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-rw-r--r--drivers/platform/Kconfig3
-rw-r--r--drivers/platform/Makefile1
-rw-r--r--drivers/platform/chrome/Kconfig26
-rw-r--r--drivers/platform/chrome/Makefile3
-rw-r--r--drivers/platform/chrome/chromeos_laptop.c35
-rw-r--r--drivers/platform/chrome/cros_ec_dev.c274
-rw-r--r--drivers/platform/chrome/cros_ec_dev.h53
-rw-r--r--drivers/platform/chrome/cros_ec_lightbar.c367
-rw-r--r--drivers/platform/chrome/cros_ec_lpc.c319
-rw-r--r--drivers/platform/chrome/cros_ec_sysfs.c271
-rw-r--r--drivers/platform/mips/Kconfig30
-rw-r--r--drivers/platform/mips/Makefile2
-rw-r--r--drivers/platform/mips/acpi_init.c150
-rw-r--r--drivers/platform/mips/cpu_hwmon.c207
-rw-r--r--drivers/platform/x86/apple-gmux.c14
-rw-r--r--drivers/platform/x86/compal-laptop.c35
-rw-r--r--drivers/platform/x86/fujitsu-tablet.c6
-rw-r--r--drivers/platform/x86/hp-wmi.c2
18 files changed, 1756 insertions, 42 deletions
diff --git a/drivers/platform/Kconfig b/drivers/platform/Kconfig
index 09fde58..0adccbf 100644
--- a/drivers/platform/Kconfig
+++ b/drivers/platform/Kconfig
@@ -1,6 +1,9 @@
if X86
source "drivers/platform/x86/Kconfig"
endif
+if MIPS
+source "drivers/platform/mips/Kconfig"
+endif
if GOLDFISH
source "drivers/platform/goldfish/Kconfig"
endif
diff --git a/drivers/platform/Makefile b/drivers/platform/Makefile
index 3656b7b..ca26925 100644
--- a/drivers/platform/Makefile
+++ b/drivers/platform/Makefile
@@ -3,6 +3,7 @@
#
obj-$(CONFIG_X86) += x86/
+obj-$(CONFIG_MIPS) += mips/
obj-$(CONFIG_OLPC) += olpc/
obj-$(CONFIG_GOLDFISH) += goldfish/
obj-$(CONFIG_CHROME_PLATFORMS) += chrome/
diff --git a/drivers/platform/chrome/Kconfig b/drivers/platform/chrome/Kconfig
index 440ed77..2a6531a 100644
--- a/drivers/platform/chrome/Kconfig
+++ b/drivers/platform/chrome/Kconfig
@@ -4,7 +4,7 @@
menuconfig CHROME_PLATFORMS
bool "Platform support for Chrome hardware"
- depends on X86
+ depends on X86 || ARM
---help---
Say Y here to get to see options for platform support for
various Chromebooks and Chromeboxes. This option alone does
@@ -16,8 +16,7 @@ if CHROME_PLATFORMS
config CHROMEOS_LAPTOP
tristate "Chrome OS Laptop"
- depends on I2C
- depends on DMI
+ depends on I2C && DMI && X86
---help---
This driver instantiates i2c and smbus devices such as
light sensors and touchpads.
@@ -27,6 +26,7 @@ config CHROMEOS_LAPTOP
config CHROMEOS_PSTORE
tristate "Chrome OS pstore support"
+ depends on X86
---help---
This module instantiates the persistent storage on x86 ChromeOS
devices. It can be used to store away console logs and crash
@@ -38,5 +38,25 @@ config CHROMEOS_PSTORE
If you have a supported Chromebook, choose Y or M here.
The module will be called chromeos_pstore.
+config CROS_EC_CHARDEV
+ tristate "Chrome OS Embedded Controller userspace device interface"
+ depends on MFD_CROS_EC
+ ---help---
+ This driver adds support to talk with the ChromeOS EC from userspace.
+
+ If you have a supported Chromebook, choose Y or M here.
+ The module will be called cros_ec_dev.
+
+config CROS_EC_LPC
+ tristate "ChromeOS Embedded Controller (LPC)"
+ depends on MFD_CROS_EC && (X86 || COMPILE_TEST)
+ help
+ If you say Y here, you get support for talking to the ChromeOS EC
+ over an LPC bus. This uses a simple byte-level protocol with a
+ checksum. This is used for userspace access only. The kernel
+ typically has its own communication methods.
+
+ To compile this driver as a module, choose M here: the
+ module will be called cros_ec_lpc.
endif # CHROMEOS_PLATFORMS
diff --git a/drivers/platform/chrome/Makefile b/drivers/platform/chrome/Makefile
index 2b860ca..bd8d860 100644
--- a/drivers/platform/chrome/Makefile
+++ b/drivers/platform/chrome/Makefile
@@ -1,3 +1,6 @@
obj-$(CONFIG_CHROMEOS_LAPTOP) += chromeos_laptop.o
obj-$(CONFIG_CHROMEOS_PSTORE) += chromeos_pstore.o
+cros_ec_devs-objs := cros_ec_dev.o cros_ec_sysfs.o cros_ec_lightbar.o
+obj-$(CONFIG_CROS_EC_CHARDEV) += cros_ec_devs.o
+obj-$(CONFIG_CROS_EC_LPC) += cros_ec_lpc.o
diff --git a/drivers/platform/chrome/chromeos_laptop.c b/drivers/platform/chrome/chromeos_laptop.c
index b84fdd6..a04019a 100644
--- a/drivers/platform/chrome/chromeos_laptop.c
+++ b/drivers/platform/chrome/chromeos_laptop.c
@@ -133,12 +133,13 @@ static struct i2c_client *__add_probed_i2c_device(
const char *name,
int bus,
struct i2c_board_info *info,
- const unsigned short *addrs)
+ const unsigned short *alt_addr_list)
{
const struct dmi_device *dmi_dev;
const struct dmi_dev_onboard *dev_data;
struct i2c_adapter *adapter;
- struct i2c_client *client;
+ struct i2c_client *client = NULL;
+ const unsigned short addr_list[] = { info->addr, I2C_CLIENT_END };
if (bus < 0)
return NULL;
@@ -169,8 +170,28 @@ static struct i2c_client *__add_probed_i2c_device(
return NULL;
}
- /* add the i2c device */
- client = i2c_new_probed_device(adapter, info, addrs, NULL);
+ /*
+ * Add the i2c device. If we can't detect it at the primary
+ * address we scan secondary addresses. In any case the client
+ * structure gets assigned primary address.
