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Merge "disp: msm: dp: fix aux error handling"

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qctecmdr
2023-04-19 14:34:14 -07:00
committed by Gerrit - the friendly Code Review server
parent c8692b921b efbcec2fb0
commit 92bc0435a0
4 changed files with 68 additions and 32 deletions
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18
msm/dp/dp_panel.c
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@@ -3091,8 +3091,10 @@ int dp_panel_get_sink_crc(struct dp_panel *dp_panel, u16 *crc)
* per component (RGB or CrYCb).
*/
rc = drm_dp_dpcd_read(drm_aux, DP_TEST_CRC_R_CR, crc_bytes, 6);
if (rc < 0)
return rc;
if (rc != 6) {
DP_ERR("failed to read sink CRC, ret:%d\n", rc);
return -EIO;
}
rc = 0;
crc[0] = crc_bytes[0] | crc_bytes[1] << 8;
@@ -3115,12 +3117,16 @@ int dp_panel_sink_crc_enable(struct dp_panel *dp_panel, bool enable)
if (dp_panel->link_info.capabilities & DP_LINK_CAP_CRC) {
ret = drm_dp_dpcd_readb(drm_aux, DP_TEST_SINK, &buf);
if (ret < 0)
return ret;
if (ret != 1) {
DP_ERR("failed to read CRC cap, ret:%d\n", ret);
return -EIO;
}
ret = drm_dp_dpcd_writeb(drm_aux, DP_TEST_SINK, buf | DP_TEST_SINK_START);
if (ret < 0)
return ret;
if (ret != 1) {
DP_ERR("failed to enable Sink CRC, ret:%d\n", ret);
return -EIO;
}
drm_dp_dpcd_readb(drm_aux, DP_TEST_SINK, &buf);
}