1 /* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
41 /* Regulator control registers for shutdown/reset */
61 /* Buck TEST2 registers for shutdown/reset */
80  * struct pmic8xxx_pwrkey - pmic8xxx pwrkey information
116 		enable_irq_wake(pwrkey->key_press_irq);  in pmic8xxx_pwrkey_suspend()
126 		disable_irq_wake(pwrkey->key_press_irq);  in pmic8xxx_pwrkey_resume()
138 	u8 mask, val;  in pmic8xxx_pwrkey_shutdown()  local
139 	bool reset = system_state == SYSTEM_RESTART;  in pmic8xxx_pwrkey_shutdown()  local
141 	if (pwrkey->shutdown_fn) {  in pmic8xxx_pwrkey_shutdown()
142 		error = pwrkey->shutdown_fn(pwrkey, reset);  in pmic8xxx_pwrkey_shutdown()
148 	 * Select action to perform (reset or shutdown) when PS_HOLD goes low.  in pmic8xxx_pwrkey_shutdown()
152 	mask = PON_CNTL_1_PULL_UP_EN | PON_CNTL_1_USB_PWR_EN;  in pmic8xxx_pwrkey_shutdown()
153 	mask |= PON_CNTL_1_WD_EN_RESET;  in pmic8xxx_pwrkey_shutdown()
154 	val = mask;  in pmic8xxx_pwrkey_shutdown()
155 	if (!reset)  in pmic8xxx_pwrkey_shutdown()
158 	regmap_update_bits(pwrkey->regmap, PON_CNTL_1, mask, val);  in pmic8xxx_pwrkey_shutdown()
209 			return -EPERM;  in pm8058_disable_smps_locally_set_pull_down()
288 static int pm8058_pwrkey_shutdown(struct pmic8xxx_pwrkey *pwrkey, bool reset)  in pm8058_pwrkey_shutdown()  argument
291 	struct regmap *regmap = pwrkey->regmap;  in pm8058_pwrkey_shutdown()
292 	u8 mask, val;  in pm8058_pwrkey_shutdown()  local
295 	if (!reset) {  in pm8058_pwrkey_shutdown()
313 	 * Fix-up: Set regulator LDO22 to 1.225 V in high power mode. Leave its  in pm8058_pwrkey_shutdown()
314 	 * pull-down state intact. This ensures a safe shutdown.  in pm8058_pwrkey_shutdown()
321 	mask = SLEEP_CTRL_SMPL_EN_RESET;  in pm8058_pwrkey_shutdown()
323 	if (reset)  in pm8058_pwrkey_shutdown()
324 		val = mask;  in pm8058_pwrkey_shutdown()
325 	return regmap_update_bits(regmap, PM8058_SLEEP_CTRL, mask, val);  in pm8058_pwrkey_shutdown()
328 static int pm8921_pwrkey_shutdown(struct pmic8xxx_pwrkey *pwrkey, bool reset)  in pm8921_pwrkey_shutdown()  argument
330 	struct regmap *regmap = pwrkey->regmap;  in pm8921_pwrkey_shutdown()
331 	u8 mask = SLEEP_CTRL_SMPL_EN_RESET;  in pm8921_pwrkey_shutdown()  local
335 	if (reset)  in pm8921_pwrkey_shutdown()
336 		val = mask;  in pm8921_pwrkey_shutdown()
337 	return regmap_update_bits(regmap, PM8921_SLEEP_CTRL, mask, val);  in pm8921_pwrkey_shutdown()
353 	if (of_property_read_u32(pdev->dev.of_node, "debounce", &kpd_delay))  in pmic8xxx_pwrkey_probe()
358 		dev_err(&pdev->dev, "invalid power key trigger delay\n");  in pmic8xxx_pwrkey_probe()
359 		return -EINVAL;  in pmic8xxx_pwrkey_probe()
362 	pull_up = of_property_read_bool(pdev->dev.of_node, "pull-up");  in pmic8xxx_pwrkey_probe()
364 	regmap = dev_get_regmap(pdev->dev.parent, NULL);  in pmic8xxx_pwrkey_probe()
366 		dev_err(&pdev->dev, "failed to locate regmap for the device\n");  in pmic8xxx_pwrkey_probe()
367 		return -ENODEV;  in pmic8xxx_pwrkey_probe()
370 	pwrkey = devm_kzalloc(&pdev->dev, sizeof(*pwrkey), GFP_KERNEL);  in pmic8xxx_pwrkey_probe()
372 		return -ENOMEM;  in pmic8xxx_pwrkey_probe()
374 	pwrkey->shutdown_fn = of_device_get_match_data(&pdev->dev);  in pmic8xxx_pwrkey_probe()
375 	pwrkey->regmap = regmap;  in pmic8xxx_pwrkey_probe()
376 	pwrkey->key_press_irq = key_press_irq;  in pmic8xxx_pwrkey_probe()
378 	pwr = devm_input_allocate_device(&pdev->dev);  in pmic8xxx_pwrkey_probe()
380 		dev_dbg(&pdev->dev, "Can't allocate power button\n");  in pmic8xxx_pwrkey_probe()
381 		return -ENOMEM;  in pmic8xxx_pwrkey_probe()
386 	pwr->name = "pmic8xxx_pwrkey";  in pmic8xxx_pwrkey_probe()
387 	pwr->phys = "pmic8xxx_pwrkey/input0";  in pmic8xxx_pwrkey_probe()
394 		dev_err(&pdev->dev, "failed reading PON_CNTL_1 err=%d\n", err);  in pmic8xxx_pwrkey_probe()
407 		dev_err(&pdev->dev, "failed writing PON_CNTL_1 err=%d\n", err);  in pmic8xxx_pwrkey_probe()
411 	err = devm_request_irq(&pdev->dev, key_press_irq, pwrkey_press_irq,  in pmic8xxx_pwrkey_probe()
415 		dev_err(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n",  in pmic8xxx_pwrkey_probe()
420 	err = devm_request_irq(&pdev->dev, key_release_irq, pwrkey_release_irq,  in pmic8xxx_pwrkey_probe()
424 		dev_err(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n",  in pmic8xxx_pwrkey_probe()
431 		dev_err(&pdev->dev, "Can't register power key: %d\n", err);  in pmic8xxx_pwrkey_probe()
436 	device_init_wakeup(&pdev->dev, 1);  in pmic8xxx_pwrkey_probe()
442 	{ .compatible = "qcom,pm8058-pwrkey", .data = &pm8058_pwrkey_shutdown },
443 	{ .compatible = "qcom,pm8921-pwrkey", .data = &pm8921_pwrkey_shutdown },
452 		.name	= "pm8xxx-pwrkey",