chk_sum          2103 drivers/gpu/drm/amd/display/dc/core/dc_resource.c 		uint8_t chk_sum = 0;
chk_sum          2111 drivers/gpu/drm/amd/display/dc/core/dc_resource.c 			chk_sum += ptr[i];
chk_sum          2113 drivers/gpu/drm/amd/display/dc/core/dc_resource.c 		gamut_packet->sb[2] = (uint8_t) (0x100 - chk_sum);