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We have several new drivers, most of the time coming with their sub devices drivers: - Austria Microsystem's AS3711 - Nano River's viperboard - TI's TPS80031, AM335x TS/ADC, - Realtek's MMC/memstick card reader - Nokia's retu We also got some notable cleanups and improvements: - tps6586x got converted to IRQ domains. - tps65910 and tps65090 moved to the regmap IRQ API. - STMPE is now Device Tree aware. - A general twl6040 and twl-core cleanup, with moves to the regmap I/O and IRQ APIs and a conversion to the recently added PWM framework. - sta2x11 gained regmap support. Then the rest is mostly tiny cleanups and fixes, among which we have Mark's wm5xxx and wm8xxx patchset. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAABAgAGBQJQznPnAAoJEIqAPN1PVmxKuA8P/0nOJduXFM1c0Gy+DD5DnJnG cXzzeSTV8iO3a3sHIye43QPJ5V2YUR5uxLTUEOo/G7my/MoZ/azeNidkUD3qLVlm wVIq35lcS8dWTZaY7nlpBcWc6e39UB0sEueuJNxyhOv5lnMKdi2tAow5f4vIRQnd Q67/EbrgqdltcOpGmVuCdQcvphvWgy+K65jzbJG5zXs7hGX13Q+M5RnYhx76kc8f TDd0APZ71n5/RyISFSBSu2vfl2kES6o47aMgqqXMEHri6d3puAaXM0rFoMzXg/4G eBdxndN25H7rW7xvt9tuUod2rn1AO7tif5d7jal3Cfj61y3iqKY30yb3OzS9XQXH 9WZ2qDst11zvzQivxIkMGvfRXRfncNLWR4DrBSqVfSbYV2uQj2eS8C6ONwKVMXsQ 5tjNp91PFqN19sWQjIjSMcrNswxgpvdQ9mqFTyOGmISbqrpPSTi+MuO8r9+xTfUF PnzUX2nVOW/i9NcI7uotjzh8jiw6t8XMVHhkehiSYR9hzCb6MaPsFPN4jWq9XA2m 1htCHylNpHqHQ3Mup7Is6j0Li1ahdwfm4lbrgiVEA4t4Mqs5E/Ka+3V8laNAKylW PfCP/VmnJYzmgVTK/qobFNeKzRqR0i4WTL6T7oAxGL87Q4TJaqKpEkXWne8UXV+Q yIbN0fmWfCveCetM+vaf =F790 -----END PGP SIGNATURE----- Merge tag 'mfd-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6 Pull MFS update from Samuel Ortiz: "This is the MFD patch set for the 3.8 merge window. We have several new drivers, most of the time coming with their sub devices drivers: - Austria Microsystem's AS3711 - Nano River's viperboard - TI's TPS80031, AM335x TS/ADC, - Realtek's MMC/memstick card reader - Nokia's retu We also got some notable cleanups and improvements: - tps6586x got converted to IRQ domains. - tps65910 and tps65090 moved to the regmap IRQ API. - STMPE is now Device Tree aware. - A general twl6040 and twl-core cleanup, with moves to the regmap I/O and IRQ APIs and a conversion to the recently added PWM framework. - sta2x11 gained regmap support. Then the rest is mostly tiny cleanups and fixes, among which we have Mark's wm5xxx and wm8xxx patchset." Far amount of annoying but largely trivial conflicts. Many due to __devinit/exit removal, others due to one or two of the new drivers also having come in through another tree. * tag 'mfd-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (119 commits) mfd: tps6507x: Convert to devm_kzalloc mfd: stmpe: Update DT support for stmpe driver mfd: wm5102: Add readback of DSP status 3 register mfd: arizona: Log if we fail to create the primary IRQ domain mfd: tps80031: MFD_TPS80031 needs to select REGMAP_IRQ mfd: tps80031: Add terminating entry for tps80031_id_table mfd: sta2x11: Fix potential NULL pointer dereference in __sta2x11_mfd_mask() mfd: wm5102: Add tuning for revision B mfd: arizona: Defer patch initialistation until after first device boot mfd: tps65910: Fix wrong ack_base register mfd: tps65910: Remove unused data mfd: stmpe: Get rid of irq_invert_polarity mfd: ab8500-core: Fix invalid free of devm_ allocated data mfd: wm5102: Mark DSP memory regions as volatile mfd: wm5102: Correct default for LDO1_CONTROL_2 mfd: arizona: Register haptics devices mfd: wm8994: Make current device behaviour the default mfd: tps65090: MFD_TPS65090 needs to select REGMAP_IRQ mfd: Fix stmpe.c build when OF is not enabled mfd: jz4740-adc: Use devm_kzalloc ...
