[PATCH v3 0/3] Add support for Hi3660 stub clock

From: Leo Yan Hi3660 has stub clocks for two CPU clusters, GPU and DDR; and the stub clocks use the mailbox to send message to MCU for frequency scaling. This patch set adds support Hi3660 stub clock, and since it needs to use mailbox so this patch set has dependency with

[PATCH v3 0/3] Add support for Hi3660 stub clock

From: Leo Yan Hi3660 has stub clocks for two CPU clusters, GPU and DDR; and the stub clocks use the mailbox to send message to MCU for frequency scaling. This patch set adds support Hi3660 stub clock, and since it needs to use mailbox so this patch set has dependency with Hi3660 mailbox patch