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