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On the chip the IMON signal is a full 24-bits however normally only some of the bits will be sent over the bus. The chip provides a field to select which bits of the IMON will be sent back, this is the only feedback signal that has this feature. Add an additional entry to the cirrus,imon device tree property to allow the IMON scale parameter to be passed. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Brian Austin <brian.austin@cirrus.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Mark Brown <broonie@kernel.org>
109 lines
2.3 KiB
C
109 lines
2.3 KiB
C
/*
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* linux/sound/cs35l35.h -- Platform data for CS35l35
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*
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* Copyright (c) 2016 Cirrus Logic Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __CS35L35_H
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#define __CS35L35_H
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struct classh_cfg {
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/*
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* Class H Algorithm Control Variables
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* You can either have it done
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* automatically or you can adjust
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* these variables for tuning
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*
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* if you do not enable the internal algorithm
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* you will get a set of mixer controls for
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* Class H tuning
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*
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* Section 4.3 of the datasheet
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*/
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bool classh_bst_override;
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bool classh_algo_enable;
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int classh_bst_max_limit;
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int classh_mem_depth;
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int classh_release_rate;
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int classh_headroom;
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int classh_wk_fet_disable;
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int classh_wk_fet_delay;
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int classh_wk_fet_thld;
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int classh_vpch_auto;
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int classh_vpch_rate;
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int classh_vpch_man;
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};
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struct monitor_cfg {
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/*
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* Signal Monitor Data
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* highly configurable signal monitoring
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* data positioning and different types of
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* monitoring data.
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*
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* Section 4.8.2 - 4.8.4 of the datasheet
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*/
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bool is_present;
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bool imon_specs;
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bool vmon_specs;
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bool vpmon_specs;
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bool vbstmon_specs;
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bool vpbrstat_specs;
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bool zerofill_specs;
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u8 imon_dpth;
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u8 imon_loc;
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u8 imon_frm;
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u8 imon_scale;
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u8 vmon_dpth;
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u8 vmon_loc;
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u8 vmon_frm;
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u8 vpmon_dpth;
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u8 vpmon_loc;
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u8 vpmon_frm;
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u8 vbstmon_dpth;
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u8 vbstmon_loc;
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u8 vbstmon_frm;
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u8 vpbrstat_dpth;
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u8 vpbrstat_loc;
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u8 vpbrstat_frm;
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u8 zerofill_dpth;
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u8 zerofill_loc;
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u8 zerofill_frm;
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};
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struct cs35l35_platform_data {
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/* Stereo (2 Device) */
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bool stereo;
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/* serial port drive strength */
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int sp_drv_str;
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/* serial port drive in unused slots */
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int sp_drv_unused;
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/* Boost Power Down with FET */
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bool bst_pdn_fet_on;
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/* Boost Voltage : used if ClassH Algo Enabled */
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int bst_vctl;
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/* Boost Converter Peak Current CTRL */
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int bst_ipk;
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/* Amp Gain Zero Cross */
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bool gain_zc;
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/* Audio Input Location */
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int aud_channel;
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/* Advisory Input Location */
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int adv_channel;
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/* Shared Boost for stereo */
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bool shared_bst;
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/* Specifies this amp is using an external boost supply */
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bool ext_bst;
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/* ClassH Algorithm */
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struct classh_cfg classh_algo;
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/* Monitor Config */
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struct monitor_cfg mon_cfg;
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};
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#endif /* __CS35L35_H */
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