diff options
| author | Dave Airlie <airlied@redhat.com> | 2010-08-10 13:21:39 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-08-10 13:21:39 +1000 |
| commit | 31de43bf9d9eb93cc2b2150474ea7404beabe49d (patch) | |
| tree | e66ed7e9ed2354ac27c9f02c2cffa756eaeaef66 /src/atombios_output.c | |
| parent | 9ef67335583d36080d227e8bce1966afe08e0486 (diff) | |
displayport: retry on timeout
this is ported from KMS
Diffstat (limited to 'src/atombios_output.c')
| -rw-r--r-- | src/atombios_output.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/src/atombios_output.c b/src/atombios_output.c index ee024a64..2feacdee 100644 --- a/src/atombios_output.c +++ b/src/atombios_output.c @@ -2002,6 +2002,7 @@ RADEONProcessAuxCH(xf86OutputPtr output, uint8_t *req_bytes, uint8_t num_bytes, AtomBiosArgRec data; unsigned char *space; unsigned char *base; + int retry_count = 0; memset(&args, 0, sizeof(args)); if (info->atomBIOS->fbBase) @@ -2011,6 +2012,7 @@ RADEONProcessAuxCH(xf86OutputPtr output, uint8_t *req_bytes, uint8_t num_bytes, else return FALSE; +retry: memcpy(base, req_bytes, num_bytes); args.v1.lpAuxRequest = 0; @@ -2026,9 +2028,11 @@ RADEONProcessAuxCH(xf86OutputPtr output, uint8_t *req_bytes, uint8_t num_bytes, data.exec.pspace = &args; RHDAtomBiosFunc(info->atomBIOS->scrnIndex, info->atomBIOS, ATOMBIOS_EXEC, &data); - if (args.v1.ucReplyStatus) { - ErrorF("failed to get auxch %02x%02x %02x %02x %02x\n", - req_bytes[1], req_bytes[0], req_bytes[2], req_bytes[3], args.v1.ucReplyStatus); + if (args.v1.ucReplyStatus && !args.v1.ucDataOutLen) { + if (args.v1.ucReplyStatus == 0x20 && retry_count++ < 10) + goto retry; + ErrorF("failed to get auxch %02x%02x %02x %02x %02x after %d retries\n", + req_bytes[1], req_bytes[0], req_bytes[2], req_bytes[3], args.v1.ucReplyStatus, retry_count); return FALSE; } if (args.v1.ucDataOutLen && read_byte && read_buf_len) { @@ -2066,7 +2070,7 @@ RADEONDPEncoderService(xf86OutputPtr output, int action, uint8_t ucconfig, uint8 RHDAtomBiosFunc(info->atomBIOS->scrnIndex, info->atomBIOS, ATOMBIOS_EXEC, &data); - ErrorF("%s: %d\n", __func__, args.ucStatus); + ErrorF("%s: %d %d\n", __func__, action, args.ucStatus); return args.ucStatus; } |