• Daniel Ribeiro's avatar
    mfd: add PCAP driver · 13a09f93
    Daniel Ribeiro authored
    The PCAP Asic as present on EZX phones is a multi function device with
    voltage regulators, ADC, touch screen controller, RTC, USB transceiver,
    leds controller, and audio codec.
    
    It has two SPI ports, typically one is connected to the application
    processor and another to the baseband, this driver provides read/write
    functions to its registers, irq demultiplexer and ADC
    queueing/abstraction.
    
    This chip is used on a lot of Motorola phones, it was manufactured by TI
    as a custom product with the name PTWL93017, later this design evolved
    into the ATLAS PMIC from Freescale (MC13783).
    Signed-off-by: default avatarDaniel Ribeiro <drwyrm@gmail.com>
    Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
    13a09f93
ezx-pcap.c 11.6 KB