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dmaengine: dw-edma: Add HDMA NATIVE map check

PATCH Superseded Devendra K Verma 1 participant 1 message Apr 30, 2025

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dmaengine DesignWare edma core IP driver
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Devendra K Verma

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PATCH v2 1/1 dmaengine: dw-edma: Add HDMA NATIVE map check

The HDMA IP supports the HDMA_NATIVE map format as part of Vendor-Specific Extended Capability. Added the check for HDMA_NATIVE map format. The check for map format enables the IP specific function invocation during the DMA ops.

Signed-off-by Devendra K Verma <[email protected]>

---
Changes in v2
Addressed the review comments and added the 'Debug info' for HDMA_NATIVE in dw_edma_pcie_probe().

---
 drivers/dma/dw-edma/dw-edma-pcie.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
drivers/dma/dw-edma/dw-edma-pcie.c +4 -1
index 1c6043751dc9..49f09998e5c0 100644
@@ -136,7 +136,8 @@ static void dw_edma_pcie_get_vsec_dma_data(struct pci_dev *pdev,
 	map = FIELD_GET(DW_PCIE_VSEC_DMA_MAP, val);
 	if (map != EDMA_MF_EDMA_LEGACY &&
 	    map != EDMA_MF_EDMA_UNROLL &&
-	    map != EDMA_MF_HDMA_COMPAT)
+	    map != EDMA_MF_HDMA_COMPAT &&
+	    map != EDMA_MF_HDMA_NATIVE)
 		return;
 
 	pdata->mf = map;

@@ -291,6 +292,8 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev,
 		pci_dbg(pdev, "Version:\teDMA Unroll (0x%x)\n", chip->mf);
 	else if (chip->mf == EDMA_MF_HDMA_COMPAT)
 		pci_dbg(pdev, "Version:\tHDMA Compatible (0x%x)\n", chip->mf);
+	else if (chip->mf == EDMA_MF_HDMA_NATIVE)
+		pci_dbg(pdev, "Version:\tHDMA Native (0x%x)\n", chip->mf);
 	else
 		pci_dbg(pdev, "Version:\tUnknown (0x%x)\n", chip->mf);
Signature · 1 line
2.43.0