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/openbmc/linux/drivers/mfd/ |
H A D | Makefile | 0931a4c6 Mon Dec 22 05:05:27 CST 2008 David Brownell <dbrownell@users.sourceforge.net> mfd: dm355evm msp430 driver
Basic MFD framework for the MSP430 microcontroller firmware used on the dm355evm board:
- Provides an interface for other drivers: register read/write utilities, and register declarations.
- Directly exports: * Many signals through the GPIO framework + LEDs + SW6 through gpio sysfs + NTSC/nPAL jumper through gpio sysfs + ... more could be added later, e.g. MMC signals * Child devices: + LEDs, via leds-gpio child (and default triggers) + RTC, via rtc-dm355evm child device + Buttons and IR control, via dm355evm_keys
- Supports power-off system call. Use the reset button to power the board back up; the power supply LED will be on, but the MSP430 waits to re-activate the regulators.
- On probe() this: * Announces firmware revision * Turns off the banked LEDs * Exports the resources noted above * Hooks the power-off support * Muxes tvp5146 -or- imager for video input
Unless the new tvp514x driver (tracked for mainline) is configured, this assumes that some custom imager driver handles video-in.
This completely ignores the registers reporting the output voltages on the various power supplies. Someone could add a hwmon interface if that seems useful.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
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H A D | Kconfig | 0931a4c6 Mon Dec 22 05:05:27 CST 2008 David Brownell <dbrownell@users.sourceforge.net> mfd: dm355evm msp430 driver
Basic MFD framework for the MSP430 microcontroller firmware used on the dm355evm board:
- Provides an interface for other drivers: register read/write utilities, and register declarations.
- Directly exports: * Many signals through the GPIO framework + LEDs + SW6 through gpio sysfs + NTSC/nPAL jumper through gpio sysfs + ... more could be added later, e.g. MMC signals * Child devices: + LEDs, via leds-gpio child (and default triggers) + RTC, via rtc-dm355evm child device + Buttons and IR control, via dm355evm_keys
- Supports power-off system call. Use the reset button to power the board back up; the power supply LED will be on, but the MSP430 waits to re-activate the regulators.
- On probe() this: * Announces firmware revision * Turns off the banked LEDs * Exports the resources noted above * Hooks the power-off support * Muxes tvp5146 -or- imager for video input
Unless the new tvp514x driver (tracked for mainline) is configured, this assumes that some custom imager driver handles video-in.
This completely ignores the registers reporting the output voltages on the various power supplies. Someone could add a hwmon interface if that seems useful.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Samuel Ortiz <sameo@openedhand.com> 0931a4c6 Mon Dec 22 05:05:27 CST 2008 David Brownell <dbrownell@users.sourceforge.net> mfd: dm355evm msp430 driver Basic MFD framework for the MSP430 microcontroller firmware used on the dm355evm board: - Provides an interface for other drivers: register read/write utilities, and register declarations. - Directly exports: * Many signals through the GPIO framework + LEDs + SW6 through gpio sysfs + NTSC/nPAL jumper through gpio sysfs + ... more could be added later, e.g. MMC signals * Child devices: + LEDs, via leds-gpio child (and default triggers) + RTC, via rtc-dm355evm child device + Buttons and IR control, via dm355evm_keys - Supports power-off system call. Use the reset button to power the board back up; the power supply LED will be on, but the MSP430 waits to re-activate the regulators. - On probe() this: * Announces firmware revision * Turns off the banked LEDs * Exports the resources noted above * Hooks the power-off support * Muxes tvp5146 -or- imager for video input Unless the new tvp514x driver (tracked for mainline) is configured, this assumes that some custom imager driver handles video-in. This completely ignores the registers reporting the output voltages on the various power supplies. Someone could add a hwmon interface if that seems useful. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
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