Lines Matching full:charger
5 * Charger driver for AB8500
39 /* Charger constants */
94 /* Lowest charger voltage is 3.39V -> 0x4E */
107 /*External charger control*/
218 * struct ab8500_charger - ab8500 Charger device information
223 * @ac_conn: This will be true when the AC charger has been plugged
225 * charger is enabled
227 * charger is enabled
233 * @invalid_charger_detect_state State when forcing AB to use invalid charger
238 * @adc_main_charger_v ADC channel for main charger voltage
239 * @adc_main_charger_c ADC channel for main charger current
240 * @adc_vbus_v ADC channel for USB charger voltage
241 * @adc_usb_charger_c ADC channel for USB charger current
245 * @max_usb_in_curr: Max USB charger input current
246 * @ac_chg: AC charger power supply
247 * @usb_chg: USB charger power supply
248 * @ac: Structure that holds the AC charger properties
249 * @usb: Structure that holds the USB charger properties
256 * @check_usbchgnotok_work: Work for checking USB charger not ok status
257 * @kick_wd_work: Work for kicking the charger watchdog in case
259 * @ac_charger_attached_work: Work for checking if AC charger is still
261 * @usb_charger_attached_work: Work for checking if USB charger is still
263 * @ac_work: Work for checking AC charger connection
348 * should always be disabled when no charger is connected.
479 * ab8500_charger_get_ac_voltage() - get ac charger voltage
482 * Returns ac charger voltage in microvolt (on success)
488 /* Only measure voltage if the charger is connected */ in ab8500_charger_get_ac_voltage()
504 * ab8500_charger_ac_cv() - check if the main charger is in CV mode
507 * Returns ac charger CV mode (on success) else error code
514 /* Only check CV mode if the charger is online */ in ab8500_charger_ac_cv()
543 /* Only measure voltage if the charger is connected */ in ab8500_charger_get_vbus_voltage()
559 * ab8500_charger_get_usb_current() - get usb charger current
562 * This function returns the usb charger current.
569 /* Only measure current if the charger is online */ in ab8500_charger_get_usb_current()
585 * ab8500_charger_get_ac_current() - get ac charger current
588 * This function returns the ac charger current.
595 /* Only measure current if the charger is online */ in ab8500_charger_get_ac_current()
611 * ab8500_charger_usb_cv() - check if the usb charger is in CV mode
614 * Returns ac charger CV mode (on success) else error code
621 /* Only check CV mode if the charger is online */ in ab8500_charger_usb_cv()
646 * Returns the type of charger connected.
650 * interrupts of the charger detection
664 /* Check for AC charger */ in ab8500_charger_detect_chargers()
675 /* Check for USB charger */ in ab8500_charger_detect_chargers()
681 * charger was connected. Try waiting a little in ab8500_charger_detect_chargers()
747 * Dedicated charger level minus maximum current accessory in ab8500_charger_max_usb_curr()
756 * Dedicated charger level minus 120mA (20mA for ACA and in ab8500_charger_max_usb_curr()
780 dev_dbg(di->dev, "USB Type - Legacy charger.\n"); in ab8500_charger_max_usb_curr()
939 * This array maps the raw hex value to charger voltage used by the AB8500
1044 /* This array maps the raw register value to charger input current */
1050 /* This array maps the raw register value to charger output current */
1136 * @reg: select what charger register to check
1139 * Checks if charger source has not collapsed. If it has, further stepping
1152 * ab8500_charger_set_current() - set charger current
1154 * @ich_ua: charger current, in uA
1155 * @reg: select what charger register to set
1157 * Set charger current.
1158 * There is no state machine in the AB to step up/down the charger
1161 * this charger current step-up/down here.
1232 dev_dbg(di->dev, "%s set charger current: %d uA for reg: 0x%02x\n", in ab8500_charger_set_current()
1280 * @ich_in_ua: charger input current limit in microampere
1323 * ab8500_charger_set_main_in_curr() - set main charger input current
1325 * @ich_in_ua: input charger current, in uA
1327 * Set main charger input current.
1338 * ab8500_charger_set_output_curr() - set charger output current
1340 * @ich_out_ua: output charger current, in uA
1342 * Set charger output current.
