diff options
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/Kconfig | 10 | ||||
| -rw-r--r-- | drivers/misc/Makefile | 1 | ||||
| -rw-r--r-- | drivers/misc/bh1780gli.c | 259 | ||||
| -rw-r--r-- | drivers/misc/lkdtm_rodata.c | 2 | ||||
| -rw-r--r-- | drivers/misc/lkdtm_usercopy.c | 25 | ||||
| -rw-r--r-- | drivers/misc/mei/hw-me.c | 10 | ||||
| -rw-r--r-- | drivers/misc/mei/pci-me.c | 4 |
7 files changed, 28 insertions, 283 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index a216b4667742..d00252828966 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -345,16 +345,6 @@ config SENSORS_TSL2550 This driver can also be built as a module. If so, the module will be called tsl2550. -config SENSORS_BH1780 - tristate "ROHM BH1780GLI ambient light sensor" - depends on I2C && SYSFS - help - If you say yes here you get support for the ROHM BH1780GLI - ambient light sensor. - - This driver can also be built as a module. If so, the module - will be called bh1780gli. - config SENSORS_BH1770 tristate "BH1770GLC / SFH7770 combined ALS - Proximity sensor" depends on I2C diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index 7410c6d9a34d..fb32516ddfe2 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -19,7 +19,6 @@ obj-$(CONFIG_TIFM_CORE) += tifm_core.o obj-$(CONFIG_TIFM_7XX1) += tifm_7xx1.o obj-$(CONFIG_PHANTOM) += phantom.o obj-$(CONFIG_QCOM_COINCELL) += qcom-coincell.o -obj-$(CONFIG_SENSORS_BH1780) += bh1780gli.o obj-$(CONFIG_SENSORS_BH1770) += bh1770glc.o obj-$(CONFIG_SENSORS_APDS990X) += apds990x.o obj-$(CONFIG_SGI_IOC4) += ioc4.o diff --git a/drivers/misc/bh1780gli.c b/drivers/misc/bh1780gli.c deleted file mode 100644 index 7f90ce5a569a..000000000000 --- a/drivers/misc/bh1780gli.c +++ /dev/null @@ -1,259 +0,0 @@ -/* - * bh1780gli.c - * ROHM Ambient Light Sensor Driver - * - * Copyright (C) 2010 Texas Instruments - * Author: Hemanth V <hemanthv@ti.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 as published by - * the Free Software Foundation. - * - * 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/i2c.h> -#include <linux/slab.h> -#include <linux/mutex.h> -#include <linux/platform_device.h> -#include <linux/delay.h> -#include <linux/module.h> -#include <linux/of.h> - -#define BH1780_REG_CONTROL 0x80 -#define BH1780_REG_PARTID 0x8A -#define BH1780_REG_MANFID 0x8B -#define BH1780_REG_DLOW 0x8C -#define BH1780_REG_DHIGH 0x8D - -#define BH1780_REVMASK (0xf) -#define BH1780_POWMASK (0x3) -#define BH1780_POFF (0x0) -#define BH1780_PON (0x3) - -/* power on settling time in ms */ -#define BH1780_PON_DELAY 2 - -struct bh1780_data { - struct i2c_client *client; - int power_state; - /* lock for sysfs operations */ - struct mutex lock; -}; - -static int bh1780_write(struct bh1780_data *ddata, u8 reg, u8 val, char *msg) -{ - int ret = i2c_smbus_write_byte_data(ddata->client, reg, val); - if (ret < 0) - dev_err(&ddata->client->dev, - "i2c_smbus_write_byte_data failed error %d Register (%s)\n", - ret, msg); - return ret; -} - -static int bh1780_read(struct bh1780_data *ddata, u8 reg, char *msg) -{ - int ret = i2c_smbus_read_byte_data(ddata->client, reg); - if (ret < 0) - dev_err(&ddata->client->dev, - "i2c_smbus_read_byte_data failed error %d Register (%s)\n", - ret, msg); - return ret; -} - -static ssize_t bh1780_show_lux(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct platform_device *pdev = to_platform_device(dev); - struct bh1780_data *ddata = platform_get_drvdata(pdev); - int lsb, msb; - - lsb = bh1780_read(ddata, BH1780_REG_DLOW, "DLOW"); - if (lsb < 0) - return lsb; - - msb = bh1780_read(ddata, BH1780_REG_DHIGH, "DHIGH"); - if (msb < 0) - return msb; - - return sprintf(buf, "%d\n", (msb << 8) | lsb); -} - -static ssize_t bh1780_show_power_state(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct platform_device *pdev = to_platform_device(dev); - struct bh1780_data *ddata = platform_get_drvdata(pdev); - int state; - - state = bh1780_read(ddata, BH1780_REG_CONTROL, "CONTROL"); - if (state < 0) - return state; - - return sprintf(buf, "%d\n", state & BH1780_POWMASK); -} - -static ssize_t