diff options
Diffstat (limited to 'drivers/misc')
67 files changed, 7310 insertions, 519 deletions
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 8dacd4c9ee87..a3e291d0df9a 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -381,19 +381,6 @@ config HMC6352 This driver provides support for the Honeywell HMC6352 compass, providing configuration and heading data via sysfs. -config EP93XX_PWM - tristate "EP93xx PWM support" - depends on ARCH_EP93XX - help - This option enables device driver support for the PWM channels - on the Cirrus EP93xx processors. The EP9307 chip only has one - PWM channel all the others have two, the second channel is an - alternate function of the EGPIO14 pin. A sysfs interface is - provided to control the PWM channels. - - To compile this driver as a module, choose M here: the module will - be called ep93xx_pwm. - config DS1682 tristate "Dallas DS1682 Total Elapsed Time Recorder with Alarm" depends on I2C @@ -537,4 +524,5 @@ source "drivers/misc/carma/Kconfig" source "drivers/misc/altera-stapl/Kconfig" source "drivers/misc/mei/Kconfig" source "drivers/misc/vmw_vmci/Kconfig" +source "drivers/misc/mic/Kconfig" endmenu diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index c235d5b68311..f45473e68bf7 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -33,7 +33,6 @@ obj-$(CONFIG_APDS9802ALS) += apds9802als.o obj-$(CONFIG_ISL29003) += isl29003.o obj-$(CONFIG_ISL29020) += isl29020.o obj-$(CONFIG_SENSORS_TSL2550) += tsl2550.o -obj-$(CONFIG_EP93XX_PWM) += ep93xx_pwm.o obj-$(CONFIG_DS1682) += ds1682.o obj-$(CONFIG_TI_DAC7512) += ti_dac7512.o obj-$(CONFIG_C2PORT) += c2port/ @@ -53,3 +52,4 @@ obj-$(CONFIG_INTEL_MEI) += mei/ obj-$(CONFIG_VMWARE_VMCI) += vmw_vmci/ obj-$(CONFIG_LATTICE_ECP3_CONFIG) += lattice-ecp3-config.o obj-$(CONFIG_SRAM) += sram.o +obj-y += mic/ diff --git a/drivers/misc/arm-charlcd.c b/drivers/misc/arm-charlcd.c index 1256a4bf1c04..b7ebf8021d99 100644 --- a/drivers/misc/arm-charlcd.c +++ b/drivers/misc/arm-charlcd.c @@ -297,7 +297,7 @@ static int __init charlcd_probe(struct platform_device *pdev) lcd->irq = platform_get_irq(pdev, 0); /* If no IRQ is supplied, we'll survive without it */ if (lcd->irq >= 0) { - if (request_irq(lcd->irq, charlcd_interrupt, IRQF_DISABLED, + if (request_irq(lcd->irq, charlcd_interrupt, 0, DRIVERNAME, lcd)) { ret = -EIO; goto out_no_irq; diff --git a/drivers/misc/atmel_pwm.c b/drivers/misc/atmel_pwm.c index 494d0500bda6..a6dc56e1bc58 100644 --- a/drivers/misc/atmel_pwm.c +++ b/drivers/misc/atmel_pwm.c @@ -90,8 +90,10 @@ int pwm_channel_alloc(int index, struct pwm_channel *ch) unsigned long flags; int status = 0; - /* insist on PWM init, with this signal pinned out */ - if (!pwm || !(pwm->mask & 1 << index)) + if (!pwm) + return -EPROBE_DEFER; + + if (!(pwm->mask & 1 << index)) return -ENODEV; if (index < 0 || index >= PWM_NCHAN || !ch) diff --git a/drivers/misc/bh1780gli.c b/drivers/misc/bh1780gli.c index 057580e026c0..48ea33d15a79 100644 --- a/drivers/misc/bh1780gli.c +++ b/drivers/misc/bh1780gli.c @@ -23,6 +23,7 @@ #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 @@ -244,6 +245,15 @@ static const struct i2c_device_id 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, @@ -251,6 +261,7 @@ static struct i2c_driver bh1780_driver = { .driver = { .name = "bh1780", .pm = &bh1780_pm, + .of_match_table = of_match_ptr(of_bh1780_match), }, }; diff --git a/drivers/misc/bmp085.c b/drivers/misc/bmp085.c index 849e2fed4da2..2704d885a9b3 100644 --- a/drivers/misc/bmp085.c +++ b/drivers/misc/bmp085.c @@ -374,7 +374,7 @@ int