parent interrupts interrupt-affinity remote-endpoint arm,cpu-registers-not-fw-configured ranges cpu #interrupt-cells interrupt-controller gpio-controller #gpio-cells gpio-ranges pinctrl-names pinctrl-0 fsl,ext-reset-output status fsl,input-sel fsl,pins #mux-control-cells mux-reg-masks mux-controls regulator-name regulator-min-microvolt regulator-max-microvolt anatop-reg-offset anatop-vol-bit-shift anatop-vol-bit-width anatop-min-bit-val anatop-min-voltage anatop-max-voltage anatop-enable-bit fsl,tempmon regmap linux,keycode wakeup-source assigned-clocks assigned-clock-parents assigned-clock-rates #reset-cells #power-domain-cells power-supply #io-channel-cells #pwm-cells phy-supply resets cs-gpios #sound-dai-cells dma-names dmas fsl,stop-mode VDDA-supply VDDIO-supply vref-supply regulator-boot-on regulator-always-on regulator-ramp-delay uart-has-rtscts #mbox-cells fsl,mu-side-b fsl,usbphy fsl,usbmisc phy-clkgate-delay-us vbus-supply phy_type dr_mode #index-cells bus-width pinctrl-1 pinctrl-2 cd-gpios fsl,tuning-step vmmc-supply no-1-8-v keep-power-in-suspend non-removable mmc-pwrseq reg-names #dma-cells fsl,sdma-ram-script-name interrupt-names fsl,num-tx-queues fsl,num-rx-queues phy-mode phy-handle fsl,magic-packet phy-reset-gpios dma-channels arm,primecell-periphid bus-range num-lanes interrupt-map-mask interrupt-map fsl,max-link-speed reset-names fsl,imx7d-pcie-phy pwms brightness-levels default-brightness-level backlight gpio enable-active-high label audio-cpu audio-codec audio-routing 