diff options
| -rw-r--r-- | Documentation/devicetree/bindings/misc/bmp085.txt | 20 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/vendor-prefixes.txt | 1 | ||||
| -rw-r--r-- | drivers/char/xilinx_hwicap/xilinx_hwicap.c | 30 | ||||
| -rw-r--r-- | drivers/char/xilinx_hwicap/xilinx_hwicap.h | 2 | ||||
| -rw-r--r-- | drivers/misc/Kconfig | 26 | ||||
| -rw-r--r-- | drivers/misc/Makefile | 2 | ||||
| -rw-r--r-- | drivers/misc/ad525x_dpot.c | 2 | ||||
| -rw-r--r-- | drivers/misc/bh1780gli.c | 2 | ||||
| -rw-r--r-- | drivers/misc/bmp085-i2c.c | 91 | ||||
| -rw-r--r-- | drivers/misc/bmp085-spi.c | 91 | ||||
| -rw-r--r-- | drivers/misc/bmp085.c | 356 | ||||
| -rw-r--r-- | drivers/misc/bmp085.h | 33 | ||||
| -rw-r--r-- | drivers/misc/eeprom/at25.c | 19 | ||||
| -rw-r--r-- | drivers/misc/max8997-muic.c | 6 | ||||
| -rw-r--r-- | drivers/misc/pch_phub.c | 4 | ||||
| -rw-r--r-- | drivers/misc/pti.c | 2 | ||||
| -rw-r--r-- | drivers/parport/parport_amiga.c | 36 | ||||
| -rw-r--r-- | drivers/parport/parport_atari.c | 9 | ||||
| -rw-r--r-- | drivers/parport/parport_mfc3.c | 35 | ||||
| -rw-r--r-- | drivers/parport/parport_pc.c | 276 | ||||
| -rw-r--r-- | drivers/parport/parport_sunbpp.c | 21 | ||||
| -rw-r--r-- | include/linux/spi/eeprom.h | 10 |
22 files changed, 503 insertions, 571 deletions
diff --git a/Documentation/devicetree/bindings/misc/bmp085.txt b/Documentation/devicetree/bindings/misc/bmp085.txt new file mode 100644 index 00000000000..91dfda2e4e1 --- /dev/null +++ b/Documentation/devicetree/bindings/misc/bmp085.txt @@ -0,0 +1,20 @@ +BMP085/BMP18x digital pressure sensors + +Required properties: +- compatible: bosch,bmp085 + +Optional properties: +- chip-id: configurable chip id for non-default chip revisions +- temp-measurement-period: temperature measurement period (milliseconds) +- default-oversampling: default oversampling value to be used at startup, + value range is 0-3 with rising sensitivity. + +Example: + +pressure@77 { + compatible = "bosch,bmp085"; + reg = <0x77>; + chip-id = <10>; + temp-measurement-period = <100>; + default-oversampling = <2>; +}; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 82ac057a24a..107d8addf0e 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -8,6 +8,7 @@ amcc Applied Micro Circuits Corporation (APM, formally AMCC) apm Applied Micro Circuits Corporation (APM) arm ARM Ltd. atmel Atmel Corporation +bosch Bosch Sensortec GmbH cavium Cavium, Inc. chrp Common Hardware Reference Platform cortina Cortina Systems, Inc. diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c index 31ba11ca75e..2c5d15beea3 100644 --- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c +++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c @@ -167,6 +167,7 @@ static const struct config_registers v4_config_registers = { .BOOTSTS = UNIMPLEMENTED, .CTL_1 = UNIMPLEMENTED, }; + static const struct config_registers v5_config_registers = { .CRC = 0, .FAR = 1, @@ -192,6 +193,31 @@ static const struct config_registers v5_config_registers = { .CTL_1 = 19, }; +static const struct config_registers v6_config_registers = { + .CRC = 0, + .FAR = 1, + .FDRI = 2, + .FDRO = 3, + .CMD = 4, + .CTL = 5, + .MASK = 6, + .STAT = 7, + .LOUT = 8, + .COR = 9, + .MFWR = 10, + .FLR = UNIMPLEMENTED, + .KEY = UNIMPLEMENTED, + .CBC = 11, + .IDCODE = 12, + .AXSS = 13, + .C0R_1 = 14, + .CSOB = 15, + .WBSTAR = 16, + .TIMER = 17, + .BOOTSTS = 22, + .CTL_1 = 24, +}; + /** * hwicap_command_desync - Send a DESYNC command to the ICAP port. * @drvdata: a pointer to the drvdata. @@ -744,6 +770,8 @@ static int __devinit hwicap_of_probe(struct platform_device *op, regs = &v4_config_registers; } else if (!strcmp(family, "virtex5")) { regs = &v5_config_registers; + } else if (!strcmp(family, "virtex6")) { + regs = &v6_config_registers; } } return hwicap_setup(&op->dev, id ? *id : -1, &res, config, @@ -785,6 +813,8 @@ static int __devinit hwicap_drv_probe(struct platform_device *pdev) regs = &v4_config_registers; } else if (!strcmp(family, "virtex5")) { regs = &v5_config_registers; + } else if (!strcmp(family, "virtex6")) { + regs = &v6_config_registers; } } diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.h b/drivers/char/xilinx_hwicap/xilinx_hwicap.h index 8cca11981c5..d31ee23c9f1 100644 --- a/drivers/char/xilinx_hwicap/xilinx_hwicap.h +++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.h @@ -86,7 +86,7 @@ struct hwicap_driver_config { }; /* Number of times to poll the done regsiter */ -#define XHI_MAX_RETRIES 10 +#define XHI_MAX_RETRIES 5000 /************ Constant Definitions *************/ diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index c7795096d43..96846955595 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -452,14 +452,32 @@ config ARM_CHARLCD still useful. config BMP085 - tristate "BMP085 digital pressure sensor" + bool + depends on SYSFS + +config BMP085_I2C + tristate "BMP085 digital pressure sensor on I2C" + select BMP085 + select REGMAP_I2C depends on I2C && SYSFS help - If you say yes here you get support for the Bosch Sensortec - BMP085 digital pressure sensor. + Say Y here if you want to support Bosch Sensortec's digital pressure + sensor hooked to an I2C bus. + + To compile this driver as a module, choose M here: the + module will be called bmp085-i2c. + +config BMP085_SPI + tristate "BMP085 digital pressure sensor on SPI" + select BMP085 + select REGMAP_SPI + depends on SPI_MASTER && SYSFS + help + Say Y here if you want to support Bosch Sensortec's digital pressure + sensor hooked to an SPI bus. To compile this driver as a module, choose M here: the - module will be called bmp085. + module will be called bmp085-spi. config