+ */
+ client = i2c_new_probed_device(adapter, info, addr_list, NULL);
+ if (!client && alt_addr_list) {
+ struct i2c_board_info dummy_info = {
+ I2C_BOARD_INFO("dummy", info->addr),
+ };
+ struct i2c_client *dummy;
+
+ dummy = i2c_new_probed_device(adapter, &dummy_info,
+ alt_addr_list, NULL);
+ if (dummy) {
+ pr_debug("%s %d-%02x is probed at %02x\n",
+ __func__, bus, info->addr, dummy->addr);
+ i2c_unregister_device(dummy);
+ client = i2c_new_device(adapter, info);
+ }
+ }
+
if (!client)
pr_notice("%s failed to register device %d-%02x\n",
__func__, bus, info->addr);
@@ -254,12 +275,10 @@ static struct i2c_client *add_i2c_device(const char *name,
enum i2c_adapter_type type,
struct i2c_board_info *info)
{
- const unsigned short addr_list[] = { info->addr, I2C_CLIENT_END };
-
return __add_probed_i2c_device(name,
find_i2c_adapter_num(type),
info,
- addr_list);
+ NULL);
}
static int setup_cyapa_tp(enum i2c_adapter_type type)
@@ -275,7 +294,6 @@ static int setup_cyapa_tp(enum i2c_adapter_type type)
static int setup_atmel_224s_tp(enum i2c_adapter_type type)
{
const unsigned short addr_list[] = { ATMEL_TP_I2C_BL_ADDR,
- ATMEL_TP_I2C_ADDR,
I2C_CLIENT_END };
if (tp)
return 0;
@@ -289,7 +307,6 @@ static int setup_atmel_224s_tp(enum i2c_adapter_type type)
static int setup_atmel_1664s_ts(enum i2c_adapter_type type)
{
const unsigned short addr_list[] = { ATMEL_TS_I2C_BL_ADDR,
- ATMEL_TS_I2C_ADDR,
I2C_CLIENT_END };
if (ts)
return 0;
diff --git a/drivers/platform/chrome/cros_ec_dev.c b/drivers/platform/chrome/cros_ec_dev.c
new file mode 100644
index 0000000..6090d0b
--- /dev/null
+++ b/drivers/platform/chrome/cros_ec_dev.c
@@ -0,0 +1,274 @@
+/*
+ * cros_ec_dev - expose the Chrome OS Embedded Controller to user-space
+ *
+ * Copyright (C) 2014 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/fs.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/uaccess.h>
+
+#include "cros_ec_dev.h"
+
+/* Device variables */
+#define CROS_MAX_DEV 128
+static struct class *cros_class;
+static int ec_major;
+
+/* Basic communication */
+static int ec_get_version(struct cros_ec_device *ec, char *str, int maxlen)
+{
+ struct ec_response_get_version *resp;
+ static const char * const current_image_name[] = {
+ "unknown", "read-only", "read-write", "invalid",
+ };
+ struct cros_ec_command msg = {
+ .version = 0,
+ .command = EC_CMD_GET_VERSION,
+ .outdata = { 0 },
+ .outsize = 0,
+ .indata = { 0 },
+ .insize = sizeof(*resp),
+ };
+ int ret;
+
+ ret = cros_ec_cmd_xfer(ec, &msg);
+ if (ret < 0)
+ return ret;
+
+ if (msg.result != EC_RES_SUCCESS) {
+ snprintf(str, maxlen,
+ "%s\nUnknown EC version: EC returned %d\n",
+ CROS_EC_DEV_VERSION, msg.result);
+ return 0;
+ }
+
+ resp = (struct ec_response_get_version *)msg.indata;
+ if (resp->current_image >= ARRAY_SIZE(current_image_name))
+ resp->current_image = 3; /* invalid */
+
+ snprintf(str, maxlen, "%s\n%s\n%s\n%s\n", CROS_EC_DEV_VERSION,
+ resp->version_string_ro, resp->version_string_rw,
+ current_image_name[resp->current_image]);
+
+ return 0;
+}
+
+/* Device file ops */
+static int ec_device_open(struct inode *inode, struct file *filp)
+{
+ filp->private_data = container_of(inode->i_cdev,
+ struct cros_ec_device, cdev);
+ return 0;
+}
+
+static int ec_device_release(struct inode *inode, struct file *filp)
+{
+ return 0;
+}
+
+static ssize_t ec_device_read(struct file *filp, char __user *buffer,
+ size_t length, loff_t *offset)
+{
+ struct cros_ec_device *ec = filp->private_data;
+ char msg[sizeof(struct ec_response_get_version) +
+ sizeof(CROS_EC_DEV_VERSION)];
+ size_t count;
+ int ret;
+
+ if (*offset != 0)
+ return 0;
+
+ ret = ec_get_version(ec, msg, sizeof(msg));
+ if (ret)
+ return ret;
+
+ count = min(length, strlen(msg));
+
+ if (copy_to_user(buffer, msg, count))
+ return -EFAULT;
+
+ *offset = count;
+ return count;
+}
+
+/* Ioctls */
+static long ec_device_ioctl_xcmd(struct cros_ec_device *ec, void __user *arg)
+{
+ long ret;
+ struct cros_ec_command s_cmd = { };
+
+ if (copy_from_user(&s_cmd, arg, sizeof(s_cmd)))
+ return -EFAULT;
+
+ ret = cros_ec_cmd_xfer(ec, &s_cmd);
+ /* Only copy data to userland if data was received. */
+ if (ret < 0)
+ return ret;
+
+ if (copy_to_user(arg, &s_cmd, sizeof(s_cmd)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static long ec_device_ioctl_readmem(struct cros_ec_device *ec, void __user *arg)
+{
+ struct cros_ec_readmem s_mem = { };
+ long num;
+
+ /* Not every platform supports direct reads */
+ if (!ec->cmd_readmem)
+ return -ENOTTY;
+
+ if (copy_from_user(&s_mem, arg, sizeof(s_mem)))
+ return -EFAULT;
+
+ num = ec->cmd_readmem(ec, s_mem.offset, s_mem.bytes, s_mem.buffer);
+ if (num <= 0)
+ return num;
+
+ if (copy_to_user((void __user *)arg, &s_mem, sizeof(s_mem)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static long ec_device_ioctl(struct file *filp, unsigned int cmd,
+ unsigned long arg)
+{
+ struct cros_ec_device *ec = filp->private_data;
+
+ if (_IOC_TYPE(cmd) != CROS_EC_DEV_IOC)
+ return -ENOTTY;
+
+ switch (cmd) {
+ case CROS_EC_DEV_IOCXCMD:
+ return ec_device_ioctl_xcmd(ec, (void __user *)arg);
+ case CROS_EC_DEV_IOCRDMEM:
+ return ec_device_ioctl_readmem(ec, (void __user *)arg);
+ }
+
+ return -ENOTTY;
+}
+
+/* Module initialization */
+static const struct file_operations fops = {
+ .open = ec_device_open,
+ .release = ec_device_release,
+ .read = ec_device_read,
+ .unlocked_ioctl = ec_device_ioctl,
+};
+
+static int ec_device_probe(struct platform_device *pdev)
+{
+ struct cros_ec_device *ec = dev_get_drvdata(pdev->dev.parent);
+ int retval = -ENOTTY;
+ dev_t devno = MKDEV(ec_major, 0);
+
+ /* Instantiate it (and remember the EC) */
+ cdev_init(&ec->cdev, &fops);
+
+ retval = cdev_add(&ec->cdev, devno, 1);
+ if (retval) {
+ dev_err(&pdev->dev, ": failed to add character device\n");
+ return retval;
+ }
+
+ ec->vdev = device_create(cros_class, NULL, devno, ec,
+ CROS_EC_DEV_NAME);
+ if (IS_ERR(ec->vdev)) {
+ retval = PTR_ERR(ec->vdev);
+ dev_err(&pdev->dev, ": failed to create device\n");
+ cdev_del(&ec->cdev);
+ return retval;
+ }
+
+ /* Initialize extra interfaces */
+ ec_dev_sysfs_init(ec);
+ ec_dev_lightbar_init(ec);
+
+ return 0;
+}
+
+static int ec_device_remove(struct platform_device *pdev)
+{
+ struct cros_ec_device *ec = dev_get_drvdata(pdev->dev.parent);
+
+ ec_dev_lightbar_remove(ec);
+ ec_dev_sysfs_remove(ec);
+ device_destroy(cros_class, MKDEV(ec_major, 0));
+ cdev_del(&ec->cdev);
+ return 0;
+}
+
+static struct platform_driver cros_ec_dev_driver = {
+ .driver = {
+ .name = "cros-ec-ctl",
+ },
+ .probe = ec_device_probe,
+ .remove = ec_device_remove,
+};
+
+static int __init cros_ec_dev_init(void)
+{
+ int ret;
+ dev_t dev = 0;
+
+ cros_class = class_create(THIS_MODULE, "chromeos");
+ if (IS_ERR(cros_class)) {
+ pr_err(CROS_EC_DEV_NAME ": failed to register device class\n");
+ return PTR_ERR(cros_class);
+ }
+
+ /* Get a range of minor numbers (starting with 0) to work with */
+ ret = alloc_chrdev_region(&dev, 0, CROS_MAX_DEV, CROS_EC_DEV_NAME);
+ if (ret < 0) {
+ pr_err(CROS_EC_DEV_NAME ": alloc_chrdev_region() failed\n");
+ goto failed_chrdevreg;
+ }
+ ec_major = MAJOR(dev);
+
+ /* Register the driver */
+ ret = platform_driver_register(&cros_ec_dev_driver);
+ if (ret < 0) {
