From 607c04a0441ff477666dca4744e94f555aa8fd65 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Tue, 3 May 2022 08:54:06 +0200 Subject: [PATCH] dmaengine: mmp: deprecate '#dma-channels' The generic property, used in most of the drivers and defined in generic dma-common DT bindings, is 'dma-channels'. Switch to new property while keeping backward compatibility. Signed-off-by: Krzysztof Kozlowski Link: https://lore.kernel.org/r/20220503065407.52188-4-krzysztof.kozlowski@linaro.org Signed-off-by: Vinod Koul --- drivers/dma/mmp_pdma.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c index 5a53d7fcef01..e8d71b35593e 100644 --- a/drivers/dma/mmp_pdma.c +++ b/drivers/dma/mmp_pdma.c @@ -1043,13 +1043,17 @@ static int mmp_pdma_probe(struct platform_device *op) return PTR_ERR(pdev->base); of_id = of_match_device(mmp_pdma_dt_ids, pdev->dev); - if (of_id) - of_property_read_u32(pdev->dev->of_node, "#dma-channels", - &dma_channels); - else if (pdata && pdata->dma_channels) + if (of_id) { + /* Parse new and deprecated dma-channels properties */ + if (of_property_read_u32(pdev->dev->of_node, "dma-channels", + &dma_channels)) + of_property_read_u32(pdev->dev->of_node, "#dma-channels", + &dma_channels); + } else if (pdata && pdata->dma_channels) { dma_channels = pdata->dma_channels; - else + } else { dma_channels = 32; /* default 32 channel */ + } pdev->dma_channels = dma_channels; for (i = 0; i < dma_channels; i++) {