PCH_PHUB tristate "Intel EG20T PCH/LAPIS Semicon IOH(ML7213/ML7223/ML7831) PHUB" diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index 3e1d80106f0..509d0569dc0 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -11,6 +11,8 @@ obj-$(CONFIG_ATMEL_PWM) += atmel_pwm.o obj-$(CONFIG_ATMEL_SSC) += atmel-ssc.o obj-$(CONFIG_ATMEL_TCLIB) += atmel_tclib.o obj-$(CONFIG_BMP085) += bmp085.o +obj-$(CONFIG_BMP085_I2C) += bmp085-i2c.o +obj-$(CONFIG_BMP085_SPI) += bmp085-spi.o obj-$(CONFIG_ICS932S401) += ics932s401.o obj-$(CONFIG_LKDTM) += lkdtm.o obj-$(CONFIG_TIFM_CORE) += tifm_core.o diff --git a/drivers/misc/ad525x_dpot.c b/drivers/misc/ad525x_dpot.c index 1d1d4261591..6938f1be664 100644 --- a/drivers/misc/ad525x_dpot.c +++ b/drivers/misc/ad525x_dpot.c @@ -749,7 +749,7 @@ exit: } EXPORT_SYMBOL(ad_dpot_probe); -__devexit int ad_dpot_remove(struct device *dev) +int ad_dpot_remove(struct device *dev) { struct dpot_data *data = dev_get_drvdata(dev); int i; diff --git a/drivers/misc/bh1780gli.c b/drivers/misc/bh1780gli.c index 54f6f39f990..f1f9877f3fd 100644 --- a/drivers/misc/bh1780gli.c +++ b/drivers/misc/bh1780gli.c @@ -248,7 +248,7 @@ static const struct i2c_device_id bh1780_id[] = { static struct i2c_driver bh1780_driver = { .probe = bh1780_probe, - .remove = bh1780_remove, + .remove = __devexit_p(bh1780_remove), .id_table = bh1780_id, .driver = { .name = "bh1780", diff --git a/drivers/misc/bmp085-i2c.c b/drivers/misc/bmp085-i2c.c new file mode 100644 index 00000000000..9943971c13e --- /dev/null +++ b/drivers/misc/bmp085-i2c.c @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2012 Bosch Sensortec GmbH + * Copyright (c) 2012 Unixphere AB + * + * 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, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/module.h> +#include <linux/i2c.h> +#include <linux/err.h> +#include "bmp085.h" + +#define BMP085_I2C_ADDRESS 0x77 + +static const unsigned short normal_i2c[] = { BMP085_I2C_ADDRESS, + I2C_CLIENT_END }; + +static int bmp085_i2c_detect(struct i2c_client *client, + struct i2c_board_info *info) +{ + if (client->addr != BMP085_I2C_ADDRESS) + return -ENODEV; + + return bmp085_detect(&client->dev); +} + +static int __devinit bmp085_i2c_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + int err; + struct regmap *regmap = devm_regmap_init_i2c(client, + &bmp085_regmap_config); + + if (IS_ERR(regmap)) { + err = PTR_ERR(regmap); + dev_err(&client->dev, "Failed to init regmap: %d\n", err); + return err; + } + + return bmp085_probe(&client->dev, regmap); +} + +static int bmp085_i2c_remove(struct i2c_client *client) +{ + return bmp085_remove(&client->dev); +} + +static const struct of_device_id bmp085_of_match[] = { + { .compatible = "bosch,bmp085", }, + { }, +}; +MODULE_DEVICE_TABLE(of, bmp085_of_match); + +static const struct i2c_device_id bmp085_id[] = { + { BMP085_NAME, 0 }, + { "bmp180", 0 }, + { } +}; +MODULE_DEVICE_TABLE(i2c, bmp085_id); + +static struct i2c_driver bmp085_i2c_driver = { + .driver = { + .owner = THIS_MODULE, + .name = BMP085_NAME, + .of_match_table = bmp085_of_match + }, + .id_table = bmp085_id, + .probe = bmp085_i2c_probe, + .remove = __devexit_p(bmp085_i2c_remove), + + .detect = bmp085_i2c_detect, + .address_list = normal_i2c +}; + +module_i2c_driver(bmp085_i2c_driver); + +MODULE_AUTHOR("Eric Andersson <eric.andersson@unixphere.com>"); +MODULE_DESCRIPTION("BMP085 I2C bus driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/misc/bmp085-spi.c b/drivers/misc/bmp085-spi.c new file mode 100644 index 00000000000..78aaff9b523 --- /dev/null +++ b/drivers/misc/bmp085-spi.c @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2012 Bosch Sensortec GmbH + * Copyright (c) 2012 Unixphere AB + * + * 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, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <linux/module.h> +#include <linux/spi/spi.h> +#include <linux/err.h> +#include "bmp085.h" + +static int __devinit bmp085_spi_probe(struct spi_device *client) +{ + int err; + struct regmap *regmap; + + client->bits_per_word = 8; + err = spi_setup(client); + if (err < 0) { + dev_err(&client->dev, "spi_setup failed!\n"); + return err; + } + + regmap = devm_regmap_init_spi(client, &bmp085_regmap_config); + if (IS_ERR(regmap)) { + err = PTR_ERR(regmap); + dev_err(&client->dev, "Failed to init regmap: %d\n", err); + return err; + } + + return bmp085_probe(&client->dev, regmap); +} + +static int bmp085_spi_remove(struct spi_device *client) +{ + return bmp085_remove(&client->dev); +} + +static const struct of_device_id bmp085_of_match[] = { + { .compatible = "bosch,bmp085", }, + { }, +}; +MODULE_DEVICE_TABLE(of, bmp085_of_match); + +static const struct spi_device_id bmp085_id[] = { + { "bmp180", 0 }, + { "bmp181", 0 }, + { } +}; +MODULE_DEVICE_TABLE(spi, bmp085_id); + +static struct spi_driver bmp085_spi_driver = { + .driver = { + .owner = THIS_MODULE, + .name = BMP085_NAME, + .of_match_table = bmp085_of_match + }, + .id_table = bmp085_id, + .probe = bmp085_spi_probe, + .remove = __devexit_p(bmp085_spi_remove) +}; + +static int __init bmp085_spi_init(void) +{ + return spi_register_driver(&bmp085_spi_driver); +} + +static void __exit bmp085_spi_exit(void) +{ + spi_unregister_driver(&bmp085_spi_driver); +} + +MODULE_AUTHOR("Eric Andersson <eric.andersson@unixphere.com>"); +MODULE_DESCRIPTION("BMP085 SPI bus driver"); +MODULE_LICENSE("GPL"); + +module_init(bmp085_spi_init); +module_exit(bmp085_spi_exit); diff --git a/drivers/misc/bmp085.c b/drivers/misc/bmp085.c index 76c3064629f..62e418293b7 100644 --- a/drivers/misc/bmp085.c +++ b/drivers/misc/bmp085.c @@ -1,62 +1,62 @@ /* Copyright (c) 2010 Christoph Mair <christoph.mair@gmail.com> - - This driver supports the bmp085 digital barometric pressure - and temperature sensor from Bosch Sensortec. The datasheet - is available from their website: - http://www.bosch-sensortec.com/content/language1/downloads/BST-BMP085-DS000-05.pdf - - A pressure measurement is issued by reading from pressure0_input. - The return value ranges from 30000 to 110000 pascal with a resulution - of 1 pascal (0.01 millibar) which enables measurements from 9000m above - to 500m below sea level. - - The temperature can be read from temp0_input. Values range from - -400 to 850 representing the ambient temperature in degree celsius - multiplied by 10.The resolution is 0.1 celsius. - - Because ambient pressure is temperature dependent, a temperature - measurement will be executed automatically even if the user is reading - from pressure0_input. This happens if the last temperature measurement - has been executed more then one second ago. - - To decrease RMS noise from pressure measurements, the bmp085 can - autonomously calculate the average of up to eight samples. This is - set up by writing to the oversampling sysfs file. Accepted values - are 0, 1, 2 and 3. 2^x when x is the value written to this file - specifies the number of samples used to calculate the ambient pressure. - RMS noise is specified with six pascal (without averaging) and decreases - down to 3 pascal when using an oversampling setting of 3. - - 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, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - + * Copyright (c) 2012 Bosch Sensortec GmbH + * Copyright (c) 2012 Unixphere AB + * + * This driver supports the bmp085 and bmp18x digital barometric pressure + * and temperature sensors from Bosch Sensortec. The datasheets + * are available from their website: + * http://www.bosch-sensortec.com/content/language1/downloads/BST-BMP085-DS000-05.pdf + * http://www.bosch-sensortec.com/content/language1/downloads/BST-BMP180-DS000-07.pdf + * + * A pressure measurement is issued by reading from pressure0_input. + * The return value ranges from 30000 to 110000 pascal with a resulution + * of 1 pascal (0.01 millibar) which enables measurements from 9000m above + * to 500m below sea level. + * + * The temperature can be read from temp0_input. Values range from + * -400 to 850 representing the ambient temperature in degree celsius + * multiplied by 10.The resolution is 0.1 celsius. + * + * Because ambient pressure is temperature dependent, a temperature + * measurement will be executed automatically even if the user is reading + * from pressure0_input. This happens if the last temperature measurement + * has been executed more then one second ago. + * + * To decrease RMS noise from pressure measurements, the bmp085 can + * autonomously calculate the average of up to eight samples. This is + * set up by writing to the oversampling sysfs file. Accepted values + * are 0, 1, 2 and 3. 2^x when x is the value written to this file + * specifies the number of samples used to calculate the ambient pressure. + * RMS noise is specified with six pascal (without averaging) and decreases + * down to 3 pascal when using an oversampling setting of 3. + * + * 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, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ #include <linux/module.h> +#include <linux/device.h> #include <linux/init.h> -#include <linux/i2c.h> #include <linux/slab.h> #include <linux/delay.h> +#include <linux/of.h> +#include "bmp085.h" - -#define BMP085_I2C_ADDRESS 0x77 #define BMP085_CHIP_ID 0x55 - #define BMP085_CALIBRATION_DATA_START 0xAA #define BMP085_CALIBRATION_DATA_LENGTH 11 /* 16 bit values */ #define BMP085_CHIP_ID_REG 0xD0 -#define BMP085_VERSION_REG 0xD1 #define BMP085_CTRL_REG 0xF4 #define BMP085_TEMP_MEASUREMENT 0x2E #define BMP085_PRESSURE_MEASUREMENT 0x34 @@ -65,12 +65,6 @@ #define BMP085_CONVERSION_REGISTER_XLSB 0xF8 #define BMP085_TEMP_CONVERSION_TIME 5 -#define BMP085_CLIENT_NAME "bmp085" - - -static const unsigned short normal_i2c[] = { BMP085_I2C_ADDRESS, - I2C_CLIENT_END }; - struct bmp085_calibration_data { s16 AC1, AC2, AC3; u16 AC4, AC5, AC6; @@ -78,35 +72,30 @@ struct bmp085_calibration_data { s16 MB, MC, MD; }; - -/* Each client has this additional data */ struct bmp085_data { - struct i2c_client *client; - struct mutex lock; - struct bmp085_calibration_data calibration; - u32 raw_temperature; - u32 raw_pressure; - unsigned char oversampling_setting; + struct device *dev; + struct regmap *regmap; + struct mutex lock; + struct bmp085_calibration_data calibration; + u8 oversampling_setting; + u32 raw_temperature; + u32 raw_pressure; + u32 temp_measurement_period; unsigned long last_temp_measurement; - s32 b6; /* calculated temperature correction coefficient */ + u8 chip_id; + s32 b6; /* calculated temperature correction coefficient */ }; - -static s32 bmp085_read_calibration_data(struct i2c_client *client) +static s32 bmp085_read_calibration_data(struct bmp085_data *data) { u16 tmp[BMP085_CALIBRATION_DATA_LENGTH]; - struct bmp085_data *data = i2c_get_clientdata(client); struct bmp085_calibration_data *cali = &(data->calibration); - s32 status = i2c_smbus_read_i2c_block_data(client, - BMP085_CALIBRATION_DATA_START, - BMP085_CALIBRATION_DATA_LENGTH*sizeof(u16), - (u8 *)tmp); + s32 status = regmap_bulk_read(data->regmap, + BMP085_CALIBRATION_DATA_START, (u8 *)tmp, + (BMP085_CALIBRATION_DATA_LENGTH << 1)); if (status < 0) return status; - if (status != BMP085_CALIBRATION_DATA_LENGTH*sizeof(u16)) - return -EIO; - cali->AC1 = be16_to_cpu(tmp[0]); cali->AC2 = be16_to_cpu(tmp[1]); cali->AC3 = be16_to_cpu(tmp[2]); @@ -121,30 +110,26 @@ static s32 bmp085_read_calibration_data(struct i2c_client *client) return 0; } - static s32 bmp085_update_raw_temperature(struct bmp085_data *data) { u16 tmp; s32 status; mutex_lock(&data->lock); - status = i2c_smbus_write_byte_data(data->client, BMP085_CTRL_REG, - BMP085_TEMP_MEASUREMENT); - if (status != 0) { - dev_err(&data->client->dev, + status = regmap_write(data->regmap, BMP085_CTRL_REG, + BMP085_TEMP_MEASUREMENT); + if (status < 0) { + dev_err(data->dev, "Error while requesting temperature measurement.