linux-kernel - [PATCH] dmaengine: dw-edma: Add HDMA NATIVE map check

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Message-ID: <20250408062604.2809548-1-devverma@amd.com>
Date: Tue, 8 Apr 2025 11:56:04 +0530
From: Devendra K Verma <devverma@....com>
To: <manivannan.sadhasivam@...aro.org>, <vkoul@...nel.org>
CC: <dmaengine@...r.kernel.org>, <michal.simek@....com>,
	<linux-kernel@...r.kernel.org>
Subject: [PATCH] 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 <devverma@....com>
---
 drivers/dma/dw-edma/dw-edma-pcie.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/dw-edma/dw-edma-pcie.c b/drivers/dma/dw-edma/dw-edma-pcie.c
index 1c6043751dc9..42b2a554f7a5 100644
--- a/drivers/dma/dw-edma/dw-edma-pcie.c
+++ b/drivers/dma/dw-edma/dw-edma-pcie.c
@@ -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;
-- 
2.43.0