+ pr_warn(CROS_EC_DEV_NAME ": can't register driver: %d\n", ret);
+ goto failed_devreg;
+ }
+ return 0;
+
+failed_devreg:
+ unregister_chrdev_region(MKDEV(ec_major, 0), CROS_MAX_DEV);
+failed_chrdevreg:
+ class_destroy(cros_class);
+ return ret;
+}
+
+static void __exit cros_ec_dev_exit(void)
+{
+ platform_driver_unregister(&cros_ec_dev_driver);
+ unregister_chrdev(ec_major, CROS_EC_DEV_NAME);
+ class_destroy(cros_class);
+}
+
+module_init(cros_ec_dev_init);
+module_exit(cros_ec_dev_exit);
+
+MODULE_AUTHOR("Bill Richardson <wfrichar@chromium.org>");
+MODULE_DESCRIPTION("Userspace interface to the Chrome OS Embedded Controller");
+MODULE_VERSION("1.0");
+MODULE_LICENSE("GPL");
diff --git a/drivers/platform/chrome/cros_ec_dev.h b/drivers/platform/chrome/cros_ec_dev.h
new file mode 100644
index 0000000..45d67f7
--- /dev/null
+++ b/drivers/platform/chrome/cros_ec_dev.h
@@ -0,0 +1,53 @@
+/*
+ * cros_ec_dev - expose the Chrome OS Embedded Controller to userspace
+ *
+ * Copyright (C) 2014 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _CROS_EC_DEV_H_
+#define _CROS_EC_DEV_H_
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+#include <linux/mfd/cros_ec.h>
+
+#define CROS_EC_DEV_NAME "cros_ec"
+#define CROS_EC_DEV_VERSION "1.0.0"
+
+/*
+ * @offset: within EC_LPC_ADDR_MEMMAP region
+ * @bytes: number of bytes to read. zero means "read a string" (including '\0')
+ * (at most only EC_MEMMAP_SIZE bytes can be read)
+ * @buffer: where to store the result
+ * ioctl returns the number of bytes read, negative on error
+ */
+struct cros_ec_readmem {
+ uint32_t offset;
+ uint32_t bytes;
+ uint8_t buffer[EC_MEMMAP_SIZE];
+};
+
+#define CROS_EC_DEV_IOC 0xEC
+#define CROS_EC_DEV_IOCXCMD _IOWR(CROS_EC_DEV_IOC, 0, struct cros_ec_command)
+#define CROS_EC_DEV_IOCRDMEM _IOWR(CROS_EC_DEV_IOC, 1, struct cros_ec_readmem)
+
+void ec_dev_sysfs_init(struct cros_ec_device *);
+void ec_dev_sysfs_remove(struct cros_ec_device *);
+
+void ec_dev_lightbar_init(struct cros_ec_device *);
+void ec_dev_lightbar_remove(struct cros_ec_device *);
+
+#endif /* _CROS_EC_DEV_H_ */
diff --git a/drivers/platform/chrome/cros_ec_lightbar.c b/drivers/platform/chrome/cros_ec_lightbar.c
new file mode 100644
index 0000000..b4ff47a
--- /dev/null
+++ b/drivers/platform/chrome/cros_ec_lightbar.c
@@ -0,0 +1,367 @@
+/*
+ * cros_ec_lightbar - expose the Chromebook Pixel lightbar to userspace
+ *
+ * Copyright (C) 2014 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define pr_fmt(fmt) "cros_ec_lightbar: " fmt
+
+#include <linux/ctype.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/fs.h>
+#include <linux/kobject.h>
+#include <linux/mfd/cros_ec.h>
+#include <linux/mfd/cros_ec_commands.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/uaccess.h>
+
+#include "cros_ec_dev.h"
+
+/* Rate-limit the lightbar interface to prevent DoS. */
+static unsigned long lb_interval_jiffies = 50 * HZ / 1000;
+
+static ssize_t interval_msec_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long msec = lb_interval_jiffies * 1000 / HZ;
+
+ return scnprintf(buf, PAGE_SIZE, "%lu\n", msec);
+}
+
+static ssize_t interval_msec_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned long msec;
+
+ if (kstrtoul(buf, 0, &msec))
+ return -EINVAL;
+
+ lb_interval_jiffies = msec * HZ / 1000;
+
+ return count;
+}
+
+static DEFINE_MUTEX(lb_mutex);
+/* Return 0 if able to throttle correctly, error otherwise */
+static int lb_throttle(void)
+{
+ static unsigned long last_access;
+ unsigned long now, next_timeslot;
+ long delay;
+ int ret = 0;
+
+ mutex_lock(&lb_mutex);
+
+ now = jiffies;
+ next_timeslot = last_access + lb_interval_jiffies;
+
+ if (time_before(now, next_timeslot)) {
+ delay = (long)(next_timeslot) - (long)now;
+ set_current_state(TASK_INTERRUPTIBLE);
+ if (schedule_timeout(delay) > 0) {
+ /* interrupted - just abort */
+ ret = -EINTR;
+ goto out;
+ }
+ now = jiffies;
+ }
+
+ last_access = now;
+out:
+ mutex_unlock(&lb_mutex);
+
+ return ret;
+}
+
+#define INIT_MSG(P, R) { \
+ .command = EC_CMD_LIGHTBAR_CMD, \
+ .outsize = sizeof(*P), \
+ .insize = sizeof(*R), \
+ }
+
+static int get_lightbar_version(struct cros_ec_device *ec,
+ uint32_t *ver_ptr, uint32_t *flg_ptr)
+{
+ struct ec_params_lightbar *param;
+ struct ec_response_lightbar *resp;
+ struct cros_ec_command msg = INIT_MSG(param, resp);
+ int ret;
+
+ param = (struct ec_params_lightbar *)msg.outdata;
+ param->cmd = LIGHTBAR_CMD_VERSION;
+ ret = cros_ec_cmd_xfer(ec, &msg);
+ if (ret < 0)
+ return 0;
+
+ switch (msg.result) {
+ case EC_RES_INVALID_PARAM:
+ /* Pixel had no version command. */
+ if (ver_ptr)
+ *ver_ptr = 0;
+ if (flg_ptr)
+ *flg_ptr = 0;
+ return 1;
+
+ case EC_RES_SUCCESS:
+ resp = (struct ec_response_lightbar *)msg.indata;
+
+ /* Future devices w/lightbars should implement this command */
+ if (ver_ptr)
+ *ver_ptr = resp->version.num;
+ if (flg_ptr)
+ *flg_ptr = resp->version.flags;
+ return 1;
+ }
+
+ /* Anything else (ie, EC_RES_INVALID_COMMAND) - no lightbar */
+ return 0;
+}
+
+static ssize_t version_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ uint32_t version, flags;
+ struct cros_ec_device *ec = dev_get_drvdata(dev);
+ int ret;
+
+ ret = lb_throttle();
+ if (ret)
+ return ret;
+
+ /* This should always succeed, because we check during init. */
+ if (!get_lightbar_version(ec, &version, &flags))
+ return -EIO;
+
+ return scnprintf(buf, PAGE_SIZE, "%d %d\n", version, flags);
+}
+
+static ssize_t brightness_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ec_params_lightbar *param;
+ struct ec_response_lightbar *resp;
+ struct cros_ec_command msg = INIT_MSG(param, resp);
+ int ret;
+ unsigned int val;
+ struct cros_ec_device *ec = dev_get_drvdata(dev);
+
+ if (kstrtouint(buf, 0, &val))
+ return -EINVAL;
+
+ param = (struct ec_params_lightbar *)msg.outdata;
+ param->cmd = LIGHTBAR_CMD_BRIGHTNESS;
+ param->brightness.num = val;
+ ret = lb_throttle();
+ if (ret)
+ return ret;
+
+ ret = cros_ec_cmd_xfer(ec, &msg);
+ if (ret < 0)
+ return ret;
+
+ if (msg.result != EC_RES_SUCCESS)
+ return -EINVAL;
+
+ return count;
+}
+
+
+/*
+ * We expect numbers, and we'll keep reading until we find them, skipping over
+ * any whitespace (sysfs guarantees that the input is null-terminated). Every
+ * four numbers are sent to the lightbar as <LED,R,G,B>. We fail at the first
+ * parsing error, if we don't parse any numbers, or if we have numbers left
+ * over.
+ */
+static ssize_t led_rgb_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ec_params_lightbar *param;
+ struct ec_response_lightbar *resp;
+ struct cros_ec_command msg = INIT_MSG(param, resp);
+ struct cros_ec_device *ec = dev_get_drvdata(dev);
+ unsigned int val[4];
+ int ret, i = 0, j = 0, ok = 0;
+
+ do {
+ /* Skip any whitespace */
+ while (*buf && isspace(*buf))
+ buf++;
+
+ if (!*buf)
+ break;
+
+ ret = sscanf(buf, "%i", &val[i++]);
+ if (ret == 0)
+ return -EINVAL;
+
+ if (i == 4) {
+ param = (struct ec_params_lightbar *)msg.outdata;
+ param->cmd = LIGHTBAR_CMD_RGB;
+ param->rgb.led = val[0];
+ param->rgb.red = val[1];
+ param->rgb.green = val[2];
+ param->rgb.blue = val[3];
+ /*
+ * Throttle only the first of every four transactions,
+ * so that the user can update all four LEDs at once.