\n"); goto exit; } msleep(BMP085_TEMP_CONVERSION_TIME); - status = i2c_smbus_read_i2c_block_data(data->client, - BMP085_CONVERSION_REGISTER_MSB, sizeof(tmp), (u8 *)&tmp); - if (status < 0) - goto exit; - if (status != sizeof(tmp)) { - dev_err(&data->client->dev, + status = regmap_bulk_read(data->regmap, BMP085_CONVERSION_REGISTER_MSB, + &tmp, sizeof(tmp)); + if (status < 0) { + dev_err(data->dev, "Error while reading temperature measurement result\n"); - status = -EIO; goto exit; } data->raw_temperature = be16_to_cpu(tmp); @@ -162,10 +147,11 @@ static s32 bmp085_update_raw_pressure(struct bmp085_data *data) s32 status; mutex_lock(&data->lock); - status = i2c_smbus_write_byte_data(data->client, BMP085_CTRL_REG, - BMP085_PRESSURE_MEASUREMENT + (data->oversampling_setting<<6)); - if (status != 0) { - dev_err(&data->client->dev, + status = regmap_write(data->regmap, BMP085_CTRL_REG, + BMP085_PRESSURE_MEASUREMENT + + (data->oversampling_setting << 6)); + if (status < 0) { + dev_err(data->dev, "Error while requesting pressure measurement.\n"); goto exit; } @@ -174,14 +160,11 @@ static s32 bmp085_update_raw_pressure(struct bmp085_data *data) msleep(2+(3 << data->oversampling_setting)); /* copy data into a u32 (4 bytes), but skip the first byte. */ - status = i2c_smbus_read_i2c_block_data(data->client, - BMP085_CONVERSION_REGISTER_MSB, 3, ((u8 *)&tmp)+1); - if (status < 0) - goto exit; - if (status != 3) { - dev_err(&data->client->dev, + status = regmap_bulk_read(data->regmap, BMP085_CONVERSION_REGISTER_MSB, + ((u8 *)&tmp)+1, 3); + if (status < 0) { + dev_err(data->dev, "Error while reading pressure measurement results\n"); - status = -EIO; goto exit; } data->raw_pressure = be32_to_cpu((tmp)); @@ -193,7 +176,6 @@ exit: return status; } - /* * This function starts the temperature measurement and returns the value * in tenth of a degree celsius. @@ -205,7 +187,7 @@ static s32 bmp085_get_temperature(struct bmp085_data *data, int *temperature) int status; status = bmp085_update_raw_temperature(data); - if (status != 0) + if (status < 0) goto exit; x1 = ((data->raw_temperature - cali->AC6) * cali->AC5) >> 15; @@ -222,8 +204,10 @@ exit: /* * This function starts the pressure measurement and returns the value * in millibar. Since the pressure depends on the ambient temperature, - * a temperature measurement is executed if the last known value is older - * than one second. + * a temperature measurement is executed according to the given temperature + * measurement period (default is 1 sec boundary). This period could vary + * and needs to be adjusted according to the sensor environment, i.e. if big + * temperature variations then the temperature needs to be read out often. */ static s32 bmp085_get_pressure(struct bmp085_data *data, int *pressure) { @@ -234,16 +218,16 @@ static s32 bmp085_get_pressure(struct bmp085_data *data, int *pressure) int status; /* alt least every second force an update of the ambient temperature */ - if (data->last_temp_measurement == 0 || - time_is_before_jiffies(data->last_temp_measurement + 1*HZ)) { + if ((data->last_temp_measurement == 0) || + time_is_before_jiffies(data->last_temp_measurement + 1*HZ)) { status = bmp085_get_temperature(data, NULL); - if (status != 0) - goto exit; + if (status < 0) + return status; } status = bmp085_update_raw_pressure(data); - if (status != 0) - goto exit; + if (status < 0) + return status; x1 = (data->b6 * data->b6) >> 12; x1 *= cali->B2; @@ -274,15 +258,14 @@ static s32 bmp085_get_pressure(struct bmp085_data *data, int *pressure) *pressure = p; -exit: - return status; + return 0; } /* * This function sets the chip-internal oversampling. Valid values are 0..3. * The chip will use 2^oversampling samples for internal averaging. * This influences the measurement time and the accuracy; larger values - * increase both. The datasheet gives on overview on how measurement time, + * increase both. The datasheet gives an overview on how measurement time, * accuracy and noise correlate. */ static void bmp085_set_oversampling(struct bmp085_data *data, @@ -306,22 +289,25 @@ static ssize_t set_oversampling(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct bmp085_data *data = i2c_get_clientdata(client); + struct bmp085_data *data = dev_get_drvdata(dev); unsigned long oversampling; - int success = strict_strtoul(buf, 10, &oversampling); - if (success == 0) { + int err = kstrtoul(buf, 10, &oversampling); + + if (err == 0) { + mutex_lock(&data->lock); bmp085_set_oversampling(data, oversampling); + mutex_unlock(&data->lock); return count; } - return success; + + return err; } static ssize_t show_oversampling(struct device *dev, struct device_attribute *attr, char *buf) { - struct i2c_client *client = to_i2c_client(dev); - struct bmp085_data *data = i2c_get_clientdata(client); + struct bmp085_data *data = dev_get_drvdata(dev); + return sprintf(buf, "%u\n", bmp085_get_oversampling(data)); } static DEVICE_ATTR(oversampling, S_IWUSR | S_IRUGO, @@ -333,11 +319,10 @@ static ssize_t show_temperature(struct device *dev, { int temperature; int status; - struct i2c_client *client = to_i2c_client(dev); - struct