bmp085_detect(struct device *dev) } EXPORT_SYMBOL_GPL(bmp085_detect); -static void __init bmp085_get_of_properties(struct bmp085_data *data) +static void bmp085_get_of_properties(struct bmp085_data *data) { #ifdef CONFIG_OF struct device_node *np = data->dev->of_node; diff --git a/drivers/misc/carma/carma-fpga-program.c b/drivers/misc/carma/carma-fpga-program.c index c6bd7e84de24..7be89832db19 100644 --- a/drivers/misc/carma/carma-fpga-program.c +++ b/drivers/misc/carma/carma-fpga-program.c @@ -10,6 +10,8 @@ */ #include <linux/dma-mapping.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> #include <linux/of_platform.h> #include <linux/completion.h> #include <linux/miscdevice.h> diff --git a/drivers/misc/carma/carma-fpga.c b/drivers/misc/carma/carma-fpga.c index 5335104e7c84..9e2b985293fc 100644 --- a/drivers/misc/carma/carma-fpga.c +++ b/drivers/misc/carma/carma-fpga.c @@ -88,6 +88,8 @@ * interrupt source to the GPIO pin. Tada, we hid the interrupt. :) */ +#include <linux/of_address.h> +#include <linux/of_irq.h> #include <linux/of_platform.h> #include <linux/dma-mapping.h> #include <linux/miscdevice.h> diff --git a/drivers/misc/cb710/core.c b/drivers/misc/cb710/core.c index 2e50f811ff59..fb397e7d1cce 100644 --- a/drivers/misc/cb710/core.c +++ b/drivers/misc/cb710/core.c @@ -176,7 +176,7 @@ static int cb710_suspend(struct pci_dev *pdev, pm_message_t state) { struct cb710_chip *chip = pci_get_drvdata(pdev); - free_irq(pdev->irq, chip); + devm_free_irq(&pdev->dev, pdev->irq, chip); pci_save_state(pdev); pci_disable_device(pdev); if (state.event & PM_EVENT_SLEEP) diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig index 04f2e1fa9dd1..9536852fd4c6 100644 --- a/drivers/misc/eeprom/Kconfig +++ b/drivers/misc/eeprom/Kconfig @@ -96,4 +96,17 @@ config EEPROM_DIGSY_MTC_CFG If unsure, say N. +config EEPROM_SUNXI_SID + tristate "Allwinner sunxi security ID support" + depends on ARCH_SUNXI && SYSFS + help + This is a driver for the 'security ID' available on various Allwinner + devices. + + Due to the potential risks involved with changing e-fuses, + this driver is read-only. + + This driver can also be built as a module. If so, the module + will be called sunxi_sid. + endmenu diff --git a/drivers/misc/eeprom/Makefile b/drivers/misc/eeprom/Makefile index fc1e81d29267..9507aec95e94 100644 --- a/drivers/misc/eeprom/Makefile +++ b/drivers/misc/eeprom/Makefile @@ -4,4 +4,5 @@ obj-$(CONFIG_EEPROM_LEGACY) += eeprom.o obj-$(CONFIG_EEPROM_MAX6875) += max6875.o obj-$(CONFIG_EEPROM_93CX6) += eeprom_93cx6.o obj-$(CONFIG_EEPROM_93XX46) += eeprom_93xx46.o +obj-$(CONFIG_EEPROM_SUNXI_SID) += sunxi_sid.o obj-$(CONFIG_EEPROM_DIGSY_MTC_CFG) += digsy_mtc_eeprom.o diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c index 5d4fd69d04ca..d87f77f790d6 100644 --- a/drivers/misc/eeprom/at24.c +++ b/drivers/misc/eeprom/at24.c @@ -22,7 +22,7 @@ #include <linux/jiffies.h> #include <linux/of.h> #include <linux/i2c.h> -#include <linux/i2c/at24.h> +#include <linux/platform_data/at24.h> /* * I2C EEPROMs from most vendors are inexpensive and mostly interchangeable. @@ -428,6 +428,9 @@ static ssize_t at24_bin_write(struct file *filp, struct kobject *kobj, { struct at24_data *at24; + if (unlikely(off >= attr->size)) + return -EFBIG; + at24 = dev_get_drvdata(container_of(kobj, struct device, kobj)); return at24_write(at24, buf, off, count); } diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c index 840b3594a5ae..4f3bca1003a1 100644 --- a/drivers/misc/eeprom/at25.c +++ b/drivers/misc/eeprom/at25.c @@ -462,10 +462,17 @@ static int