668 lines
15 KiB
C
668 lines
15 KiB
C
/*
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* Batttery Driver for Dialog DA9052 PMICs
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*
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* Copyright(c) 2011 Dialog Semiconductor Ltd.
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*
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* Author: David Dajun Chen <dchen@diasemi.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#include <linux/delay.h>
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#include <linux/freezer.h>
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#include <linux/fs.h>
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#include <linux/jiffies.h>
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#include <linux/module.h>
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#include <linux/timer.h>
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#include <linux/uaccess.h>
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#include <linux/platform_device.h>
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#include <linux/power_supply.h>
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#include <linux/mfd/da9052/da9052.h>
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#include <linux/mfd/da9052/pdata.h>
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#include <linux/mfd/da9052/reg.h>
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/* STATIC CONFIGURATION */
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#define DA9052_BAT_CUTOFF_VOLT 2800
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#define DA9052_BAT_TSH 62000
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#define DA9052_BAT_LOW_CAP 4
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#define DA9052_AVG_SZ 4
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#define DA9052_VC_TBL_SZ 68
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#define DA9052_VC_TBL_REF_SZ 3
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#define DA9052_ISET_USB_MASK 0x0F
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#define DA9052_CHG_USB_ILIM_MASK 0x40
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#define DA9052_CHG_LIM_COLS 16
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#define DA9052_MEAN(x, y) ((x + y) / 2)
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enum charger_type_enum {
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DA9052_NOCHARGER = 1,
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DA9052_CHARGER,
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};
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static const u16 da9052_chg_current_lim[2][DA9052_CHG_LIM_COLS] = {
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{70, 80, 90, 100, 110, 120, 400, 450,
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500, 550, 600, 650, 700, 900, 1100, 1300},
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{80, 90, 100, 110, 120, 400, 450, 500,
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550, 600, 800, 1000, 1200, 1400, 1600, 1800},
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};
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static const u16 vc_tbl_ref[3] = {10, 25, 40};
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/* Lookup table for voltage vs capacity */
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static u32 const vc_tbl[3][68][2] = {
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/* For temperature 10 degree Celsius */
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{
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{4082, 100}, {4036, 98},
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{4020, 96}, {4008, 95},
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{3997, 93}, {3983, 91},
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{3964, 90}, {3943, 88},
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{3926, 87}, {3912, 85},
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{3900, 84}, {3890, 82},
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{3881, 80}, {3873, 79},
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{3865, 77}, {3857, 76},
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{3848, 74}, {3839, 73},
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{3829, 71}, {3820, 70},
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{3811, 68}, {3802, 67},
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{3794, 65}, {3785, 64},
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{3778, 62}, {3770, 61},
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{3763, 59}, {3756, 58},
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{3750, 56}, {3744, 55},
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{3738, 53}, {3732, 52},
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{3727, 50}, {3722, 49},
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{3717, 47}, {3712, 46},
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{3708, 44}, {3703, 43},
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{3700, 41}, {3696, 40},
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{3693, 38}, {3691, 37},
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{3688, 35}, {3686, 34},
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{3683, 32}, {3681, 31},
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{3678, 29}, {3675, 28},
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{3672, 26}, {3669, 25},
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{3665, 23}, {3661, 22},
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{3656, 21}, {3651, 19},
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{3645, 18}, {3639, 16},
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{3631, 15}, {3622, 13},
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{3611, 12}, {3600, 10},
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{3587, 9}, {3572, 7},
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{3548, 6}, {3503, 5},
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{3420, 3}, {3268, 2},
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{2992, 1}, {2746, 0}
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},
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/* For temperature 25 degree Celsius */
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{
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{4102, 100}, {4065, 98},
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{4048, 96}, {4034, 95},
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{4021, 93}, {4011, 92},
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{4001, 90}, {3986, 88},
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{3968, 87}, {3952, 85},
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{3938, 84}, {3926, 82},
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{3916, 81}, {3908, 79},
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{3900, 77}, {3892, 76},
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{3883, 74}, {3874, 73},
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{3864, 71}, {3855, 70},
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{3846, 68}, {3836, 67},
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{3827, 65}, {3819, 64},
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{3810, 62}, {3801, 61},
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{3793, 59}, {3786, 58},
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{3778, 56}, {3772, 55},
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{3765, 53}, {3759, 52},
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{3754, 50}, {3748, 49},
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{3743, 47}, {3738, 46},
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{3733, 44}, {3728, 43},
