162306a36Sopenharmony_ci/* 262306a36Sopenharmony_ci * axp20x power button driver. 362306a36Sopenharmony_ci * 462306a36Sopenharmony_ci * Copyright (C) 2013 Carlo Caione <carlo@caione.org> 562306a36Sopenharmony_ci * 662306a36Sopenharmony_ci * This file is subject to the terms and conditions of the GNU General 762306a36Sopenharmony_ci * Public License. See the file "COPYING" in the main directory of this 862306a36Sopenharmony_ci * archive for more details. 962306a36Sopenharmony_ci * 1062306a36Sopenharmony_ci * This program is distributed in the hope that it will be useful, 1162306a36Sopenharmony_ci * but WITHOUT ANY WARRANTY; without even the implied warranty of 1262306a36Sopenharmony_ci * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1362306a36Sopenharmony_ci * GNU General Public License for more details. 1462306a36Sopenharmony_ci */ 1562306a36Sopenharmony_ci 1662306a36Sopenharmony_ci#include <linux/acpi.h> 1762306a36Sopenharmony_ci#include <linux/errno.h> 1862306a36Sopenharmony_ci#include <linux/irq.h> 1962306a36Sopenharmony_ci#include <linux/init.h> 2062306a36Sopenharmony_ci#include <linux/input.h> 2162306a36Sopenharmony_ci#include <linux/interrupt.h> 2262306a36Sopenharmony_ci#include <linux/kernel.h> 2362306a36Sopenharmony_ci#include <linux/mfd/axp20x.h> 2462306a36Sopenharmony_ci#include <linux/module.h> 2562306a36Sopenharmony_ci#include <linux/platform_data/x86/soc.h> 2662306a36Sopenharmony_ci#include <linux/platform_device.h> 2762306a36Sopenharmony_ci#include <linux/regmap.h> 2862306a36Sopenharmony_ci#include <linux/slab.h> 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ci#define AXP20X_PEK_STARTUP_MASK (0xc0) 3162306a36Sopenharmony_ci#define AXP20X_PEK_SHUTDOWN_MASK (0x03) 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_cistruct axp20x_info { 3462306a36Sopenharmony_ci const struct axp20x_time *startup_time; 3562306a36Sopenharmony_ci unsigned int startup_mask; 3662306a36Sopenharmony_ci const struct axp20x_time *shutdown_time; 3762306a36Sopenharmony_ci unsigned int shutdown_mask; 3862306a36Sopenharmony_ci}; 3962306a36Sopenharmony_ci 4062306a36Sopenharmony_cistruct axp20x_pek { 4162306a36Sopenharmony_ci struct axp20x_dev *axp20x; 4262306a36Sopenharmony_ci struct input_dev *input; 4362306a36Sopenharmony_ci struct axp20x_info *info; 4462306a36Sopenharmony_ci int irq_dbr; 4562306a36Sopenharmony_ci int irq_dbf; 4662306a36Sopenharmony_ci}; 4762306a36Sopenharmony_ci 4862306a36Sopenharmony_cistruct axp20x_time { 4962306a36Sopenharmony_ci unsigned int time; 5062306a36Sopenharmony_ci unsigned int idx; 5162306a36Sopenharmony_ci}; 5262306a36Sopenharmony_ci 5362306a36Sopenharmony_cistatic const struct axp20x_time startup_time[] = { 5462306a36Sopenharmony_ci { .time = 128, .idx = 0 }, 5562306a36Sopenharmony_ci { .time = 1000, .idx = 2 }, 5662306a36Sopenharmony_ci { .time = 3000, .idx = 1 }, 5762306a36Sopenharmony_ci { .time = 2000, .idx = 3 }, 5862306a36Sopenharmony_ci}; 5962306a36Sopenharmony_ci 6062306a36Sopenharmony_cistatic const struct axp20x_time axp221_startup_time[] = { 