1405 static int ab8500_charger_ac_en(struct ux500_charger *charger, in ab8500_charger_ac_en() argument
1414 struct ab8500_charger *di = to_ab8500_charger_ac_device_info(charger); in ab8500_charger_ac_en()
1419 dev_err(di->dev, "AC charger not connected\n"); in ab8500_charger_ac_en()
1431 * there is a charger enabled. Normally the VDD ADC supply in ab8500_charger_ac_en()
1452 "Charger voltage or current too high, " in ab8500_charger_ac_en()
1464 /* MainChInputCurr: current that can be drawn from the charger*/ in ab8500_charger_ac_en()
1485 /* Enable Main Charger */ in ab8500_charger_ac_en()
1505 * kick the charger watchdog even when no charger is in ab8500_charger_ac_en()
1506 * connected. This is only valid once the AC charger in ab8500_charger_ac_en()
1509 * by the charger driver when the AC charger in ab8500_charger_ac_en()
1577 * @ich_out_ua: charger output current in microampere
1582 static int ab8500_charger_usb_en(struct ux500_charger *charger, in ab8500_charger_usb_en() argument
1590 struct ab8500_charger *di = to_ab8500_charger_usb_device_info(charger); in ab8500_charger_usb_en()
1595 dev_err(di->dev, "USB charger not connected\n"); in ab8500_charger_usb_en()
1604 * there is a charger enabled. Normally the VDD ADC supply in ab8500_charger_usb_en()
1626 "Charger voltage or current too high, " in ab8500_charger_usb_en()
1645 /* Enable USB Charger */ in ab8500_charger_usb_en()
1733 * @charger: pointer to the ux500_charger structure
1735 * @iset_ua: charger output current in microampere
1737 * Check if the VBUS charger has been disconnected and reconnected without
1740 static int ab8500_charger_usb_check_enable(struct ux500_charger *charger, in ab8500_charger_usb_check_enable() argument
1746 struct ab8500_charger *di = to_ab8500_charger_usb_device_info(charger); in ab8500_charger_usb_check_enable()
1757 dev_dbg(di->dev, "USB charger ctrl: 0x%02x\n", usbch_ctrl1); in ab8500_charger_usb_check_enable()
1772 dev_err(di->dev, "Failed to enable VBUS charger %d\n", in ab8500_charger_usb_check_enable()
1782 * @charger: pointer to the ux500_charger structure
1784 * @iset_ua: charger output current in micrompere
1786 * Check if the AC charger has been disconnected and reconnected without
1789 static int ab8500_charger_ac_check_enable(struct ux500_charger *charger, in ab8500_charger_ac_check_enable() argument
1795 struct ab8500_charger *di = to_ab8500_charger_ac_device_info(charger); in ab8500_charger_ac_check_enable()
1806 dev_dbg(di->dev, "AC charger ctrl: 0x%02x\n", mainch_ctrl1); in ab8500_charger_ac_check_enable()
1822 dev_err(di->dev, "failed to enable AC charger %d\n", in ab8500_charger_ac_check_enable()
1831 * ab8500_charger_watchdog_kick() - kick charger watchdog
1834 * Kick charger watchdog
1837 static int ab8500_charger_watchdog_kick(struct ux500_charger *charger) in ab8500_charger_watchdog_kick() argument
1842 if (charger->psy->desc->type == POWER_SUPPLY_TYPE_MAINS) in ab8500_charger_watchdog_kick()
1843 di = to_ab8500_charger_ac_device_info(charger); in ab8500_charger_watchdog_kick()
1844 else if (charger->psy->desc->type == POWER_SUPPLY_TYPE_USB) in ab8500_charger_watchdog_kick()
1845 di = to_ab8500_charger_usb_device_info(charger); in ab8500_charger_watchdog_kick()
1858 * ab8500_charger_update_charger_current() - update charger current
1859 * @charger: pointer to the ab8500_charger structure
1862 * Update the charger output current for the specified charger
1865 static int ab8500_charger_update_charger_current(struct ux500_charger *charger, in ab8500_charger_update_charger_current() argument
1871 if (charger->psy->desc->type == POWER_SUPPLY_TYPE_MAINS) in ab8500_charger_update_charger_current()
1872 di = to_ab8500_charger_ac_device_info(charger); in ab8500_charger_update_charger_current()
1873 else if (charger->psy->desc->type == POWER_SUPPLY_TYPE_USB) in ab8500_charger_update_charger_current()
1874 di = to_ab8500_charger_usb_device_info(charger); in ab8500_charger_update_charger_current()
1954 * charger when charging with at some specific levels. This issue is only valid
1997 * ab8500_charger_check_hw_failure_work() - check main charger failure
2000 * Work queue function for checking the main charger status
2047 * Work queue function for kicking the charger watchdog.