bmp085_data *data = i2c_get_clientdata(client); + struct bmp085_data *data = dev_get_drvdata(dev); status = bmp085_get_temperature(data, &temperature); - if (status != 0) + if (status < 0) return status; else return sprintf(buf, "%d\n", temperature); @@ -350,11 +335,10 @@ static ssize_t show_pressure(struct device *dev, { int pressure; int status; - struct i2c_client *client = to_i2c_client(dev); - struct bmp085_data *data = i2c_get_clientdata(client); + struct bmp085_data *data = dev_get_drvdata(dev); status = bmp085_get_pressure(data, &pressure); - if (status != 0) + if (status < 0) return status; else return sprintf(buf, "%d\n", pressure); @@ -373,38 +357,70 @@ static const struct attribute_group bmp085_attr_group = { .attrs = bmp085_attributes, }; -static int bmp085_detect(struct i2c_client *client, struct i2c_board_info *info) +int bmp085_detect(struct device *dev) { - if (client->addr != BMP085_I2C_ADDRESS) - return -ENODEV; + struct bmp085_data *data = dev_get_drvdata(dev); + unsigned int id; + int ret; - if (i2c_smbus_read_byte_data(client, BMP085_CHIP_ID_REG) != BMP085_CHIP_ID) + ret = regmap_read(data->regmap, BMP085_CHIP_ID_REG, &id); + if (ret < 0) + return ret; + + if (id != data->chip_id) return -ENODEV; return 0; } +EXPORT_SYMBOL_GPL(bmp085_detect); -static int bmp085_init_client(struct i2c_client *client) +static void __init bmp085_get_of_properties(struct bmp085_data *data) { - unsigned char version; - int status; - struct bmp085_data *data = i2c_get_clientdata(client); - data->client = client; - status = bmp085_read_calibration_data(client); - if (status != 0) - goto exit; - version = i2c_smbus_read_byte_data(client, BMP085_VERSION_REG); +#ifdef CONFIG_OF + struct device_node *np = data->dev->of_node; + u32 prop; + + if (!np) + return; + + if (!of_property_read_u32(np, "chip-id", &prop)) + data->chip_id = prop & 0xff; + + if (!of_property_read_u32(np, "temp-measurement-period", &prop)) + data->temp_measurement_period = (prop/100)*HZ; + + if (!of_property_read_u32(np, "default-oversampling", &prop)) + data->oversampling_setting = prop & 0xff; +#endif +} + +static int bmp085_init_client(struct bmp085_data *data) +{ + int status = bmp085_read_calibration_data(data); + + if (status < 0) + return status; + + /* default settings */ + data->chip_id = BMP085_CHIP_ID; data->last_temp_measurement = 0; + data->temp_measurement_period = 1*HZ; data->oversampling_setting = 3; + + bmp085_get_of_properties(data); + mutex_init(&data->lock); - dev_info(&data->client->dev, "BMP085 ver. %d.%d found.\n", - (version & 0x0F), (version & 0xF0) >> 4); -exit: - return status; + + return 0; } -static int __devinit bmp085_probe(struct i2c_client *client, - const struct i2c_device_id *id) +struct regmap_config bmp085_regmap_config = { + .reg_bits = 8, + .val_bits = 8 +}; +EXPORT_SYMBOL_GPL(bmp085_regmap_config); + +__devinit int bmp085_probe(struct device *dev, struct regmap *regmap) { struct bmp085_data *data; int err = 0; @@ -415,58 +431,48 @@ static int __devinit bmp085_probe(struct i2c_client *client, goto exit; } - /* default settings after POR */ - data->oversampling_setting = 0x00; - - i2c_set_clientdata(client, data); + dev_set_drvdata(dev, data); + data->dev = dev; + data->regmap = regmap; /* Initialize the BMP085 chip */ - err = bmp085_init_client(client); - if (err != 0) + err = bmp085_init_client(data); + if (err < 0) goto exit_free; + err = bmp085_detect(dev); + if (err < 0) { + dev_err(dev, "%s: chip_id failed!\n", BMP085_NAME); + goto exit_free; + } + /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &bmp085_attr_group); + err = sysfs_create_group(&dev->kobj, &bmp085_attr_group); if (err) goto exit_free; - dev_info(&data->client->dev, "Successfully initialized bmp085!\n"); - goto exit; + dev_info(dev, "Successfully initialized %s!\n", BMP085_NAME); + + return 0; exit_free: kfree(data); exit: return err; } +EXPORT_SYMBOL_GPL(bmp085_probe); -static int __devexit bmp085_remove(struct i2c_client *client) +int bmp085_remove(struct device *dev) { - sysfs_remove_group(&client->dev.kobj, &bmp085_attr_group); - kfree(i2c_get_clientdata(client)); - return 0; -} + struct bmp085_data *data = dev_get_drvdata(dev); -static const struct i2c_device_id bmp085_id[] = { - { "bmp085", 0 }, - { } -}; -MODULE_DEVICE_TABLE(i2c, bmp085_id); - -static struct i2c_driver bmp085_driver = { - .driver = { - .owner = THIS_MODULE, - .name = "bmp085" - }, - .id_table = bmp085_id, - .probe = bmp085_probe, - .remove = __devexit_p(bmp085_remove), - - .detect = bmp085_detect, - .address_list = normal_i2c -}; + sysfs_remove_group(&data->dev->kobj, &bmp085_attr_group); + kfree(data); -module_i2c_driver(bmp085_driver); + return 0; +} +EXPORT_SYMBOL_GPL(bmp085_remove); -MODULE_AUTHOR("Christoph Mair <christoph.mair@gmail.com"); +MODULE_AUTHOR("Christoph Mair <christoph.mair@gmail.com>"); MODULE_DESCRIPTION("BMP085 driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/misc/bmp085.h b/drivers/misc/bmp085.h new file mode 100644 index 00000000000..2b8f615bca9 --- /dev/null +++ b/drivers/misc/bmp085.h @@ -0,0 +1,33 @@ +/* + * Copyright (c) 2012 Bosch Sensortec GmbH + * Copyright (c) 2012 Unixphere AB + * + * 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, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef _BMP085_H +#define _BMP085_H + +#include <linux/regmap.h> + +#define BMP085_NAME "bmp085" + +extern struct regmap_config bmp085_regmap_config; + +int bmp085_probe(struct device *dev, struct regmap *regmap); +int bmp085_remove(struct device *dev); +int bmp085_detect(struct device *dev); + +#endif diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c index 