6162306a36Sopenharmony_ci { .time = 128, .idx = 0 }, 6262306a36Sopenharmony_ci { .time = 1000, .idx = 1 }, 6362306a36Sopenharmony_ci { .time = 2000, .idx = 2 }, 6462306a36Sopenharmony_ci { .time = 3000, .idx = 3 }, 6562306a36Sopenharmony_ci}; 6662306a36Sopenharmony_ci 6762306a36Sopenharmony_cistatic const struct axp20x_time shutdown_time[] = { 6862306a36Sopenharmony_ci { .time = 4000, .idx = 0 }, 6962306a36Sopenharmony_ci { .time = 6000, .idx = 1 }, 7062306a36Sopenharmony_ci { .time = 8000, .idx = 2 }, 7162306a36Sopenharmony_ci { .time = 10000, .idx = 3 }, 7262306a36Sopenharmony_ci}; 7362306a36Sopenharmony_ci 7462306a36Sopenharmony_cistatic const struct axp20x_info axp20x_info = { 7562306a36Sopenharmony_ci .startup_time = startup_time, 7662306a36Sopenharmony_ci .startup_mask = AXP20X_PEK_STARTUP_MASK, 7762306a36Sopenharmony_ci .shutdown_time = shutdown_time, 7862306a36Sopenharmony_ci .shutdown_mask = AXP20X_PEK_SHUTDOWN_MASK, 7962306a36Sopenharmony_ci}; 8062306a36Sopenharmony_ci 8162306a36Sopenharmony_cistatic const struct axp20x_info axp221_info = { 8262306a36Sopenharmony_ci .startup_time = axp221_startup_time, 8362306a36Sopenharmony_ci .startup_mask = AXP20X_PEK_STARTUP_MASK, 8462306a36Sopenharmony_ci .shutdown_time = shutdown_time, 8562306a36Sopenharmony_ci .shutdown_mask = AXP20X_PEK_SHUTDOWN_MASK, 8662306a36Sopenharmony_ci}; 8762306a36Sopenharmony_ci 8862306a36Sopenharmony_cistatic ssize_t axp20x_show_attr(struct device *dev, 8962306a36Sopenharmony_ci const struct axp20x_time *time, 9062306a36Sopenharmony_ci unsigned int mask, char *buf) 9162306a36Sopenharmony_ci{ 9262306a36Sopenharmony_ci struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev); 9362306a36Sopenharmony_ci unsigned int val; 9462306a36Sopenharmony_ci int ret, i; 9562306a36Sopenharmony_ci 9662306a36Sopenharmony_ci ret = regmap_read(axp20x_pek->axp20x->regmap, AXP20X_PEK_KEY, &val); 9762306a36Sopenharmony_ci if (ret != 0) 9862306a36Sopenharmony_ci return ret; 9962306a36Sopenharmony_ci 10062306a36Sopenharmony_ci val &= mask; 10162306a36Sopenharmony_ci val >>= ffs(mask) - 1; 10262306a36Sopenharmony_ci 10362306a36Sopenharmony_ci for (i = 0; i < 4; i++) 10462306a36Sopenharmony_ci if (val == time[i].idx) 10562306a36Sopenharmony_ci val = time[i].time; 10662306a36Sopenharmony_ci 10762306a36Sopenharmony_ci return sprintf(buf, "%u\n", val); 10862306a36Sopenharmony_ci} 10962306a36Sopenharmony_ci 11062306a36Sopenharmony_cistatic ssize_t axp20x_show_attr_startup(struct device *dev, 11162306a36Sopenharmony_ci struct device_attribute *attr, 11262306a36Sopenharmony_ci char *buf) 11362306a36Sopenharmony_ci{ 11462306a36Sopenharmony_ci struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev); 11562306a36Sopenharmony_ci 11662306a36Sopenharmony_ci return axp20x_show_attr(dev, axp20x_pek->info->startup_time, 11762306a36Sopenharmony_ci axp20x_pek->info->startup_mask, buf); 11862306a36Sopenharmony_ci} 11962306a36Sopenharmony_ci 12062306a36Sopenharmony_cistatic ssize_t axp20x_show_attr_shutdown(struct device *dev, 12162306a36Sopenharmony_ci struct