vlv_cck_read
val = vlv_cck_read(display->drm, CCK_DISPLAY_CLOCK_CONTROL);
ret = poll_timeout_us(val = vlv_cck_read(display->drm, CCK_DISPLAY_CLOCK_CONTROL),
hpll_freq = vlv_cck_read(drm, CCK_FUSE_REG) &
val = vlv_cck_read(drm, reg);
ret = poll_timeout_us(val = vlv_cck_read(display->drm, CCK_REG_DSI_PLL_CONTROL),
tmp = vlv_cck_read(display->drm, CCK_REG_DSI_PLL_CONTROL);
pll_ctl = vlv_cck_read(display->drm, CCK_REG_DSI_PLL_CONTROL);
pll_div = vlv_cck_read(display->drm, CCK_REG_DSI_PLL_DIVIDER);
cur_state = vlv_cck_read(display->drm, CCK_REG_DSI_PLL_CONTROL) & DSI_PLL_VCO_EN;