3 The driver for this device only supports I2C.
7 - compatible: "st,sta32x"
8 - reg: the I2C address of the device for I2C
9 - reset-gpios: a GPIO spec for the reset pin. If specified, it will be
10 deasserted before communication to the codec starts.
12 - power-down-gpios: a GPIO spec for the power down pin. If specified,
13 it will be deasserted before communication to the codec
16 - Vdda-supply: regulator spec, providing 3.3V
17 - Vdd3-supply: regulator spec, providing 3.3V
18 - Vcc-supply: regulator spec, providing 5V - 26V
22 - st,output-conf: number, Selects the output configuration:
23 0: 2-channel (full-bridge) power, 2-channel data-out
24 1: 2 (half-bridge). 1 (full-bridge) on-board power
25 2: 2 Channel (Full-Bridge) Power, 1 Channel FFX
26 3: 1 Channel Mono-Parallel
27 If parameter is missing, mode 0 will be enabled.
28 This property has to be specified as '/bits/ 8' value.
30 - st,ch1-output-mapping: Channel 1 output mapping
31 - st,ch2-output-mapping: Channel 2 output mapping
32 - st,ch3-output-mapping: Channel 3 output mapping
36 If parameter is missing, channel 1 is chosen.
37 This properties have to be specified as '/bits/ 8' values.
39 - st,thermal-warning-recover:
40 If present, thermal warning recovery is enabled.
42 - st,thermal-warning-adjustment:
43 If present, thermal warning adjustment is enabled.
45 - st,fault-detect-recovery:
46 If present, then fault recovery will be enabled.
48 - st,drop-compensation-ns: number
49 Only required for "st,ffx-power-output-mode" ==
50 "variable-drop-compensation".
51 Specifies the drop compensation in nanoseconds.
52 The value must be in the range of 0..300, and only
53 multiples of 20 are allowed. Default is 140ns.
55 - st,max-power-use-mpcc:
56 If present, then MPCC bits are used for MPC coefficients,
57 otherwise standard MPC coefficients are used.
60 If present, power bridge correction for THD reduction near maximum
61 power output is enabled.
63 - st,am-reduction-mode:
64 If present, FFX mode runs in AM reduction mode, otherwise normal
67 - st,odd-pwm-speed-mode:
68 If present, PWM speed mode run on odd speed mode (341.3 kHz) on all
69 channels. If not present, normal PWM spped mode (384 kHz) will be used.
71 - st,invalid-input-detect-mute:
72 If present, automatic invalid input detect mute is enabled.
77 compatible = "st,sta32x";
79 reset-gpios = <&gpio1 19 0>;
80 power-down-gpios = <&gpio1 16 0>;
81 st,output-conf = /bits/ 8 <0x3>; // set output to 2-channel
82 // (full-bridge) power,
84 st,ch1-output-mapping = /bits/ 8 <0>; // set channel 1 output ch 1
85 st,ch2-output-mapping = /bits/ 8 <0>; // set channel 2 output ch 1
86 st,ch3-output-mapping = /bits/ 8 <0>; // set channel 3 output ch 1
87 st,max-power-correction; // enables power bridge
88 // correction for THD reduction
89 // near maximum power output
90 st,invalid-input-detect-mute; // mute if no valid digital
91 // audio signal is provided.