device_attribute *attr, 12262306a36Sopenharmony_ci char *buf) 12362306a36Sopenharmony_ci{ 12462306a36Sopenharmony_ci struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev); 12562306a36Sopenharmony_ci 12662306a36Sopenharmony_ci return axp20x_show_attr(dev, axp20x_pek->info->shutdown_time, 12762306a36Sopenharmony_ci axp20x_pek->info->shutdown_mask, buf); 12862306a36Sopenharmony_ci} 12962306a36Sopenharmony_ci 13062306a36Sopenharmony_cistatic ssize_t axp20x_store_attr(struct device *dev, 13162306a36Sopenharmony_ci const struct axp20x_time *time, 13262306a36Sopenharmony_ci unsigned int mask, const char *buf, 13362306a36Sopenharmony_ci size_t count) 13462306a36Sopenharmony_ci{ 13562306a36Sopenharmony_ci struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev); 13662306a36Sopenharmony_ci char val_str[20]; 13762306a36Sopenharmony_ci size_t len; 13862306a36Sopenharmony_ci int ret, i; 13962306a36Sopenharmony_ci unsigned int val, idx = 0; 14062306a36Sopenharmony_ci unsigned int best_err = UINT_MAX; 14162306a36Sopenharmony_ci 14262306a36Sopenharmony_ci val_str[sizeof(val_str) - 1] = '\0'; 14362306a36Sopenharmony_ci strncpy(val_str, buf, sizeof(val_str) - 1); 14462306a36Sopenharmony_ci len = strlen(val_str); 14562306a36Sopenharmony_ci 14662306a36Sopenharmony_ci if (len && val_str[len - 1] == '\n') 14762306a36Sopenharmony_ci val_str[len - 1] = '\0'; 14862306a36Sopenharmony_ci 14962306a36Sopenharmony_ci ret = kstrtouint(val_str, 10, &val); 15062306a36Sopenharmony_ci if (ret) 15162306a36Sopenharmony_ci return ret; 15262306a36Sopenharmony_ci 15362306a36Sopenharmony_ci for (i = 3; i >= 0; i--) { 15462306a36Sopenharmony_ci unsigned int err; 15562306a36Sopenharmony_ci 15662306a36Sopenharmony_ci err = abs(time[i].time - val); 15762306a36Sopenharmony_ci if (err < best_err) { 15862306a36Sopenharmony_ci best_err = err; 15962306a36Sopenharmony_ci idx = time[i].idx; 16062306a36Sopenharmony_ci } 16162306a36Sopenharmony_ci 16262306a36Sopenharmony_ci if (!err) 16362306a36Sopenharmony_ci break; 16462306a36Sopenharmony_ci } 16562306a36Sopenharmony_ci 16662306a36Sopenharmony_ci idx <<= ffs(mask) - 1; 16762306a36Sopenharmony_ci ret = regmap_update_bits(axp20x_pek->axp20x->regmap, AXP20X_PEK_KEY, 16862306a36Sopenharmony_ci mask, idx); 16962306a36Sopenharmony_ci if (ret != 0) 17062306a36Sopenharmony_ci return -EINVAL; 17162306a36Sopenharmony_ci 17262306a36Sopenharmony_ci return count; 17362306a36Sopenharmony_ci} 17462306a36Sopenharmony_ci 17562306a36Sopenharmony_cistatic ssize_t axp20x_store_attr_startup(struct device *dev, 17662306a36Sopenharmony_ci struct device_attribute *attr, 17762306a36Sopenharmony_ci const char *buf, size_t count) 17862306a36Sopenharmony_ci{ 17962306a36Sopenharmony_ci struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev); 18062306a36Sopenharmony_ci 18162306a36Sopenharmony_ci return axp20x_store_attr(dev, axp20x_pek->info->startup_time, 18262306a36Sopenharmony_ci axp20x_pek->info->startup_mask, buf, count); 18362306a36Sopenharmony_ci} 18462306a36Sopenharmony_ci 18562306a36Sopenharmony_cistatic