+ */
+ if ((j++ % 4) == 0) {
+ ret = lb_throttle();
+ if (ret)
+ return ret;
+ }
+
+ ret = cros_ec_cmd_xfer(ec, &msg);
+ if (ret < 0)
+ return ret;
+
+ if (msg.result != EC_RES_SUCCESS)
+ return -EINVAL;
+
+ i = 0;
+ ok = 1;
+ }
+
+ /* Skip over the number we just read */
+ while (*buf && !isspace(*buf))
+ buf++;
+
+ } while (*buf);
+
+ return (ok && i == 0) ? count : -EINVAL;
+}
+
+static char const *seqname[] = {
+ "ERROR", "S5", "S3", "S0", "S5S3", "S3S0",
+ "S0S3", "S3S5", "STOP", "RUN", "PULSE", "TEST", "KONAMI",
+};
+
+static ssize_t sequence_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ec_params_lightbar *param;
+ struct ec_response_lightbar *resp;
+ struct cros_ec_command msg = INIT_MSG(param, resp);
+ int ret;
+ struct cros_ec_device *ec = dev_get_drvdata(dev);
+
+ param = (struct ec_params_lightbar *)msg.outdata;
+ param->cmd = LIGHTBAR_CMD_GET_SEQ;
+ ret = lb_throttle();
+ if (ret)
+ return ret;
+
+ ret = cros_ec_cmd_xfer(ec, &msg);
+ if (ret < 0)
+ return ret;
+
+ if (msg.result != EC_RES_SUCCESS)
+ return scnprintf(buf, PAGE_SIZE,
+ "ERROR: EC returned %d\n", msg.result);
+
+ resp = (struct ec_response_lightbar *)msg.indata;
+ if (resp->get_seq.num >= ARRAY_SIZE(seqname))
+ return scnprintf(buf, PAGE_SIZE, "%d\n", resp->get_seq.num);
+ else
+ return scnprintf(buf, PAGE_SIZE, "%s\n",
+ seqname[resp->get_seq.num]);
+}
+
+static ssize_t sequence_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct ec_params_lightbar *param;
+ struct ec_response_lightbar *resp;
+ struct cros_ec_command msg = INIT_MSG(param, resp);
+ unsigned int num;
+ int ret, len;
+ struct cros_ec_device *ec = dev_get_drvdata(dev);
+
+ for (len = 0; len < count; len++)
+ if (!isalnum(buf[len]))
+ break;
+
+ for (num = 0; num < ARRAY_SIZE(seqname); num++)
+ if (!strncasecmp(seqname[num], buf, len))
+ break;
+
+ if (num >= ARRAY_SIZE(seqname)) {
+ ret = kstrtouint(buf, 0, &num);
+ if (ret)
+ return ret;
+ }
+
+ param = (struct ec_params_lightbar *)msg.outdata;
+ param->cmd = LIGHTBAR_CMD_SEQ;
+ param->seq.num = num;
+ ret = lb_throttle();
+ if (ret)
+ return ret;
+
+ ret = cros_ec_cmd_xfer(ec, &msg);
+ if (ret < 0)
+ return ret;
+
+ if (msg.result != EC_RES_SUCCESS)
+ return -EINVAL;
+
+ return count;
+}
+
+/* Module initialization */
+
+static DEVICE_ATTR_RW(interval_msec);
+static DEVICE_ATTR_RO(version);
+static DEVICE_ATTR_WO(brightness);
+static DEVICE_ATTR_WO(led_rgb);
+static DEVICE_ATTR_RW(sequence);
+static struct attribute *__lb_cmds_attrs[] = {
+ &dev_attr_interval_msec.attr,
+ &dev_attr_version.attr,
+ &dev_attr_brightness.attr,
+ &dev_attr_led_rgb.attr,
+ &dev_attr_sequence.attr,
+ NULL,
+};
+static struct attribute_group lb_cmds_attr_group = {
+ .name = "lightbar",
+ .attrs = __lb_cmds_attrs,
+};
+
+void ec_dev_lightbar_init(struct cros_ec_device *ec)
+{
+ int ret = 0;
+
+ /* Only instantiate this stuff if the EC has a lightbar */
+ if (!get_lightbar_version(ec, NULL, NULL))
+ return;
+
+ ret = sysfs_create_group(&ec->vdev->kobj, &lb_cmds_attr_group);
+ if (ret)
+ pr_warn("sysfs_create_group() failed: %d\n", ret);
+}
+
+void ec_dev_lightbar_remove(struct cros_ec_device *ec)
+{
+ sysfs_remove_group(&ec->vdev->kobj, &lb_cmds_attr_group);
+}
diff --git a/drivers/platform/chrome/cros_ec_lpc.c b/drivers/platform/chrome/cros_ec_lpc.c
new file mode 100644
index 0000000..8f9ac4d
--- /dev/null
+++ b/drivers/platform/chrome/cros_ec_lpc.c
@@ -0,0 +1,319 @@
+/*
+ * cros_ec_lpc - LPC access to the Chrome OS Embedded Controller
+ *
+ * Copyright (C) 2012-2015 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.
+ *
+ * This driver uses the Chrome OS EC byte-level message-based protocol for
+ * communicating the keyboard state (which keys are pressed) from a keyboard EC
+ * to the AP over some bus (such as i2c, lpc, spi). The EC does debouncing,
+ * but everything else (including deghosting) is done here. The main
+ * motivation for this is to keep the EC firmware as simple as possible, since
+ * it cannot be easily upgraded and EC flash/IRAM space is relatively
+ * expensive.
+ */
+
+#include <linux/dmi.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/mfd/cros_ec.h>
+#include <linux/mfd/cros_ec_commands.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/printk.h>
+
+#define DRV_NAME "cros_ec_lpc"
+
+static int ec_response_timed_out(void)
+{
+ unsigned long one_second = jiffies + HZ;
+
+ usleep_range(200, 300);
+ do {
+ if (!(inb(EC_LPC_ADDR_HOST_CMD) & EC_LPC_STATUS_BUSY_MASK))
+ return 0;
+ usleep_range(100, 200);
+ } while (time_before(jiffies, one_second));
+
+ return 1;
+}
+
+static int cros_ec_cmd_xfer_lpc(struct cros_ec_device *ec,
+ struct cros_ec_command *msg)
+{
+ struct ec_lpc_host_args args;
+ int csum;
+ int i;
+ int ret = 0;
+
+ if (msg->outsize > EC_PROTO2_MAX_PARAM_SIZE ||
+ msg->insize > EC_PROTO2_MAX_PARAM_SIZE) {
+ dev_err(ec->dev,
+ "invalid buffer sizes (out %d, in %d)\n",
+ msg->outsize, msg->insize);
+ return -EINVAL;
+ }
+
+ /* Now actually send the command to the EC and get the result */
+ args.flags = EC_HOST_ARGS_FLAG_FROM_HOST;
+ args.command_version = msg->version;
+ args.data_size = msg->outsize;
+
+ /* Initialize checksum */
+ csum = msg->command + args.flags +
+ args.command_version + args.data_size;
+
+ /* Copy data and update checksum */
+ for (i = 0; i < msg->outsize; i++) {
+ outb(msg->outdata[i], EC_LPC_ADDR_HOST_PARAM + i);
+ csum += msg->outdata[i];
+ }
+
+ /* Finalize checksum and write args */
+ args.checksum = csum & 0xFF;
+ outb(args.flags, EC_LPC_ADDR_HOST_ARGS);
+ outb(args.command_version, EC_LPC_ADDR_HOST_ARGS + 1);
+ outb(args.data_size, EC_LPC_ADDR_HOST_ARGS + 2);
+ outb(args.checksum, EC_LPC_ADDR_HOST_ARGS + 3);
+
+ /* Here we go */
+ outb(msg->command, EC_LPC_ADDR_HOST_CMD);
+
+ if (ec_response_timed_out()) {
+ dev_warn(ec->dev, "EC responsed timed out\n");
+ ret = -EIO;
+ goto done;
+ }
+
+ /* Check result */
+ msg->result = inb(EC_LPC_ADDR_HOST_DATA);
+
+ switch (msg->result) {
+ case EC_RES_SUCCESS:
+ break;
+ case EC_RES_IN_PROGRESS:
+ ret = -EAGAIN;
+ dev_dbg(ec->dev, "command 0x%02x in progress\n",
+ msg->command);
+ goto done;
+ default:
+ dev_dbg(ec->dev, "command 0x%02x returned %d\n",
+ msg->command, msg->result);
+ }
+
+ /* Read back args */
+ args.flags = inb(EC_LPC_ADDR_HOST_ARGS);
+ args.command_version = inb(EC_LPC_ADDR_HOST_ARGS + 1);
+ args.data_size = inb(EC_LPC_ADDR_HOST_ARGS + 2);
+ args.checksum = inb(EC_LPC_ADDR_HOST_ARGS + 3);
+
+ if (args.data_size > msg->insize) {
+ dev_err(ec->dev,
+ "packet too long (%d bytes, expected %d)",
+ args.data_size, msg->insize);
+ ret = -ENOSPC;
+ goto done;
+ }
+
+ /* Start calculating response checksum */
+ csum = msg->command + args.flags +
+ args.command_version + args.data_size;
+
+ /* Read response and update checksum */
+ for (i = 0; i < args.data_size; i++) {
+ msg->indata[i] = inb(EC_LPC_ADDR_HOST_PARAM + i);
+ csum += msg->indata[i];
+ }
+
+ /* Verify checksum */
+ if (args.checksum != (csum & 0xFF)) {
+ dev_err(ec->dev,
+ "bad packet checksum, expected %02x, got %02x\n",
+ args.checksum, csum & 0xFF);
+ ret = -EBADMSG;
+ goto done;
+ }
+
+ /* Return actual amount of data received */
+ ret = args.data_size;
+done:
+ return ret;
+}
+
+/* Returns num bytes read, or negative on error. Doesn't need locking. */
+static int cros_ec_lpc_readmem(struct cros_ec_device *ec, unsigned int offset,
+ unsigned int bytes, void *dest)
+{
+ int i = offset;
+ char *s = dest;
+ int cnt = 0;
+
+ if (offset >= EC_MEMMAP_SIZE - bytes)
