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path: root/drivers/mfd/gateworks-gsc.c
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2020-05-20mfd: Add Gateworks System Controller core driverTim Harvey1-0/+277
The Gateworks System Controller (GSC) is an I2C slave controller implemented with an MSP430 micro-controller whose firmware embeds the following features: - I/O expander (16 GPIO's) using PCA955x protocol - Real Time Clock using DS1672 protocol - User EEPROM using AT24 protocol - HWMON using custom protocol - Interrupt controller with tamper detect, user pushbotton - Watchdog controller capable of full board power-cycle - Power Control capable of full board power-cycle see http://trac.gateworks.com/wiki/gsc for more details Signed-off-by: Tim Harvey <tharvey@gateworks.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>