ssize_t axp20x_store_attr_shutdown(struct device *dev, 18662306a36Sopenharmony_ci struct device_attribute *attr, 18762306a36Sopenharmony_ci const char *buf, size_t count) 18862306a36Sopenharmony_ci{ 18962306a36Sopenharmony_ci struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev); 19062306a36Sopenharmony_ci 19162306a36Sopenharmony_ci return axp20x_store_attr(dev, axp20x_pek->info->shutdown_time, 19262306a36Sopenharmony_ci axp20x_pek->info->shutdown_mask, buf, count); 19362306a36Sopenharmony_ci} 19462306a36Sopenharmony_ci 19562306a36Sopenharmony_cistatic DEVICE_ATTR(startup, 0644, axp20x_show_attr_startup, 19662306a36Sopenharmony_ci axp20x_store_attr_startup); 19762306a36Sopenharmony_cistatic DEVICE_ATTR(shutdown, 0644, axp20x_show_attr_shutdown, 19862306a36Sopenharmony_ci axp20x_store_attr_shutdown); 19962306a36Sopenharmony_ci 20062306a36Sopenharmony_cistatic struct attribute *axp20x_attrs[] = { 20162306a36Sopenharmony_ci &dev_attr_startup.attr, 20262306a36Sopenharmony_ci &dev_attr_shutdown.attr, 20362306a36Sopenharmony_ci NULL, 20462306a36Sopenharmony_ci}; 20562306a36Sopenharmony_ciATTRIBUTE_GROUPS(axp20x); 20662306a36Sopenharmony_ci 20762306a36Sopenharmony_cistatic irqreturn_t axp20x_pek_irq(int irq, void *pwr) 20862306a36Sopenharmony_ci{ 20962306a36Sopenharmony_ci struct input_dev *idev = pwr; 21062306a36Sopenharmony_ci struct axp20x_pek *axp20x_pek = input_get_drvdata(idev); 21162306a36Sopenharmony_ci 21262306a36Sopenharmony_ci /* 21362306a36Sopenharmony_ci * The power-button is connected to ground so a falling edge (dbf) 21462306a36Sopenharmony_ci * means it is pressed. 21562306a36Sopenharmony_ci */ 21662306a36Sopenharmony_ci if (irq == axp20x_pek->irq_dbf) 21762306a36Sopenharmony_ci input_report_key(idev, KEY_POWER, true); 21862306a36Sopenharmony_ci else if (irq == axp20x_pek->irq_dbr) 21962306a36Sopenharmony_ci input_report_key(idev, KEY_POWER, false); 22062306a36Sopenharmony_ci 22162306a36Sopenharmony_ci input_sync(idev); 22262306a36Sopenharmony_ci 22362306a36Sopenharmony_ci return IRQ_HANDLED; 22462306a36Sopenharmony_ci} 22562306a36Sopenharmony_ci 22662306a36Sopenharmony_cistatic int axp20x_pek_probe_input_device(struct axp20x_pek *axp20x_pek, 22762306a36Sopenharmony_ci struct platform_device *pdev) 22862306a36Sopenharmony_ci{ 22962306a36Sopenharmony_ci struct axp20x_dev *axp20x = axp20x_pek->axp20x; 23062306a36Sopenharmony_ci struct input_dev *idev; 23162306a36Sopenharmony_ci int error; 23262306a36Sopenharmony_ci 23362306a36Sopenharmony_ci axp20x_pek->irq_dbr = platform_get_irq_byname(pdev, "PEK_DBR"); 23462306a36Sopenharmony_ci if (axp20x_pek->irq_dbr < 0) 23562306a36Sopenharmony_ci return axp20x_pek->irq_dbr; 23662306a36Sopenharmony_ci axp20x_pek->irq_dbr = regmap_irq_get_virq(axp20x->regmap_irqc, 23762306a36Sopenharmony_ci axp20x_pek->irq_dbr); 23862306a36Sopenharmony_ci 23962306a36Sopenharmony_ci axp20x_pek->irq_dbf = platform_get_irq_byname(pdev, "PEK_DBF"); 24062306a36Sopenharmony_ci if (axp20x_pek->irq_dbf < 0) 24162306a36Sopenharmony_ci return axp20x_pek->irq_dbf; 