+ return -EINVAL;
+
+ /* fixed length */
+ if (bytes) {
+ for (; cnt < bytes; i++, s++, cnt++)
+ *s = inb(EC_LPC_ADDR_MEMMAP + i);
+ return cnt;
+ }
+
+ /* string */
+ for (; i < EC_MEMMAP_SIZE; i++, s++) {
+ *s = inb(EC_LPC_ADDR_MEMMAP + i);
+ cnt++;
+ if (!*s)
+ break;
+ }
+
+ return cnt;
+}
+
+static int cros_ec_lpc_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct cros_ec_device *ec_dev;
+ int ret;
+
+ if (!devm_request_region(dev, EC_LPC_ADDR_MEMMAP, EC_MEMMAP_SIZE,
+ dev_name(dev))) {
+ dev_err(dev, "couldn't reserve memmap region\n");
+ return -EBUSY;
+ }
+
+ if ((inb(EC_LPC_ADDR_MEMMAP + EC_MEMMAP_ID) != 'E') ||
+ (inb(EC_LPC_ADDR_MEMMAP + EC_MEMMAP_ID + 1) != 'C')) {
+ dev_err(dev, "EC ID not detected\n");
+ return -ENODEV;
+ }
+
+ if (!devm_request_region(dev, EC_HOST_CMD_REGION0,
+ EC_HOST_CMD_REGION_SIZE, dev_name(dev))) {
+ dev_err(dev, "couldn't reserve region0\n");
+ return -EBUSY;
+ }
+ if (!devm_request_region(dev, EC_HOST_CMD_REGION1,
+ EC_HOST_CMD_REGION_SIZE, dev_name(dev))) {
+ dev_err(dev, "couldn't reserve region1\n");
+ return -EBUSY;
+ }
+
+ ec_dev = devm_kzalloc(dev, sizeof(*ec_dev), GFP_KERNEL);
+ if (!ec_dev)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, ec_dev);
+ ec_dev->dev = dev;
+ ec_dev->ec_name = pdev->name;
+ ec_dev->phys_name = dev_name(dev);
+ ec_dev->parent = dev;
+ ec_dev->cmd_xfer = cros_ec_cmd_xfer_lpc;
+ ec_dev->cmd_readmem = cros_ec_lpc_readmem;
+
+ ret = cros_ec_register(ec_dev);
+ if (ret) {
+ dev_err(dev, "couldn't register ec_dev (%d)\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int cros_ec_lpc_remove(struct platform_device *pdev)
+{
+ struct cros_ec_device *ec_dev;
+
+ ec_dev = platform_get_drvdata(pdev);
+ cros_ec_remove(ec_dev);
+
+ return 0;
+}
+
+static struct dmi_system_id cros_ec_lpc_dmi_table[] __initdata = {
+ {
+ /*
+ * Today all Chromebooks/boxes ship with Google_* as version and
+ * coreboot as bios vendor. No other systems with this
+ * combination are known to date.
+ */
+ .matches = {
+ DMI_MATCH(DMI_BIOS_VENDOR, "coreboot"),
+ DMI_MATCH(DMI_BIOS_VERSION, "Google_"),
+ },
+ },
+ {
+ /* x86-link, the Chromebook Pixel. */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
+ },
+ },
+ {
+ /* x86-peppy, the Acer C720 Chromebook. */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Peppy"),
+ },
+ },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(dmi, cros_ec_lpc_dmi_table);
+
+static struct platform_driver cros_ec_lpc_driver = {
+ .driver = {
+ .name = DRV_NAME,
+ },
+ .probe = cros_ec_lpc_probe,
+ .remove = cros_ec_lpc_remove,
+};
+
+static struct platform_device cros_ec_lpc_device = {
+ .name = DRV_NAME
+};
+
+static int __init cros_ec_lpc_init(void)
+{
+ int ret;
+
+ if (!dmi_check_system(cros_ec_lpc_dmi_table)) {
+ pr_err(DRV_NAME ": unsupported system.\n");
+ return -ENODEV;
+ }
+
+ /* Register the driver */
+ ret = platform_driver_register(&cros_ec_lpc_driver);
+ if (ret) {
+ pr_err(DRV_NAME ": can't register driver: %d\n", ret);
+ return ret;
+ }
+
+ /* Register the device, and it'll get hooked up automatically */
+ ret = platform_device_register(&cros_ec_lpc_device);
+ if (ret) {
+ pr_err(DRV_NAME ": can't register device: %d\n", ret);
+ platform_driver_unregister(&cros_ec_lpc_driver);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void __exit cros_ec_lpc_exit(void)
+{
+ platform_device_unregister(&cros_ec_lpc_device);
+ platform_driver_unregister(&cros_ec_lpc_driver);
+}
+
+module_init(cros_ec_lpc_init);
+module_exit(cros_ec_lpc_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("ChromeOS EC LPC driver");
diff --git a/drivers/platform/chrome/cros_ec_sysfs.c b/drivers/platform/chrome/cros_ec_sysfs.c
new file mode 100644
index 0000000..fb62ab6
--- /dev/null
+++ b/drivers/platform/chrome/cros_ec_sysfs.c
@@ -0,0 +1,271 @@
+/*
+ * cros_ec_sysfs - expose the Chrome OS EC through sysfs
+ *
+ * Copyright (C) 2014 Google, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define pr_fmt(fmt) "cros_ec_sysfs: " fmt
+
+#include <linux/ctype.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/fs.h>
+#include <linux/kobject.h>
+#include <linux/mfd/cros_ec.h>
+#include <linux/mfd/cros_ec_commands.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/printk.h>
+#include <linux/stat.h>
+#include <linux/types.h>
+#include <linux/uaccess.h>
+
+#include "cros_ec_dev.h"
+
+/* Accessor functions */
+
+static ssize_t show_ec_reboot(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int count = 0;
+
+ count += scnprintf(buf + count, PAGE_SIZE - count,
+ "ro|rw|cancel|cold|disable-jump|hibernate");
+ count += scnprintf(buf + count, PAGE_SIZE - count,
+ " [at-shutdown]\n");
+ return count;
+}
+
+static ssize_t store_ec_reboot(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ static const struct {
+ const char * const str;
+ uint8_t cmd;
+ uint8_t flags;
+ } words[] = {
+ {"cancel", EC_REBOOT_CANCEL, 0},
+ {"ro", EC_REBOOT_JUMP_RO, 0},
+ {"rw", EC_REBOOT_JUMP_RW, 0},
+ {"cold", EC_REBOOT_COLD, 0},
+ {"disable-jump", EC_REBOOT_DISABLE_JUMP, 0},
+ {"hibernate", EC_REBOOT_HIBERNATE, 0},
+ {"at-shutdown", -1, EC_REBOOT_FLAG_ON_AP_SHUTDOWN},
+ };
+ struct cros_ec_command msg = { 0 };
+ struct ec_params_reboot_ec *param =
+ (struct ec_params_reboot_ec *)msg.outdata;
+ int got_cmd = 0, offset = 0;
+ int i;
+ int ret;
+ struct cros_ec_device *ec = dev_get_drvdata(dev);
+
+ param->flags = 0;
+ while (1) {
+ /* Find word to start scanning */
+ while (buf[offset] && isspace(buf[offset]))
+ offset++;
+ if (!buf[offset])
+ break;
+
+ for (i = 0; i < ARRAY_SIZE(words); i++) {
+ if (!strncasecmp(words[i].str, buf+offset,
+ strlen(words[i].str))) {
+ if (words[i].flags) {
+ param->flags |= words[i].flags;
+ } else {
+ param->cmd = words[i].cmd;
+ got_cmd = 1;
+ }
+ break;
+ }
+ }
+
+ /* On to the next word, if any */
+ while (buf[offset] && !isspace(buf[offset]))
+ offset++;
+ }
+
+ if (!got_cmd)
+ return -EINVAL;
+
+ msg.command = EC_CMD_REBOOT_EC;
+ msg.outsize = sizeof(param);
+ ret = cros_ec_cmd_xfer(ec, &msg);
+ if (ret < 0)
+ return ret;
+ if (msg.result != EC_RES_SUCCESS) {
+ dev_dbg(ec->dev, "EC result %d\n", msg.result);
+ return -EINVAL;
+ }
+
+ return count;
+}
+
+static ssize_t show_ec_version(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ static const char * const image_names[] = {"unknown", "RO", "RW"};
+ struct ec_response_get_version *r_ver;
+ struct ec_response_get_chip_info *r_chip;
+ struct ec_response_board_version *r_board;
+ struct cros_ec_command msg = { 0 };
+ int ret;
+ int count = 0;
+ struct cros_ec_device *ec = dev_get_drvdata(dev);
+
+ /* Get versions. RW may change. */
+ msg.command = EC_CMD_GET_VERSION;
+ msg.insize = sizeof(*r_ver);
+ ret = cros_ec_cmd_xfer(ec, &msg);
+ if (ret < 0)
+ return ret;
+ if (msg.result != EC_RES_SUCCESS)
+ return scnprintf(buf, PAGE_SIZE,
+ "ERROR: EC returned %d\n", msg.result);
+
+ r_ver = (struct ec_response_get_version *)msg.indata;
+ /* Strings should be null-terminated, but let's be sure. */
+ r_ver->version_string_ro[sizeof(r_ver->version_string_ro) - 1] = '\0';
+ r_ver->version_string_rw[sizeof(r_ver->version_string_rw) - 1] = '\0';
+ count += scnprintf(buf + count, PAGE_SIZE - count,
+ "RO version: %s\n", r_ver->version_string_ro);
+ count += scnprintf(buf + count, PAGE_SIZE - count,
+ "RW version: %s\n", r_ver->version_string_rw);
+ count += scnprintf(buf + count, PAGE_SIZE - count,
+ "Firmware copy: %s\n",
+ (r_ver->current_image < ARRAY_SIZE(image_names) ?
