From patchwork Fri Jan 11 13:13:02 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lee Jones X-Patchwork-Id: 13987 Return-Path: X-Original-To: patchwork@peony.canonical.com Delivered-To: patchwork@peony.canonical.com Received: from fiordland.canonical.com (fiordland.canonical.com [91.189.94.145]) by peony.canonical.com (Postfix) with ESMTP id 38C5F23E27 for ; Fri, 11 Jan 2013 13:13:50 +0000 (UTC) Received: from mail-vc0-f181.google.com (mail-vc0-f181.google.com [209.85.220.181]) by fiordland.canonical.com (Postfix) with ESMTP id A234AA18C70 for ; Fri, 11 Jan 2013 13:13:49 +0000 (UTC) Received: by mail-vc0-f181.google.com with SMTP id gb30so1414642vcb.12 for ; Fri, 11 Jan 2013 05:13:49 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:x-forwarded-to:x-forwarded-for:delivered-to:x-received :received-spf:x-received:from:to:cc:subject:date:message-id:x-mailer :in-reply-to:references:x-gm-message-state; bh=nri1dabEJoqGXN8YHP/6Aepxzp++E39q2R95rMTe2nI=; b=Uo46bmwrIigEIsoCgAwpzKNc+psQ0DSu5htgMheoB51jz7PTMVZlUpcXuNEjR0EcqF bDaiGr/DoYBDgJ2HHuGQiYsAQz01pwrev32optH+gB7+ZzU46Y9QQv8QGu5D0lZg1n2S GO4xCbIsMNv3ZfUmS3JuaFFBc90LfhEmMmC0StLP/A+sxBDBdyrWFK7qL2SoJ9IB80wI jERQQFU9yJA1Bm7YJoTd7lXhoAls/4o2hhhCSE18XWAmjf+SsGMQNLUs5ksTbo7TztAn TjysRaKUKKoo9ObIExZ81+un4ARuoSzZGCRdifku/g0IyynPxwE8Bxl0n6W6QNGMVX79 62TA== X-Received: by 10.58.247.132 with SMTP id ye4mr97414533vec.9.1357910029080; Fri, 11 Jan 2013 05:13:49 -0800 (PST) X-Forwarded-To: linaro-patchwork@canonical.com X-Forwarded-For: patch@linaro.org linaro-patchwork@canonical.com Delivered-To: patches@linaro.org Received: by 10.58.145.101 with SMTP id st5csp111251veb; Fri, 11 Jan 2013 05:13:47 -0800 (PST) X-Received: by 10.194.235.100 with SMTP id ul4mr121289705wjc.7.1357910027138; Fri, 11 Jan 2013 05:13:47 -0800 (PST) Received: from mail-we0-f174.google.com (mail-we0-f174.google.com [74.125.82.174]) by mx.google.com with ESMTPS id wo10si8691518wjb.10.2013.01.11.05.13.46 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 11 Jan 2013 05:13:47 -0800 (PST) Received-SPF: neutral (google.com: 74.125.82.174 is neither permitted nor denied by best guess record for domain of lee.jones@linaro.org) client-ip=74.125.82.174; Authentication-Results: mx.google.com; spf=neutral (google.com: 74.125.82.174 is neither permitted nor denied by best guess record for domain of lee.jones@linaro.org) smtp.mail=lee.jones@linaro.org Received: by mail-we0-f174.google.com with SMTP id x10so836098wey.5 for ; Fri, 11 Jan 2013 05:13:46 -0800 (PST) X-Received: by 10.194.238.226 with SMTP id vn2mr120216878wjc.23.1357910026633; Fri, 11 Jan 2013 05:13:46 -0800 (PST) Received: from localhost.localdomain (cpc1-aztw13-0-0-cust473.18-1.cable.virginmedia.com. [77.102.241.218]) by mx.google.com with ESMTPS id p2sm7204515wic.7.2013.01.11.05.13.44 (version=TLSv1.1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 11 Jan 2013 05:13:45 -0800 (PST) From: Lee Jones To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: arnd@arndb.de, linus.walleij@stericsson.com, cbouatmailru@gmail.com, Michel JAOUEN , Lee Jones , Rajkumar Kasirajan , Loic Pallardy Subject: [PATCH 14/18] power: pm2301: Add pm2301 charger Date: Fri, 11 Jan 2013 13:13:02 +0000 Message-Id: <1357909986-9262-15-git-send-email-lee.jones@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1357909986-9262-1-git-send-email-lee.jones@linaro.org> References: <1357909986-9262-1-git-send-email-lee.jones@linaro.org> X-Gm-Message-State: ALoCoQnvsER3CN/AVMTvowXb7ADMIhd+qK5GMu3HHHYMSSgwETfh39PLsh/SQXLsHh8TGqFtxcru From: Michel JAOUEN PM2301 AC charger driver based on 9540 platform. Signed-off-by: Lee Jones Signed-off-by: Rajkumar Kasirajan Signed-off-by: Loic Pallardy Reviewed-by: Michel JAOUEN Tested-by: Michel JAOUEN --- drivers/power/Kconfig | 15 + drivers/power/Makefile | 1 + drivers/power/ab8500_charger.c | 8 +- drivers/power/pm2301_charger.c | 1599 ++++++++++++++++++++++++++++++++++++++++ include/linux/pm2301_charger.h | 60 ++ 5 files changed, 1681 insertions(+), 2 deletions(-) create mode 100644 drivers/power/pm2301_charger.c create mode 100644 include/linux/pm2301_charger.h diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index 263499f..0830779 100644 --- a/drivers/power/Kconfig +++ b/drivers/power/Kconfig @@ -346,6 +346,21 @@ config AB8500_BM help Say Y to include support for AB8500 battery management. +config CHARGER_PM2301 + bool "PM2301 Battery Charger Driver" + depends on AB8500_BM + help + Say Y to include support for PM2301 charger driver. + +config PM2XXX_DEEP_DEBUG + bool "PM2XXX Deep Debug" + depends on DEEP_DEBUG && CHARGER_PM2301 + default n + help + Deep Debug interface provides an access to all registers. + It allows to read or write directly a register. + Say Y to include support for Deep Debug. + If unsure, say N. endif # POWER_SUPPLY source "drivers/power/avs/Kconfig" diff --git a/drivers/power/Makefile b/drivers/power/Makefile index 070c73d..8130786 100644 --- a/drivers/power/Makefile +++ b/drivers/power/Makefile @@ -46,6 +46,7 @@ obj-$(CONFIG_CHARGER_LP8727) += lp8727_charger.o obj-$(CONFIG_CHARGER_LP8788) += lp8788-charger.o obj-$(CONFIG_CHARGER_GPIO) += gpio-charger.o obj-$(CONFIG_CHARGER_MANAGER) += charger-manager.o +obj-$(CONFIG_CHARGER_PM2301) += pm2301_charger.o obj-$(CONFIG_CHARGER_MAX8997) += max8997_charger.o obj-$(CONFIG_CHARGER_MAX8998) += max8998_charger.o obj-$(CONFIG_CHARGER_BQ2415X) += bq2415x_charger.o diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c index ff18617..30193ea 100644 --- a/drivers/power/ab8500_charger.c +++ b/drivers/power/ab8500_charger.c @@ -2795,7 +2795,9 @@ static int __devexit ab8500_charger_remove(struct platform_device *pdev) flush_scheduled_work(); power_supply_unregister(&di->usb_chg.psy); +#if !defined(CONFIG_CHARGER_PM2301) power_supply_unregister(&di->ac_chg.psy); +#endif platform_set_drvdata(pdev, NULL); return 0; @@ -2954,14 +2956,14 @@ static int __devinit ab8500_charger_probe(struct platform_device *pdev) dev_err(di->dev, "failed to initialize ABB registers\n"); goto free_regulator; } - +#if !defined(CONFIG_CHARGER_PM2301) /* Register AC charger class */ ret = power_supply_register(di->dev, &di->ac_chg.psy); if (ret) { dev_err(di->dev, "failed to register AC charger\n"); goto free_regulator; } - +#endif /* Register USB charger class */ ret = power_supply_register(di->dev, &di->usb_chg.psy); if (ret) { @@ -3048,7 +3050,9 @@ put_usb_phy: free_usb: power_supply_unregister(&di->usb_chg.psy); free_ac: +#if !defined(CONFIG_CHARGER_PM2301) power_supply_unregister(&di->ac_chg.psy); +#endif free_regulator: regulator_put(di->regu); free_charger_wq: diff --git a/drivers/power/pm2301_charger.c b/drivers/power/pm2301_charger.c new file mode 100644 index 0000000..b579e4d --- /dev/null +++ b/drivers/power/pm2301_charger.c @@ -0,0 +1,1599 @@ +/* + * Power supply driver for ST Ericsson pm2xxx_charger charger + * + * Copyright 2012 ST Ericsson. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#ifdef CONFIG_PM2XXX_DEEP_DEBUG +#include +#include +#endif + +#define MAIN_WDOG_ENA 0x01 +#define MAIN_WDOG_KICK 0x02 +#define MAIN_WDOG_DIS 0x00 +#define CHARG_WD_KICK 0x01 +#define MAIN_CH_ENA 0x01 +#define MAIN_CH_NO_OVERSHOOT_ENA_N 0x02 +#define MAIN_CH_DET 0x01 +#define MAIN_CH_CV_ON 0x04 +#define OTP_ENABLE_WD 0x01 + +#define MAIN_CH_INPUT_CURR_SHIFT 4 + +#define LED_INDICATOR_PWM_ENA 0x01 +#define LED_INDICATOR_PWM_DIS 0x00 +#define LED_IND_CUR_5MA 0x04 +#define LED_INDICATOR_PWM_DUTY_252_256 0xBF + +/* HW failure constants */ +#define MAIN_CH_TH_PROT 0x02 +#define MAIN_CH_NOK 0x01 + +/* Watchdog timeout constant */ +#define WD_TIMER 0x30 /* 4min */ +#define WD_KICK_INTERVAL (60 * HZ) + +/* Lowest charger voltage is 3.39V -> 0x4E */ +#define LOW_VOLT_REG 0x4E + +#define PM2XXX_BATT_CTRL_REG1 0x00 +#define PM2XXX_BATT_CTRL_REG2 0x01 +#define PM2XXX_BATT_CTRL_REG3 0x02 +#define PM2XXX_BATT_CTRL_REG4 0x03 +#define PM2XXX_BATT_CTRL_REG5 0x04 +#define PM2XXX_BATT_CTRL_REG6 0x05 +#define PM2XXX_BATT_CTRL_REG7 0x06 +#define PM2XXX_BATT_CTRL_REG8 0x07 +#define PM2XXX_NTC_CTRL_REG1 0x08 +#define PM2XXX_NTC_CTRL_REG2 0x09 +#define PM2XXX_BATT_CTRL_REG9 0x0A +#define PM2XXX_BATT_STAT_REG1 0x0B +#define PM2XXX_INP_VOLT_VPWR2 0x11 +#define PM2XXX_INP_DROP_VPWR2 0x13 +#define PM2XXX_INP_VOLT_VPWR1 0x15 +#define PM2XXX_INP_DROP_VPWR1 0x17 +#define PM2XXX_INP_MODE_VPWR 0x18 +#define PM2XXX_BATT_WD_KICK 0x70 +#define PM2XXX_DEV_VER_STAT 0x0C +#define PM2XXX_THERM_WARN_CTRL_REG 0x20 +#define PM2XXX_BATT_DISC_REG 0x21 +#define PM2XXX_BATT_LOW_LEV_COMP_REG 0x22 +#define PM2XXX_BATT_LOW_LEV_VAL_REG 0x23 +#define PM2XXX_I2C_PAD_CTRL_REG 0x24 +#define PM2XXX_SW_CTRL_REG 0x26 +#define PM2XXX_LED_CTRL_REG 0x28 + +#define PM2XXX_REG_INT1 0x40 +#define PM2XXX_MASK_REG_INT1 0x50 +#define PM2XXX_SRCE_REG_INT1 0x60 +#define PM2XXX_REG_INT2 0x41 +#define PM2XXX_MASK_REG_INT2 0x51 +#define PM2XXX_SRCE_REG_INT2 0x61 +#define PM2XXX_REG_INT3 0x42 +#define PM2XXX_MASK_REG_INT3 0x52 +#define PM2XXX_SRCE_REG_INT3 0x62 +#define PM2XXX_REG_INT4 0x43 +#define PM2XXX_MASK_REG_INT4 0x53 +#define PM2XXX_SRCE_REG_INT4 0x63 +#define PM2XXX_REG_INT5 0x44 +#define PM2XXX_MASK_REG_INT5 0x54 +#define PM2XXX_SRCE_REG_INT5 0x64 +#define PM2XXX_REG_INT6 0x45 +#define PM2XXX_MASK_REG_INT6 0x55 +#define PM2XXX_SRCE_REG_INT6 0x65 + +#define VPWR_OVV 0x0 +#define VSYSTEM_OVV 0x1 + +/* control Reg 1 */ +#define PM2XXX_CH_RESUME_EN 0x1 +#define PM2XXX_CH_RESUME_DIS 0x0 + +/* control Reg 2 */ +#define PM2XXX_CH_AUTO_RESUME_EN 0X2 +#define PM2XXX_CH_AUTO_RESUME_DIS 0X0 +#define PM2XXX_CHARGER_ENA 0x4 +#define PM2XXX_CHARGER_DIS 0x0 + +/* control Reg 3 */ +#define PM2XXX_CH_WD_CC_PHASE_OFF 0x0 +#define PM2XXX_CH_WD_CC_PHASE_5MIN 0x1 +#define PM2XXX_CH_WD_CC_PHASE_10MIN 0x2 +#define PM2XXX_CH_WD_CC_PHASE_30MIN 0x3 +#define PM2XXX_CH_WD_CC_PHASE_60MIN 0x4 +#define PM2XXX_CH_WD_CC_PHASE_120MIN 0x5 +#define PM2XXX_CH_WD_CC_PHASE_240MIN 0x6 +#define PM2XXX_CH_WD_CC_PHASE_360MIN 0x7 + +#define PM2XXX_CH_WD_CV_PHASE_OFF (0x0<<3) +#define PM2XXX_CH_WD_CV_PHASE_5MIN (0x1<<3) +#define PM2XXX_CH_WD_CV_PHASE_10MIN (0x2<<3) +#define PM2XXX_CH_WD_CV_PHASE_30MIN (0x3<<3) +#define PM2XXX_CH_WD_CV_PHASE_60MIN (0x4<<3) +#define PM2XXX_CH_WD_CV_PHASE_120MIN (0x5<<3) +#define PM2XXX_CH_WD_CV_PHASE_240MIN (0x6<<3) +#define PM2XXX_CH_WD_CV_PHASE_360MIN (0x7<<3) + +/* control Reg 4 */ +#define PM2XXX_CH_WD_PRECH_PHASE_OFF 0x0 +#define PM2XXX_CH_WD_PRECH_PHASE_1MIN 0x1 +#define PM2XXX_CH_WD_PRECH_PHASE_5MIN 0x2 +#define PM2XXX_CH_WD_PRECH_PHASE_10MIN 0x3 +#define PM2XXX_CH_WD_PRECH_PHASE_30MIN 0x4 +#define PM2XXX_CH_WD_PRECH_PHASE_60MIN 0x5 +#define PM2XXX_CH_WD_PRECH_PHASE_120MIN 0x6 +#define PM2XXX_CH_WD_PRECH_PHASE_240MIN 0x7 + +/* control Reg 5 */ +#define PM2XXX_CH_WD_AUTO_TIMEOUT_NONE 0x0 +#define PM2XXX_CH_WD_AUTO_TIMEOUT_20MIN 0x1 + +/* control Reg 6 */ +#define PM2XXX_DIR_CH_CC_CURRENT_200MA 0x0 +#define PM2XXX_DIR_CH_CC_CURRENT_400MA 0x2 +#define PM2XXX_DIR_CH_CC_CURRENT_600MA 0x3 +#define PM2XXX_DIR_CH_CC_CURRENT_800MA 0x4 +#define PM2XXX_DIR_CH_CC_CURRENT_1000MA 0x5 +#define PM2XXX_DIR_CH_CC_CURRENT_1200MA 0x6 +#define PM2XXX_DIR_CH_CC_CURRENT_1400MA 0x7 +#define PM2XXX_DIR_CH_CC_CURRENT_1600MA 0x8 +#define PM2XXX_DIR_CH_CC_CURRENT_1800MA 0x9 +#define PM2XXX_DIR_CH_CC_CURRENT_2000MA 0xA +#define PM2XXX_DIR_CH_CC_CURRENT_2200MA 0xB +#define PM2XXX_DIR_CH_CC_CURRENT_2400MA 0xC +#define PM2XXX_DIR_CH_CC_CURRENT_2600MA 0xD +#define PM2XXX_DIR_CH_CC_CURRENT_2800MA 0xE +#define PM2XXX_DIR_CH_CC_CURRENT_3000MA 0xF + +#define PM2XXX_CH_PRECH_CURRENT_25MA (0x0<<4) +#define PM2XXX_CH_PRECH_CURRENT_50MA (0x1<<4) +#define PM2XXX_CH_PRECH_CURRENT_75MA (0x2<<4) +#define PM2XXX_CH_PRECH_CURRENT_100MA (0x3<<4) + +#define PM2XXX_CH_EOC_CURRENT_100MA (0x0<<6) +#define PM2XXX_CH_EOC_CURRENT_150MA (0x1<<6) +#define PM2XXX_CH_EOC_CURRENT_300MA (0x2<<6) +#define PM2XXX_CH_EOC_CURRENT_400MA (0x3<<6) + +/* control Reg 7 */ +#define PM2XXX_CH_PRECH_VOL_2_5 0x0 +#define PM2XXX_CH_PRECH_VOL_2_7 0x1 +#define PM2XXX_CH_PRECH_VOL_2_9 0x2 +#define PM2XXX_CH_PRECH_VOL_3_1 0x3 + +#define PM2XXX_CH_VRESUME_VOL_3_2 (0x0<<2) +#define PM2XXX_CH_VRESUME_VOL_3_4 (0x1<<2) +#define PM2XXX_CH_VRESUME_VOL_3_6 (0x2<<2) +#define PM2XXX_CH_VRESUME_VOL_3_8 (0x3<<2) + +/* control Reg 8 */ +#define PM2XXX_CH_VOLT_3_5 0x0 +#define