f2b03c1056
Add support s4 Power controller. In s4, power control registers are in secure domain, and should be accessed by smc. Signed-off-by: Shunzhou Jiang <shunzhou.jiang@amlogic.com> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Link: https://lore.kernel.org/r/20220307025357.1368673-3-shunzhou.jiang@amlogic.com