2d2a2c595a
Calibration for HK/XOADC is done once at init by msm_adc before the first ADC reading is processed. Calibration performed for every ADC read is expensive and not recommended. Remove support to request calibration by ADC clients. Add stubs for pmic8058 xoadc functions to fix featurization Change-Id: I7f0e165bddaa49c5daf33df5ed77428ccc1434c5 Signed-off-by: Vijayakumar Muthuvel Manickam <vmuthuve@codeaurora.org>
122 lines
3.3 KiB
C
122 lines
3.3 KiB
C
/* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
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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 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Qualcomm XOADC Driver header file
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*/
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#ifndef _XOADC_H
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#define _XOADC_H_
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/workqueue.h>
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struct xoadc_conv_state {
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struct adc_conv_slot *context;
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struct list_head slots;
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struct mutex list_lock;
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};
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#define CHANNEL_VCOIN 0
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#define CHANNEL_VBAT 1
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#define CHANNEL_VCHG 2
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#define CHANNEL_CHG_MONITOR 3
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#define CHANNEL_VPH_PWR 4
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#define CHANNEL_MPP5 5
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#define CHANNEL_MPP6 6
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#define CHANNEL_MPP7 7
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#define CHANNEL_MPP8 8
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#define CHANNEL_MPP9 9
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#define CHANNEL_USB_VBUS 0Xa
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#define CHANNEL_DIE_TEMP 0Xb
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#define CHANNEL_INTERNAL 0xc
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#define CHANNEL_125V 0xd
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#define CHANNEL_INTERNAL_2 0Xe
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#define CHANNEL_MUXOFF 0xf
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#define XOADC_MPP_3 0x2
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#define XOADC_MPP_4 0X3
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#define XOADC_MPP_5 0x4
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#define XOADC_MPP_7 0x6
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#define XOADC_MPP_8 0x7
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#define XOADC_MPP_10 0X9
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#define XOADC_PMIC_0 0x0
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#define CHANNEL_ADC_625_MV 625
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struct xoadc_platform_data {
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struct adc_properties *xoadc_prop;
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u32 (*xoadc_setup) (void);
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void (*xoadc_shutdown) (void);
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void (*xoadc_mpp_config) (void);
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int (*xoadc_vreg_set) (int);
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int (*xoadc_vreg_setup) (void);
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void (*xoadc_vreg_shutdown) (void);
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u32 xoadc_num;
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u32 xoadc_wakeup;
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};
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#ifdef CONFIG_PMIC8058_XOADC
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int32_t pm8058_xoadc_read_adc_code(uint32_t adc_instance, int32_t *data);
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int32_t pm8058_xoadc_select_chan_and_start_conv(uint32_t adc_instance,
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struct adc_conv_slot *slot);
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void pm8058_xoadc_slot_request(uint32_t adc_instance,
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struct adc_conv_slot **slot);
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void pm8058_xoadc_restore_slot(uint32_t adc_instance,
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struct adc_conv_slot *slot);
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struct adc_properties *pm8058_xoadc_get_properties(uint32_t dev_instance);
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int32_t pm8058_xoadc_calibrate(uint32_t dev_instance,
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struct adc_conv_slot *slot, int * calib_status);
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int32_t pm8058_xoadc_registered(void);
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int32_t pm8058_xoadc_calib_device(uint32_t adc_instance);
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#else
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static inline int32_t pm8058_xoadc_read_adc_code(uint32_t adc_instance,
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int32_t *data)
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{ return -ENXIO; }
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static inline int32_t pm8058_xoadc_select_chan_and_start_conv(
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uint32_t adc_instance, struct adc_conv_slot *slot)
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{ return -ENXIO; }
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static inline void pm8058_xoadc_slot_request(uint32_t adc_instance,
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struct adc_conv_slot **slot)
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{ return; }
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static inline void pm8058_xoadc_restore_slot(uint32_t adc_instance,
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struct adc_conv_slot *slot)
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{ return; }
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static inline struct adc_properties *pm8058_xoadc_get_properties(
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uint32_t dev_instance)
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{ return NULL; }
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static inline int32_t pm8058_xoadc_calibrate(uint32_t dev_instance,
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struct adc_conv_slot *slot, int *calib_status)
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{ return -ENXIO; }
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static inline int32_t pm8058_xoadc_registered(void)
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{ return -ENXIO; }
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static inline int32_t pm8058_xoadc_calib_device(uint32_t adc_instance)
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{ return -ENXIO; }
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#endif
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#endif
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