From 94472e4b2efb4954ed58bf9df9f4595fb038b679 Mon Sep 17 00:00:00 2001 From: Peter Geis Date: Wed, 4 Aug 2021 07:42:13 -0400 Subject: [PATCH 432/478] PCI: dwc: rockchip: set the dma_mask early Set the dma_mask to 32 bit early in probe to prevent issues with devices that only support 32 bit MSIs. Signed-off-by: Peter Geis --- drivers/pci/controller/dwc/pcie-dw-rockchip.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/pci/controller/dwc/pcie-dw-rockchip.c b/drivers/pci/controller/dwc/pcie-dw-rockchip.c index c9b341e55cbb..916ef44db981 100644 --- a/drivers/pci/controller/dwc/pcie-dw-rockchip.c +++ b/drivers/pci/controller/dwc/pcie-dw-rockchip.c @@ -215,6 +215,10 @@ static int rockchip_pcie_probe(struct platform_device *pdev) rockchip->pci.dev = dev; rockchip->pci.ops = &dw_pcie_ops; + ret = dma_set_mask(rockchip->pci.dev, DMA_BIT_MASK(32)); + if (ret) + dev_warn(rockchip->pci.dev, "Failed to set DMA mask to 32-bit. Devices with only 32-bit MSI support may not work properly\n"); + pp = &rockchip->pci.pp; pp->ops = &rockchip_pcie_host_ops; -- 2.35.3