mfd: 8821: Add support for pm8821 core driver

Add support for the Qualcomm PM8821 PMIC chip. The core driver
will communicate with the PMIC chip via the MSM SSBI bus.

Initial support is provided for: IRQ, MPP, and Debug

Signed-off-by: Jay Chokshi <jchokshi@codeaurora.org>
7 files changed