ATOM_GPIO_SETTINGS_RESERVED_MASK 4400 drivers/gpu/drm/amd/include/atombios.h #define ATOM_GPIO_SETTINGS_RESERVED_MASK  0x60    // [6:5] = must be zeroed out
ATOM_GPIO_SETTINGS_RESERVED_MASK 3908 drivers/gpu/drm/radeon/atombios.h #define ATOM_GPIO_SETTINGS_RESERVED_MASK  0x60    // [6:5] = must be zeroed out