2 // Battery charger driver for TI's tps65217
8  * Battery charger driver for TI's tps65217
44 static int tps65217_config_charger(struct tps65217_charger *charger)  in tps65217_config_charger()  argument
53 	 * is not recommended to do so. In sleep mode, the charger continues  in tps65217_config_charger()
55 	 * values. Therefore, the charger would get the wrong temperature  in tps65217_config_charger()
66 	ret = tps65217_clear_bits(charger->tps, TPS65217_REG_CHGCONFIG1,  in tps65217_config_charger()
70 		dev_err(charger->dev,  in tps65217_config_charger()
78 static int tps65217_enable_charging(struct tps65217_charger *charger)  in tps65217_enable_charging()  argument
82 	/* charger already enabled */  in tps65217_enable_charging()
83 	if (charger->online)  in tps65217_enable_charging()
86 	dev_dbg(charger->dev, "%s: enable charging\n", __func__);  in tps65217_enable_charging()
87 	ret = tps65217_set_bits(charger->tps, TPS65217_REG_CHGCONFIG1,  in tps65217_enable_charging()
92 		dev_err(charger->dev,  in tps65217_enable_charging()
98 	charger->online = 1;  in tps65217_enable_charging()
107 	struct tps65217_charger *charger = power_supply_get_drvdata(psy);  in tps65217_charger_get_property()  local
110 		val->intval = charger->online;  in tps65217_charger_get_property()
119 	struct tps65217_charger *charger = dev;  in tps65217_charger_irq()  local
121 	charger->prev_online = charger->online;  in tps65217_charger_irq()
123 	ret = tps65217_reg_read(charger->tps, TPS65217_REG_STATUS, &val);  in tps65217_charger_irq()
125 		dev_err(charger->dev, "%s: Error in reading reg 0x%x\n",  in tps65217_charger_irq()
130 	dev_dbg(charger->dev, "%s: 0x%x\n", __func__, val);  in tps65217_charger_irq()
132 	/* check for charger status bit */  in tps65217_charger_irq()
134 		ret = tps65217_enable_charging(charger);  in tps65217_charger_irq()
136 			dev_err(charger->dev,  in tps65217_charger_irq()
137 				"failed to enable charger: %d\n", ret);  in tps65217_charger_irq()
141 		charger->online = 0;  in tps65217_charger_irq()
144 	if (charger->prev_online != charger->online)  in tps65217_charger_irq()
145 		power_supply_changed(charger->psy);  in tps65217_charger_irq()
147 	ret = tps65217_reg_read(charger->tps, TPS65217_REG_CHGCONFIG0, &val);  in tps65217_charger_irq()
149 		dev_err(charger->dev, "%s: Error in reading reg 0x%x\n",  in tps65217_charger_irq()
155 		dev_dbg(charger->dev, "%s: charger is charging\n", __func__);  in tps65217_charger_irq()
157 		dev_dbg(charger->dev,  in tps65217_charger_irq()
158 			"%s: charger is NOT charging\n", __func__);  in tps65217_charger_irq()
176 	.name			= "tps65217-charger",
186 	struct tps65217_charger *charger;  in tps65217_charger_probe()  local
193 	charger = devm_kzalloc(&pdev->dev, sizeof(*charger), GFP_KERNEL);  in tps65217_charger_probe()
194 	if (!charger)  in tps65217_charger_probe()
197 	platform_set_drvdata(pdev, charger);  in tps65217_charger_probe()
198 	charger->tps = tps;  in tps65217_charger_probe()
199 	charger->dev = &pdev->dev;  in tps65217_charger_probe()
202 	cfg.drv_data = charger;  in tps65217_charger_probe()
204 	charger->psy = devm_power_supply_register(&pdev->dev,  in tps65217_charger_probe()
207 	if (IS_ERR(charger->psy)) {  in tps65217_charger_probe()
209 		return PTR_ERR(charger->psy);  in tps65217_charger_probe()
215 	ret = tps65217_config_charger(charger);  in tps65217_charger_probe()
217 		dev_err(charger->dev, "charger config failed, err %d\n", ret);  in tps65217_charger_probe()
224 					charger, "ktps65217charger");  in tps65217_charger_probe()
227 			dev_err(charger->dev,  in tps65217_charger_probe()
232 		charger->poll_task = poll_task;  in tps65217_charger_probe()
236 	/* Create IRQ threads for charger interrupts */  in tps65217_charger_probe()
240 						IRQF_SHARED, "tps65217-charger",  in tps65217_charger_probe()
241 						charger);  in tps65217_charger_probe()
243 			dev_err(charger->dev,  in tps65217_charger_probe()
250 		tps65217_charger_irq(-1, charger);  in tps65217_charger_probe()
258 	struct tps65217_charger *charger = platform_get_drvdata(pdev);  in tps65217_charger_remove()  local
260 	if (charger->poll_task)  in tps65217_charger_remove()
261 		kthread_stop(charger->poll_task);  in tps65217_charger_remove()
265 	{ .compatible = "ti,tps65217-charger", },
274 		.name	= "tps65217-charger",
283 MODULE_DESCRIPTION("TPS65217 battery charger driver");