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{3724, 41}, {3720, 40},
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{3716, 38}, {3712, 37},
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{3709, 35}, {3706, 34},
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{3703, 33}, {3701, 31},
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{3698, 30}, {3696, 28},
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{3693, 27}, {3690, 25},
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{3687, 24}, {3683, 22},
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{3680, 21}, {3675, 19},
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{3671, 18}, {3666, 17},
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{3660, 15}, {3654, 14},
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{3647, 12}, {3639, 11},
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{3630, 9}, {3621, 8},
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{3613, 6}, {3606, 5},
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{3597, 4}, {3582, 2},
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{3546, 1}, {2747, 0}
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},
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/* For temperature 40 degree Celsius */
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{
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{4114, 100}, {4081, 98},
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{4065, 96}, {4050, 95},
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{4036, 93}, {4024, 92},
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{4013, 90}, {4002, 88},
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{3990, 87}, {3976, 85},
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{3962, 84}, {3950, 82},
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{3939, 81}, {3930, 79},
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{3921, 77}, {3912, 76},
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{3902, 74}, {3893, 73},
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{3883, 71}, {3874, 70},
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{3865, 68}, {3856, 67},
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{3847, 65}, {3838, 64},
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{3829, 62}, {3820, 61},
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{3812, 59}, {3803, 58},
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{3795, 56}, {3787, 55},
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{3780, 53}, {3773, 52},
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{3767, 50}, {3761, 49},
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{3756, 47}, {3751, 46},
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{3746, 44}, {3741, 43},
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{3736, 41}, {3732, 40},
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{3728, 38}, {3724, 37},
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{3720, 35}, {3716, 34},
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{3713, 33}, {3710, 31},
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{3707, 30}, {3704, 28},
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{3701, 27}, {3698, 25},
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{3695, 24}, {3691, 22},
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{3686, 21}, {3681, 19},
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{3676, 18}, {3671, 17},
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{3666, 15}, {3661, 14},
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{3655, 12}, {3648, 11},
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{3640, 9}, {3632, 8},
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{3622, 6}, {3616, 5},
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{3611, 4}, {3604, 2},
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{3594, 1}, {2747, 0}
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}
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};
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struct da9052_battery {
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struct da9052 *da9052;
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struct power_supply psy;
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struct notifier_block nb;
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int charger_type;
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int status;
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int health;
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};
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static inline int volt_reg_to_mV(int value)
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{
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return ((value * 1000) / 512) + 2500;
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}
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static inline int ichg_reg_to_mA(int value)
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{
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return (value * 3900) / 1000;
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}
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static int da9052_read_chgend_current(struct da9052_battery *bat,
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int *current_mA)
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{
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int ret;
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if (bat->status == POWER_SUPPLY_STATUS_DISCHARGING)
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return -EINVAL;
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ret = da9052_reg_read(bat->da9052, DA9052_ICHG_END_REG);
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if (ret < 0)
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return ret;
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*current_mA = ichg_reg_to_mA(ret & DA9052_ICHGEND_ICHGEND);
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return 0;
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}
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static int da9052_read_chg_current(struct da9052_battery *bat, int *current_mA)
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{
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int ret;
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if (bat->status == POWER_SUPPLY_STATUS_DISCHARGING)
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return -EINVAL;
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ret = da9052_reg_read(bat->da9052, DA9052_ICHG_AV_REG);
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if (ret < 0)
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return ret;
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*current_mA = ichg_reg_to_mA(ret & DA9052_ICHGAV_ICHGAV);
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return 0;
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}
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static int da9052_bat_check_status(struct da9052_battery *bat, int *status)
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{
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u8 v[2] = {0, 0};
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u8 bat_status;
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u8 chg_end;
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int ret;
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int chg_current;
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int chg_end_current;
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bool dcinsel;
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bool dcindet;
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bool vbussel;