01ab3c9b4cf..0842c2994ee 100644 --- a/drivers/misc/eeprom/at25.c +++ b/drivers/misc/eeprom/at25.c @@ -50,6 +50,7 @@ struct at25_data { #define AT25_SR_BP1 0x08 #define AT25_SR_WPEN 0x80 /* writeprotect enable */ +#define AT25_INSTR_BIT3 0x08 /* Additional address bit in instr */ #define EE_MAXADDRLEN 3 /* 24 bit addresses, up to 2 MBytes */ @@ -75,6 +76,7 @@ at25_ee_read( ssize_t status; struct spi_transfer t[2]; struct spi_message m; + u8 instr; if (unlikely(offset >= at25->bin.size)) return 0; @@ -84,7 +86,12 @@ at25_ee_read( return count; cp = command; - *cp++ = AT25_READ; + + instr = AT25_READ; + if (at25->chip.flags & EE_INSTR_BIT3_IS_ADDR) + if (offset >= (1U << (at25->addrlen * 8))) + instr |= AT25_INSTR_BIT3; + *cp++ = instr; /* 8/16/24-bit address is written MSB first */ switch (at25->addrlen) { @@ -167,14 +174,14 @@ at25_ee_write(struct at25_data *at25, const char *buf, loff_t off, /* For write, rollover is within the page ... so we write at * most one page, then manually roll over to the next page. */ - bounce[0] = AT25_WRITE; mutex_lock(&at25->lock); do { unsigned long timeout, retries; unsigned segment; unsigned offset = (unsigned) off; - u8 *cp = bounce + 1; + u8 *cp = bounce; int sr; + u8 instr; *cp = AT25_WREN; status = spi_write(at25->spi, cp, 1); @@ -184,6 +191,12 @@ at25_ee_write(struct at25_data *at25, const char *buf, loff_t off, break; } + instr = AT25_WRITE; + if (at25->chip.flags & EE_INSTR_BIT3_IS_ADDR) + if (offset >= (1U << (at25->addrlen * 8))) + instr |= AT25_INSTR_BIT3; + *cp++ = instr; + /* 8/16/24-bit address is written MSB first */ switch (at25->addrlen) { default: /* case 3 */ diff --git a/drivers/misc/max8997-muic.c b/drivers/misc/max8997-muic.c index 19591eaa492..2e7df9c5649 100644 --- a/drivers/misc/max8997-muic.c +++ b/drivers/misc/max8997-muic.c @@ -440,10 +440,6 @@ static int __devinit max8997_muic_probe(struct platform_device *pdev) "failed: irq request (IRQ: %d," " error :%d)\n", muic_irq->irq, ret); - - for (i = i - 1; i >= 0; i--) - free_irq(muic_irq->irq, info); - goto err_irq; } } @@ -457,6 +453,8 @@ static int __devinit max8997_muic_probe(struct platform_device *pdev) return ret; err_irq: + while (--i >= 0) + free_irq(pdata->irq_base + muic_irqs[i].irq, info); err_pdata: kfree(info); err_kfree: diff --git a/drivers/misc/pch_phub.c b/drivers/misc/pch_phub.c index 10fc4785dba..9fbcacd703d 100644 --- a/drivers/misc/pch_phub.c +++ b/drivers/misc/pch_phub.c @@ -65,10 +65,6 @@ #define PCI_VENDOR_ID_ROHM 0x10db #define PCI_DEVICE_ID_ROHM_ML7213_PHUB 0x801A -/* Macros for ML7213 */ -#define PCI_VENDOR_ID_ROHM 0x10db -#define PCI_DEVICE_ID_ROHM_ML7213_PHUB 0x801A - /* Macros for ML7223 */ #define PCI_DEVICE_ID_ROHM_ML7223_mPHUB 0x8012 /* for Bus-m */ #define PCI_DEVICE_ID_ROHM_ML7223_nPHUB 0x8002 /* for Bus-n */ diff --git a/drivers/misc/pti.c b/drivers/misc/pti.c index 383133b201a..b7eb545394b 100644 --- a/drivers/misc/pti.c +++ b/drivers/misc/pti.c @@ -888,7 +888,7 @@ static struct pci_driver pti_pci_driver = { .name = PCINAME, .id_table = pci_ids, .probe = pti_pci_probe, - .remove = pti_pci_remove, + .remove = __devexit_p(pti_pci_remove), }; /** diff --git a/drivers/parport/parport_amiga.c b/drivers/parport/parport_amiga.c index 8bef6d60f88..ee78e0ee6e0 100644 --- a/drivers/parport/parport_amiga.c +++ b/drivers/parport/parport_amiga.c @@ -48,23 +48,6 @@ static unsigned char amiga_read_data(struct parport *p) return ciaa.prb; } -#if 0 -static unsigned char control_pc_to_amiga(unsigned char control) -{ - unsigned char ret = 0; - - if (control & PARPORT_CONTROL_SELECT) /* XXX: What is SELECP? */ - ; - if (control & PARPORT_CONTROL_INIT) /* INITP */ - /* reset connected to cpu reset pin */; - if (control & PARPORT_CONTROL_AUTOFD) /* AUTOLF */ - /* Not connected */; - if (control & PARPORT_CONTROL_STROBE) /* Strobe */ - /* Handled only directly by hardware */; - return ret; -} -#endif - static unsigned char control_amiga_to_pc(unsigned char control) { return PARPORT_CONTROL_SELECT | @@ -95,25 +78,6 @@ static unsigned char amiga_frob_control( struct parport *p, unsigned char mask, return old; } -#if 0 /* currently unused */ -static unsigned char status_pc_to_amiga(unsigned char status) -{ - unsigned char ret = 1; - - if (status & PARPORT_STATUS_BUSY) /* Busy */ - ret &= ~1; - if (status & PARPORT_STATUS_ACK) /* Ack */ - /* handled in hardware */; - if (status & PARPORT_STATUS_PAPEROUT) /* PaperOut */ - ret |= 2; - if (status & PARPORT_STATUS_SELECT) /* select */ - ret |= 4; - if (status & PARPORT_STATUS_ERROR) /* error */ - /* not connected */; - return ret; -} -#endif - static unsigned char status_amiga_to_pc(unsigned char status) { unsigned char ret = PARPORT_STATUS_BUSY | PARPORT_STATUS_ACK | PARPORT_STATUS_ERROR; diff --git a/drivers/parport/parport_atari.c b/drivers/parport/parport_atari.c index 0b28fccec03..7ad59ac68cf 100644 --- a/drivers/parport/parport_atari.c +++ b/drivers/parport/parport_atari.c @@ -130,15 +130,6 @@ parport_atari_data_forward(struct parport *p) static void parport_atari_data_reverse(struct parport *p) { -#if 0 /* too dangerous, can kill sound chip */ - unsigned long flags; - - local_irq_save(flags); - /* Soundchip port B as input. */ - sound_ym.rd_data_reg_sel = 7; - sound_ym.wd_data = sound_ym.rd_data_reg_sel & ~0x40; - local_irq_restore(flags); -#endif } static struct parport_operations parport_atari_ops = { diff --git a/drivers/parport/parport_mfc3.c b/drivers/parport/parport_mfc3.c index 1c0c642b3e2..7578d79b368 100644 --- a/drivers/parport/parport_mfc3.c +++ b/drivers/parport/parport_mfc3.c @@ -147,25 +147,6 @@ DPRINTK(KERN_DEBUG "frob_control mask %02x, value %02x\n",mask,val); return