1 STA32X audio CODEC
2
3 The driver for this device only supports I2C.
4
5 Required properties:
6
7 - compatible: "st,sta32x"
8 - reg: the I2C address of the device for I2C
9 - reset-gpios: a GPIO spec for the reset pin
10 deasserted before communicati
11
12 - power-down-gpios: a GPIO spec for the powe
13 it will be deasserted be
14 starts.
15
16 - Vdda-supply: regulator spec, providing 3.3
17 - Vdd3-supply: regulator spec, providing 3.3
18 - Vcc-supply: regulator spec, providing 5V -
19
20 Optional properties:
21
22 - clocks, clock-names: Clock specifier for X
23 If specified, the clock will be enable
24 and disabled when it is removed. The '
25
26 - st,output-conf: number, Selects the outpu
27 0: 2-channel (full-bridge) power, 2-ch
28 1: 2 (half-bridge). 1 (full-bridge) on
29 2: 2 Channel (Full-Bridge) Power, 1 Ch
30 3: 1 Channel Mono-Parallel
31 If parameter is missing, mode 0 will b
32 This property has to be specified as '
33
34 - st,ch1-output-mapping: Channel 1 output m
35 - st,ch2-output-mapping: Channel 2 output m
36 - st,ch3-output-mapping: Channel 3 output m
37 0: Channel 1
38 1: Channel 2
39 2: Channel 3
40 If parameter is missing, channel 1 is
41 This properties have to be specified a
42
43 - st,thermal-warning-recover:
44 If present, thermal warning recovery i
45
46 - st,fault-detect-recovery:
47 If present, fault detect recovery is e
48
49 - st,thermal-warning-adjustment:
50 If present, thermal warning adjustment
51
52 - st,fault-detect-recovery:
53 If present, then fault recovery will b
54
55 - st,drop-compensation-ns: number
56 Only required for "st,ffx-power-output
57 "variable-drop-compensation".
58 Specifies the drop compensation in nan
59 The value must be in the range of 0..3
60 multiples of 20 are allowed. Default i
61
62 - st,max-power-use-mpcc:
63 If present, then MPCC bits are used fo
64 otherwise standard MPC coefficients ar
65
66 - st,max-power-corr:
67 If present, power bridge correction fo
68 power output is enabled.
69
70 - st,am-reduction-mode:
71 If present, FFX mode runs in AM reduct
72 FFX mode is used.
73
74 - st,odd-pwm-speed-mode:
75 If present, PWM speed mode run on odd
76 channels. If not present, normal PWM s
77
78 - st,invalid-input-detect-mute:
79 If present, automatic invalid input de
80
81 Example:
82
83 codec: sta32x@38 {
84 compatible = "st,sta32x";
85 reg = <0x1c>;
86 clocks = <&clock>;
87 clock-names = "xti";
88 reset-gpios = <&gpio1 19 0>;
89 power-down-gpios = <&gpio1 16 0>;
90 st,output-conf = /bits/ 8 <0x3>;
91
92
93 st,ch1-output-mapping = /bits/ 8 <0>;
94 st,ch2-output-mapping = /bits/ 8 <0>;
95 st,ch3-output-mapping = /bits/ 8 <0>;
96 st,max-power-correction;
97
98
99 st,invalid-input-detect-mute;
100
101 };
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