WMREG_PCH_LPT_SHRAL
addrl = WMREG_PCH_LPT_SHRAL(idx - 1);
#define WMREG_SHRAH(x) (WMREG_PCH_LPT_SHRAL(x) + 4)
#define WMREG_PCH_LPT_SHRAH(x) (WMREG_PCH_LPT_SHRAL(x) + 4)