2050 * logic. That means we have to continuously kick the charger
2051 * watchdog even when no charger is connected. This is only
2052 * valid once the AC charger has been enabled. This is
2054 * watchdog have to be kicked by the charger driver
2055 * when the AC charger is disabled
2075 * ab8500_charger_ac_work() - work to get and set main charger status
2078 * Work queue function for checking the main charger status
2089 * synchronously, we have the check if the main charger is in ab8500_charger_ac_work()
2322 "Invalid charger detected, state= 0\n"); in ab8500_charger_usb_link_status_work()
2323 /*Enable charger*/ in ab8500_charger_usb_link_status_work()
2327 /*Enable charger detection*/ in ab8500_charger_usb_link_status_work()
2338 "Invalid charger detected, state= 1\n"); in ab8500_charger_usb_link_status_work()
2339 /*Stop charger detection*/ in ab8500_charger_usb_link_status_work()
2373 /* No valid charger type detected */ in ab8500_charger_usb_link_status_work()
2382 "Potential Legacy Charger device. " in ab8500_charger_usb_link_status_work()
2470 * Work queue function for checking the USB charger Not OK status
2565 * ab8500_charger_mainchunplugdet_handler() - main charger unplugged
2575 dev_dbg(di->dev, "Main charger unplugged\n"); in ab8500_charger_mainchunplugdet_handler()
2586 * ab8500_charger_mainchplugdet_handler() - main charger plugged
2596 dev_dbg(di->dev, "Main charger plugged\n"); in ab8500_charger_mainchplugdet_handler()
2610 * ab8500_charger_mainextchnotok_handler() - main charger not ok
2620 dev_dbg(di->dev, "Main charger not ok\n"); in ab8500_charger_mainextchnotok_handler()
2631 * ab8500_charger_mainchthprotr_handler() - Die temp is above main charger
2643 "Die temp above Main charger thermal protection threshold\n"); in ab8500_charger_mainchthprotr_handler()
2650 * ab8500_charger_mainchthprotf_handler() - Die temp is below main charger
2662 "Die temp ok for Main charger thermal protection threshold\n"); in ab8500_charger_mainchthprotf_handler()
2770 * ab8500_charger_usbchthprotr_handler() - Die temp is above usb charger
2782 "Die temp above USB charger thermal protection threshold\n"); in ab8500_charger_usbchthprotr_handler()
2789 * ab8500_charger_usbchthprotf_handler() - Die temp is below usb charger
2801 "Die temp ok for USB charger thermal protection threshold\n"); in ab8500_charger_usbchthprotf_handler()
2808 * ab8500_charger_usbchargernotokr_handler() - USB charger not ok detected
2818 dev_dbg(di->dev, "Not allowed USB charger detected\n"); in ab8500_charger_usbchargernotokr_handler()
2825 * ab8500_charger_chwdexp_handler() - Charger watchdog expired
2835 dev_dbg(di->dev, "Charger watchdog expired\n"); in ab8500_charger_chwdexp_handler()
2838 * The charger that was online when the watchdog expired in ab8500_charger_chwdexp_handler()
2864 dev_dbg(di->dev, "VBUS charger drop ended\n"); in ab8500_charger_vbuschdropend_handler()
2948 * for the AC charger in ab8500_charger_ac_get_property()
3016 * for the USB charger in ab8500_charger_usb_get_property()
3030 * due to too high output current from the USB charger in ab8500_charger_usb_get_property()
3044 * ab8500_charger_init_hw_registers() - Set up charger related registers
3047 * Set up charger OVV, watchdog and maximum voltage registers as well as
3054 /* Setup maximum charger current and voltage for ABB cut2.0 */ in ab8500_charger_init_hw_registers()
3143 dev_err(di->dev, "failed to set charger watchdog timeout\n"); in ab8500_charger_init_hw_registers()
3176 * ab8500 charger driver interrupts and their respective isr
3213 /* TODO: State is fabricate here. See if charger really needs USB in ab8500_charger_usb_notifier_call()
3252 * logic. That means we have to continuously kick the charger in ab8500_charger_resume()
3253 * watchdog even when no charger is connected. This is only in ab8500_charger_resume()
3254 * valid once the AC charger has been enabled. This is in ab8500_charger_resume()
3256 * watchdog have to be kicked by the charger driver in ab8500_charger_resume()
3257 * when the AC charger is disabled in ab8500_charger_resume()
3335 /* Create a work queue for the charger */ in ab8500_charger_bind()
3435 "failed to get ADC main charger voltage\n"); in ab8500_charger_probe()
3441 "failed to get ADC main charger current\n"); in ab8500_charger_probe()
3448 "failed to get ADC USB charger voltage\n"); in ab8500_charger_probe()
3454 "failed to get ADC USB charger current\n"); in ab8500_charger_probe()
3460 * is a charger connected to avoid erroneous BTEMP_HIGH/LOW in ab8500_charger_probe()
3520 * AB8505, register an AC charger. in ab8500_charger_probe()
3555 * logic. That means we have to continuously kick the charger in ab8500_charger_probe()
3556 * watchdog even when no charger is connected. This is only in ab8500_charger_probe()
3557 * valid once the AC charger has been enabled. This is in ab8500_charger_probe()
3559 * watchdog have to be kicked by the charger driver in ab8500_charger_probe()
3560 * when the AC charger is disabled in ab8500_charger_probe()
3577 /* Init work for charger detection */ in ab8500_charger_probe()
3598 /* Register AC charger class */ in ab8500_charger_probe()
3604 dev_err(dev, "failed to register AC charger\n"); in ab8500_charger_probe()
3609 /* Register USB charger class */ in ab8500_charger_probe()
3614 dev_err(dev, "failed to register USB charger\n"); in ab8500_charger_probe()
3627 /* Identify the connected charger types during startup */ in ab8500_charger_probe()
3707 { .compatible = "stericsson,ab8500-charger", },
3716 .name = "ab8500-charger",
3753 MODULE_ALIAS("platform:ab8500-charger");
3754 MODULE_DESCRIPTION("AB8500 charger management driver");