bh1780_store_power_state(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - struct platform_device *pdev = to_platform_device(dev); - struct bh1780_data *ddata = platform_get_drvdata(pdev); - unsigned long val; - int error; - - error = kstrtoul(buf, 0, &val); - if (error) - return error; - - if (val < BH1780_POFF || val > BH1780_PON) - return -EINVAL; - - mutex_lock(&ddata->lock); - - error = bh1780_write(ddata, BH1780_REG_CONTROL, val, "CONTROL"); - if (error < 0) { - mutex_unlock(&ddata->lock); - return error; - } - - msleep(BH1780_PON_DELAY); - ddata->power_state = val; - mutex_unlock(&ddata->lock); - - return count; -} - -static DEVICE_ATTR(lux, S_IRUGO, bh1780_show_lux, NULL); - -static DEVICE_ATTR(power_state, S_IWUSR | S_IRUGO, - bh1780_show_power_state, bh1780_store_power_state); - -static struct attribute *bh1780_attributes[] = { - &dev_attr_power_state.attr, - &dev_attr_lux.attr, - NULL -}; - -static const struct attribute_group bh1780_attr_group = { - .attrs = bh1780_attributes, -}; - -static int bh1780_probe(struct i2c_client *client, - const struct i2c_device_id *id) -{ - int ret; - struct bh1780_data *ddata; - struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); - - if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE)) - return -EIO; - - ddata = devm_kzalloc(&client->dev, sizeof(struct bh1780_data), - GFP_KERNEL); - if (ddata == NULL) - return -ENOMEM; - - ddata->client = client; - i2c_set_clientdata(client, ddata); - - ret = bh1780_read(ddata, BH1780_REG_PARTID, "PART ID"); - if (ret < 0) - return ret; - - dev_info(&client->dev, "Ambient Light Sensor, Rev : %d\n", - (ret & BH1780_REVMASK)); - - mutex_init(&ddata->lock); - - return sysfs_create_group(&client->dev.kobj, &bh1780_attr_group); -} - -static int bh1780_remove(struct i2c_client *client) -{ - sysfs_remove_group(&client->dev.kobj, &bh1780_attr_group); - - return 0; -} - -#ifdef CONFIG_PM_SLEEP -static int bh1780_suspend(struct device *dev) -{ - struct bh1780_data *ddata; - int state, ret; - struct i2c_client *client = to_i2c_client(dev); - - ddata = i2c_get_clientdata(client); - state = bh1780_read(ddata, BH1780_REG_CONTROL, "CONTROL"); - if (state < 0) - return state; - - ddata->power_state = state & BH1780_POWMASK; - - ret = bh1780_write(ddata, BH1780_REG_CONTROL, BH1780_POFF, - "CONTROL"); - - if (ret < 0) - return ret; - - return 0; -} - -static int bh1780_resume(struct device *dev) -{ - struct bh1780_data *ddata; - int state, ret; - struct i2c_client *client = to_i2c_client(dev); - - ddata = i2c_get_clientdata(client); - state = ddata->power_state; - ret = bh1780_write(ddata, BH1780_REG_CONTROL, state, - "CONTROL"); - - if (ret < 0) - return ret; - - return 0; -} -#endif /* CONFIG_PM_SLEEP */ - -static SIMPLE_DEV_PM_OPS(bh1780_pm, bh1780_suspend, bh1780_resume); - -static const struct i2c_device_id bh1780_id[] = { - { "bh1780", 0 }, - { }, -}; - -MODULE_DEVICE_TABLE(i2c, bh1780_id); - -#ifdef CONFIG_OF -static const struct of_device_id of_bh1780_match[] = { - { .compatible = "rohm,bh1780gli", }, - {}, -}; - -MODULE_DEVICE_TABLE(of, of_bh1780_match); -#endif - -static struct i2c_driver bh1780_driver = { - .probe = bh1780_probe, - .remove = bh1780_remove, - .id_table = bh1780_id, - .driver = { - .name = "bh1780", - .pm = &bh1780_pm, - .of_match_table = of_match_ptr(of_bh1780_match), - }, -}; - -module_i2c_driver(bh1780_driver); - -MODULE_DESCRIPTION("BH1780GLI Ambient Light Sensor Driver"); -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Hemanth V <hemanthv@ti.com>"); diff --git a/drivers/misc/lkdtm_rodata.c b/drivers/misc/lkdtm_rodata.c index 166b1db3969f..3564477b8c2d 100644 --- a/drivers/misc/lkdtm_rodata.c +++ b/drivers/misc/lkdtm_rodata.c @@ -4,7 +4,7 @@ */ #include "lkdtm.h" -void lkdtm_rodata_do_nothing(void) +void notrace lkdtm_rodata_do_nothing(void) { /* Does nothing. We just want an architecture agnostic "return". */ } diff --git a/drivers/misc/lkdtm_usercopy.c b/drivers/misc/lkdtm_usercopy.c index 5525a204db93..1dd611423d8b 100644 --- a/drivers/misc/lkdtm_usercopy.c +++ b/drivers/misc/lkdtm_usercopy.c @@ -9,7 +9,15 @@ #include <linux/uaccess.h> #include <asm/cacheflush.h> -static size_t cache_size = 1024; +/* + * Many of the tests here end up using const sizes, but those would + * normally be ignored by hardened usercopy, so force the compiler + * into choosing the non-const path to make sure we trigger the + * hardened usercopy checks by added "unconst" to all the const copies, + * and making sure "cache_size" isn't optimized into a const. + */ +static volatile size_t unconst = 0; +static volatile size_t cache_size = 1024; static struct kmem_cache *bad_cache; static const unsigned char test_text[] = "This is a test.