7444a72eff
This patch adds functionality to the gpio-lib subsystem to make it possible to enable the gpio-lib code even if the architecture code didn't request to get it built in. The archtitecture code does still need to implement the gpiolib accessor functions in its asm/gpio.h file. This patch adds the implementations for x86 and PPC. With these changes it is possible to run generic GPIO expansion cards on every architecture that implements the trivial wrapper functions. Support for more architectures can easily be added. Signed-off-by: Michael Buesch <mb@bu3sch.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: David Brownell <david-b@pacbell.net> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jean Delvare <khali@linux-fr.org> Cc: Samuel Ortiz <sameo@openedhand.com> Cc: Kumar Gala <galak@gate.crashing.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
176 lines
5.8 KiB
Plaintext
176 lines
5.8 KiB
Plaintext
#
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# Miscellaneous I2C chip drivers configuration
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#
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menu "Miscellaneous I2C Chip support"
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config DS1682
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tristate "Dallas DS1682 Total Elapsed Time Recorder with Alarm"
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depends on EXPERIMENTAL
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help
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If you say yes here you get support for Dallas Semiconductor
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DS1682 Total Elapsed Time Recorder.
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This driver can also be built as a module. If so, the module
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will be called ds1682.
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config AT24
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tristate "EEPROMs from most vendors"
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depends on SYSFS && EXPERIMENTAL
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help
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Enable this driver to get read/write support to most I2C EEPROMs,
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after you configure the driver to know about each EEPROM on
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your target board. Use these generic chip names, instead of
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vendor-specific ones like at24c64 or 24lc02:
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24c00, 24c01, 24c02, spd (readonly 24c02), 24c04, 24c08,
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24c16, 24c32, 24c64, 24c128, 24c256, 24c512, 24c1024
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Unless you like data loss puzzles, always be sure that any chip
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you configure as a 24c32 (32 kbit) or larger is NOT really a
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24c16 (16 kbit) or smaller, and vice versa. Marking the chip
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as read-only won't help recover from this. Also, if your chip
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has any software write-protect mechanism you may want to review the
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code to make sure this driver won't turn it on by accident.
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If you use this with an SMBus adapter instead of an I2C adapter,
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full functionality is not available. Only smaller devices are
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supported (24c16 and below, max 4 kByte).
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This driver can also be built as a module. If so, the module
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will be called at24.
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config SENSORS_EEPROM
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tristate "EEPROM reader"
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depends on EXPERIMENTAL
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help
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If you say yes here you get read-only access to the EEPROM data
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available on modern memory DIMMs and Sony Vaio laptops. Such
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EEPROMs could theoretically be available on other devices as well.
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This driver can also be built as a module. If so, the module
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will be called eeprom.
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config SENSORS_PCF8574
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tristate "Philips PCF8574 and PCF8574A (DEPRECATED)"
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depends on EXPERIMENTAL && GPIO_PCF857X = "n"
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default n
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help
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If you say yes here you get support for Philips PCF8574 and
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PCF8574A chips. These chips are 8-bit I/O expanders for the I2C bus.
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This driver can also be built as a module. If so, the module
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will be called pcf8574.
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This driver is deprecated and will be dropped soon. Use
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drivers/gpio/pcf857x.c instead.
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These devices are hard to detect and rarely found on mainstream
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hardware. If unsure, say N.
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config PCF8575
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tristate "Philips PCF8575 (DEPRECATED)"
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default n
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depends on GPIO_PCF857X = "n"
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help
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If you say yes here you get support for Philips PCF8575 chip.
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This chip is a 16-bit I/O expander for the I2C bus. Several other
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chip manufacturers sell equivalent chips, e.g. Texas Instruments.
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This driver can also be built as a module. If so, the module
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will be called pcf8575.
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This driver is deprecated and will be dropped soon. Use
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drivers/gpio/pcf857x.c instead.
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This device is hard to detect and is rarely found on mainstream
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hardware. If unsure, say N.
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config SENSORS_PCA9539
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tristate "Philips PCA9539 16-bit I/O port (DEPRECATED)"
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depends on EXPERIMENTAL && GPIO_PCA953X = "n"
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help
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If you say yes here you get support for the Philips PCA9539
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16-bit I/O port.
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This driver can also be built as a module. If so, the module
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will be called pca9539.
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This driver is deprecated and will be dropped soon. Use
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drivers/gpio/pca953x.c instead.
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config SENSORS_PCF8591
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tristate "Philips PCF8591"
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depends on EXPERIMENTAL
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default n
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help
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If you say yes here you get support for Philips PCF8591 chips.
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This driver can also be built as a module. If so, the module
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will be called pcf8591.
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These devices are hard to detect and rarely found on mainstream
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hardware. If unsure, say N.
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config ISP1301_OMAP
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tristate "Philips ISP1301 with OMAP OTG"
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depends on ARCH_OMAP_OTG
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help
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If you say yes here you get support for the Philips ISP1301
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USB-On-The-Go transceiver working with the OMAP OTG controller.
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The ISP1301 is used in products including H2 and H3 development
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boards for Texas Instruments OMAP processors.
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This driver can also be built as a module. If so, the module
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will be called isp1301_omap.
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config TPS65010
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tristate "TPS6501x Power Management chips"
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depends on GPIOLIB
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default y if MACH_OMAP_H2 || MACH_OMAP_H3 || MACH_OMAP_OSK
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help
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If you say yes here you get support for the TPS6501x series of
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Power Management chips. These include voltage regulators,
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lithium ion/polymer battery charging, and other features that
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are often used in portable devices like cell phones and cameras.
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This driver can also be built as a module. If so, the module
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will be called tps65010.
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config SENSORS_MAX6875
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tristate "Maxim MAX6875 Power supply supervisor"
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depends on EXPERIMENTAL
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help
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If you say yes here you get support for the Maxim MAX6875
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EEPROM-programmable, quad power-supply sequencer/supervisor.
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This provides an interface to program the EEPROM and reset the chip.
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This driver also supports the Maxim MAX6874 hex power-supply
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sequencer/supervisor if found at a compatible address.
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This driver can also be built as a module. If so, the module
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will be called max6875.
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config SENSORS_TSL2550
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tristate "Taos TSL2550 ambient light sensor"
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depends on EXPERIMENTAL
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help
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If you say yes here you get support for the Taos TSL2550
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ambient light sensor.
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This driver can also be built as a module. If so, the module
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will be called tsl2550.
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config MENELAUS
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bool "TWL92330/Menelaus PM chip"
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depends on I2C=y && ARCH_OMAP24XX
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help
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If you say yes here you get support for the Texas Instruments
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TWL92330/Menelaus Power Management chip. This include voltage
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regulators, Dual slot memory card tranceivers, real-time clock
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and other features that are often used in portable devices like
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cell phones and PDAs.
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endmenu
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