stih407-c8sectpfe.txt

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    1 STMicroelectronics STi c8sectpfe binding
    2 ============================================
    3 
    4 This document describes the c8sectpfe device bindings that is used to get transport
    5 stream data into the SoC on the TS pins, and into DDR for further processing.
    6 
    7 It is typically used in conjunction with one or more demodulator and tuner devices
    8 which converts from the RF to digital domain. Demodulators and tuners are usually
    9 located on an external DVB frontend card connected to SoC TS input pins.
   10 
   11 Currently 7 TS input (tsin) channels are supported on the stih407 family SoC.
   12 
   13 Required properties (controller (parent) node):
   14 - compatible    : Should be "stih407-c8sectpfe"
   15 
   16 - reg           : Address and length of register sets for each device in
   17                   "reg-names"
   18 
   19 - reg-names     : The names of the register addresses corresponding to the
   20                   registers filled in "reg":
   21                         - c8sectpfe: c8sectpfe registers
   22                         - c8sectpfe-ram: c8sectpfe internal sram
   23 
   24 - clocks        : phandle list of c8sectpfe clocks
   25 - clock-names   : should be "c8sectpfe"
   26 See: Documentation/devicetree/bindings/clock/clock-bindings.txt
   27 
   28 - pinctrl-names : a pinctrl state named tsin%d-serial or tsin%d-parallel (where %d is tsin-num)
   29                    must be defined for each tsin child node.
   30 - pinctrl-0     : phandle referencing pin configuration for this tsin configuration
   31 See: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
   32 
   33 
   34 Required properties (tsin (child) node):
   35 
   36 - tsin-num      : tsin id of the InputBlock (must be between 0 to 6)
   37 - i2c-bus       : phandle to the I2C bus DT node which the demodulators & tuners on this tsin channel are connected.
   38 - reset-gpios   : reset gpio for this tsin channel.
   39 
   40 Optional properties (tsin (child) node):
   41 
   42 - invert-ts-clk         : Bool property to control sense of ts input clock (data stored on falling edge of clk).
   43 - serial-not-parallel   : Bool property to configure input bus width (serial on ts_data<7>).
   44 - async-not-sync        : Bool property to control if data is received in asynchronous mode
   45                            (all bits/bytes with ts_valid or ts_packet asserted are valid).
   46 
   47 - dvb-card              : Describes the NIM card connected to this tsin channel.
   48 
   49 Example:
   50 
   51 /* stih410 SoC b2120 + b2004a + stv0367-pll(NIMB) + stv0367-tda18212 (NIMA) DT example) */
   52 
   53         c8sectpfe@8a20000 {
   54                 compatible = "st,stih407-c8sectpfe";
   55                 reg = <0x08a20000 0x10000>, <0x08a00000 0x4000>;
   56                 reg-names = "stfe", "stfe-ram";
   57                 interrupts = <GIC_SPI 34 IRQ_TYPE_NONE>, <GIC_SPI 35 IRQ_TYPE_NONE>;
   58                 interrupt-names = "stfe-error-irq", "stfe-idle-irq";
   59                 pinctrl-0       = <&pinctrl_tsin0_serial>;
   60                 pinctrl-1       = <&pinctrl_tsin0_parallel>;
   61                 pinctrl-2       = <&pinctrl_tsin3_serial>;
   62                 pinctrl-3       = <&pinctrl_tsin4_serial_alt3>;
   63                 pinctrl-4       = <&pinctrl_tsin5_serial_alt1>;
   64                 pinctrl-names   = "tsin0-serial",
   65                                   "tsin0-parallel",
   66                                   "tsin3-serial",
   67                                   "tsin4-serial",
   68                                   "tsin5-serial";
   69                 clocks = <&clk_s_c0_flexgen CLK_PROC_STFE>;
   70                 clock-names = "c8sectpfe";
   71 
   72                 /* tsin0 is TSA on NIMA */
   73                 tsin0: port@0 {
   74                         tsin-num                = <0>;
   75                         serial-not-parallel;
   76                         i2c-bus                 = <&ssc2>;
   77                         reset-gpios             = <&pio15 4 GPIO_ACTIVE_HIGH>;
   78                         dvb-card                = <STV0367_TDA18212_NIMA_1>;
   79                 };
   80 
   81                 tsin3: port@3 {
   82                         tsin-num                = <3>;
   83                         serial-not-parallel;
   84                         i2c-bus                 = <&ssc3>;
   85                         reset-gpios             = <&pio15 7 GPIO_ACTIVE_HIGH>;
   86                         dvb-card                = <STV0367_TDA18212_NIMB_1>;
   87                 };
   88         };

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