qcom,lpass-cpu.txt

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 * Qualcomm Technologies LPASS CPU DAI
    2 
    3 This node models the Qualcomm Technologies Low-Power Audio SubSystem (LPASS).
    4 
    5 Required properties:
    6 
    7 - compatible            : "qcom,lpass-cpu" or "qcom,apq8016-lpass-cpu"
    8 - clocks                : Must contain an entry for each entry in clock-names.
    9 - clock-names           : A list which must include the following entries:
   10                                 * "ahbix-clk"
   11                                 * "mi2s-osr-clk"
   12                                 * "mi2s-bit-clk"
   13                         : required clocks for "qcom,lpass-cpu-apq8016"
   14                                 * "ahbix-clk"
   15                                 * "mi2s-bit-clk0"
   16                                 * "mi2s-bit-clk1"
   17                                 * "mi2s-bit-clk2"
   18                                 * "mi2s-bit-clk3"
   19                                 * "pcnoc-mport-clk"
   20                                 * "pcnoc-sway-clk"
   21 
   22 - interrupts            : Must contain an entry for each entry in
   23                           interrupt-names.
   24 - interrupt-names       : A list which must include the following entries:
   25                                 * "lpass-irq-lpaif"
   26 - pinctrl-N             : One property must exist for each entry in
   27                           pinctrl-names.  See ../pinctrl/pinctrl-bindings.txt
   28                           for details of the property values.
   29 - pinctrl-names         : Must contain a "default" entry.
   30 - reg                   : Must contain an address for each entry in reg-names.
   31 - reg-names             : A list which must include the following entries:
   32                                 * "lpass-lpaif"
   33 - #address-cells        : Must be 1
   34 - #size-cells           : Must be 0
   35 
   36 
   37 
   38 Optional properties:
   39 
   40 - qcom,adsp             : Phandle for the audio DSP node
   41 
   42 By default, the driver uses up to 4 MI2S SD lines, for a total of 8 channels.
   43 The SD lines to use can be configured by adding subnodes for each of the DAIs.
   44 
   45 Required properties for each DAI (represented by a subnode):
   46 - reg                   : Must be one of the DAI IDs
   47                           (usually part of dt-bindings header)
   48 - qcom,playback-sd-lines: List of serial data lines to use for playback
   49                           Each SD line should be represented by a number from 0-3.
   50 - qcom,capture-sd-lines : List of serial data lines to use for capture
   51                           Each SD line should be represented by a number from 0-3.
   52 
   53 Note that adding a subnode changes the default to "no lines configured",
   54 so both playback and capture lines should be configured when a subnode is added.
   55 
   56 Example:
   57 
   58 lpass@28100000 {
   59         compatible = "qcom,lpass-cpu";
   60         clocks = <&lcc AHBIX_CLK>, <&lcc MI2S_OSR_CLK>, <&lcc MI2S_BIT_CLK>;
   61         clock-names = "ahbix-clk", "mi2s-osr-clk", "mi2s-bit-clk";
   62         interrupts = <0 85 1>;
   63         interrupt-names = "lpass-irq-lpaif";
   64         pinctrl-names = "default", "idle";
   65         pinctrl-0 = <&mi2s_default>;
   66         pinctrl-1 = <&mi2s_idle>;
   67         reg = <0x28100000 0x10000>;
   68         reg-names = "lpass-lpaif";
   69         qcom,adsp = <&adsp>;
   70 
   71         #address-cells = <1>;
   72         #size-cells = <0>;
   73 
   74         /* Optional to set different MI2S SD lines */
   75         dai@3 {
   76                 reg = <MI2S_QUATERNARY>;
   77                 qcom,playback-sd-lines = <0 1>;
   78         };
   79 };

Cache object: 52c022920cbc89da9f898999144cbeca

[ 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.

FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/sound/qcom,lpass-cpu.txt

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/sound/qcom,lpass-cpu.txt