regLSDMA_MEM_POWER_CTRL
tmp = RREG32_SOC15(LSDMA, 0, regLSDMA_MEM_POWER_CTRL);
WREG32_SOC15(LSDMA, 0, regLSDMA_MEM_POWER_CTRL, tmp);
WREG32_SOC15(LSDMA, 0, regLSDMA_MEM_POWER_CTRL, tmp);
tmp = RREG32_SOC15(LSDMA, 0, regLSDMA_MEM_POWER_CTRL);
WREG32_SOC15(LSDMA, 0, regLSDMA_MEM_POWER_CTRL, tmp);
WREG32_SOC15(LSDMA, 0, regLSDMA_MEM_POWER_CTRL, tmp);