diff options
| -rw-r--r-- | drivers/mfd/Makefile | 1 | ||||
| -rw-r--r-- | drivers/mfd/cros_ec.c | 15 | ||||
| -rw-r--r-- | drivers/mfd/cros_ec_acpi_gpe.c | 103 | ||||
| -rw-r--r-- | include/linux/mfd/cros_ec.h | 18 |
4 files changed, 3 insertions, 134 deletions
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index d9d2cf0..e9fd20d 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -13,7 +13,6 @@ obj-$(CONFIG_MFD_ASIC3) += asic3.o tmio_core.o obj-$(CONFIG_MFD_BCM590XX) += bcm590xx.o obj-$(CONFIG_MFD_BD9571MWV) += bd9571mwv.o cros_ec_core-objs := cros_ec.o -cros_ec_core-$(CONFIG_ACPI) += cros_ec_acpi_gpe.o obj-$(CONFIG_MFD_CROS_EC) += cros_ec_core.o obj-$(CONFIG_MFD_CROS_EC_I2C) += cros_ec_i2c.o obj-$(CONFIG_MFD_CROS_EC_SPI) += cros_ec_spi.o diff --git a/drivers/mfd/cros_ec.c b/drivers/mfd/cros_ec.c index d610241..c221163 100644 --- a/drivers/mfd/cros_ec.c +++ b/drivers/mfd/cros_ec.c @@ -173,8 +173,6 @@ int cros_ec_register(struct cros_ec_device *ec_dev) dev_info(dev, "Chrome EC device registered\n"); - cros_ec_acpi_install_gpe_handler(dev); - return 0; fail_mfd: @@ -188,8 +186,6 @@ int cros_ec_remove(struct cros_ec_device *ec_dev) { mfd_remove_devices(ec_dev->dev); - cros_ec_acpi_remove_gpe_handler(); - if (ec_dev->irq) free_irq(ec_dev->irq, ec_dev); @@ -204,14 +200,9 @@ int cros_ec_suspend(struct cros_ec_device *ec_dev) int ret; u8 sleep_event; - if (!IS_ENABLED(CONFIG_ACPI) || pm_suspend_via_firmware()) { - sleep_event = HOST_SLEEP_EVENT_S3_SUSPEND; - } else { - sleep_event = HOST_SLEEP_EVENT_S0IX_SUSPEND; - - /* Clearing the GPE status for any pending event */ - cros_ec_acpi_clear_gpe(); - } + sleep_event = (!IS_ENABLED(CONFIG_ACPI) || pm_suspend_via_firmware()) ? + HOST_SLEEP_EVENT_S3_SUSPEND : + HOST_SLEEP_EVENT_S0IX_SUSPEND; ret = cros_ec_sleep_event(ec_dev, sleep_event); if (ret < 0) diff --git a/drivers/mfd/cros_ec_acpi_gpe.c b/drivers/mfd/cros_ec_acpi_gpe.c deleted file mode 100644 index 56d305d..0000000 --- a/drivers/mfd/cros_ec_acpi_gpe.c +++ /dev/null @@ -1,103 +0,0 @@ -/* - * ChromeOS EC multi-function device - * - * Copyright (C) 2017 Google, Inc - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * The ChromeOS EC multi function device is used to mux all the requests - * to the EC device for its multiple features: keyboard controller, - * battery charging and regulator control, firmware update. - */ -#include <linux/acpi.h> - -#define ACPI_LID_DEVICE "LID0" - -static int ec_wake_gpe = -EINVAL; - -/* - * This handler indicates to ACPI core that this GPE should stay enabled for - * lid to work in suspend to idle path. - */ -static u32 cros_ec_gpe_handler(acpi_handle gpe_device, u32 gpe_number, - void *data) -{ - return ACPI_INTERRUPT_HANDLED | ACPI_REENABLE_GPE; -} - -/* - * Get ACPI GPE for LID0 device. - */ -static int cros_ec_get_ec_wake_gpe(struct device *dev) -{ - struct acpi_device *cros_acpi_dev; - struct acpi_device *adev; - acpi_handle handle; - acpi_status status; - int ret; - - cros_acpi_dev = ACPI_COMPANION(dev); - - if (!cros_acpi_dev || !cros_acpi_dev->parent || - !cros_acpi_dev->parent->handle) - return -EINVAL; - - status = acpi_get_handle(cros_acpi_dev->parent->handle, ACPI_LID_DEVICE, - &handle); - if (ACPI_FAILURE(status)) - return -EINVAL; - - ret = acpi_bus_get_device(handle, &adev); - if (ret) - return ret; - - return adev->wakeup.gpe_number; -} - -int cros_ec_acpi_install_gpe_handler(struct device *dev) -{ - acpi_status status; - - ec_wake_gpe = cros_ec_get_ec_wake_gpe(dev); - - if (ec_wake_gpe < 0) - return ec_wake_gpe; - - status = acpi_install_gpe_handler(NULL, ec_wake_gpe, - ACPI_GPE_EDGE_TRIGGERED, - &cros_ec_gpe_handler, NULL); - if (ACPI_FAILURE(status)) - return -ENODEV; - - dev_info(dev, "Initialized, GPE = 0x%x\n", ec_wake_gpe); - - return 0; -} - -void cros_ec_acpi_remove_gpe_handler(void) -{ - acpi_status status; - - if (ec_wake_gpe < 0) - return; - - status = acpi_remove_gpe_handler(NULL, ec_wake_gpe, - &cros_ec_gpe_handler); - if (ACPI_FAILURE(status)) - pr_err("failed to remove gpe handler\n"); -} - -void cros_ec_acpi_clear_gpe(void) -{ - if (ec_wake_gpe < 0) - return; - - acpi_clear_gpe(NULL, ec_wake_gpe); -} diff --git a/include/linux/mfd/cros_ec.h b/include/linux/mfd/cros_ec.h index 2d4e23c..4ff0cec 100644 --- a/include/linux/mfd/cros_ec.h +++ b/include/linux/mfd/cros_ec.h @@ -328,22 +328,4 @@ extern struct attribute_group cros_ec_vbc_attr_group; int cros_ec_debugfs_init(struct cros_ec_dev *ec); void cros_ec_debugfs_remove(struct cros_ec_dev *ec); -/* ACPI GPE handler */ -#ifdef CONFIG_ACPI - -int cros_ec_acpi_install_gpe_handler(struct device *dev); -void cros_ec_acpi_remove_gpe_handler(void); -void cros_ec_acpi_clear_gpe(void); - -#else /* CONFIG_ACPI */ - -static inline int cros_ec_acpi_install_gpe_handler(struct device *dev) -{ - return -ENODEV; -} -static inline void cros_ec_acpi_remove_gpe_handler(void) {} -static inline void cros_ec_acpi_clear_gpe(void) {} - -#endif /* CONFIG_ACPI */ - #endif /* __LINUX_MFD_CROS_EC_H */ |