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bool vbusdet;
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bool dc;
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bool vbus;
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ret = da9052_group_read(bat->da9052, DA9052_STATUS_A_REG, 2, v);
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if (ret < 0)
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return ret;
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bat_status = v[0];
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chg_end = v[1];
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dcinsel = bat_status & DA9052_STATUSA_DCINSEL;
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dcindet = bat_status & DA9052_STATUSA_DCINDET;
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vbussel = bat_status & DA9052_STATUSA_VBUSSEL;
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vbusdet = bat_status & DA9052_STATUSA_VBUSDET;
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dc = dcinsel && dcindet;
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vbus = vbussel && vbusdet;
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/* Preference to WALL(DCIN) charger unit */
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if (dc || vbus) {
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bat->charger_type = DA9052_CHARGER;
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/* If charging end flag is set and Charging current is greater
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* than charging end limit then battery is charging
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*/
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if ((chg_end & DA9052_STATUSB_CHGEND) != 0) {
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ret = da9052_read_chg_current(bat, &chg_current);
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if (ret < 0)
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return ret;
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ret = da9052_read_chgend_current(bat, &chg_end_current);
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if (ret < 0)
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return ret;
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if (chg_current >= chg_end_current)
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bat->status = POWER_SUPPLY_STATUS_CHARGING;
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else
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bat->status = POWER_SUPPLY_STATUS_NOT_CHARGING;
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} else {
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/* If Charging end flag is cleared then battery is
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* charging
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*/
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bat->status = POWER_SUPPLY_STATUS_CHARGING;
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}
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} else if (dcindet || vbusdet) {
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bat->charger_type = DA9052_CHARGER;
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bat->status = POWER_SUPPLY_STATUS_NOT_CHARGING;
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} else {
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bat->charger_type = DA9052_NOCHARGER;
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bat->status = POWER_SUPPLY_STATUS_DISCHARGING;
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}
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if (status != NULL)
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*status = bat->status;
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return 0;
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}
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static int da9052_bat_read_volt(struct da9052_battery *bat, int *volt_mV)
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{
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int volt;
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volt = da9052_adc_manual_read(bat->da9052, DA9052_ADC_MAN_MUXSEL_VBAT);
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if (volt < 0)
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return volt;
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*volt_mV = volt_reg_to_mV(volt);
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return 0;
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}
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static int da9052_bat_check_presence(struct da9052_battery *bat, int *illegal)
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{
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int bat_temp;
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bat_temp = da9052_adc_read_temp(bat->da9052);
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if (bat_temp < 0)
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return bat_temp;
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if (bat_temp > DA9052_BAT_TSH)
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*illegal = 1;
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else
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*illegal = 0;
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return 0;
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}
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static int da9052_bat_interpolate(int vbat_lower, int vbat_upper,
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int level_lower, int level_upper,
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int bat_voltage)
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{
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int tmp;
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tmp = ((level_upper - level_lower) * 1000) / (vbat_upper - vbat_lower);
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tmp = level_lower + (((bat_voltage - vbat_lower) * tmp) / 1000);
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return tmp;
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}
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static unsigned char da9052_determine_vc_tbl_index(unsigned char adc_temp)
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{
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int i;
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if (adc_temp <= vc_tbl_ref[0])
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return 0;
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if (adc_temp > vc_tbl_ref[DA9052_VC_TBL_REF_SZ - 1])
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return DA9052_VC_TBL_REF_SZ - 1;
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for (i = 0; i < DA9052_VC_TBL_REF_SZ; i++) {
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if ((adc_temp > vc_tbl_ref[i]) &&
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(adc_temp <= DA9052_MEAN(vc_tbl_ref[i], vc_tbl_ref[i + 1])))
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return i;
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if ((adc_temp > DA9052_MEAN(vc_tbl_ref[i], vc_tbl_ref[i + 1]))
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&& (adc_temp <= vc_tbl_ref[i]))
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return i + 1;
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}
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/*
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* For some reason authors of the driver didn't presume that we can
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* end up here. It might be OK, but might be not, no one knows for
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* sure. Go check your battery, is it on fire?
