mmCRTC_TEST_PATTERN_PARAMETERS
dm_write_reg(ctx, CRTC_REG(mmCRTC_TEST_PATTERN_PARAMETERS),
addr = CRTC_REG(mmCRTC_TEST_PATTERN_PARAMETERS);
addr = CRTC_REG(mmCRTC_TEST_PATTERN_PARAMETERS);
addr = CRTC_REG(mmCRTC_TEST_PATTERN_PARAMETERS);