tree d8fa2d12a6a16ec496d7f0db0d23f66deb05ce1c
parent 49e4a5fcadfe6e7f00a875c5241677bef2174b49
author Samuel Holland <samuel@sholland.org> 1610780738 -0600
committer Samuel Holland <samuel@sholland.org> 1611529984 -0600

allwinner: psci: Drop .get_node_hw_state callback

This optional PSCI function was only implemented when SCPI was
available. However, the underlying SCPI function is not able to fulfill
the necessary contract. First, the SCPI protocol has no way to represent
HW_STANDBY at the CPU power level. Second, the SCPI implementation
maintains its own logical view of power states, and its implementation
of SCPI_CMD_GET_CSS_POWER_STATE does not actually query the hardware.
Thus it cannot provide "the physical view of power state", as required
for this function by the PSCI specification.

Since the function is optional, drop it.

Change-Id: I5f3a0810ac19ddeb3c0c5d35aeb09f09a0b80c1d
Signed-off-by: Samuel Holland <samuel@sholland.org>