diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_sdvo.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_sdvo.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c index eea58c6cb05..d0c1d1e6b41 100644 --- a/drivers/gpu/drm/i915/intel_sdvo.c +++ b/drivers/gpu/drm/i915/intel_sdvo.c @@ -877,17 +877,24 @@ static bool intel_sdvo_set_avi_infoframe(struct intel_sdvo *intel_sdvo) }; uint8_t tx_rate = SDVO_HBUF_TX_VSYNC; uint8_t set_buf_index[2] = { 1, 0 }; - uint64_t *data = (uint64_t *)&avi_if; + uint8_t sdvo_data[4 + sizeof(avi_if.body.avi)]; + uint64_t *data = (uint64_t *)sdvo_data; unsigned i; intel_dip_infoframe_csum(&avi_if); + /* sdvo spec says that the ecc is handled by the hw, and it looks like + * we must not send the ecc field, either. */ + memcpy(sdvo_data, &avi_if, 3); + sdvo_data[3] = avi_if.checksum; + memcpy(&sdvo_data[4], &avi_if.body, sizeof(avi_if.body.avi)); + if (!intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_HBUF_INDEX, set_buf_index, 2)) return false; - for (i = 0; i < sizeof(avi_if); i += 8) { + for (i = 0; i < sizeof(sdvo_data); i += 8) { if (!intel_sdvo_set_value(intel_sdvo, SDVO_CMD_SET_HBUF_DATA, data, 8)) |