+ image_names[r_ver->current_image] : "?"));
+
+ /* Get build info. */
+ msg.command = EC_CMD_GET_BUILD_INFO;
+ msg.insize = sizeof(msg.indata);
+ ret = cros_ec_cmd_xfer(ec, &msg);
+ if (ret < 0)
+ count += scnprintf(buf + count, PAGE_SIZE - count,
+ "Build info: XFER ERROR %d\n", ret);
+ else if (msg.result != EC_RES_SUCCESS)
+ count += scnprintf(buf + count, PAGE_SIZE - count,
+ "Build info: EC error %d\n", msg.result);
+ else {
+ msg.indata[sizeof(msg.indata) - 1] = '\0';
+ count += scnprintf(buf + count, PAGE_SIZE - count,
+ "Build info: %s\n", msg.indata);
+ }
+
+ /* Get chip info. */
+ msg.command = EC_CMD_GET_CHIP_INFO;
+ msg.insize = sizeof(*r_chip);
+ ret = cros_ec_cmd_xfer(ec, &msg);
+ if (ret < 0)
+ count += scnprintf(buf + count, PAGE_SIZE - count,
+ "Chip info: XFER ERROR %d\n", ret);
+ else if (msg.result != EC_RES_SUCCESS)
+ count += scnprintf(buf + count, PAGE_SIZE - count,
+ "Chip info: EC error %d\n", msg.result);
+ else {
+ r_chip = (struct ec_response_get_chip_info *)msg.indata;
+
+ r_chip->vendor[sizeof(r_chip->vendor) - 1] = '\0';
+ r_chip->name[sizeof(r_chip->name) - 1] = '\0';
+ r_chip->revision[sizeof(r_chip->revision) - 1] = '\0';
+ count += scnprintf(buf + count, PAGE_SIZE - count,
+ "Chip vendor: %s\n", r_chip->vendor);
+ count += scnprintf(buf + count, PAGE_SIZE - count,
+ "Chip name: %s\n", r_chip->name);
+ count += scnprintf(buf + count, PAGE_SIZE - count,
+ "Chip revision: %s\n", r_chip->revision);
+ }
+
+ /* Get board version */
+ msg.command = EC_CMD_GET_BOARD_VERSION;
+ msg.insize = sizeof(*r_board);
+ ret = cros_ec_cmd_xfer(ec, &msg);
+ if (ret < 0)
+ count += scnprintf(buf + count, PAGE_SIZE - count,
+ "Board version: XFER ERROR %d\n", ret);
+ else if (msg.result != EC_RES_SUCCESS)
+ count += scnprintf(buf + count, PAGE_SIZE - count,
+ "Board version: EC error %d\n", msg.result);
+ else {
+ r_board = (struct ec_response_board_version *)msg.indata;
+
+ count += scnprintf(buf + count, PAGE_SIZE - count,
+ "Board version: %d\n",
+ r_board->board_version);
+ }
+
+ return count;
+}
+
+static ssize_t show_ec_flashinfo(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct ec_response_flash_info *resp;
+ struct cros_ec_command msg = { 0 };
+ int ret;
+ struct cros_ec_device *ec = dev_get_drvdata(dev);
+
+ /* The flash info shouldn't ever change, but ask each time anyway. */
+ msg.command = EC_CMD_FLASH_INFO;
+ msg.insize = sizeof(*resp);
+ ret = cros_ec_cmd_xfer(ec, &msg);
+ if (ret < 0)
+ return ret;
+ if (msg.result != EC_RES_SUCCESS)
+ return scnprintf(buf, PAGE_SIZE,
+ "ERROR: EC returned %d\n", msg.result);
+
+ resp = (struct ec_response_flash_info *)msg.indata;
+
+ return scnprintf(buf, PAGE_SIZE,
+ "FlashSize %d\nWriteSize %d\n"
+ "EraseSize %d\nProtectSize %d\n",
+ resp->flash_size, resp->write_block_size,
+ resp->erase_block_size, resp->protect_block_size);
+}
+
+/* Module initialization */
+
+static DEVICE_ATTR(reboot, S_IWUSR | S_IRUGO, show_ec_reboot, store_ec_reboot);
+static DEVICE_ATTR(version, S_IRUGO, show_ec_version, NULL);
+static DEVICE_ATTR(flashinfo, S_IRUGO, show_ec_flashinfo, NULL);
+
+static struct attribute *__ec_attrs[] = {
+ &dev_attr_reboot.attr,
+ &dev_attr_version.attr,
+ &dev_attr_flashinfo.attr,
+ NULL,
+};
+
+static struct attribute_group ec_attr_group = {
+ .attrs = __ec_attrs,
+};
+
+void ec_dev_sysfs_init(struct cros_ec_device *ec)
+{
+ int error;
+
+ error = sysfs_create_group(&ec->vdev->kobj, &ec_attr_group);
+ if (error)
+ pr_warn("failed to create group: %d\n", error);
+}
+
+void ec_dev_sysfs_remove(struct cros_ec_device *ec)
+{
+ sysfs_remove_group(&ec->vdev->kobj, &ec_attr_group);
+}
diff --git a/drivers/platform/mips/Kconfig b/drivers/platform/mips/Kconfig
new file mode 100644
index 0000000..125e569
--- /dev/null
+++ b/drivers/platform/mips/Kconfig
@@ -0,0 +1,30 @@
+#
+# MIPS Platform Specific Drivers
+#
+
+menuconfig MIPS_PLATFORM_DEVICES
+ bool "MIPS Platform Specific Device Drivers"
+ default y
+ help
+ Say Y here to get to see options for device drivers of various
+ MIPS platforms, including vendor-specific netbook/laptop/desktop
+ extension and hardware monitor drivers. This option itself does
+ not add any kernel code.
+
+ If you say N, all options in this submenu will be skipped and disabled.
+
+if MIPS_PLATFORM_DEVICES
+
+config MIPS_ACPI
+ bool
+ default y if LOONGSON_MACH3X
+
+config CPU_HWMON
+ tristate "Loongson CPU HWMon Driver"
+ depends on LOONGSON_MACH3X
+ select HWMON
+ default y
+ help
+ Loongson-3A/3B CPU Hwmon (temperature sensor) driver.