old; } -#if 0 /* currently unused */ -static unsigned char status_pc_to_mfc3(unsigned char status) -{ - unsigned char ret = 1; - - if (status & PARPORT_STATUS_BUSY) /* Busy */ - ret &= ~1; - if (status & PARPORT_STATUS_ACK) /* Ack */ - ret |= 8; - if (status & PARPORT_STATUS_PAPEROUT) /* PaperOut */ - ret |= 2; - if (status & PARPORT_STATUS_SELECT) /* select */ - ret |= 4; - if (status & PARPORT_STATUS_ERROR) /* error */ - ret |= 16; - return ret; -} -#endif - static unsigned char status_mfc3_to_pc(unsigned char status) { unsigned char ret = PARPORT_STATUS_BUSY; @@ -184,14 +165,6 @@ static unsigned char status_mfc3_to_pc(unsigned char status) return ret; } -#if 0 /* currently unused */ -static void mfc3_write_status( struct parport *p, unsigned char status) -{ -DPRINTK(KERN_DEBUG "write_status %02x\n",status); - pia(p)->ppra = (pia(p)->ppra & 0xe0) | status_pc_to_mfc3(status); -} -#endif - static unsigned char mfc3_read_status(struct parport *p) { unsigned char status; @@ -201,14 +174,6 @@ DPRINTK(KERN_DEBUG "read_status %02x\n", status); return status; } -#if 0 /* currently unused */ -static void mfc3_change_mode( struct parport *p, int m) -{ - /* XXX: This port only has one mode, and I am - not sure about the corresponding PC-style mode*/ -} -#endif - static int use_cnt = 0; static irqreturn_t mfc3_interrupt(int irq, void *dev_id) diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c index 0cb64f50cec..402956321d3 100644 --- a/drivers/parport/parport_pc.c +++ b/drivers/parport/parport_pc.c @@ -197,54 +197,6 @@ static int change_mode(struct parport *p, int m) ECR_WRITE(p, oecr); return 0; } - -#ifdef CONFIG_PARPORT_1284 -/* Find FIFO lossage; FIFO is reset */ -#if 0 -static int get_fifo_residue(struct parport *p) -{ - int residue; - int cnfga; - const struct parport_pc_private *priv = p->physport->private_data; - - /* Adjust for the contents of the FIFO. */ - for (residue = priv->fifo_depth; ; residue--) { - if (inb(ECONTROL(p)) & 0x2) - /* Full up. */ - break; - - outb(0, FIFO(p)); - } - - printk(KERN_DEBUG "%s: %d PWords were left in FIFO\n", p->name, - residue); - - /* Reset the FIFO. */ - frob_set_mode(p, ECR_PS2); - - /* Now change to config mode and clean up. FIXME */ - frob_set_mode(p, ECR_CNF); - cnfga = inb(CONFIGA(p)); - printk(KERN_DEBUG "%s: cnfgA contains 0x%02x\n", p->name, cnfga); - - if (!(cnfga & (1<<2))) { - printk(KERN_DEBUG "%s: Accounting for extra byte\n", p->name); - residue++; - } - - /* Don't care about partial PWords until support is added for - * PWord != 1 byte. */ - - /* Back to PS2 mode. */ - frob_set_mode(p, ECR_PS2); - - DPRINTK(KERN_DEBUG - "*** get_fifo_residue: done residue collecting (ecr = 0x%2.2x)\n", - inb(ECONTROL(p))); - return residue; -} -#endif /* 0 */ -#endif /* IEEE 1284 support */ #endif /* FIFO support */ /* @@ -940,234 +892,6 @@ static size_t parport_pc_ecp_write_block_pio(struct parport *port, return written; } - -#if 0 -static size_t parport_pc_ecp_read_block_pio(struct parport *port, - void *buf, size_t length, - int flags) -{ - size_t left = length; - size_t fifofull; - int r; - const int fifo = FIFO(port); - const struct parport_pc_private *priv = port->physport->private_data; - const int fifo_depth = priv->fifo_depth; - char *bufp = buf; - - port = port->physport; - DPRINTK(KERN_DEBUG "parport_pc: parport_pc_ecp_read_block_pio\n"); - dump_parport_state("enter fcn", port); - - /* Special case: a timeout of zero means we cannot call schedule(). - * Also if O_NONBLOCK is set then use the default implementation. */ - if (port->cad->timeout <= PARPORT_INACTIVITY_O_NONBLOCK) - return parport_ieee1284_ecp_read_data(port, buf, - length, flags); - - if (port->ieee1284.mode == IEEE1284_MODE_ECPRLE) { - /* If the peripheral is allowed to send RLE compressed - * data, it is possible for a byte to expand to 128 - * bytes in the FIFO. */ - fifofull = 128; - } else { - fifofull = fifo_depth; - } - - /* If the caller wants less than a full FIFO's worth of data, - * go through software emulation. Otherwise we may have to throw - * away data. */ - if (length < fifofull) - return parport_ieee1284_ecp_read_data(port, buf, - length, flags); - - if (port->ieee1284.phase != IEEE1284_PH_REV_IDLE) { - /* change to reverse-idle phase (must be in forward-idle) */ - - /* Event 38: Set nAutoFd low (also make sure nStrobe is high) */ - parport_frob_control(port, - PARPORT_CONTROL_AUTOFD - | PARPORT_CONTROL_STROBE, - PARPORT_CONTROL_AUTOFD); - parport_pc_data_reverse(port); /* Must be in PS2 mode */ - udelay(5); - /* Event 39: Set nInit low to initiate bus reversal */ - parport_frob_control(port, - PARPORT_CONTROL_INIT, - 0); - /* Event 40: Wait for nAckReverse (PError) to go low */ - r = parport_wait_peripheral(port, PARPORT_STATUS_PAPEROUT, 0); - if (r) { - printk(KERN_DEBUG "%s: PE timeout Event 40 (%d) " - "in ecp_read_block_pio\n", port->name, r); - return 0; - } - } - - /* Set up ECP FIFO mode.