\n"; @@ -67,14 +75,14 @@ static noinline void do_usercopy_stack(bool to_user, bool bad_frame) if (to_user) { pr_info("attempting good copy_to_user of local stack\n"); if (copy_to_user((void __user *)user_addr, good_stack, - sizeof(good_stack))) { + unconst + sizeof(good_stack))) { pr_warn("copy_to_user failed unexpectedly?!\n"); goto free_user; } pr_info("attempting bad copy_to_user of distant stack\n"); if (copy_to_user((void __user *)user_addr, bad_stack, - sizeof(good_stack))) { + unconst + sizeof(good_stack))) { pr_warn("copy_to_user failed, but lacked Oops\n"); goto free_user; } @@ -88,14 +96,14 @@ static noinline void do_usercopy_stack(bool to_user, bool bad_frame) pr_info("attempting good copy_from_user of local stack\n"); if (copy_from_user(good_stack, (void __user *)user_addr, - sizeof(good_stack))) { + unconst + sizeof(good_stack))) { pr_warn("copy_from_user failed unexpectedly?!\n"); goto free_user; } pr_info("attempting bad copy_from_user of distant stack\n"); if (copy_from_user(bad_stack, (void __user *)user_addr, - sizeof(good_stack))) { + unconst + sizeof(good_stack))) { pr_warn("copy_from_user failed, but lacked Oops\n"); goto free_user; } @@ -109,7 +117,7 @@ static void do_usercopy_heap_size(bool to_user) { unsigned long user_addr; unsigned char *one, *two; - const size_t size = 1024; + size_t size = unconst + 1024; one = kmalloc(size, GFP_KERNEL); two = kmalloc(size, GFP_KERNEL); @@ -285,13 +293,14 @@ void lkdtm_USERCOPY_KERNEL(void) pr_info("attempting good copy_to_user from kernel rodata\n"); if (copy_to_user((void __user *)user_addr, test_text, - sizeof(test_text))) { + unconst + sizeof(test_text))) { pr_warn("copy_to_user failed unexpectedly?!\n"); goto free_user; } pr_info("attempting bad copy_to_user from kernel text\n"); - if (copy_to_user((void __user *)user_addr, vm_mmap, PAGE_SIZE)) { + if (copy_to_user((void __user *)user_addr, vm_mmap, + unconst + PAGE_SIZE)) { pr_warn("copy_to_user failed, but lacked Oops\n"); goto free_user; } diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index e2fb44cc5c37..dc3a854e02d3 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -1263,8 +1263,14 @@ static bool mei_me_fw_type_nm(struct pci_dev *pdev) static bool mei_me_fw_type_sps(struct pci_dev *pdev) { u32 reg; - /* Read ME FW Status check for SPS Firmware */ - pci_read_config_dword(pdev, PCI_CFG_HFS_1, ®); + unsigned int devfn; + + /* + * Read ME FW Status register to check for SPS Firmware + * The SPS FW is only signaled in pci function 0 + */ + devfn = PCI_DEVFN(PCI_SLOT(pdev->devfn), 0); + pci_bus_read_config_dword(pdev->bus, devfn, PCI_CFG_HFS_1, ®); trace_mei_pci_cfg_read(&pdev->dev, "PCI_CFG_HFS_1", PCI_CFG_HFS_1, reg); /* if bits [19:16] = 15, running SPS Firmware */ return (reg & 0xf0000) == 0xf0000; diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c index 64e64da6da44..71cea9b296b2 100644 --- a/drivers/misc/mei/pci-me.c +++ b/drivers/misc/mei/pci-me.c @@ -85,8 +85,8 @@ static const struct pci_device_id mei_me_pci_tbl[] = { {MEI_PCI_DEVICE(MEI_DEV_ID_SPT, mei_me_pch8_cfg)}, {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_2, mei_me_pch8_cfg)}, - {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H, mei_me_pch8_cfg)}, - {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H_2, mei_me_pch8_cfg)}, + {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H, mei_me_pch8_sps_cfg)}, + {MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H_2, mei_me_pch8_sps_cfg)}, {MEI_PCI_DEVICE(MEI_DEV_ID_BXT_M, mei_me_pch8_cfg)}, {MEI_PCI_DEVICE(MEI_DEV_ID_APL_I, mei_me_pch8_cfg)}, |