+
+endif # MIPS_PLATFORM_DEVICES
diff --git a/drivers/platform/mips/Makefile b/drivers/platform/mips/Makefile
new file mode 100644
index 0000000..4341284
--- /dev/null
+++ b/drivers/platform/mips/Makefile
@@ -0,0 +1,2 @@
+obj-$(CONFIG_MIPS_ACPI) += acpi_init.o
+obj-$(CONFIG_CPU_HWMON) += cpu_hwmon.o
diff --git a/drivers/platform/mips/acpi_init.c b/drivers/platform/mips/acpi_init.c
new file mode 100644
index 0000000..dbdad79
--- /dev/null
+++ b/drivers/platform/mips/acpi_init.c
@@ -0,0 +1,150 @@
+#include <linux/io.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/export.h>
+
+#define SBX00_ACPI_IO_BASE 0x800
+#define SBX00_ACPI_IO_SIZE 0x100
+
+#define ACPI_PM_EVT_BLK (SBX00_ACPI_IO_BASE + 0x00) /* 4 bytes */
+#define ACPI_PM_CNT_BLK (SBX00_ACPI_IO_BASE + 0x04) /* 2 bytes */
+#define ACPI_PMA_CNT_BLK (SBX00_ACPI_IO_BASE + 0x0F) /* 1 byte */
+#define ACPI_PM_TMR_BLK (SBX00_ACPI_IO_BASE + 0x18) /* 4 bytes */
+#define ACPI_GPE0_BLK (SBX00_ACPI_IO_BASE + 0x10) /* 8 bytes */
+#define ACPI_END (SBX00_ACPI_IO_BASE + 0x80)
+
+#define PM_INDEX 0xCD6
+#define PM_DATA 0xCD7
+#define PM2_INDEX 0xCD0
+#define PM2_DATA 0xCD1
+
+/*
+ * SCI interrupt need acpi space, allocate here
+ */
+
+static int __init register_acpi_resource(void)
+{
+ request_region(SBX00_ACPI_IO_BASE, SBX00_ACPI_IO_SIZE, "acpi");
+ return 0;
+}
+
+static void pmio_write_index(u16 index, u8 reg, u8 value)
+{
+ outb(reg, index);
+ outb(value, index + 1);
+}
+
+static u8 pmio_read_index(u16 index, u8 reg)
+{
+ outb(reg, index);
+ return inb(index + 1);
+}
+
+void pm_iowrite(u8 reg, u8 value)
+{
+ pmio_write_index(PM_INDEX, reg, value);
+}
+EXPORT_SYMBOL(pm_iowrite);
+
+u8 pm_ioread(u8 reg)
+{
+ return pmio_read_index(PM_INDEX, reg);
+}
+EXPORT_SYMBOL(pm_ioread);
+
+void pm2_iowrite(u8 reg, u8 value)
+{
+ pmio_write_index(PM2_INDEX, reg, value);
+}
+EXPORT_SYMBOL(pm2_iowrite);
+
+u8 pm2_ioread(u8 reg)
+{
+ return pmio_read_index(PM2_INDEX, reg);
+}
+EXPORT_SYMBOL(pm2_ioread);
+
+static void acpi_hw_clear_status(void)
+{
+ u16 value;
+
+ /* PMStatus: Clear WakeStatus/PwrBtnStatus */
+ value = inw(ACPI_PM_EVT_BLK);
+ value |= (1 << 8 | 1 << 15);
+ outw(value, ACPI_PM_EVT_BLK);
+
+ /* GPEStatus: Clear all generated events */
+ outl(inl(ACPI_GPE0_BLK), ACPI_GPE0_BLK);
+}
+
+void acpi_registers_setup(void)
+{
+ u32 value;
+
+ /* PM Status Base */
+ pm_iowrite(0x20, ACPI_PM_EVT_BLK & 0xff);
+ pm_iowrite(0x21, ACPI_PM_EVT_BLK >> 8);
+
+ /* PM Control Base */
+ pm_iowrite(0x22, ACPI_PM_CNT_BLK & 0xff);
+ pm_iowrite(0x23, ACPI_PM_CNT_BLK >> 8);
+
+ /* GPM Base */
+ pm_iowrite(0x28, ACPI_GPE0_BLK & 0xff);
+ pm_iowrite(0x29, ACPI_GPE0_BLK >> 8);
+
+ /* ACPI End */
+ pm_iowrite(0x2e, ACPI_END & 0xff);
+ pm_iowrite(0x2f, ACPI_END >> 8);
+
+ /* IO Decode: When AcpiDecodeEnable set, South-Bridge uses the contents
+ * of the PM registers at index 0x20~0x2B to decode ACPI I/O address. */
+ pm_iowrite(0x0e, 1 << 3);
+
+ /* SCI_EN set */
+ outw(1, ACPI_PM_CNT_BLK);
+
+ /* Enable to generate SCI */
+ pm_iowrite(0x10, pm_ioread(0x10) | 1);
+
+ /* GPM3/GPM9 enable */
+ value = inl(ACPI_GPE0_BLK + 4);
+ outl(value | (1 << 14) | (1 << 22), ACPI_GPE0_BLK + 4);
+
+ /* Set GPM9 as input */
+ pm_iowrite(0x8d, pm_ioread(0x8d) & (~(1 << 1)));
+
+ /* Set GPM9 as non-output */
+ pm_iowrite(0x94, pm_ioread(0x94) | (1 << 3));
+
+ /* GPM3 config ACPI trigger SCIOUT */
+ pm_iowrite(0x33, pm_ioread(0x33) & (~(3 << 4)));
+
+ /* GPM9 config ACPI trigger SCIOUT */
+ pm_iowrite(0x3d, pm_ioread(0x3d) & (~(3 << 2)));
+
+ /* GPM3 config falling edge trigger */
+ pm_iowrite(0x37, pm_ioread(0x37) & (~(1 << 6)));
+
+ /* No wait for STPGNT# in ACPI Sx state */
+ pm_iowrite(0x7c, pm_ioread(0x7c) | (1 << 6));
+
+ /* Set GPM3 pull-down enable */
+ value = pm2_ioread(0xf6);
+ value |= ((1 << 7) | (1 << 3));
+ pm2_iowrite(0xf6, value);
+
+ /* Set GPM9 pull-down enable */
+ value = pm2_ioread(0xf8);
+ value |= ((1 << 5) | (1 << 1));
+ pm2_iowrite(0xf8, value);
+}
+
+int __init sbx00_acpi_init(void)
+{
+ register_acpi_resource();
+ acpi_registers_setup();
+ acpi_hw_clear_status();
+
+ return 0;
+}
diff --git a/drivers/platform/mips/cpu_hwmon.c b/drivers/platform/mips/cpu_hwmon.c
new file mode 100644
index 0000000..0f6c63e
--- /dev/null
+++ b/drivers/platform/mips/cpu_hwmon.c
@@ -0,0 +1,207 @@
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/reboot.h>
+#include <linux/jiffies.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+
+#include <loongson.h>
+#include <boot_param.h>
+#include <loongson_hwmon.h>
+
+/*
+ * Loongson-3 series cpu has two sensors inside,
+ * each of them from 0 to 255,
+ * if more than 127, that is dangerous.
+ * here only provide sensor1 data, because it always hot than sensor0
+ */
+int loongson3_cpu_temp(int cpu)
+{
+ u32 reg;
+
+ reg = LOONGSON_CHIPTEMP(cpu);
+ if (loongson_sysconf.cputype == Loongson_3A)
+ reg = (reg >> 8) & 0xff;
+ else if (loongson_sysconf.cputype == Loongson_3B)
+ reg = ((reg >> 8) & 0xff) - 100;
+
+ return (int)reg * 1000;
+}
+
+static struct device *cpu_hwmon_dev;
+
+static ssize_t get_hwmon_name(struct device *dev,
+ struct device_attribute *attr, char *buf);
+static SENSOR_DEVICE_ATTR(name, S_IRUGO, get_hwmon_name, NULL, 0);
+
+static struct attribute *cpu_hwmon_attributes[] = {
+ &sensor_dev_attr_name.dev_attr.attr,
+ NULL
+};
+
+/* Hwmon device attribute group */
+static struct attribute_group cpu_hwmon_attribute_group = {
+ .attrs = cpu_hwmon_attributes,
+};
+
+/* Hwmon device get name */
+static ssize_t get_hwmon_name(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "cpu-hwmon\n");
+}
+
+static ssize_t get_cpu0_temp(struct device *dev,
+ struct device_attribute *attr, char *buf);
+static ssize_t get_cpu1_temp(struct device *dev,
+ struct device_attribute *attr, char *buf);
+static ssize_t cpu0_temp_label(struct device *dev,
+ struct device_attribute *attr, char *buf);
+static ssize_t cpu1_temp_label(struct device *dev,
+ struct device_attribute *attr, char *buf);
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, get_cpu0_temp, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp1_label, S_IRUGO, cpu0_temp_label, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, get_cpu1_temp, NULL, 2);
+static SENSOR_DEVICE_ATTR(temp2_label, S_IRUGO, cpu1_temp_label, NULL, 2);
+
+static const struct attribute *hwmon_cputemp1[] = {
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_temp1_label.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute *hwmon_cputemp2[] = {
+ &sensor_dev_attr_temp2_input.dev_attr.attr,
+ &sensor_dev_attr_temp2_label.dev_attr.attr,
+ NULL
+};
+
+static ssize_t cpu0_temp_label(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "CPU 0 Temprature\n");
+}
+
+static ssize_t cpu1_temp_label(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "CPU 1 Temprature\n");
+}
+
+static ssize_t get_cpu0_temp(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int value = loongson3_cpu_temp(0);
+ return sprintf(buf, "%d\n", value);
+}
+
+static ssize_t get_cpu1_temp(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int value = loongson3_cpu_temp(1);
+ return sprintf(buf, "%d\n", value);
+}
+
+static int create_sysfs_cputemp_files(struct kobject *kobj)
+{
+ int ret;
+
