• Kenneth Heitke's avatar
    add single-wire serial bus interface (SSBI) driver · e44b0cee
    Kenneth Heitke authored
    SSBI is the Qualcomm single-wire serial bus interface used to connect
    the MSM devices to the PMIC and other devices.
    Since SSBI only supports a single slave, the driver gets the name of the
    slave device passed in from the board file through the master device's
    platform data.
    SSBI registers pretty early (postcore), so that the PMIC can come up
    before the board init. This is useful if the board init requires the
    use of gpios that are connected through the PMIC.
    Based on a patch by Dima Zavin <dima@android.com> that can be found at:
    This patch adds PMIC Arbiter support for the MSM8660. The PMIC Arbiter
    is a hardware wrapper around the SSBI 2.0 controller that is designed to
    overcome concurrency issues and security limitations.  A controller_type
    field is added to the platform data to specify the type of the SSBI
    controller (1.0, 2.0, or PMIC Arbiter).
     I've moved this driver into drivers/ssbi/ and added an include for
     linux/module.h so that it will compile]
    Signed-off-by: default avatarKenneth Heitke <kheitke@codeaurora.org>
    Signed-off-by: default avatarDavid Brown <davidb@codeaurora.org>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Kconfig 2.65 KB