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dptx: MST: Limit the number of streams to configure based on IP configuration.

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Signed-off-by: Andrei-Liviu Simion <andrei.simion@xilinx.com>
This commit is contained in:
Andrei-Liviu Simion 2014-08-18 00:05:27 -07:00 • committed by Jagannadha Sutradharudu Teki
parent 91575b5dc2
commit 5c5f8b85a6
1 changed files with 11 additions and 5 deletions
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16
XilinxProcessorIPLib/drivers/dptx/examples/xdptx_mst_example.c
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@ -159,14 +159,14 @@ u32 Dptx_MstExample(XDptx *InstancePtr, u16 DeviceId)
Status = XDptx_MstCapable(InstancePtr);
if (Status != XST_SUCCESS) {
xil_printf("The immediate downstream DisplayPort device does "
"not have MST capabilities.\n");
/* If the immediate downstream RX device is an MST monitor and
* the DisplayPort Configuration Data (DPCD) does not indicate
* MST capability, it is likely that the MST or DisplayPort v1.2
* option must be selected from the monitor's option menu. */
xil_printf("Check that the RX device is operating with a "
"DisplayPort version greater or equal to 1.2.\n");
* option must be selected from the monitor's option menu.
* Likewise, the DisplayPort TX core must be configured to
* support MST mode. */
xil_printf("Verify DisplayPort MST capabilities in the TX "
"and/or RX device.\n");
return XST_FAILURE;
}
@ -210,6 +210,12 @@ u32 Dptx_MstExampleRun(XDptx *InstancePtr)
u8 Bpc = USE_BPC;
u8 NumStreams = NUM_STREAMS;
/* Limit the number of streams to configure based on the configuration
* of the DisplayPort core. */
if (NumStreams > InstancePtr->Config.NumMstStreams) {
NumStreams = InstancePtr->Config.NumMstStreams;
}
XDptx_EnableTrainAdaptive(InstancePtr, TRAIN_ADAPTIVE);
XDptx_SetHasRedriverInPath(InstancePtr, TRAIN_HAS_REDRIVER);