+ ret = sysfs_create_files(kobj, hwmon_cputemp1);
+ if (ret)
+ goto sysfs_create_temp1_fail;
+
+ if (loongson_sysconf.nr_cpus <= loongson_sysconf.cores_per_package)
+ return 0;
+
+ ret = sysfs_create_files(kobj, hwmon_cputemp2);
+ if (ret)
+ goto sysfs_create_temp2_fail;
+
+ return 0;
+
+sysfs_create_temp2_fail:
+ sysfs_remove_files(kobj, hwmon_cputemp1);
+
+sysfs_create_temp1_fail:
+ return -1;
+}
+
+static void remove_sysfs_cputemp_files(struct kobject *kobj)
+{
+ sysfs_remove_files(&cpu_hwmon_dev->kobj, hwmon_cputemp1);
+
+ if (loongson_sysconf.nr_cpus > loongson_sysconf.cores_per_package)
+ sysfs_remove_files(&cpu_hwmon_dev->kobj, hwmon_cputemp2);
+}
+
+#define CPU_THERMAL_THRESHOLD 90000
+static struct delayed_work thermal_work;
+
+static void do_thermal_timer(struct work_struct *work)
+{
+ int value = loongson3_cpu_temp(0);
+ if (value <= CPU_THERMAL_THRESHOLD)
+ schedule_delayed_work(&thermal_work, msecs_to_jiffies(5000));
+ else
+ orderly_poweroff(true);
+}
+
+static int __init loongson_hwmon_init(void)
+{
+ int ret;
+
+ pr_info("Loongson Hwmon Enter...\n");
+
+ cpu_hwmon_dev = hwmon_device_register(NULL);
+ if (IS_ERR(cpu_hwmon_dev)) {
+ ret = -ENOMEM;
+ pr_err("hwmon_device_register fail!\n");
+ goto fail_hwmon_device_register;
+ }
+
+ ret = sysfs_create_group(&cpu_hwmon_dev->kobj,
+ &cpu_hwmon_attribute_group);
+ if (ret) {
+ pr_err("fail to create loongson hwmon!\n");
+ goto fail_sysfs_create_group_hwmon;
+ }
+
+ ret = create_sysfs_cputemp_files(&cpu_hwmon_dev->kobj);
+ if (ret) {
+ pr_err("fail to create cpu temprature interface!\n");
+ goto fail_create_sysfs_cputemp_files;
+ }
+
+ INIT_DEFERRABLE_WORK(&thermal_work, do_thermal_timer);
+ schedule_delayed_work(&thermal_work, msecs_to_jiffies(20000));
+
+ return ret;
+
+fail_create_sysfs_cputemp_files:
+ sysfs_remove_group(&cpu_hwmon_dev->kobj,
+ &cpu_hwmon_attribute_group);
+
+fail_sysfs_create_group_hwmon:
+ hwmon_device_unregister(cpu_hwmon_dev);
+
+fail_hwmon_device_register:
+ return ret;
+}
+
+static void __exit loongson_hwmon_exit(void)
+{
+ cancel_delayed_work_sync(&thermal_work);
+ remove_sysfs_cputemp_files(&cpu_hwmon_dev->kobj);
+ sysfs_remove_group(&cpu_hwmon_dev->kobj,
+ &cpu_hwmon_attribute_group);
+ hwmon_device_unregister(cpu_hwmon_dev);
+}
+
+module_init(loongson_hwmon_init);
+module_exit(loongson_hwmon_exit);
+
+MODULE_AUTHOR("Yu Xiang <xiangy@lemote.com>");
+MODULE_AUTHOR("Huacai Chen <chenhc@lemote.com>");
+MODULE_DESCRIPTION("Loongson CPU Hwmon driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c
index e743b03..6808715 100644
--- a/drivers/platform/x86/apple-gmux.c
+++ b/drivers/platform/x86/apple-gmux.c
@@ -670,19 +670,7 @@ static struct pnp_driver gmux_pnp_driver = {
},
};
-static int __init apple_gmux_init(void)
-{
- return pnp_register_driver(&gmux_pnp_driver);
-}
-
-static void __exit apple_gmux_exit(void)
-{
- pnp_unregister_driver(&gmux_pnp_driver);
-}
-
-module_init(apple_gmux_init);
-module_exit(apple_gmux_exit);
-
+module_pnp_driver(gmux_pnp_driver);
MODULE_AUTHOR("Seth Forshee <seth.forshee@canonical.com>");
MODULE_DESCRIPTION("Apple Gmux Driver");
MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c
index 15c0fab..b4e9447 100644
--- a/drivers/platform/x86/compal-laptop.c
+++ b/drivers/platform/x86/compal-laptop.c
@@ -177,7 +177,7 @@ struct compal_data{
unsigned char curr_pwm;
/* Power supply */
- struct power_supply psy;
+ struct power_supply *psy;
struct power_supply_info psy_info;
char bat_model_name[BAT_MODEL_NAME_LEN + 1];
char bat_manufacturer_name[BAT_MANUFACTURER_NAME_LEN + 1];
@@ -565,8 +565,7 @@ static int bat_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
- struct compal_data *data;
- data = container_of(psy, struct compal_data, psy);
+ struct compal_data *data = power_supply_get_drvdata(psy);
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
@@ -875,13 +874,16 @@ static struct dmi_system_id __initdata compal_dmi_table[] = {
};
MODULE_DEVICE_TABLE(dmi, compal_dmi_table);
+static const struct power_supply_desc psy_bat_desc = {
+ .name = DRIVER_NAME,
+ .type = POWER_SUPPLY_TYPE_BATTERY,
+ .properties = compal_bat_properties,
+ .num_properties = ARRAY_SIZE(compal_bat_properties),
+ .get_property = bat_get_property,
+};
+
static void initialize_power_supply_data(struct compal_data *data)
{
- data->psy.name = DRIVER_NAME;
- data->psy.type = POWER_SUPPLY_TYPE_BATTERY;
- data->psy.properties = compal_bat_properties;
- data->psy.num_properties = ARRAY_SIZE(compal_bat_properties);
- data->psy.get_property = bat_get_property;
ec_read_sequence(BAT_MANUFACTURER_NAME_ADDR,
data->bat_manufacturer_name,
@@ -1011,6 +1013,7 @@ static int compal_probe(struct platform_device *pdev)
int err;
struct compal_data *data;
struct device *hwmon_dev;
+ struct power_supply_config psy_cfg = {};
if (!extra_features)
return 0;
@@ -1026,9 +1029,9 @@ static int compal_probe(struct platform_device *pdev)
if (err)
return err;
- hwmon_dev = hwmon_device_register_with_groups(&pdev->dev,
- "compal", data,
- compal_hwmon_groups);
+ hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev,
+ "compal", data,
+ compal_hwmon_groups);
if (IS_ERR(hwmon_dev)) {
err = PTR_ERR(hwmon_dev);
goto remove;
@@ -1036,7 +1039,13 @@ static int compal_probe(struct platform_device *pdev)
/* Power supply */
initialize_power_supply_data(data);
- power_supply_register(&compal_device->dev, &data->psy);
+ psy_cfg.drv_data = data;
+ data->psy = power_supply_register(&compal_device->dev, &psy_bat_desc,
+ &psy_cfg);
+ if (IS_ERR(data->psy)) {
+ err = PTR_ERR(data->psy);
+ goto remove;
+ }
platform_set_drvdata(pdev, data);
@@ -1071,7 +1080,7 @@ static int compal_remove(struct platform_device *pdev)
pwm_disable_control();
data = platform_get_drvdata(pdev);
- power_supply_unregister(&data->psy);
+ power_supply_unregister(data->psy);
sysfs_remove_group(&pdev->dev.kobj, &compal_platform_attr_group);
diff --git a/drivers/platform/x86/fujitsu-tablet.c b/drivers/platform/x86/fujitsu-tablet.c
index 53bdbb0..baea077 100644
--- a/drivers/platform/x86/fujitsu-tablet.c
+++ b/drivers/platform/x86/fujitsu-tablet.c
@@ -59,7 +59,7 @@ static unsigned short keymap_Lifebook_Tseries[KEYMAP_LEN] __initdata = {
KEY_RESERVED,
KEY_SCROLLDOWN,
KEY_SCROLLUP,
- KEY_DIRECTION,
+ KEY_ROTATE_DISPLAY,
KEY_LEFTCTRL,
KEY_BRIGHTNESSUP,
KEY_BRIGHTNESSDOWN,
@@ -116,7 +116,7 @@ static unsigned short keymap_Lifebook_U810[KEYMAP_LEN] __initdata = {
KEY_RESERVED,
KEY_PROG1,
KEY_PROG2,
- KEY_DIRECTION,
+ KEY_ROTATE_DISPLAY,
KEY_RESERVED,
KEY_RESERVED,
KEY_RESERVED,
@@ -153,7 +153,7 @@ static unsigned short keymap_Stylistic_ST5xxx[KEYMAP_LEN] __initdata = {
KEY_RESERVED,
KEY_RESERVED,
KEY_MAIL,
- KEY_DIRECTION,
+ KEY_ROTATE_DISPLAY,
KEY_ESC,
KEY_ENTER,
KEY_BRIGHTNESSUP,
diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 0ab2b37..0669731 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -144,7 +144,7 @@ static const struct key_entry hp_wmi_keymap[] = {
{ KE_KEY, 0x20e8, { KEY_MEDIA } },
{ KE_KEY, 0x2142, { KEY_MEDIA } },
{ KE_KEY, 0x213b, { KEY_INFO } },
- { KE_KEY, 0x2169, { KEY_DIRECTION } },
+ { KE_KEY, 0x2169, { KEY_ROTATE_DISPLAY } },
{ KE_KEY, 0x216a, { KEY_SETUP } },
{ KE_KEY, 0x231b, { KEY_HELP } },
{ KE_END, 0 }
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