PM2XXX_CH_VOLT_3_5225 0x1 +#define PM2XXX_CH_VOLT_3_6 0x4 +#define PM2XXX_CH_VOLT_3_7 0x8 +#define PM2XXX_CH_VOLT_4_0 0x14 +#define PM2XXX_CH_VOLT_4_175 0x1B +#define PM2XXX_CH_VOLT_4_2 0x1C +#define PM2XXX_CH_VOLT_4_275 0x1F +#define PM2XXX_CH_VOLT_4_3 0x20 + +/*NTC control register 1*/ +#define PM2XXX_BTEMP_HIGH_TH_45 0x0 +#define PM2XXX_BTEMP_HIGH_TH_50 0x1 +#define PM2XXX_BTEMP_HIGH_TH_55 0x2 +#define PM2XXX_BTEMP_HIGH_TH_60 0x3 +#define PM2XXX_BTEMP_HIGH_TH_65 0x4 + +#define PM2XXX_BTEMP_LOW_TH_N5 (0x0<<3) +#define PM2XXX_BTEMP_LOW_TH_0 (0x1<<3) +#define PM2XXX_BTEMP_LOW_TH_5 (0x2<<3) +#define PM2XXX_BTEMP_LOW_TH_10 (0x3<<3) + +/*NTC control register 2*/ +#define PM2XXX_NTC_BETA_COEFF_3477 0x0 +#define PM2XXX_NTC_BETA_COEFF_3964 0x1 + +#define PM2XXX_NTC_RES_10K (0x0<<2) +#define PM2XXX_NTC_RES_47K (0x1<<2) +#define PM2XXX_NTC_RES_100K (0x2<<2) +#define PM2XXX_NTC_RES_NO_NTC (0x3<<2) + +/* control Reg 9 */ +#define PM2XXX_CH_CC_MODEDROP_EN 1 +#define PM2XXX_CH_CC_MODEDROP_DIS 0 + +#define PM2XXX_CH_CC_REDUCED_CURRENT_100MA (0x0<<1) +#define PM2XXX_CH_CC_REDUCED_CURRENT_200MA (0x1<<1) +#define PM2XXX_CH_CC_REDUCED_CURRENT_400MA (0x2<<1) +#define PM2XXX_CH_CC_REDUCED_CURRENT_IDENT (0x3<<1) + +#define PM2XXX_CHARCHING_INFO_DIS (0<<3) +#define PM2XXX_CHARCHING_INFO_EN (1<<3) + +#define PM2XXX_CH_150MV_DROP_300MV (0<<4) +#define PM2XXX_CH_150MV_DROP_150MV (1<<4) + + +/* charger status register */ +#define PM2XXX_CHG_STATUS_OFF 0x0 +#define PM2XXX_CHG_STATUS_ON 0x1 +#define PM2XXX_CHG_STATUS_FULL 0x2 +#define PM2XXX_CHG_STATUS_ERR 0x3 +#define PM2XXX_CHG_STATUS_WAIT 0x4 +#define PM2XXX_CHG_STATUS_NOBAT 0x5 + +/* Input charger voltage VPWR2 */ +#define PM2XXX_VPWR2_OVV_6_0 0x0 +#define PM2XXX_VPWR2_OVV_6_3 0x1 +#define PM2XXX_VPWR2_OVV_10 0x2 +#define PM2XXX_VPWR2_OVV_NONE 0x3 + +/* Input charger voltage VPWR1 */ +#define PM2XXX_VPWR1_OVV_6_0 0x0 +#define PM2XXX_VPWR1_OVV_6_3 0x1 +#define PM2XXX_VPWR1_OVV_10 0x2 +#define PM2XXX_VPWR1_OVV_NONE 0x3 + +/* Battery low level comparator control register */ +#define PM2XXX_VBAT_LOW_MONITORING_DIS 0x0 +#define PM2XXX_VBAT_LOW_MONITORING_ENA 0x1 + +/* Battery low level value control register */ +#define PM2XXX_VBAT_LOW_LEVEL_2_3 0x0 +#define PM2XXX_VBAT_LOW_LEVEL_2_4 0x1 +#define PM2XXX_VBAT_LOW_LEVEL_2_5 0x2 +#define PM2XXX_VBAT_LOW_LEVEL_2_6 0x3 +#define PM2XXX_VBAT_LOW_LEVEL_2_7 0x4 +#define PM2XXX_VBAT_LOW_LEVEL_2_8 0x5 +#define PM2XXX_VBAT_LOW_LEVEL_2_9 0x6 +#define PM2XXX_VBAT_LOW_LEVEL_3_0 0x7 +#define PM2XXX_VBAT_LOW_LEVEL_3_1 0x8 +#define PM2XXX_VBAT_LOW_LEVEL_3_2 0x9 +#define PM2XXX_VBAT_LOW_LEVEL_3_3 0xA +#define PM2XXX_VBAT_LOW_LEVEL_3_4 0xB +#define PM2XXX_VBAT_LOW_LEVEL_3_5 0xC +#define PM2XXX_VBAT_LOW_LEVEL_3_6 0xD +#define PM2XXX_VBAT_LOW_LEVEL_3_7 0xE +#define PM2XXX_VBAT_LOW_LEVEL_3_8 0xF +#define PM2XXX_VBAT_LOW_LEVEL_3_9 0x10 +#define PM2XXX_VBAT_LOW_LEVEL_4_0 0x11 +#define PM2XXX_VBAT_LOW_LEVEL_4_1 0x12 +#define PM2XXX_VBAT_LOW_LEVEL_4_2 0x13 + +/* SW CTRL */ +#define PM2XXX_SWCTRL_HW 0x0 +#define PM2XXX_SWCTRL_SW 0x1 + + +/* LED Driver Control */ +#define PM2XXX_LED_CURRENT_2_5MA (0X0<<2) +#define PM2XXX_LED_CURRENT_1MA (0X1<<2) +#define PM2XXX_LED_CURRENT_5MA (0X2<<2) +#define PM2XXX_LED_CURRENT_10MA (0X3<<2) + +#define PM2XXX_LED_SELECT_EN (0X0<<1) +#define PM2XXX_LED_SELECT_DIS (0X1<<1) + +#define PM2XXX_ANTI_OVERSHOOT_DIS 0X0 +#define PM2XXX_ANTI_OVERSHOOT_EN 0X1 + +#define to_pm2xxx_charger_ac_device_info(x) container_of((x), \ + struct pm2xxx_charger, ac_chg) + +static int pm2xxx_interrupt_registers[] = { + PM2XXX_REG_INT1 , + PM2XXX_REG_INT2 , + PM2XXX_REG_INT3 , + PM2XXX_REG_INT4 , + PM2XXX_REG_INT5 , + PM2XXX_REG_INT6 , +}; + +enum pm2xxx_reg_int1 { + PM2XXX_INT1_ITVBATDISCONNECT = 0x02, + PM2XXX_INT1_ITVBATLOWR = 0x04, + PM2XXX_INT1_ITVBATLOWF = 0x08, +}; + +enum pm2xxx_mask_reg_int1 { + PM2XXX_INT1_M_ITVBATDISCONNECT = 0x02, + PM2XXX_INT1_M_ITVBATLOWR = 0x04, + PM2XXX_INT1_M_ITVBATLOWF = 0x08, +}; + +enum pm2xxx_source_reg_int1 { + PM2XXX_INT1_S_ITVBATDISCONNECT = 0x02, + PM2XXX_INT1_S_ITVBATLOWR = 0x04, + PM2XXX_INT1_S_ITVBATLOWF = 0x08, +}; + +enum pm2xxx_reg_int2 { + PM2XXX_INT2_ITVPWR2PLUG = 0x01, + PM2XXX_INT2_ITVPWR2UNPLUG = 0x02, + PM2XXX_INT2_ITVPWR1PLUG = 0x04, + PM2XXX_INT2_ITVPWR1UNPLUG = 0x08, +}; + +enum pm2xxx_mask_reg_int2 { + PM2XXX_INT2_M_ITVPWR2PLUG = 0x01, + PM2XXX_INT2_M_ITVPWR2UNPLUG = 0x02, + PM2XXX_INT2_M_ITVPWR1PLUG = 0x04, + PM2XXX_INT2_M_ITVPWR1UNPLUG = 0x08, +}; + +enum pm2xxx_source_reg_int2 { + PM2XXX_INT2_S_ITVPWR2PLUG = 0x03, + PM2XXX_INT2_S_ITVPWR1PLUG = 0x0c, +}; + +enum pm2xxx_reg_int3 { + PM2XXX_INT3_ITCHPRECHARGEWD = 0x01, + PM2XXX_INT3_ITCHCCWD = 0x02, + PM2XXX_INT3_ITCHCVWD = 0x04, + PM2XXX_INT3_ITAUTOTIMEOUTWD = 0x08, +}; + +enum pm2xxx_mask_reg_int3 { + PM2XXX_INT3_M_ITCHPRECHARGEWD = 0x01, + PM2XXX_INT3_M_ITCHCCWD = 0x02, + PM2XXX_INT3_M_ITCHCVWD = 0x04, + PM2XXX_INT3_M_ITAUTOTIMEOUTWD = 0x08, +}; + +enum pm2xxx_source_reg_int3 { + PM2XXX_INT3_S_ITCHPRECHARGEWD = 0x01, + PM2XXX_INT3_S_ITCHCCWD = 0x02, + PM2XXX_INT3_S_ITCHCVWD = 0x04, + PM2XXX_INT3_S_ITAUTOTIMEOUTWD = 0x08, +}; + +enum pm2xxx_reg_int4 { + PM2XXX_INT4_ITBATTEMPCOLD = 0x01, + PM2XXX_INT4_ITBATTEMPHOT = 0x02, + PM2XXX_INT4_ITVPWR2OVV = 0x04, + PM2XXX_INT4_ITVPWR1OVV = 0x08, + PM2XXX_INT4_ITCHARGINGON = 0x10, + PM2XXX_INT4_ITVRESUME = 0x20, + PM2XXX_INT4_ITBATTFULL = 0x40, + PM2XXX_INT4_ITCVPHASE = 0x80, +}; + +enum pm2xxx_mask_reg_int4 { + PM2XXX_INT4_M_ITBATTEMPCOLD = 0x01, + PM2XXX_INT4_M_ITBATTEMPHOT = 0x02, + PM2XXX_INT4_M_ITVPWR2OVV = 0x04, + PM2XXX_INT4_M_ITVPWR1OVV = 0x08, + PM2XXX_INT4_M_ITCHARGINGON = 0x10, + PM2XXX_INT4_M_ITVRESUME = 0x20, + PM2XXX_INT4_M_ITBATTFULL = 0x40, + PM2XXX_INT4_M_ITCVPHASE = 0x80, +}; + +enum pm2xxx_source_reg_int4 { + PM2XXX_INT4_S_ITBATTEMPCOLD = 0x01, + PM2XXX_INT4_S_ITBATTEMPHOT = 0x02, + PM2XXX_INT4_S_ITVPWR2OVV = 0x04, + PM2XXX_INT4_S_ITVPWR1OVV = 0x08, + PM2XXX_INT4_S_ITCHARGINGON = 0x10, + PM2XXX_INT4_S_ITVRESUME = 0x20, + PM2XXX_INT4_S_ITBATTFULL = 0x40, + PM2XXX_INT4_S_ITCVPHASE = 0x80, +}; + +enum pm2xxx_reg_int5 { + PM2XXX_INT5_ITTHERMALSHUTDOWNRISE = 0x01, + PM2XXX_INT5_ITTHERMALSHUTDOWNFALL = 