1 // SPDX-License-Identifier: GPL-2.0-only
2 /* Copyright (c) 2010-2011, Code Aurora Forum. All rights reserved.
16 #define PON_CNTL_1 0x1C
18 #define PON_CNTL_TRIG_DELAY_MASK (0x7)
19 #define PON_CNTL_1_PULL_UP_EN			0xe0
20 #define PON_CNTL_1_USB_PWR_EN			0x10
21 #define PON_CNTL_1_WD_EN_RESET			0x08
23 #define PM8058_SLEEP_CTRL			0x02b
24 #define PM8921_SLEEP_CTRL			0x10a
26 #define SLEEP_CTRL_SMPL_EN_RESET		0x04
29 #define REG_PM8058_VREG_EN_MSM			0x018
30 #define REG_PM8058_VREG_EN_GRP_5_4		0x1c8
33 #define PM8058_S0_CTRL				0x004
34 #define PM8058_S1_CTRL				0x005
35 #define PM8058_S3_CTRL				0x111
36 #define PM8058_L21_CTRL				0x120
37 #define PM8058_L22_CTRL				0x121
39 #define PM8058_REGULATOR_ENABLE_MASK		0x80
40 #define PM8058_REGULATOR_ENABLE			0x80
41 #define PM8058_REGULATOR_DISABLE		0x00
42 #define PM8058_REGULATOR_PULL_DOWN_MASK		0x40
43 #define PM8058_REGULATOR_PULL_DOWN_EN		0x40
46 #define PM8058_SMPS_LEGACY_VREF_SEL		0x20
47 #define PM8058_SMPS_LEGACY_VPROG_MASK		0x1f
48 #define PM8058_SMPS_ADVANCED_BAND_MASK		0xC0
50 #define PM8058_SMPS_ADVANCED_VPROG_MASK		0x3f
53 #define PM8058_S0_TEST2				0x084
54 #define PM8058_S1_TEST2				0x085
55 #define PM8058_S3_TEST2				0x11a
57 #define PM8058_REGULATOR_BANK_WRITE		0x80
58 #define PM8058_REGULATOR_BANK_MASK		0x70
63 #define PM8058_SMPS_LEGACY_VLOW_SEL		0x01
66 #define PM8058_SMPS_ADVANCED_MODE_MASK		0x02
67 #define PM8058_SMPS_ADVANCED_MODE		0x02
68 #define PM8058_SMPS_LEGACY_MODE			0x00
71  * struct pmic8xxx_pwrkey - pmic8xxx pwrkey information
96 	input_report_key(pwr, KEY_POWER, 0);  in pwrkey_release_irq()
104 	struct pmic8xxx_pwrkey *pwrkey = dev_get_drvdata(dev);  in pmic8xxx_pwrkey_suspend()  local
107 		enable_irq_wake(pwrkey->key_press_irq);  in pmic8xxx_pwrkey_suspend()
109 	return 0;  in pmic8xxx_pwrkey_suspend()
114 	struct pmic8xxx_pwrkey *pwrkey = dev_get_drvdata(dev);  in pmic8xxx_pwrkey_resume()  local
117 		disable_irq_wake(pwrkey->key_press_irq);  in pmic8xxx_pwrkey_resume()
119 	return 0;  in pmic8xxx_pwrkey_resume()
127 	struct pmic8xxx_pwrkey *pwrkey = platform_get_drvdata(pdev);  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()
149 	regmap_update_bits(pwrkey->regmap, PON_CNTL_1, mask, val);  in pmic8xxx_pwrkey_shutdown()
187 			vref_sel = 0;  in pm8058_disable_smps_locally_set_pull_down()
188 			vlow_sel = 0;  in pm8058_disable_smps_locally_set_pull_down()
192 			vlow_sel = 0;  in pm8058_disable_smps_locally_set_pull_down()
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()
287 		/* Disable SMPS's 0,1,3 locally and set pulldown enable bits. */  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()
307 	error = regmap_update_bits(regmap, PM8058_L22_CTRL, 0xbf, 0x93);  in pm8058_pwrkey_shutdown()
313 	val = 0;  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()
323 	u8 val = 0;  in pm8921_pwrkey_shutdown()
334 	int key_release_irq = platform_get_irq(pdev, 0);  in pmic8xxx_pwrkey_probe()
340 	struct pmic8xxx_pwrkey *pwrkey;  in pmic8xxx_pwrkey_probe()  local
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()
362 	if (!pwrkey)  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()
384 	if (err < 0) {  in pmic8xxx_pwrkey_probe()
385 		dev_err(&pdev->dev, "failed reading PON_CNTL_1 err=%d\n", err);  in pmic8xxx_pwrkey_probe()
397 	if (err < 0) {  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()
426 	platform_set_drvdata(pdev, pwrkey);  in pmic8xxx_pwrkey_probe()
427 	device_init_wakeup(&pdev->dev, 1);  in pmic8xxx_pwrkey_probe()
429 	return 0;  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",