*/ -/* parport_pc_frob_control(port, - PARPORT_CONTROL_STROBE | - PARPORT_CONTROL_AUTOFD, - PARPORT_CONTROL_AUTOFD); */ - r = change_mode(port, ECR_ECP); /* ECP FIFO */ - if (r) - printk(KERN_DEBUG "%s: Warning change_mode ECR_ECP failed\n", - port->name); - - port->ieee1284.phase = IEEE1284_PH_REV_DATA; - - /* the first byte must be collected manually */ - dump_parport_state("pre 43", port); - /* Event 43: Wait for nAck to go low */ - r = parport_wait_peripheral(port, PARPORT_STATUS_ACK, 0); - if (r) { - /* timed out while reading -- no data */ - printk(KERN_DEBUG "PIO read timed out (initial byte)\n"); - goto out_no_data; - } - /* read byte */ - *bufp++ = inb(DATA(port)); - left--; - dump_parport_state("43-44", port); - /* Event 44: nAutoFd (HostAck) goes high to acknowledge */ - parport_pc_frob_control(port, - PARPORT_CONTROL_AUTOFD, - 0); - dump_parport_state("pre 45", port); - /* Event 45: Wait for nAck to go high */ - /* r = parport_wait_peripheral(port, PARPORT_STATUS_ACK, - PARPORT_STATUS_ACK); */ - dump_parport_state("post 45", port); - r = 0; - if (r) { - /* timed out while waiting for peripheral to respond to ack */ - printk(KERN_DEBUG "ECP PIO read timed out (waiting for nAck)\n"); - - /* keep hold of the byte we've got already */ - goto out_no_data; - } - /* Event 46: nAutoFd (HostAck) goes low to accept more data */ - parport_pc_frob_control(port, - PARPORT_CONTROL_AUTOFD, - PARPORT_CONTROL_AUTOFD); - - - dump_parport_state("rev idle", port); - /* Do the transfer. */ - while (left > fifofull) { - int ret; - unsigned long expire = jiffies + port->cad->timeout; - unsigned char ecrval = inb(ECONTROL(port)); - - if (need_resched() && time_before(jiffies, expire)) - /* Can't yield the port. */ - schedule(); - - /* At this point, the FIFO may already be full. In - * that case ECP is already holding back the - * peripheral (assuming proper design) with a delayed - * handshake. Work fast to avoid a peripheral - * timeout. */ - - if (ecrval & 0x01) { - /* FIFO is empty. Wait for interrupt. */ - dump_parport_state("FIFO empty", port); - - /* Anyone else waiting for the port? */ - if (port->waithead) { - printk(KERN_DEBUG "Somebody wants the port\n"); - break; - } - - /* Clear serviceIntr */ - ECR_WRITE(port, ecrval & ~(1<<2)); -false_alarm: - dump_parport_state("waiting", port); - ret = parport_wait_event(port, HZ); - DPRINTK(KERN_DEBUG "parport_wait_event returned %d\n", - ret); - if (ret < 0) - break; - ret = 0; - if (!time_before(jiffies, expire)) { - /* Timed out. */ - dump_parport_state("timeout", port); - printk(KERN_DEBUG "PIO read timed out\n"); - break; - } - ecrval = inb(ECONTROL(port)); - if (!(ecrval & (1<<2))) { - if (need_resched() && - time_before(jiffies, expire)) { - schedule(); - } - goto false_alarm; - } - - /* Depending on how the FIFO threshold was - * set, how long interrupt service took, and - * how fast the peripheral is, we might be - * lucky and have a just filled FIFO. */ - continue; - } - - if (ecrval & 0x02) { - /* FIFO is full. */ - dump_parport_state("FIFO full", port); - insb(fifo, bufp, fifo_depth); - bufp += fifo_depth; - left -= fifo_depth; - continue; - } - - DPRINTK(KERN_DEBUG - "*** ecp_read_block_pio: reading one byte from the FIFO\n"); - - /* FIFO not filled. We will cycle this loop for a while - * and either the peripheral will fill it faster, - * tripping a fast empty with insb, or we empty it. */ - *bufp++ = inb(fifo); - left--; - } - - /* scoop up anything left in the FIFO */ - while (left && !(inb(ECONTROL(port) & 0x01))) { - *bufp++ = inb(fifo); - left--; - } - - port->ieee1284.phase = IEEE1284_PH_REV_IDLE; - dump_parport_state("rev idle2", port); - -out_no_data: - - /* Go to forward idle mode to shut the peripheral up (event 47). */ - parport_frob_control(port, PARPORT_CONTROL_INIT, PARPORT_CONTROL_INIT); - - /* event 49: PError goes high */ - r = parport_wait_peripheral(port, - PARPORT_STATUS_PAPEROUT, - PARPORT_STATUS_PAPEROUT); - if (r) { - printk(KERN_DEBUG - "%s: PE timeout FWDIDLE (%d) in ecp_read_block_pio\n", - port->name, r); - } - - port->ieee1284.phase = IEEE1284_PH_FWD_IDLE; - - /* Finish up. */ - { - int lost = get_fifo_residue(port); - if (lost) - /* Shouldn't happen with compliant peripherals. */ - printk(KERN_DEBUG "%s: DATA LOSS (%d bytes)!\n", - port->name, lost); - } - - dump_parport_state("fwd idle", port); - return length - left; -} -#endif /* 0 */ #endif /* IEEE 1284 support */ #endif /* Allowed to use FIFO/DMA */ diff --git a/drivers/parport/parport_sunbpp.c b/drivers/parport/parport_sunbpp.c index 9390a534a2b..983a2d2df65 100644 --- a/drivers/parport/parport_sunbpp.c +++ b/drivers/parport/parport_sunbpp.c @@ -82,27 +82,6 @@ static unsigned char parport_sunbpp_read_data(struct parport *p) return sbus_readb(®s->p_dr); } -#if 0 -static void control_pc_to_sunbpp(struct parport *p, unsigned char status) -{ - struct bpp_regs __iomem *regs = (struct bpp_regs __iomem *)p->base; - unsigned char value_tcr = sbus_readb(®s->p_tcr); - unsigned char value_or = sbus_readb(®s->p_or); - - if (status & PARPORT_CONTROL_STROBE) - value_tcr |= P_TCR_DS; - if (status & PARPORT_CONTROL_AUTOFD) - value_or |= P_OR_AFXN; - if (status & PARPORT_CONTROL_INIT) - value_or |= P_OR_INIT; - if (status & PARPORT_CONTROL_SELECT) - value_or |= P_OR_SLCT_IN; - - sbus_writeb(value_or, ®s->p_or); - sbus_writeb(value_tcr, ®s->p_tcr); -} -#endif - static unsigned char status_sunbpp_to_pc(struct parport *p) { struct bpp_regs __iomem *regs = (struct bpp_regs __iomem *)p->base; diff --git a/include/linux/spi/eeprom.h b/include/linux/spi/eeprom.h index 306e7b1c69e..403e007aef6 100644 --- a/include/linux/spi/eeprom.h +++ b/include/linux/spi/eeprom.h @@ -20,6 +20,16 @@ struct spi_eeprom { #define EE_ADDR3 0x0004 /* 24 bit addrs */ #define EE_READONLY 0x0008 /* disallow writes */ + /* + * Certain EEPROMS have a size that is larger than the number of address + * bytes would allow (e.g. like M95040 from ST that has 512 Byte size + * but uses only one address byte (A0 to A7) for addressing.) For + * the extra address bit (A8, A16 or A24) bit 3 of the instruction byte + * is used. This instruction bit is normally defined as don't care for + * other AT25 like chips. + */ +#define EE_INSTR_BIT3_IS_ADDR 0x0010 + /* for exporting this chip's data to other kernel code */ void (*setup)(struct memory_accessor *mem, void *context); void *context; |