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*/
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WARN_ON(1);
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return 0;
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}
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static int da9052_bat_read_capacity(struct da9052_battery *bat, int *capacity)
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{
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int adc_temp;
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int bat_voltage;
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int vbat_lower;
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int vbat_upper;
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int level_upper;
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int level_lower;
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int ret;
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int flag;
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int i = 0;
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int j;
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ret = da9052_bat_read_volt(bat, &bat_voltage);
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if (ret < 0)
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return ret;
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adc_temp = da9052_adc_read_temp(bat->da9052);
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if (adc_temp < 0)
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return adc_temp;
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i = da9052_determine_vc_tbl_index(adc_temp);
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if (bat_voltage >= vc_tbl[i][0][0]) {
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*capacity = 100;
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return 0;
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}
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if (bat_voltage <= vc_tbl[i][DA9052_VC_TBL_SZ - 1][0]) {
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*capacity = 0;
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return 0;
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}
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flag = 0;
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for (j = 0; j < (DA9052_VC_TBL_SZ-1); j++) {
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if ((bat_voltage <= vc_tbl[i][j][0]) &&
|
|
(bat_voltage >= vc_tbl[i][j + 1][0])) {
|
|
vbat_upper = vc_tbl[i][j][0];
|
|
vbat_lower = vc_tbl[i][j + 1][0];
|
|
level_upper = vc_tbl[i][j][1];
|
|
level_lower = vc_tbl[i][j + 1][1];
|
|
flag = 1;
|
|
break;
|
|
}
|
|
}
|
|
if (!flag)
|
|
return -EIO;
|
|
|
|
*capacity = da9052_bat_interpolate(vbat_lower, vbat_upper, level_lower,
|
|
level_upper, bat_voltage);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int da9052_bat_check_health(struct da9052_battery *bat, int *health)
|
|
{
|
|
int ret;
|
|
int bat_illegal;
|
|
int capacity;
|
|
|
|
ret = da9052_bat_check_presence(bat, &bat_illegal);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (bat_illegal) {
|
|
bat->health = POWER_SUPPLY_HEALTH_UNKNOWN;
|
|
return 0;
|
