ATOM_CV_LINE3_ASPECTRATIO_4_3_LETBOX_GPIO_A 4424 drivers/gpu/drm/amd/include/atombios.h #define ATOM_CV_LINE3_ASPECTRATIO_4_3_LETBOX_GPIO_A 0x04     //represent gpio 3 state for 4:3 Letter box
ATOM_CV_LINE3_ASPECTRATIO_4_3_LETBOX_GPIO_A 3932 drivers/gpu/drm/radeon/atombios.h #define ATOM_CV_LINE3_ASPECTRATIO_4_3_LETBOX_GPIO_A 0x04     //represent gpio 3 state for 4:3 Letter box