R92C_FPGA0_POWER_SAVE
rtwn_write_4(sc, R92C_FPGA0_POWER_SAVE,
rtwn_read_4(sc, R92C_FPGA0_POWER_SAVE) & ~0x20000);
rtwn_read_4(sc, R92C_FPGA0_POWER_SAVE) | 0x20000);