|
}
|
|
|
|
if (bat->health != POWER_SUPPLY_HEALTH_OVERHEAT) {
|
|
ret = da9052_bat_read_capacity(bat, &capacity);
|
|
if (ret < 0)
|
|
return ret;
|
|
if (capacity < DA9052_BAT_LOW_CAP)
|
|
bat->health = POWER_SUPPLY_HEALTH_DEAD;
|
|
else
|
|
bat->health = POWER_SUPPLY_HEALTH_GOOD;
|
|
}
|
|
|
|
*health = bat->health;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static irqreturn_t da9052_bat_irq(int irq, void *data)
|
|
{
|
|
struct da9052_battery *bat = data;
|
|
int virq;
|
|
|
|
virq = regmap_irq_get_virq(bat->da9052->irq_data, irq);
|
|
irq -= virq;
|
|
|
|
if (irq == DA9052_IRQ_CHGEND)
|
|
bat->status = POWER_SUPPLY_STATUS_FULL;
|
|
else
|
|
da9052_bat_check_status(bat, NULL);
|
|
|
|
if (irq == DA9052_IRQ_CHGEND || irq == DA9052_IRQ_DCIN ||
|
|
irq == DA9052_IRQ_VBUS || irq == DA9052_IRQ_TBAT) {
|
|
power_supply_changed(&bat->psy);
|
|
}
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int da9052_USB_current_notifier(struct notifier_block *nb,
|
|
unsigned long events, void *data)
|
|
{
|
|
u8 row;
|
|
u8 col;
|
|
int *current_mA = data;
|
|
int ret;
|
|
struct da9052_battery *bat = container_of(nb, struct da9052_battery,
|
|
nb);
|
|
|
|
if (bat->status == POWER_SUPPLY_STATUS_DISCHARGING)
|
|
return -EPERM;
|
|
|
|
ret = da9052_reg_read(bat->da9052, DA9052_CHGBUCK_REG);
|
|
if (ret & DA9052_CHG_USB_ILIM_MASK)
|
|
return -EPERM;
|
|
|
|
if (bat->da9052->chip_id == DA9052)
|
|
row = 0;
|
|
else
|
|
row = 1;
|
|
|
|
if (*current_mA < da9052_chg_current_lim[row][0] ||
|
|
*current_mA > da9052_chg_current_lim[row][DA9052_CHG_LIM_COLS - 1])
|
|
return -EINVAL;
|
|
|
|
for (col = 0; col <= DA9052_CHG_LIM_COLS - 1 ; col++) {
|
|
if (*current_mA <= da9052_chg_current_lim[row][col])
|
|
break;
|
|
}
|
|
|
|
return da9052_reg_update(bat->da9052, DA9052_ISET_REG,
|
|
DA9052_ISET_USB_MASK, col);
|
|
}
|
|
|
|
static int da9052_bat_get_property(struct power_supply *psy,
|
|
enum power_supply_property psp,
|
|
union power_supply_propval *val)
|
|
{
|
|
int ret;
|
|
int illegal;
|
|
struct da9052_battery *bat = container_of(psy, struct da9052_battery,
|
|
psy);
|
|
|
|
ret = da9052_bat_check_presence(bat, &illegal);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (illegal && psp != POWER_SUPPLY_PROP_PRESENT)
|
|
return -ENODEV;
|
|
|
|
switch (psp) {
|
|
case POWER_SUPPLY_PROP_STATUS:
|
|
ret = da9052_bat_check_status(bat, &val->intval);
|
|
break;
|
|
case POWER_SUPPLY_PROP_ONLINE:
|
|
val->intval =
|
|
(bat->charger_type == DA9052_NOCHARGER) ? 0 : 1;
|
|
break;
|
|
case POWER_SUPPLY_PROP_PRESENT:
|
|
ret = da9052_bat_check_presence(bat, &val->intval);
|
|
break;
|
|
case POWER_SUPPLY_PROP_HEALTH:
|
|
ret = da9052_bat_check_health(bat, &val->intval);
|
|
break;
|
|
case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
|
|
val->intval = DA9052_BAT_CUTOFF_VOLT * 1000;
|
|
break;
|
|
case POWER_SUPPLY_PROP_VOLTAGE_AVG:
|
|
ret = da9052_bat_read_volt(bat, &val->intval);
|
|
break;
|
|
case POWER_SUPPLY_PROP_CURRENT_AVG:
|
|
ret = da9052_read_chg_current(bat, &val->intval);
|
|
break;
|
|
case POWER_SUPPLY_PROP_CAPACITY:
|
|
ret = da9052_bat_read_capacity(bat, &val->intval);
|
|
break;
|
|
case POWER_SUPPLY_PROP_TEMP:
|
|
val->intval = da9052_adc_read_temp(bat->da9052);
