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| STA350 audio CODEC | ||
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| The driver for this device only supports I2C. | ||
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| Required properties: | ||
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| - compatible: "st,sta350" | ||
| - reg: the I2C address of the device for I2C | ||
| - reset-gpios: a GPIO spec for the reset pin. If specified, it will be | ||
| deasserted before communication to the codec starts. | ||
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| - power-down-gpios: a GPIO spec for the power down pin. If specified, | ||
| it will be deasserted before communication to the codec | ||
| starts. | ||
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| - vdd-dig-supply: regulator spec, providing 3.3V | ||
| - vdd-pll-supply: regulator spec, providing 3.3V | ||
| - vcc-supply: regulator spec, providing 5V - 26V | ||
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| Optional properties: | ||
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| - st,output-conf: number, Selects the output configuration: | ||
| 0: 2-channel (full-bridge) power, 2-channel data-out | ||
| 1: 2 (half-bridge). 1 (full-bridge) on-board power | ||
| 2: 2 Channel (Full-Bridge) Power, 1 Channel FFX | ||
| 3: 1 Channel Mono-Parallel | ||
| If parameter is missing, mode 0 will be enabled. | ||
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| - st,ch1-output-mapping: Channel 1 output mapping | ||
| - st,ch2-output-mapping: Channel 2 output mapping | ||
| - st,ch3-output-mapping: Channel 3 output mapping | ||
| 0: Channel 1 | ||
| 1: Channel 2 | ||
| 2: Channel 3 | ||
| If parameter is missing, channel 1 is choosen. | ||
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| - st,thermal-warning-recover: | ||
| If present, thermal warning recovery is enabled. | ||
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| - st,thermal-warning-adjustment: | ||
| If present, thermal warning adjustment is enabled. | ||
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| - st,fault-detect-recovery: | ||
| If present, then fault recovery will be enabled. | ||
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| - st,ffx-power-output-mode: string | ||
| The FFX power output mode selects how the FFX output timing is | ||
| configured. Must be one of these values: | ||
| - "drop-compensation" | ||
| - "tapered-compensation" | ||
| - "full-power-mode" | ||
| - "variable-drop-compensation" (default) | ||
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| - st,drop-compensation-ns: number | ||
| Only required for "st,ffx-power-output-mode" == | ||
| "variable-drop-compensation". | ||
| Specifies the drop compensation in nanoseconds. | ||
| The value must be in the range of 0..300, and only | ||
| multiples of 20 are allowed. Default is 140ns. | ||
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| - st,overcurrent-warning-adjustment: | ||
| If present, overcurrent warning adjustment is enabled. | ||
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| - st,max-power-use-mpcc: | ||
| If present, then MPCC bits are used for MPC coefficients, | ||
| otherwise standard MPC coefficients are used. | ||
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| - st,max-power-corr: | ||
| If present, power bridge correction for THD reduction near maximum | ||
| power output is enabled. | ||
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| - st,am-reduction-mode: | ||
| If present, FFX mode runs in AM reduction mode, otherwise normal | ||
| FFX mode is used. | ||
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| - st,odd-pwm-speed-mode: | ||
| If present, PWM speed mode run on odd speed mode (341.3 kHz) on all | ||
| channels. If not present, normal PWM spped mode (384 kHz) will be used. | ||
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| - st,distortion-compensation: | ||
| If present, distortion compensation variable uses DCC coefficient. | ||
| If not present, preset DC coefficient is used. | ||
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| - st,invalid-input-detect-mute: | ||
| If not present, automatic invalid input detect mute is enabled. | ||
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| Example: | ||
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| codec: sta350@38 { | ||
| compatible = "st,sta350"; | ||
| reg = <0x1c>; | ||
| reset-gpios = <&gpio1 19 0>; | ||
| power-down-gpios = <&gpio1 16 0>; | ||
| st,output-conf = <0x3>; // set output to 2-channel | ||
| // (full-bridge) power, | ||
| // 2-channel data-out | ||
| st,ch1-output-mapping = <0>; // set channel 1 output ch 1 | ||
| st,ch2-output-mapping = <0>; // set channel 2 output ch 1 | ||
| st,ch3-output-mapping = <0>; // set channel 3 output ch 1 | ||
| st,max-power-correction; // enables power bridge | ||
| // correction for THD reduction | ||
| // near maximum power output | ||
| st,invalid-input-detect-mute; // mute if no valid digital | ||
| // audio signal is provided. | ||
| }; |
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * Platform data for ST STA350 ASoC codec driver. | ||
| * | ||
| * Copyright: 2014 Raumfeld GmbH | ||
| * Author: Sven Brandau <info@brandau.biz> | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify it | ||
| * under the terms of the GNU General Public License as published by the | ||
| * Free Software Foundation; either version 2 of the License, or (at your | ||
| * option) any later version. | ||
| */ | ||
| #ifndef __LINUX_SND__STA350_H | ||
| #define __LINUX_SND__STA350_H | ||
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| #define STA350_OCFG_2CH 0 | ||
| #define STA350_OCFG_2_1CH 1 | ||
| #define STA350_OCFG_1CH 3 | ||
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| #define STA350_OM_CH1 0 | ||
| #define STA350_OM_CH2 1 | ||
| #define STA350_OM_CH3 2 | ||
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| #define STA350_THERMAL_ADJUSTMENT_ENABLE 1 | ||
| #define STA350_THERMAL_RECOVERY_ENABLE 2 | ||
| #define STA350_FAULT_DETECT_RECOVERY_BYPASS 1 | ||
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| #define STA350_FFX_PM_DROP_COMP 0 | ||
| #define STA350_FFX_PM_TAPERED_COMP 1 | ||
| #define STA350_FFX_PM_FULL_POWER 2 | ||
| #define STA350_FFX_PM_VARIABLE_DROP_COMP 3 | ||
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| struct sta350_platform_data { | ||
| u8 output_conf; | ||
| u8 ch1_output_mapping; | ||
| u8 ch2_output_mapping; | ||
| u8 ch3_output_mapping; | ||
| u8 ffx_power_output_mode; | ||
| u8 drop_compensation_ns; | ||
| unsigned int thermal_warning_recovery:1; | ||
| unsigned int thermal_warning_adjustment:1; | ||
| unsigned int fault_detect_recovery:1; | ||
| unsigned int oc_warning_adjustment:1; | ||
| unsigned int max_power_use_mpcc:1; | ||
| unsigned int max_power_correction:1; | ||
| unsigned int am_reduction_mode:1; | ||
| unsigned int odd_pwm_speed_mode:1; | ||
| unsigned int distortion_compensation:1; | ||
| unsigned int invalid_input_detect_mute:1; | ||
| }; | ||
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| #endif /* __LINUX_SND__STA350_H */ |
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