24262306a36Sopenharmony_ci axp20x_pek->irq_dbf = regmap_irq_get_virq(axp20x->regmap_irqc, 24362306a36Sopenharmony_ci axp20x_pek->irq_dbf); 24462306a36Sopenharmony_ci 24562306a36Sopenharmony_ci axp20x_pek->input = devm_input_allocate_device(&pdev->dev); 24662306a36Sopenharmony_ci if (!axp20x_pek->input) 24762306a36Sopenharmony_ci return -ENOMEM; 24862306a36Sopenharmony_ci 24962306a36Sopenharmony_ci idev = axp20x_pek->input; 25062306a36Sopenharmony_ci 25162306a36Sopenharmony_ci idev->name = "axp20x-pek"; 25262306a36Sopenharmony_ci idev->phys = "m1kbd/input2"; 25362306a36Sopenharmony_ci idev->dev.parent = &pdev->dev; 25462306a36Sopenharmony_ci 25562306a36Sopenharmony_ci input_set_capability(idev, EV_KEY, KEY_POWER); 25662306a36Sopenharmony_ci 25762306a36Sopenharmony_ci input_set_drvdata(idev, axp20x_pek); 25862306a36Sopenharmony_ci 25962306a36Sopenharmony_ci error = devm_request_any_context_irq(&pdev->dev, axp20x_pek->irq_dbr, 26062306a36Sopenharmony_ci axp20x_pek_irq, 0, 26162306a36Sopenharmony_ci "axp20x-pek-dbr", idev); 26262306a36Sopenharmony_ci if (error < 0) { 26362306a36Sopenharmony_ci dev_err(&pdev->dev, "Failed to request dbr IRQ#%d: %d\n", 26462306a36Sopenharmony_ci axp20x_pek->irq_dbr, error); 26562306a36Sopenharmony_ci return error; 26662306a36Sopenharmony_ci } 26762306a36Sopenharmony_ci 26862306a36Sopenharmony_ci error = devm_request_any_context_irq(&pdev->dev, axp20x_pek->irq_dbf, 26962306a36Sopenharmony_ci axp20x_pek_irq, 0, 27062306a36Sopenharmony_ci "axp20x-pek-dbf", idev); 27162306a36Sopenharmony_ci if (error < 0) { 27262306a36Sopenharmony_ci dev_err(&pdev->dev, "Failed to request dbf IRQ#%d: %d\n", 27362306a36Sopenharmony_ci axp20x_pek->irq_dbf, error); 27462306a36Sopenharmony_ci return error; 27562306a36Sopenharmony_ci } 27662306a36Sopenharmony_ci 27762306a36Sopenharmony_ci error = input_register_device(idev); 27862306a36Sopenharmony_ci if (error) { 27962306a36Sopenharmony_ci dev_err(&pdev->dev, "Can't register input device: %d\n", 28062306a36Sopenharmony_ci error); 28162306a36Sopenharmony_ci return error; 28262306a36Sopenharmony_ci } 28362306a36Sopenharmony_ci 28462306a36Sopenharmony_ci device_init_wakeup(&pdev->dev, true); 28562306a36Sopenharmony_ci 28662306a36Sopenharmony_ci return 0; 28762306a36Sopenharmony_ci} 28862306a36Sopenharmony_ci 28962306a36Sopenharmony_cistatic bool axp20x_pek_should_register_input(struct axp20x_pek *axp20x_pek) 29062306a36Sopenharmony_ci{ 29162306a36Sopenharmony_ci if (IS_ENABLED(CONFIG_INPUT_SOC_BUTTON_ARRAY) && 29262306a36Sopenharmony_ci axp20x_pek->axp20x->variant == AXP288_ID) { 29362306a36Sopenharmony_ci /* 29462306a36Sopenharmony_ci * On Cherry Trail platforms (hrv == 3), do not register the 29562306a36Sopenharmony_ci * input device if there is an "INTCFD9" or "ACPI0011" gpio 29662306a36Sopenharmony_ci * button ACPI device, as that handles the power button too, 29762306a36Sopenharmony_ci * and otherwise we end up reporting all presses twice. 