|
|
ret = val->intval;
|
|
break;
|
|
case POWER_SUPPLY_PROP_TECHNOLOGY:
|
|
val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static enum power_supply_property da9052_bat_props[] = {
|
|
POWER_SUPPLY_PROP_STATUS,
|
|
POWER_SUPPLY_PROP_ONLINE,
|
|
POWER_SUPPLY_PROP_PRESENT,
|
|
POWER_SUPPLY_PROP_HEALTH,
|
|
POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
|
|
POWER_SUPPLY_PROP_VOLTAGE_AVG,
|
|
POWER_SUPPLY_PROP_CURRENT_AVG,
|
|
POWER_SUPPLY_PROP_CAPACITY,
|
|
POWER_SUPPLY_PROP_TEMP,
|
|
POWER_SUPPLY_PROP_TECHNOLOGY,
|
|
};
|
|
|
|
static struct power_supply template_battery = {
|
|
.name = "da9052-bat",
|
|
.type = POWER_SUPPLY_TYPE_BATTERY,
|
|
.properties = da9052_bat_props,
|
|
.num_properties = ARRAY_SIZE(da9052_bat_props),
|
|
.get_property = da9052_bat_get_property,
|
|
};
|
|
|
|
static char *da9052_bat_irqs[] = {
|
|
"BATT TEMP",
|
|
"DCIN DET",
|
|
"DCIN REM",
|
|
"VBUS DET",
|
|
"VBUS REM",
|
|
"CHG END",
|
|
};
|
|
|
|
static int da9052_bat_irq_bits[] = {
|
|
DA9052_IRQ_TBAT,
|
|
DA9052_IRQ_DCIN,
|
|
DA9052_IRQ_DCINREM,
|
|
DA9052_IRQ_VBUS,
|
|
DA9052_IRQ_VBUSREM,
|
|
DA9052_IRQ_CHGEND,
|
|
};
|
|
|
|
static s32 da9052_bat_probe(struct platform_device *pdev)
|
|
{
|
|
struct da9052_pdata *pdata;
|
|
struct da9052_battery *bat;
|
|
int ret;
|
|
int i;
|
|
|
|
bat = kzalloc(sizeof(struct da9052_battery), GFP_KERNEL);
|
|
if (!bat)
|
|
return -ENOMEM;
|
|
|
|
bat->da9052 = dev_get_drvdata(pdev->dev.parent);
|
|
bat->psy = template_battery;
|
|
bat->charger_type = DA9052_NOCHARGER;
|
|
bat->status = POWER_SUPPLY_STATUS_UNKNOWN;
|
|
bat->health = POWER_SUPPLY_HEALTH_UNKNOWN;
|
|
bat->nb.notifier_call = da9052_USB_current_notifier;
|
|
|
|
pdata = bat->da9052->dev->platform_data;
|
|
if (pdata != NULL && pdata->use_for_apm)
|
|
bat->psy.use_for_apm = pdata->use_for_apm;
|
|
else
|
|
bat->psy.use_for_apm = 1;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(da9052_bat_irqs); i++) {
|
|
ret = da9052_request_irq(bat->da9052,
|
|
da9052_bat_irq_bits[i], da9052_bat_irqs[i],
|
|
da9052_bat_irq, bat);
|
|
|
|
if (ret != 0) {
|
|
dev_err(bat->da9052->dev,
|
|
"DA9052 failed to request %s IRQ: %d\n",
|
|
da9052_bat_irqs[i], ret);
|
|
goto err;
|
|
}
|
|
}
|
|
|
|
ret = power_supply_register(&pdev->dev, &bat->psy);
|
|
if (ret)
|
|
goto err;
|
|
|
|
platform_set_drvdata(pdev, bat);
|
|
return 0;
|
|
|
|
err:
|
|
while (--i >= 0)
|
|
da9052_free_irq(bat->da9052, da9052_bat_irq_bits[i], bat);
|
|
|
|
kfree(bat);
|
|
return ret;
|
|
}
|
|
static int da9052_bat_remove(struct platform_device *pdev)
|
|
{
|
|
int i;
|
|
struct da9052_battery *bat = platform_get_drvdata(pdev);
|
|
|
|
for (i = 0; i < ARRAY_SIZE(da9052_bat_irqs); i++)
|
|
da9052_free_irq(bat->da9052, da9052_bat_irq_bits[i], bat);
|
|
|
|
power_supply_unregister(&bat->psy);
|
|
kfree(bat);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver da9052_bat_driver = {
|
|
.probe = da9052_bat_probe,
|
|
.remove = da9052_bat_remove,
|
|
.driver = {
|
|
.name = "da9052-bat",
|
|
.owner = THIS_MODULE,
|
|
},
|
|
};
|
|
module_platform_driver(da9052_bat_driver);
|
|
|
|
MODULE_DESCRIPTION("DA9052 BAT Device Driver");
|
|
MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("platform:da9052-bat");
|