at25_remove(struct spi_device *spi) /*-------------------------------------------------------------------------*/ +static const struct of_device_id at25_of_match[] = { + { .compatible = "atmel,at25", }, + { } +}; +MODULE_DEVICE_TABLE(of, at25_of_match); + static struct spi_driver at25_driver = { .driver = { .name = "at25", .owner = THIS_MODULE, + .of_match_table = at25_of_match, }, .probe = at25_probe, .remove = at25_remove, diff --git a/drivers/misc/eeprom/eeprom_93xx46.c b/drivers/misc/eeprom/eeprom_93xx46.c index 94cfc1212577..3a015abb444a 100644 --- a/drivers/misc/eeprom/eeprom_93xx46.c +++ b/drivers/misc/eeprom/eeprom_93xx46.c @@ -202,7 +202,7 @@ eeprom_93xx46_bin_write(struct file *filp, struct kobject *kobj, edev = dev_get_drvdata(dev); if (unlikely(off >= edev->bin.size)) - return 0; + return -EFBIG; if ((off + count) > edev->bin.size) count = edev->bin.size - off; if (unlikely(!count)) diff --git a/drivers/misc/eeprom/sunxi_sid.c b/drivers/misc/eeprom/sunxi_sid.c new file mode 100644 index 000000000000..9c34e5704304 --- /dev/null +++ b/drivers/misc/eeprom/sunxi_sid.c @@ -0,0 +1,158 @@ +/* + * Copyright (c) 2013 Oliver Schinagl <oliver@schinagl.nl> + * http://www.linux-sunxi.org + * + * 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. + * + * This driver exposes the Allwinner security ID, efuses exported in byte- + * sized chunks. + */ + +#include <linux/compiler.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/export.h> +#include <linux/fs.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/kobject.h> +#include <linux/module.h> +#include <linux/of_device.h> +#include <linux/platform_device.h> +#include <linux/random.h> +#include <linux/slab.h> +#include <linux/stat.h> +#include <linux/sysfs.h> +#include <linux/types.h> + +#define DRV_NAME "sunxi-sid" + +struct sunxi_sid_data { + void __iomem *reg_base; + unsigned int keysize; +}; + +/* We read the entire key, due to a 32 bit read alignment requirement. Since we + * want to return the requested byte, this results in somewhat slower code and + * uses 4 times more reads as needed but keeps code simpler. Since the SID is + * only very rarely probed, this is not really an issue. + */ +static u8 sunxi_sid_read_byte(const struct sunxi_sid_data *sid_data, + const unsigned int offset) +{ + u32 sid_key; + + if (offset >= sid_data->keysize) + return 0; + + sid_key = ioread32be(sid_data->reg_base + round_down(offset, 4)); + sid_key >>= (offset % 4) * 8; + + return sid_key; /* Only return the last byte */ +} + +static ssize_t sid_read(struct file *fd, struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t pos, size_t size) +{ + struct platform_device *pdev; + struct sunxi_sid_data *sid_data; + int i; + + pdev = to_platform_device(kobj_to_dev(kobj)); + sid_data = platform_get_drvdata(pdev); + + if (pos < 0 || pos >= sid_data->keysize) + return 0; + if (size > sid_data->keysize - pos) + size = sid_data->keysize - pos; + + for (i = 0; i < size; i++) + buf[i] = sunxi_sid_read_byte(sid_data, pos + i); + + return i; +} + +static struct bin_attribute sid_bin_attr = { + .attr = { .name = "eeprom", .mode = S_IRUGO, }, + .read = sid_read, +}; + +static int sunxi_sid_remove(struct platform_device *pdev) +{ + device_remove_bin_file(&pdev->dev, &sid_bin_attr); + dev_dbg(&pdev->dev, "driver unloaded\n"); + + return 0; +} + +static const struct of_device_id sunxi_sid_of_match[] = { + { .compatible = "allwinner,sun4i-sid", .data = (void *)16}, + { .compatible = "allwinner,sun7i-a20-sid", .data = (void *)512}, + {/* sentinel */}, +}; +MODULE_DEVICE_TABLE(of, sunxi_sid_of_match); + +static