29862306a36Sopenharmony_ci */ 29962306a36Sopenharmony_ci if (soc_intel_is_cht() && 30062306a36Sopenharmony_ci (acpi_dev_present("INTCFD9", NULL, -1) || 30162306a36Sopenharmony_ci acpi_dev_present("ACPI0011", NULL, -1))) 30262306a36Sopenharmony_ci return false; 30362306a36Sopenharmony_ci } 30462306a36Sopenharmony_ci 30562306a36Sopenharmony_ci return true; 30662306a36Sopenharmony_ci} 30762306a36Sopenharmony_ci 30862306a36Sopenharmony_cistatic int axp20x_pek_probe(struct platform_device *pdev) 30962306a36Sopenharmony_ci{ 31062306a36Sopenharmony_ci struct axp20x_pek *axp20x_pek; 31162306a36Sopenharmony_ci const struct platform_device_id *match = platform_get_device_id(pdev); 31262306a36Sopenharmony_ci int error; 31362306a36Sopenharmony_ci 31462306a36Sopenharmony_ci if (!match) { 31562306a36Sopenharmony_ci dev_err(&pdev->dev, "Failed to get platform_device_id\n"); 31662306a36Sopenharmony_ci return -EINVAL; 31762306a36Sopenharmony_ci } 31862306a36Sopenharmony_ci 31962306a36Sopenharmony_ci axp20x_pek = devm_kzalloc(&pdev->dev, sizeof(struct axp20x_pek), 32062306a36Sopenharmony_ci GFP_KERNEL); 32162306a36Sopenharmony_ci if (!axp20x_pek) 32262306a36Sopenharmony_ci return -ENOMEM; 32362306a36Sopenharmony_ci 32462306a36Sopenharmony_ci axp20x_pek->axp20x = dev_get_drvdata(pdev->dev.parent); 32562306a36Sopenharmony_ci 32662306a36Sopenharmony_ci if (axp20x_pek_should_register_input(axp20x_pek)) { 32762306a36Sopenharmony_ci error = axp20x_pek_probe_input_device(axp20x_pek, pdev); 32862306a36Sopenharmony_ci if (error) 32962306a36Sopenharmony_ci return error; 33062306a36Sopenharmony_ci } 33162306a36Sopenharmony_ci 33262306a36Sopenharmony_ci axp20x_pek->info = (struct axp20x_info *)match->driver_data; 33362306a36Sopenharmony_ci 33462306a36Sopenharmony_ci platform_set_drvdata(pdev, axp20x_pek); 33562306a36Sopenharmony_ci 33662306a36Sopenharmony_ci return 0; 33762306a36Sopenharmony_ci} 33862306a36Sopenharmony_ci 33962306a36Sopenharmony_cistatic int axp20x_pek_suspend(struct device *dev) 34062306a36Sopenharmony_ci{ 34162306a36Sopenharmony_ci struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev); 34262306a36Sopenharmony_ci 34362306a36Sopenharmony_ci /* 34462306a36Sopenharmony_ci * As nested threaded IRQs are not automatically disabled during 34562306a36Sopenharmony_ci * suspend, we must explicitly disable non-wakeup IRQs. 34662306a36Sopenharmony_ci */ 34762306a36Sopenharmony_ci if (device_may_wakeup(dev)) { 34862306a36Sopenharmony_ci enable_irq_wake(axp20x_pek->irq_dbf); 34962306a36Sopenharmony_ci enable_irq_wake(axp20x_pek->irq_dbr); 35062306a36Sopenharmony_ci } else { 35162306a36Sopenharmony_ci disable_irq(axp20x_pek->irq_dbf); 35262306a36Sopenharmony_ci disable_irq(axp20x_pek->irq_dbr); 35362306a36Sopenharmony_ci } 35462306a36Sopenharmony_ci 35562306a36Sopenharmony_ci return 0; 35662306a36Sopenharmony_ci} 35762306a36Sopenharmony_ci 35862306a36Sopenharmony_cistatic int axp20x_pek_resume(struct device *dev) 35962306a36Sopenharmony_ci{ 36062306a36Sopenharmony_ci struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev); 36162306a36Sopenharmony_ci 36262306a36Sopenharmony_ci if (device_may_wakeup(dev)) { 