0x02, + PM2XXX_INT5_ITTHERMALWARNINGRISE = 0x04, + PM2XXX_INT5_ITTHERMALWARNINGFALL = 0x08, + PM2XXX_INT5_ITVSYSTEMOVV = 0x10, +}; + +enum pm2xxx_mask_reg_int5 { + PM2XXX_INT5_M_ITTHERMALSHUTDOWNRISE = 0x01, + PM2XXX_INT5_M_ITTHERMALSHUTDOWNFALL = 0x02, + PM2XXX_INT5_M_ITTHERMALWARNINGRISE = 0x04, + PM2XXX_INT5_M_ITTHERMALWARNINGFALL = 0x08, + PM2XXX_INT5_M_ITVSYSTEMOVV = 0x10, +}; + +enum pm2xxx_source_reg_int5 { + PM2XXX_INT5_S_ITTHERMALSHUTDOWNRISE = 0x01, + PM2XXX_INT5_S_ITTHERMALSHUTDOWNFALL = 0x02, + PM2XXX_INT5_S_ITTHERMALWARNINGRISE = 0x04, + PM2XXX_INT5_S_ITTHERMALWARNINGFALL = 0x08, + PM2XXX_INT5_S_ITVSYSTEMOVV = 0x10, +}; + +enum pm2xxx_reg_int6 { + PM2XXX_INT6_ITVPWR2DROP = 0x01, + PM2XXX_INT6_ITVPWR1DROP = 0x02, + PM2XXX_INT6_ITVPWR2VALIDRISE = 0x04, + PM2XXX_INT6_ITVPWR2VALIDFALL = 0x08, + PM2XXX_INT6_ITVPWR1VALIDRISE = 0x10, + PM2XXX_INT6_ITVPWR1VALIDFALL = 0x20, +}; + +enum pm2xxx_mask_reg_int6 { + PM2XXX_INT6_M_ITVPWR2DROP = 0x01, + PM2XXX_INT6_M_ITVPWR1DROP = 0x02, + PM2XXX_INT6_M_ITVPWR2VALIDRISE = 0x04, + PM2XXX_INT6_M_ITVPWR2VALIDFALL = 0x08, + PM2XXX_INT6_M_ITVPWR1VALIDRISE = 0x10, + PM2XXX_INT6_M_ITVPWR1VALIDFALL = 0x20, +}; + +enum pm2xxx_source_reg_int6 { + PM2XXX_INT6_S_ITVPWR2DROP = 0x01, + PM2XXX_INT6_S_ITVPWR1DROP = 0x02, + PM2XXX_INT6_S_ITVPWR2VALIDRISE = 0x04, + PM2XXX_INT6_S_ITVPWR2VALIDFALL = 0x08, + PM2XXX_INT6_S_ITVPWR1VALIDRISE = 0x10, + PM2XXX_INT6_S_ITVPWR1VALIDFALL = 0x20, +}; + +static enum power_supply_property pm2xxx_charger_ac_props[] = { + POWER_SUPPLY_PROP_HEALTH, + POWER_SUPPLY_PROP_PRESENT, + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_VOLTAGE_AVG, + POWER_SUPPLY_PROP_CURRENT_NOW, +}; + +static int pm2xxx_charger_voltage_map[] = { + 3500 , + 3525 , + 3550 , + 3575 , + 3600 , + 3625 , + 3650 , + 3675 , + 3700 , + 3725 , + 3750 , + 3775 , + 3800 , + 3825 , + 3850 , + 3875 , + 3900 , + 3925 , + 3950 , + 3975 , + 4000 , + 4025 , + 4050 , + 4075 , + 4100 , + 4125 , + 4150 , + 4175 , + 4200 , + 4225 , + 4250 , + 4275 , + 4300 , +}; + +static int pm2xxx_charger_current_map[] = { + 200 , + 200 , + 400 , + 600 , + 800 , + 1000 , + 1200 , + 1400 , + 1600 , + 1800 , + 2000 , + 2200 , + 2400 , + 2600 , + 2800 , + 3000 , +}; + +#ifdef CONFIG_PM2XXX_DEEP_DEBUG +/* PM2XXX registers list */ +static struct ddbg_register ddbg_pm2xxx_registers[] = { + DDBG_REG("PM2XXX_BATT_CTRL_REG1", PM2XXX_BATT_CTRL_REG1, DDBG_RW), + DDBG_REG("PM2XXX_BATT_CTRL_REG2", PM2XXX_BATT_CTRL_REG2, DDBG_RW), + DDBG_REG("PM2XXX_BATT_CTRL_REG3", PM2XXX_BATT_CTRL_REG3, DDBG_RW), + DDBG_REG("PM2XXX_BATT_CTRL_REG4", PM2XXX_BATT_CTRL_REG4, DDBG_RW), + DDBG_REG("PM2XXX_BATT_CTRL_REG5", PM2XXX_BATT_CTRL_REG5, DDBG_RW), + DDBG_REG("PM2XXX_BATT_CTRL_REG6", PM2XXX_BATT_CTRL_REG6, DDBG_RW), + DDBG_REG("PM2XXX_BATT_CTRL_REG7", PM2XXX_BATT_CTRL_REG7, DDBG_RW), + DDBG_REG("PM2XXX_BATT_CTRL_REG8", PM2XXX_BATT_CTRL_REG8, DDBG_RW), + DDBG_REG("PM2XXX_NTC_CTRL_REG1", PM2XXX_NTC_CTRL_REG1, DDBG_RW), + DDBG_REG("PM2XXX_NTC_CTRL_REG2", PM2XXX_NTC_CTRL_REG2, DDBG_RW), + DDBG_REG("PM2XXX_BATT_CTRL_REG9", PM2XXX_BATT_CTRL_REG9, DDBG_RW), + DDBG_REG("PM2XXX_BATT_STAT_REG1", PM2XXX_BATT_STAT_REG1, DDBG_RO), + DDBG_REG("PM2XXX_INP_VOLT_VPWR2", PM2XXX_INP_VOLT_VPWR2, DDBG_RW), + DDBG_REG("PM2XXX_INP_DROP_VPWR2", PM2XXX_INP_DROP_VPWR2, DDBG_RW), + DDBG_REG("PM2XXX_INP_VOLT_VPWR1", PM2XXX_INP_VOLT_VPWR1, DDBG_RW), + DDBG_REG("PM2XXX_INP_DROP_VPWR1", PM2XXX_INP_DROP_VPWR1, DDBG_RW), + DDBG_REG("PM2XXX_INP_MODE_VPWR", PM2XXX_INP_MODE_VPWR, DDBG_RW), + DDBG_REG("PM2XXX_BATT_WD_KICK", PM2XXX_BATT_WD_KICK, DDBG_RW), + DDBG_REG("PM2XXX_DEV_VER_STAT", PM2XXX_DEV_VER_STAT, DDBG_RO), + DDBG_REG("PM2XXX_THERM_WARN_CTRL", PM2XXX_THERM_WARN_CTRL_REG, DDBG_RW), + DDBG_REG("PM2XXX_BAT_DISC_REG", PM2XXX_BATT_DISC_REG, DDBG_RW), + DDBG_REG("PM2XXX_BAT_LWLEV_CMP", PM2XXX_BATT_LOW_LEV_COMP_REG, DDBG_RW), + DDBG_REG("PM2XXX_BAT_LWLEV_VAL", PM2XXX_BATT_LOW_LEV_VAL_REG, DDBG_RW), + DDBG_REG("PM2XXX_I2C_PAD_CTRL_REG", PM2XXX_I2C_PAD_CTRL_REG, DDBG_RW), + DDBG_REG("PM2XXX_SW_CTRL_REG", PM2XXX_SW_CTRL_REG, DDBG_RW), + DDBG_REG("PM2XXX_LED_CTRL_REG", PM2XXX_LED_CTRL_REG, DDBG_RO), + DDBG_REG("PM2XXX_REG_INT1", PM2XXX_REG_INT1, DDBG_RO), + DDBG_REG("PM2XXX_MASK_REG_INT1", PM2XXX_MASK_REG_INT1, DDBG_RW), + DDBG_REG("PM2XXX_SRCE_REG_INT1", PM2XXX_SRCE_REG_INT1, DDBG_RO), + DDBG_REG("PM2XXX_REG_INT2", PM2XXX_REG_INT2, DDBG_RO), + DDBG_REG("PM2XXX_MASK_REG_INT2", PM2XXX_MASK_REG_INT2, DDBG_RW), + DDBG_REG("PM2XXX_SRCE_REG_INT2", PM2XXX_SRCE_REG_INT2, DDBG_RO), + DDBG_REG("PM2XXX_REG_INT3", PM2XXX_REG_INT3, DDBG_RO), + DDBG_REG("PM2XXX_MASK_REG_INT3", PM2XXX_MASK_REG_INT3, DDBG_RW), + DDBG_REG("PM2XXX_SRCE_REG_INT3", PM2XXX_SRCE_REG_INT3, DDBG_RO), + DDBG_REG("PM2XXX_REG_INT4", PM2XXX_REG_INT4, DDBG_RO), + DDBG_REG("PM2XXX_MASK_REG_INT4", PM2XXX_MASK_REG_INT4, DDBG_RW), + DDBG_REG("PM2XXX_SRCE_REG_INT4", PM2XXX_SRCE_REG_INT4, DDBG_RO), + DDBG_REG("PM2XXX_REG_INT5", PM2XXX_REG_INT5, DDBG_RO), + DDBG_REG("PM2XXX_MASK_REG_INT5", PM2XXX_MASK_REG_INT5, DDBG_RW), + DDBG_REG("PM2XXX_SRCE_REG_INT5", PM2XXX_SRCE_REG_INT5, DDBG_RO), + DDBG_REG("PM2XXX_REG_INT6", PM2XXX_REG_INT6, DDBG_RO), + DDBG_REG("PM2XXX_MASK_REG_INT6", PM2XXX_MASK_REG_INT6, DDBG_RW), + DDBG_REG("PM2XXX_SRCE_REG_INT6", PM2XXX_SRCE_REG_INT6, DDBG_RO), + DDBG_REG_NULL, +}; + +static struct pm2xxx_charger *pm2xxx_ddbg; +#endif + +struct pm2xxx_irq { + char *name; + irqreturn_t (*isr)(int irq, void *data); +}; + +struct pm2xxx_charger_info { + int charger_connected; + int charger_online; + int charger_voltage; + int cv_active; + bool wd_expired; +}; + +struct pm2xxx_charger_event_flags { + bool mainextchnotok; + bool main_thermal_prot; + bool ovv; + bool chgwdexp; +}; + +struct pm2xxx_config { + struct i2c_client *pm2xxx_i2c; + struct i2c_device_id *pm2xxx_id; +}; + +struct pm2xxx_charger { + struct device *dev; + u8 chip_id; + bool vddadc_en_ac; + struct pm2xxx_config config; + bool ac_conn; + unsigned int gpio_irq; + int vbat; + int old_vbat; + int failure_case; + int failure_input_ovv; + int pm2_int[6]; + struct ab8500_gpadc *gpadc; + struct regulator *regu; + struct pm2xxx_bm_data *bat; + struct mutex lock; + struct ab8500 *parent; + struct pm2xxx_charger_info ac; + struct pm2xxx_charger_platform_data *pdata; + struct workqueue_struct *charger_wq; + struct delayed_work check_vbat_work; + struct work_struct ac_work; + struct work_struct check_main_thermal_prot_work; + struct ux500_charger ac_chg; + struct pm2xxx_charger_event_flags flags; +#ifdef CONFIG_PM2XXX_DEEP_DEBUG + struct dentry *ddbg_dir_pm2xxx; +#endif +}; + +static const struct i2c_device_id pm2xxx_ident[] = { + { "pm2301", 0 }, + { } +}; + +static int __pm2xxx_read(struct pm2xxx_charger *pm2, int reg, int num, u8 *data) +{ + int ret; + + ret = i2c_smbus_read_i2c_block_data(pm2->config.pm2xxx_i2c, reg, + num, (u8 *)data); + if (ret < 0) + dev_err(pm2->dev, "Error reading %d regs at %d\n", num, reg); + + return ret; +} + +static int __pm2xxx_write(struct pm2xxx_charger *pm2, int reg, int num, u8 data) +{ + int ret; + + ret = i2c_smbus_write_i2c_block_data(pm2->config.pm2xxx_i2c, reg, + num, &data); + if (ret < 0) + dev_err(pm2->dev, "Error writing %d regs at %d\n", num, reg); + + return ret; + +} + +static int pm2xxx_reg_read(struct pm2xxx_charger *pm2, int reg) +{ + u8 val; + + __pm2xxx_read(pm2, reg, 1, &val); + + return val; +} + +static int pm2xxx_reg_write(struct pm2xxx_charger *pm2, int reg, u8 val) +{ + int ret; + + ret = __pm2xxx_write(pm2, reg, 1, val); + + return ret; +} + +int pm2xxx_charging_enable_mngt(struct pm2xxx_charger *pm2) +{ + int ret; + + /* Enable charging */ + ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG2, + (PM2XXX_CH_AUTO_RESUME_EN | PM2XXX_CHARGER_ENA)); + + return ret; +} + +int pm2xxx_charging_disable_mngt(struct pm2xxx_charger *pm2) +{ + int ret; + + /* Disable charging */ + ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG2, + (PM2XXX_CH_AUTO_RESUME_DIS | PM2XXX_CHARGER_DIS)); + + return ret; +} + +int pm2xxx_charger_batt_therm_mngt(struct pm2xxx_charger *pm2, int val) +{ + queue_work(pm2->charger_wq, &pm2->check_main_thermal_prot_work); + + return 0; +} + + +int pm2xxx_charger_die_therm_mngt(struct pm2xxx_charger *pm2, int val) +{ + queue_work(pm2->charger_wq, &pm2->check_main_thermal_prot_work); + + return 0; +} + +int pm2xxx_charger_ovv_mngt(struct pm2xxx_charger *pm2, int val) +{ + int ret = 0; + + pm2->failure_input_ovv++; + if (pm2->failure_input_ovv < 4) { + ret = pm2xxx_charging_enable_mngt(pm2); + goto out; + } else { + pm2->failure_input_ovv = 0; + dev_err(pm2->dev, "Overvoltage detected\n"); + pm2->flags.ovv = true; + power_supply_changed(&pm2->ac_chg.psy); + } + +out: + return ret; +} + +int pm2xxx_charger_wd_exp_mngt(struct pm2xxx_charger *pm2, int val) +{ + dev_dbg(pm2->dev , "20 minutes watchdog occured\n"); + + pm2->ac.wd_expired = true; + power_supply_changed(&pm2->ac_chg.psy); + + return 0; +} + +int pm2xxx_charger_vbat_lsig_mngt(struct pm2xxx_charger *pm2, int val) +{ + switch (val) { + case PM2XXX_INT1_ITVBATLOWR: + dev_dbg(pm2->dev, "VBAT grows above VBAT_LOW level\n"); + /* TODO: Handle this */ + break; + + case PM2XXX_INT1_ITVBATLOWF: + dev_dbg(pm2->dev, "VBAT drops below VBAT_LOW level\n"); + /* TODO: Handle this */ + break; + + default: + dev_err(pm2->dev, "Unknown VBAT level\n"); + } + + return 0; +} + +int pm2xxx_charger_bat_disc_mngt(struct pm2xxx_charger *pm2, int val) +{ + int ret; + + dev_dbg(pm2->dev, "battery disconnected\n"); + + /* TODO: Update charging status */ + ret = pm2xxx_charging_disable_mngt(pm2); + + return ret; +} + +static int pm2xxx_charger_detection(struct pm2xxx_charger *pm2) +{ + int ret = 0; + + ret = pm2xxx_reg_read(pm2, PM2XXX_SRCE_REG_INT2); + + if (ret < 0) { + dev_err(pm2->dev, "Charger detection failed\n"); + return ret; + } + + ret &= (PM2XXX_INT2_S_ITVPWR1PLUG | PM2XXX_INT2_S_ITVPWR2PLUG); + + return ret; +} + +static int pm2xxx_charger_itv_pwr_plug_mngt(struct pm2xxx_charger *pm2, int val) +{ + + int ret; + + /* + * Since we can't be sure that the events are received + * synchronously, we have the check if the main charger is + * connected by reading the interrupt source register. + */ + ret = pm2xxx_charger_detection(pm2); + + if (ret > 0) { + pm2->ac.charger_connected = 1; + pm2->ac_conn = true; + + queue_work(pm2->charger_wq, &pm2->ac_work); + } + + + return ret; +} + +static int pm2xxx_charger_itv_pwr_unplug_mngt(struct pm2xxx_charger *pm2, + int val) +{ + pm2->ac.charger_connected = 0; + queue_work(pm2->charger_wq, &pm2->ac_work); + + return 0; +} + +static int pm2_int_reg0(struct pm2xxx_charger *pm2) +{ + int ret; + + if (pm2->pm2_int[0] & + (PM2XXX_INT1_ITVBATLOWR | PM2XXX_INT1_ITVBATLOWF)) { + ret = pm2xxx_charger_vbat_lsig_mngt(pm2, pm2->pm2_int[0] & + (PM2XXX_INT1_ITVBATLOWR | PM2XXX_INT1_ITVBATLOWF)); + } + + if (pm2->pm2_int[0] & PM2XXX_INT1_ITVBATDISCONNECT) { + ret = pm2xxx_charger_bat_disc_mngt(pm2, + PM2XXX_INT1_ITVBATDISCONNECT); + } + + return ret; +} + +static int pm2_int_reg1(struct pm2xxx_charger *pm2) +{ + int ret; + + if (pm2->pm2_int[1] & + (PM2XXX_INT2_ITVPWR1PLUG | PM2XXX_INT2_ITVPWR2PLUG)) { + dev_dbg(pm2->dev , "Main charger plugged\n"); + ret = pm2xxx_charger_itv_pwr_plug_mngt(pm2, pm2->pm2_int[1] & + (PM2XXX_INT2_ITVPWR1PLUG | PM2XXX_INT2_ITVPWR2PLUG)); + } + + if (pm2->pm2_int[1] & + (PM2XXX_INT2_ITVPWR1UNPLUG | PM2XXX_INT2_ITVPWR2UNPLUG)) { + dev_dbg(pm2->dev , "Main charger unplugged\n"); + ret = pm2xxx_charger_itv_pwr_unplug_mngt(pm2, pm2->pm2_int[1] & + (PM2XXX_INT2_ITVPWR1UNPLUG | + PM2XXX_INT2_ITVPWR2UNPLUG)); + } + + + return ret; +} + +static int pm2_int_reg2(struct pm2xxx_charger *pm2) +{ + int ret; + + if (pm2->pm2_int[2] & PM2XXX_INT3_ITAUTOTIMEOUTWD) + ret = pm2xxx_charger_wd_exp_mngt(pm2, pm2->pm2_int[2]); + + if (pm2->pm2_int[2] & (PM2XXX_INT3_ITCHPRECHARGEWD | + PM2XXX_INT3_ITCHCCWD | PM2XXX_INT3_ITCHCVWD)) { + dev_dbg(pm2->dev, + "Watchdog occured for precharge, CC and CV charge\n"); + + /*TODO: handle watchdog expired */ + } + + return ret; +} + +static int pm2_int_reg3(struct pm2xxx_charger *pm2) +{ + int ret; + + if (pm2->pm2_int[3] & (PM2XXX_INT4_ITCHARGINGON)) { + dev_dbg(pm2->dev , + "chargind operation has started\n"); + + /* TODO: Handle charging started */ + } + + if (pm2->pm2_int[3] & (PM2XXX_INT4_ITVRESUME)) { + + dev_dbg(pm2->dev, + "battery