CH7xxx_IDF        302 drivers/gpu/drm/i915/display/dvo_ch7xxx.c 	ch7xxx_readb(dvo, CH7xxx_IDF, &idf);
CH7xxx_IDF        311 drivers/gpu/drm/i915/display/dvo_ch7xxx.c 	ch7xxx_writeb(dvo, CH7xxx_IDF, idf);