int sunxi_sid_probe(struct platform_device *pdev) +{ + struct sunxi_sid_data *sid_data; + struct resource *res; + const struct of_device_id *of_dev_id; + u8 *entropy; + unsigned int i; + + sid_data = devm_kzalloc(&pdev->dev, sizeof(struct sunxi_sid_data), + GFP_KERNEL); + if (!sid_data) + return -ENOMEM; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + sid_data->reg_base = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(sid_data->reg_base)) + return PTR_ERR(sid_data->reg_base); + + of_dev_id = of_match_device(sunxi_sid_of_match, &pdev->dev); + if (!of_dev_id) + return -ENODEV; + sid_data->keysize = (int)of_dev_id->data; + + platform_set_drvdata(pdev, sid_data); + + sid_bin_attr.size = sid_data->keysize; + if (device_create_bin_file(&pdev->dev, &sid_bin_attr)) + return -ENODEV; + + entropy = kzalloc(sizeof(u8) * sid_data->keysize, GFP_KERNEL); + for (i = 0; i < sid_data->keysize; i++) + entropy[i] = sunxi_sid_read_byte(sid_data, i); + add_device_randomness(entropy, sid_data->keysize); + kfree(entropy); + + dev_dbg(&pdev->dev, "loaded\n"); + + return 0; +} + +static struct platform_driver sunxi_sid_driver = { + .probe = sunxi_sid_probe, + .remove = sunxi_sid_remove, + .driver = { + .name = DRV_NAME, + .owner = THIS_MODULE, + .of_match_table = sunxi_sid_of_match, + }, +}; +module_platform_driver(sunxi_sid_driver); + +MODULE_AUTHOR("Oliver Schinagl <oliver@schinagl.nl>"); +MODULE_DESCRIPTION("Allwinner sunxi security id driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/misc/ep93xx_pwm.c b/drivers/misc/ep93xx_pwm.c deleted file mode 100644 index cdb67a9c1959..000000000000 --- a/drivers/misc/ep93xx_pwm.c +++ /dev/null @@ -1,286 +0,0 @@ -/* - * Simple PWM driver for EP93XX - * - * (c) Copyright 2009 Matthieu Crapet <mcrapet@gmail.com> - * (c) Copyright 2009 H Hartley Sweeten <hsweeten@visionengravers.com> - * - * 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. - * - * EP9307 has only one channel: - * - PWMOUT - * - * EP9301/02/12/15 have two channels: - * - PWMOUT - * - PWMOUT1 (alternate function for EGPIO14) - */ - -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/slab.h> -#include <linux/clk.h> -#include <linux/err.h> -#include <linux/io.h> - -#include <mach/platform.h> - -#define EP93XX_PWMx_TERM_COUNT 0x00 -#define EP93XX_PWMx_DUTY_CYCLE 0x04 -#define EP93XX_PWMx_ENABLE 0x08 -#define EP93XX_PWMx_INVERT 0x0C - -#define EP93XX_PWM_MAX_COUNT 0xFFFF - -struct ep93xx_pwm { - void __iomem *mmio_base; - struct clk *clk; - u32 duty_percent; -}; - -/* - * /sys/devices/platform/ep93xx-pwm.N - * /min_freq read-only minimum pwm output frequency - * /max_req read-only maximum pwm output frequency - * /freq read-write pwm output frequency (0 = disable output) - * /duty_percent read-write pwm duty cycle percent (1..99) - * /invert read-write invert pwm output - */ - -static ssize_t ep93xx_pwm_get_min_freq(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct platform_device *pdev = to_platform_device(dev); - struct ep93xx_pwm *pwm = platform_get_drvdata(pdev); - unsigned long rate = clk_get_rate(pwm->clk); - - return sprintf(buf, "%ld\n", rate / (EP93XX_PWM_MAX_COUNT + 1)); -} - -static ssize_t ep93xx_pwm_get_max_freq(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct platform_device *pdev = to_platform_device(dev); - struct ep93xx_pwm *pwm = platform_get_drvdata(pdev); - unsigned long rate = clk_get_rate(pwm->clk); - - return sprintf(buf, "%ld\n", rate / 2); -} - -static ssize_t ep93xx_pwm_get_freq(struct device *dev, - struct device_attribute *attr, |