This patch adds support to PM8821 PMIC and interrupt support.
PM8821 is companion device that supplements primary PMIC PM8921 IC.
Signed-off-by: NSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: NRob Herring <robh@kernel.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>