discharged down to VResume threshold\n"); + + /* TODO: Handle recharging */ + } + + if (pm2->pm2_int[3] & (PM2XXX_INT4_ITBATTFULL)) { + + dev_dbg(pm2->dev , "battery fully detected\n"); + + /* TODO: Handle battery full */ + } + + if (pm2->pm2_int[3] & (PM2XXX_INT4_ITCVPHASE)) { + + dev_dbg(pm2->dev, "CV phase enter with 0.5C charging\n"); + + /* TODO: Handle CC to CV transition */ + } + + if (pm2->pm2_int[3] & + (PM2XXX_INT4_ITVPWR2OVV | PM2XXX_INT4_ITVPWR1OVV)) { + pm2->failure_case = VPWR_OVV; + ret = pm2xxx_charger_ovv_mngt(pm2, pm2->pm2_int[3] & + (PM2XXX_INT4_ITVPWR2OVV | PM2XXX_INT4_ITVPWR1OVV)); + dev_dbg(pm2->dev, "VPWR/VSYSTEM overvoltage detected\n"); + } + + if (pm2->pm2_int[3] & (PM2XXX_INT4_S_ITBATTEMPCOLD | + PM2XXX_INT4_S_ITBATTEMPHOT)) { + + pm2xxx_charger_batt_therm_mngt(pm2, + pm2->pm2_int[3] & (PM2XXX_INT4_S_ITBATTEMPCOLD | + PM2XXX_INT4_S_ITBATTEMPHOT)); + dev_dbg(pm2->dev, "BTEMP is too Low/High\n"); + } + + return ret; +} + +static int pm2_int_reg4(struct pm2xxx_charger *pm2) +{ + int ret; + + if (pm2->pm2_int[4] & PM2XXX_INT5_ITVSYSTEMOVV) { + pm2->failure_case = VSYSTEM_OVV; + ret = pm2xxx_charger_ovv_mngt(pm2, pm2->pm2_int[4] & + PM2XXX_INT5_ITVSYSTEMOVV); + dev_dbg(pm2->dev, "VSYSTEM overvoltage detected\n"); + } + + if (pm2->pm2_int[4] & (PM2XXX_INT5_ITTHERMALWARNINGFALL | + PM2XXX_INT5_ITTHERMALWARNINGRISE | + PM2XXX_INT5_ITTHERMALSHUTDOWNFALL | + PM2XXX_INT5_ITTHERMALSHUTDOWNRISE)) { + dev_dbg(pm2->dev, "BTEMP die temperature is too Low/High\n"); + ret = pm2xxx_charger_die_therm_mngt(pm2, pm2->pm2_int[4] & + (PM2XXX_INT5_ITTHERMALWARNINGFALL | + PM2XXX_INT5_ITTHERMALWARNINGRISE | + PM2XXX_INT5_ITTHERMALSHUTDOWNFALL | + PM2XXX_INT5_ITTHERMALSHUTDOWNRISE)); + } + + return ret; +} + +static int pm2_int_reg5(struct pm2xxx_charger *pm2) +{ + + if (pm2->pm2_int[5] + & (PM2XXX_INT6_ITVPWR2DROP | PM2XXX_INT6_ITVPWR1DROP)) { + dev_dbg(pm2->dev, "VMPWR drop to VBAT level\n"); + + /* TODO: handle this */ + } + + if (pm2->pm2_int[5] & (PM2XXX_INT6_ITVPWR2VALIDRISE | + PM2XXX_INT6_ITVPWR1VALIDRISE | + PM2XXX_INT6_ITVPWR2VALIDFALL | + PM2XXX_INT6_ITVPWR1VALIDFALL)) { + dev_dbg(pm2->dev, "Falling/Rising edge on WPWR1/2\n"); + + /* TODO: handle this */ + } + + return 0; +} + +static irqreturn_t pm2xxx_irq_int(int irq, void *data) +{ + struct pm2xxx_charger *pm2 = data; + int ret, i; + + for (i = 0; i < ARRAY_SIZE(pm2->pm2_int); i++) { + ret = pm2xxx_reg_read(pm2, pm2xxx_interrupt_registers[i]); + pm2->pm2_int[i] = ret; + } + + pm2_int_reg0(pm2); + pm2_int_reg1(pm2); + pm2_int_reg2(pm2); + pm2_int_reg3(pm2); + pm2_int_reg4(pm2); + pm2_int_reg5(pm2); + + return IRQ_HANDLED; +} + +int pm2xxx_charger_led_en(struct pm2xxx_charger *pm2, int on) +{ + return 0; +} + +static int pm2xxx_charger_get_ac_voltage(struct pm2xxx_charger *pm2) +{ + int vch = 0; + + if (pm2->ac.charger_connected) { + vch = ab8500_gpadc_convert(pm2->gpadc, MAIN_CHARGER_V); + if (vch < 0) + dev_err(pm2->dev, "%s gpadc conv failed,\n", __func__); + } + + return vch; +} + +static int pm2xxx_charger_ac_cv(struct pm2xxx_charger *pm2) +{ + int ret = 0; + + if (pm2->ac.charger_connected && pm2->ac.charger_online) { + + ret = pm2xxx_reg_read(pm2, PM2XXX_SRCE_REG_INT4); + if (ret < 0) { + dev_err(pm2->dev, "%s pm2xxx read failed\n", __func__); + return 0; + } + + if (ret & PM2XXX_INT4_S_ITCVPHASE) + ret = 1; + else + ret = 0; + } + + return ret; +} + +static int pm2xxx_charger_get_ac_current(struct pm2xxx_charger *pm2) +{ + int ich = 0; + + if (pm2->ac.charger_online) { + ich = ab8500_gpadc_convert(pm2->gpadc, MAIN_CHARGER_C); + if (ich < 0) + dev_err(pm2->dev, "%s gpadc conv failed\n", __func__); + } + + return ich; +} + +static int pm2xxx_current_to_regval(int curr) +{ + int i; + + if (curr < pm2xxx_charger_current_map[0]) + return 0; + + for (i = 0; i < ARRAY_SIZE(pm2xxx_charger_current_map); i++) { + if (curr < pm2xxx_charger_current_map[i]) + return i - 1; + } + + i = ARRAY_SIZE(pm2xxx_charger_current_map) - 1; + if (curr == pm2xxx_charger_current_map[i]) + return i; + else + return -1; +} + +static int pm2xxx_voltage_to_regval(int curr) +{ + int i; + + if (curr < pm2xxx_charger_voltage_map[0]) + return 0; + + for (i = 0; i < ARRAY_SIZE(pm2xxx_charger_voltage_map); i++) { + if (curr < pm2xxx_charger_voltage_map[i]) + return i - 1; + } + + i = ARRAY_SIZE(pm2xxx_charger_voltage_map) - 1; + if (curr == pm2xxx_charger_voltage_map[i]) + return i; + else + return -1; +} + +static int pm2xxx_charger_update_charger_current(struct ux500_charger *charger, + int ich_out) +{ + int ret; + int curr_index; + struct pm2xxx_charger *pm2; + + if (charger->psy.type == POWER_SUPPLY_TYPE_MAINS) + pm2 = to_pm2xxx_charger_ac_device_info(charger); + else + return -ENXIO; + + curr_index = pm2xxx_current_to_regval(ich_out); + if (curr_index < 0) { + dev_err(pm2->dev, + "Charger current too high, " + "charging not started\n"); + return -ENXIO; + } + + ret = pm2xxx_reg_read(pm2, PM2XXX_BATT_CTRL_REG6); + if (ret >= 0) { + ret &= ~0xf; + ret |= curr_index; + ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG6, ret); + if (ret < 0) { + dev_err(pm2->dev, + "%s write failed\n", __func__); + } + } + + return ret; +} + +static int pm2xxx_charger_ac_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct pm2xxx_charger *pm2; + + pm2 = to_pm2xxx_charger_ac_device_info(psy_to_ux500_charger(psy)); + + switch (psp) { + case POWER_SUPPLY_PROP_HEALTH: + if (pm2->flags.mainextchnotok) + val->intval = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE; + else if (pm2->ac.wd_expired) + val->intval = POWER_SUPPLY_HEALTH_DEAD; + else if (pm2->flags.main_thermal_prot) + val->intval = POWER_SUPPLY_HEALTH_OVERHEAT; + else + val->intval = POWER_SUPPLY_HEALTH_GOOD; + break; + case POWER_SUPPLY_PROP_ONLINE: + val->intval = pm2->ac.charger_online; + break; + case POWER_SUPPLY_PROP_PRESENT: + val->intval = pm2->ac.charger_connected; + break; + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + pm2->ac.charger_voltage = pm2xxx_charger_get_ac_voltage(pm2); + val->intval = pm2->ac.charger_voltage * 1000; + break; + case POWER_SUPPLY_PROP_VOLTAGE_AVG: + pm2->ac.cv_active = pm2xxx_charger_ac_cv(pm2); + val->intval = pm2->ac.cv_active; + break; + case POWER_SUPPLY_PROP_CURRENT_NOW: + val->intval = pm2xxx_charger_get_ac_current(pm2) * 1000; + break; + default: + return -EINVAL; + } + return 0; +} + +static int pm2xxx_charging_init(struct pm2xxx_charger *pm2) +{ + int ret; + + /* enable CC and CV watchdog */ + ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG3, + (PM2XXX_CH_WD_CV_PHASE_60MIN | PM2XXX_CH_WD_CC_PHASE_60MIN)); + + /* enable precharge watchdog */ + ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG4, + PM2XXX_CH_WD_PRECH_PHASE_60MIN); + + return ret; +} + +static int pm2xxx_charger_ac_en(struct ux500_charger *charger, + int enable, int vset, int iset) +{ + int ret; + int volt_index; + int curr_index; + + struct pm2xxx_charger *pm2 = to_pm2xxx_charger_ac_device_info(charger); + + if (enable) { + if (!pm2->ac.charger_connected) { + dev_dbg(pm2->dev, "AC charger not connected\n"); + return -ENXIO; + } + + dev_dbg(pm2->dev, "Enable AC: %dmV %dmA\n", vset, iset); + if (!pm2->vddadc_en_ac) { + regulator_enable(pm2->regu); + pm2->vddadc_en_ac = true; + } + + pm2xxx_charging_init(pm2); + + volt_index = pm2xxx_voltage_to_regval(vset); + curr_index = pm2xxx_current_to_regval(iset); + + if (volt_index < 0 || curr_index < 0) { + dev_err(pm2->dev, + "Charger voltage or current too high, " + "charging not started\n"); + return -ENXIO; + } + + ret = pm2xxx_reg_read(pm2, PM2XXX_BATT_CTRL_REG8); + if (ret >= 0) { + ret &= ~0x3F; + ret |= volt_index; + ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG8, ret); + + if (ret < 0) { + dev_err(pm2->dev, + "%s write failed\n", __func__); + goto error_occured; + } + } + + ret = pm2xxx_reg_read(pm2, PM2XXX_BATT_CTRL_REG6); + if (ret >= 0) { + ret &= ~0xf; + ret |= curr_index; + ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_CTRL_REG6, ret); + if (ret < 0) { + dev_err(pm2->dev, + "%s write failed\n", __func__); + goto error_occured; + } + } + + if (!pm2->bat->enable_overshoot) { + ret = pm2xxx_reg_read(pm2, PM2XXX_LED_CTRL_REG); + if (ret >= 0) { + ret |= 0x01; + ret = pm2xxx_reg_write(pm2, PM2XXX_LED_CTRL_REG, + ret); + if (ret < 0) + goto error_occured; + } + } + + ret = pm2xxx_charging_enable_mngt(pm2); + if (ret) { + dev_err(pm2->dev, "%s write failed\n", __func__); + return ret; + } + + /*TODO: Add pm2301 Enable LED code */ + + pm2->ac.charger_online = 1; + } else { + /* TODO: add correct LED disable code */ + + pm2->ac.charger_online = 0; + pm2->ac.wd_expired = false; + + /* Disable regulator if enabled */ + if (pm2->vddadc_en_ac) { + regulator_disable(pm2->regu); + pm2->vddadc_en_ac = false; + } + + ret = pm2xxx_charging_disable_mngt(pm2); + if (ret) { + dev_err(pm2->dev, "%s write failed\n", __func__); + return ret; + } + + dev_dbg(pm2->dev, "PM2301: " "Disabled AC charging\n"); + } + power_supply_changed(&pm2->ac_chg.psy); + +error_occured: + return ret; +} + +static int pm2xxx_charger_watchdog_kick(struct ux500_charger *charger) +{ + int ret; + struct pm2xxx_charger *pm2; + + if (charger->psy.type == POWER_SUPPLY_TYPE_MAINS) + pm2 = to_pm2xxx_charger_ac_device_info(charger); + else + return -ENXIO; + + ret = pm2xxx_reg_write(pm2, PM2XXX_BATT_WD_KICK, WD_TIMER); + if (ret) + dev_err(pm2->dev, "Failed to kick WD!\n"); + + return ret; +} + +static void pm2xxx_charger_ac_work(struct work_struct *work) +{ + struct pm2xxx_charger *pm2 = container_of(work, + struct pm2xxx_charger, ac_work); + + + power_supply_changed(&pm2->ac_chg.psy); + sysfs_notify(&pm2->ac_chg.psy.dev->kobj, NULL, "present"); +}; + +/* TODO: how thermal protection is handled in pm2301 */ +static void pm2xxx_charger_check_main_thermal_prot_work( + struct work_struct *work) +{ + + /* TODO: check the thermal and die thermal protection */ +}; + +static struct pm2xxx_irq pm2xxx_charger_irq[] = { + {"PM2XXX_IRQ_INT", pm2xxx_irq_int}, +}; + +static int pm2xxx_wall_charger_resume(struct i2c_client *i2c_client) +{ + return 0; +} + +static int pm2xxx_wall_charger_suspend(struct i2c_client *i2c_client, + pm_message_t state) +{ + return 0; +} + +#ifdef CONFIG_PM2XXX_DEEP_DEBUG +static int pm2xxx_ddbg_write(u32 addr, u32 val) +{ + int err; + + err = pm2xxx_reg_write(pm2xxx_ddbg, addr, val); + + if (err < 0) + return -EIO; + + return 0; +} + +static int pm2xxx_ddbg_read(u32 addr, u32 *val) +{ + *val = pm2xxx_reg_read(pm2xxx_ddbg, addr); + + if (val < 0) + return -EIO; + + return 0; +} + +static struct ddbg_target ddbg_pm2xxx = { + .phyaddr = 0, + .reg = ddbg_pm2xxx_registers, + .read_reg = pm2xxx_ddbg_read, + .write_reg = pm2xxx_ddbg_write, +}; +#endif + +static int __devinit pm2xxx_wall_charger_probe(struct i2c_client *i2c_client, + const struct i2c_device_id *id) +{ + struct pm2xxx_platform_data *pl_data = i2c_client->dev.platform_data; + struct pm2xxx_charger *pm2; + int ret = 0; + + pm2 = kzalloc(sizeof(struct pm2xxx_charger), GFP_KERNEL); + if (!pm2) + return -ENOMEM; + + /* get parent data */ + pm2->dev = &i2c_client->dev; + pm2->gpadc = ab8500_gpadc_get(); + + /* get charger spcific platform data */ + if (!pl_data->wall_charger) { + dev_err(pm2->dev, "no charger platform data supplied\n"); + ret = -EINVAL; + goto free_device_info; + } + + pm2->pdata = pl_data->wall_charger; + + /* get battery specific platform data */ + if (!pl_data->battery) { + dev_err(pm2->dev, "no battery platform data supplied\n"); + ret = -EINVAL; + goto free_device_info; + } + + pm2->bat = pl_data->battery; + + if (!i2c_check_functionality(i2c_client->adapter, + I2C_FUNC_SMBUS_BYTE_DATA | + I2C_FUNC_SMBUS_READ_WORD_DATA)) { + ret = -ENODEV; + dev_info(pm2->dev, "pm2301 i2c_check_functionality failed\n"); + goto free_device_info; + } + + pm2->config.pm2xxx_i2c = i2c_client; + pm2->config.pm2xxx_id = (struct i2c_device_id *) id; + i2c_set_clientdata(i2c_client, pm2); + + /* AC supply */ + /* power_supply base class */ + pm2->ac_chg.psy.name = pm2->pdata->label; + pm2->ac_chg.psy.type = POWER_SUPPLY_TYPE_MAINS; + pm2->ac_chg.psy.properties = pm2xxx_charger_ac_props; + pm2->ac_chg.psy.num_properties = ARRAY_SIZE(pm2xxx_charger_ac_props); + pm2->ac_chg.psy.get_property = pm2xxx_charger_ac_get_property; + pm2->ac_chg.psy.supplied_to = pm2->pdata->supplied_to; + pm2->ac_chg.psy.num_supplicants = pm2->pdata->num_supplicants; + /* pm2xxx_charger sub-class */ + pm2->ac_chg.ops.enable = &pm2xxx_charger_ac_en; + pm2->ac_chg.ops.kick_wd = &pm2xxx_charger_watchdog_kick; + pm2->ac_chg.ops.update_curr = &pm2xxx_charger_update_charger_current; + pm2->ac_chg.max_out_volt = pm2xxx_charger_voltage_map[ + ARRAY_SIZE(pm2xxx_charger_voltage_map) - 1]; + pm2->ac_chg.max_out_curr = pm2xxx_charger_current_map[ + ARRAY_SIZE(pm2xxx_charger_current_map) - 1]; + + /* Create a work queue for the charger */ + pm2->charger_wq = + create_singlethread_workqueue("pm2xxx_charger_wq"); + if (pm2->charger_wq == NULL) { + dev_err(pm2->dev, "failed to create work queue\n"); + goto free_device_info; + } + + /* Init work for charger detection */ + INIT_WORK(&pm2->ac_work, pm2xxx_charger_ac_work); + + /* Init work for checking HW status */ + INIT_WORK(&pm2->check_main_thermal_prot_work, + pm2xxx_charger_check_main_thermal_prot_work); + + /* + * VDD ADC supply needs to be enabled from this driver when there + * is a charger connected to avoid erroneous BTEMP_HIGH/LOW + * interrupts during charging + */ + pm2->regu = regulator_get(pm2->dev, "vddadc"); + if (IS_ERR(pm2->regu)) { + ret = PTR_ERR(pm2->regu); + dev_err(pm2->dev, "failed to get vddadc regulator\n"); + goto free_charger_wq; + } + + /* Register AC charger class */ + ret = power_supply_register(pm2->dev, &pm2->ac_chg.psy); + if (ret) { + dev_err(pm2->dev, "failed to register AC charger\n"); + goto free_regulator; + } + + /* Register interrupts */ + ret = request_threaded_irq(pm2->pdata->irq_number, NULL, + pm2xxx_charger_irq[0].isr, + pm2->pdata->irq_type, + pm2xxx_charger_irq[0].name, pm2); + + if (ret != 0) { + dev_err(pm2->dev, "failed to request %s IRQ %d: %d\n" + , pm2xxx_charger_irq[0].name, pm2->pdata->irq_number, ret); + goto unregister_pm2xxx_charger; + } + + /* TODO: I2C Read/Write will fail, if AC adaptor is not connected. + * fix the charger detection mechanism. + */ + ret = pm2xxx_charger_detection(pm2); + + if (ret > 0) { + pm2->ac.charger_connected = 1; + pm2->ac_conn = true; + power_supply_changed(&pm2->ac_chg.psy); + sysfs_notify(&pm2->ac_chg.psy.dev->kobj, NULL, "present"); + } + +#ifdef CONFIG_PM2XXX_DEEP_DEBUG + pm2xxx_ddbg = pm2; + pm2->ddbg_dir_pm2xxx = debugfs_create_dir("pm2xxx", NULL); + if (pm2->ddbg_dir_pm2xxx == NULL) { + ret = -ENOMEM; + goto err_deep_debug; + } + ret = deep_debug_register(&ddbg_pm2xxx, pm2->ddbg_dir_pm2xxx); + if (ret) + goto err_deep_debug; +#endif + + return 0; + +#ifdef CONFIG_PM2XXX_DEEP_DEBUG +err_deep_debug: + if (pm2->ddbg_dir_pm2xxx) { + debugfs_remove_recursive(pm2->ddbg_dir_pm2xxx); + pm2->ddbg_dir_pm2xxx = NULL; + } + dev_err(pm2->dev, "failed to create debugfs entries.\n"); + + /* disable interrupt */ + free_irq(pm2->pdata->irq_number, pm2); +#endif + +unregister_pm2xxx_charger: + /* unregister power supply */ + power_supply_unregister(&pm2->ac_chg.psy); +free_regulator: + /* disable the regulator */ + regulator_put(pm2->regu); +free_charger_wq: + destroy_workqueue(pm2->charger_wq); +free_device_info: + kfree(pm2); + return ret; +} + +static int __devexit pm2xxx_wall_charger_remove(struct i2c_client *i2c_client) +{ + struct pm2xxx_charger *pm2 = i2c_get_clientdata(i2c_client); + + /* Disable AC charging */ + pm2xxx_charger_ac_en(&pm2->ac_chg, false, 0, 0); + + /* Disable interrupts */ + free_irq(pm2->pdata->irq_number, pm2); + + /* Delete the work queue */ + destroy_workqueue(pm2->charger_wq); + +#ifdef CONFIG_PM2XXX_DEEP_DEBUG + deep_debug_unregister(&ddbg_pm2xxx); + if (pm2->ddbg_dir_pm2xxx) + debugfs_remove_recursive(pm2->ddbg_dir_pm2xxx); +#endif + + flush_scheduled_work(); + + /* disable the regulator */ + regulator_put(pm2->regu); + + power_supply_unregister(&pm2->ac_chg.psy); + + kfree(pm2); + + return 0; +} + +static const struct i2c_device_id pm2xxx_id[] = { + { "pm2301", 0 }, + { } +}; + +MODULE_DEVICE_TABLE(i2c, pm2xxx_id); + +static struct i2c_driver pm2xxx_charger_driver = { + .probe = pm2xxx_wall_charger_probe, + .remove = __devexit_p(pm2xxx_wall_charger_remove), + .suspend = pm2xxx_wall_charger_suspend, + .resume = pm2xxx_wall_charger_resume, + .driver = { + .name = "pm2xxx-wall_charger", + .owner = THIS_MODULE, + }, + .id_table = pm2xxx_id, +}; + +static int __init pm2xxx_charger_init(void) +{ + return i2c_add_driver(&pm2xxx_charger_driver); +} + +static void __exit pm2xxx_charger_exit(void) +{ + i2c_del_driver(&pm2xxx_charger_driver); +} + +subsys_initcall_sync(pm2xxx_charger_init); +module_exit(pm2xxx_charger_exit); + +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Rajkumar kasirajan, Olivier Launay"); +MODULE_ALIAS("platform:pm2xxx-charger"); +MODULE_DESCRIPTION("PM2xxx charger management driver"); + diff --git a/include/linux/pm2301_charger.h b/include/linux/pm2301_charger.h new file mode 100644 index 0000000..16bb1d3 --- /dev/null +++ b/include/linux/pm2301_charger.h @@ -0,0 +1,60 @@ +/* + * PM2301 charger driver. + * + * Copyright (C) 2012 ST Ericsson Corporation + * + * Contact: Olivier LAUNAY (olivier.launay@stericsson.com + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA + * 02110-1301 USA + */ + +#ifndef __LINUX_PM2301_H +#define __LINUX_PM2301_H + +/** + * struct pm2xxx_bm_charger_parameters - Charger specific parameters + * @ac_volt_max: maximum allowed AC charger voltage in mV + * @ac_curr_max: maximum allowed AC charger current in mA + */ +struct pm2xxx_bm_charger_parameters { + int ac_volt_max; + int ac_curr_max; +}; + +/** + * struct pm2xxx_bm_data - pm2xxx battery management data + * @enable_overshoot flag to enable VBAT overshoot control + * @chg_params charger parameters + */ +struct pm2xxx_bm_data { + bool enable_overshoot; + const struct pm2xxx_bm_charger_parameters *chg_params; +}; + +struct pm2xxx_charger_platform_data { + char **supplied_to; + size_t num_supplicants; + int i2c_bus; + const char *label; + int irq_number; + int irq_type; +}; + +struct pm2xxx_platform_data { + struct pm2xxx_charger_platform_data *wall_charger; + struct pm2xxx_bm_data *battery; +}; + +#endif /* __LINUX_PM2301_H */