1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
32 /* Regulator control registers for shutdown/reset */
52 /* Buck TEST2 registers for shutdown/reset */
71  * struct pmic8xxx_pwrkey - pmic8xxx pwrkey information
107 		enable_irq_wake(pwrkey->key_press_irq);  in pmic8xxx_pwrkey_suspend()
117 		disable_irq_wake(pwrkey->key_press_irq);  in pmic8xxx_pwrkey_resume()
129 	u8 mask, val;  in pmic8xxx_pwrkey_shutdown()  local
130 	bool reset = system_state == SYSTEM_RESTART;  in pmic8xxx_pwrkey_shutdown()  local
132 	if (pwrkey->shutdown_fn) {  in pmic8xxx_pwrkey_shutdown()
133 		error = pwrkey->shutdown_fn(pwrkey, reset);  in pmic8xxx_pwrkey_shutdown()
139 	 * Select action to perform (reset or shutdown) when PS_HOLD goes low.  in pmic8xxx_pwrkey_shutdown()
143 	mask = PON_CNTL_1_PULL_UP_EN | PON_CNTL_1_USB_PWR_EN;  in pmic8xxx_pwrkey_shutdown()
144 	mask |= PON_CNTL_1_WD_EN_RESET;  in pmic8xxx_pwrkey_shutdown()
145 	val = mask;  in pmic8xxx_pwrkey_shutdown()
146 	if (!reset)  in pmic8xxx_pwrkey_shutdown()
149 	regmap_update_bits(pwrkey->regmap, PON_CNTL_1, mask, val);  in pmic8xxx_pwrkey_shutdown()
200 			return -EPERM;  in pm8058_disable_smps_locally_set_pull_down()
279 static int pm8058_pwrkey_shutdown(struct pmic8xxx_pwrkey *pwrkey, bool reset)  in pm8058_pwrkey_shutdown()  argument
282 	struct regmap *regmap = pwrkey->regmap;  in pm8058_pwrkey_shutdown()
283 	u8 mask, val;  in pm8058_pwrkey_shutdown()  local
286 	if (!reset) {  in pm8058_pwrkey_shutdown()
304 	 * Fix-up: Set regulator LDO22 to 1.225 V in high power mode. Leave its  in pm8058_pwrkey_shutdown()
305 	 * pull-down state intact. This ensures a safe shutdown.  in pm8058_pwrkey_shutdown()
312 	mask = SLEEP_CTRL_SMPL_EN_RESET;  in pm8058_pwrkey_shutdown()
314 	if (reset)  in pm8058_pwrkey_shutdown()
315 		val = mask;  in pm8058_pwrkey_shutdown()
316 	return regmap_update_bits(regmap, PM8058_SLEEP_CTRL, mask, val);  in pm8058_pwrkey_shutdown()
319 static int pm8921_pwrkey_shutdown(struct pmic8xxx_pwrkey *pwrkey, bool reset)  in pm8921_pwrkey_shutdown()  argument
321 	struct regmap *regmap = pwrkey->regmap;  in pm8921_pwrkey_shutdown()
322 	u8 mask = SLEEP_CTRL_SMPL_EN_RESET;  in pm8921_pwrkey_shutdown()  local
326 	if (reset)  in pm8921_pwrkey_shutdown()
327 		val = mask;  in pm8921_pwrkey_shutdown()
328 	return regmap_update_bits(regmap, PM8921_SLEEP_CTRL, mask, val);  in pm8921_pwrkey_shutdown()
344 	if (of_property_read_u32(pdev->dev.of_node, "debounce", &kpd_delay))  in pmic8xxx_pwrkey_probe()
349 		dev_err(&pdev->dev, "invalid power key trigger delay\n");  in pmic8xxx_pwrkey_probe()
350 		return -EINVAL;  in pmic8xxx_pwrkey_probe()
353 	pull_up = of_property_read_bool(pdev->dev.of_node, "pull-up");  in pmic8xxx_pwrkey_probe()
355 	regmap = dev_get_regmap(pdev->dev.parent, NULL);  in pmic8xxx_pwrkey_probe()
357 		dev_err(&pdev->dev, "failed to locate regmap for the device\n");  in pmic8xxx_pwrkey_probe()
358 		return -ENODEV;  in pmic8xxx_pwrkey_probe()
361 	pwrkey = devm_kzalloc(&pdev->dev, sizeof(*pwrkey), GFP_KERNEL);  in pmic8xxx_pwrkey_probe()
363 		return -ENOMEM;  in pmic8xxx_pwrkey_probe()
365 	pwrkey->shutdown_fn = of_device_get_match_data(&pdev->dev);  in pmic8xxx_pwrkey_probe()
366 	pwrkey->regmap = regmap;  in pmic8xxx_pwrkey_probe()
367 	pwrkey->key_press_irq = key_press_irq;  in pmic8xxx_pwrkey_probe()
369 	pwr = devm_input_allocate_device(&pdev->dev);  in pmic8xxx_pwrkey_probe()
371 		dev_dbg(&pdev->dev, "Can't allocate power button\n");  in pmic8xxx_pwrkey_probe()
372 		return -ENOMEM;  in pmic8xxx_pwrkey_probe()
377 	pwr->name = "pmic8xxx_pwrkey";  in pmic8xxx_pwrkey_probe()
378 	pwr->phys = "pmic8xxx_pwrkey/input0";  in pmic8xxx_pwrkey_probe()
385 		dev_err(&pdev->dev, "failed reading PON_CNTL_1 err=%d\n", err);  in pmic8xxx_pwrkey_probe()
398 		dev_err(&pdev->dev, "failed writing PON_CNTL_1 err=%d\n", err);  in pmic8xxx_pwrkey_probe()
402 	err = devm_request_irq(&pdev->dev, key_press_irq, pwrkey_press_irq,  in pmic8xxx_pwrkey_probe()
406 		dev_err(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n",  in pmic8xxx_pwrkey_probe()
411 	err = devm_request_irq(&pdev->dev, key_release_irq, pwrkey_release_irq,  in pmic8xxx_pwrkey_probe()
415 		dev_err(&pdev->dev, "Can't get %d IRQ for pwrkey: %d\n",  in pmic8xxx_pwrkey_probe()
422 		dev_err(&pdev->dev, "Can't register power key: %d\n", err);  in pmic8xxx_pwrkey_probe()
427 	device_init_wakeup(&pdev->dev, 1);  in pmic8xxx_pwrkey_probe()
433 	{ .compatible = "qcom,pm8058-pwrkey", .data = &pm8058_pwrkey_shutdown },
434 	{ .compatible = "qcom,pm8921-pwrkey", .data = &pm8921_pwrkey_shutdown },
443 		.name	= "pm8xxx-pwrkey",