36362306a36Sopenharmony_ci disable_irq_wake(axp20x_pek->irq_dbf); 36462306a36Sopenharmony_ci disable_irq_wake(axp20x_pek->irq_dbr); 36562306a36Sopenharmony_ci } else { 36662306a36Sopenharmony_ci enable_irq(axp20x_pek->irq_dbf); 36762306a36Sopenharmony_ci enable_irq(axp20x_pek->irq_dbr); 36862306a36Sopenharmony_ci } 36962306a36Sopenharmony_ci 37062306a36Sopenharmony_ci return 0; 37162306a36Sopenharmony_ci} 37262306a36Sopenharmony_ci 37362306a36Sopenharmony_cistatic int __maybe_unused axp20x_pek_resume_noirq(struct device *dev) 37462306a36Sopenharmony_ci{ 37562306a36Sopenharmony_ci struct axp20x_pek *axp20x_pek = dev_get_drvdata(dev); 37662306a36Sopenharmony_ci 37762306a36Sopenharmony_ci if (axp20x_pek->axp20x->variant != AXP288_ID) 37862306a36Sopenharmony_ci return 0; 37962306a36Sopenharmony_ci 38062306a36Sopenharmony_ci /* 38162306a36Sopenharmony_ci * Clear interrupts from button presses during suspend, to avoid 38262306a36Sopenharmony_ci * a wakeup power-button press getting reported to userspace. 38362306a36Sopenharmony_ci */ 38462306a36Sopenharmony_ci regmap_write(axp20x_pek->axp20x->regmap, 38562306a36Sopenharmony_ci AXP20X_IRQ1_STATE + AXP288_IRQ_POKN / 8, 38662306a36Sopenharmony_ci BIT(AXP288_IRQ_POKN % 8)); 38762306a36Sopenharmony_ci 38862306a36Sopenharmony_ci return 0; 38962306a36Sopenharmony_ci} 39062306a36Sopenharmony_ci 39162306a36Sopenharmony_cistatic const struct dev_pm_ops axp20x_pek_pm_ops = { 39262306a36Sopenharmony_ci SYSTEM_SLEEP_PM_OPS(axp20x_pek_suspend, axp20x_pek_resume) 39362306a36Sopenharmony_ci .resume_noirq = pm_sleep_ptr(axp20x_pek_resume_noirq), 39462306a36Sopenharmony_ci}; 39562306a36Sopenharmony_ci 39662306a36Sopenharmony_cistatic const struct platform_device_id axp_pek_id_match[] = { 39762306a36Sopenharmony_ci { 39862306a36Sopenharmony_ci .name = "axp20x-pek", 39962306a36Sopenharmony_ci .driver_data = (kernel_ulong_t)&axp20x_info, 40062306a36Sopenharmony_ci }, 40162306a36Sopenharmony_ci { 40262306a36Sopenharmony_ci .name = "axp221-pek", 40362306a36Sopenharmony_ci .driver_data = (kernel_ulong_t)&axp221_info, 40462306a36Sopenharmony_ci }, 40562306a36Sopenharmony_ci { /* sentinel */ } 40662306a36Sopenharmony_ci}; 40762306a36Sopenharmony_ciMODULE_DEVICE_TABLE(platform, axp_pek_id_match); 40862306a36Sopenharmony_ci 40962306a36Sopenharmony_cistatic struct platform_driver axp20x_pek_driver = { 41062306a36Sopenharmony_ci .probe = axp20x_pek_probe, 41162306a36Sopenharmony_ci .id_table = axp_pek_id_match, 41262306a36Sopenharmony_ci .driver = { 41362306a36Sopenharmony_ci .name = "axp20x-pek", 41462306a36Sopenharmony_ci .pm = pm_sleep_ptr(&axp20x_pek_pm_ops), 41562306a36Sopenharmony_ci .dev_groups = axp20x_groups, 41662306a36Sopenharmony_ci }, 41762306a36Sopenharmony_ci}; 41862306a36Sopenharmony_cimodule_platform_driver(axp20x_pek_driver); 41962306a36Sopenharmony_ci 42062306a36Sopenharmony_ciMODULE_DESCRIPTION("axp20x Power Button"); 42162306a36Sopenharmony_ciMODULE_AUTHOR("Carlo Caione <carlo@caione.org>"); 42262306a36Sopenharmony_ciMODULE_LICENSE("GPL"); 423