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Such devices do not need the dw-edma-pcie pci_address callback, which translates a CPU MMIO address back to a PCI bus address. When the flag is set, select platform ops without a pci_address callback so dw-edma core passes the slave address through unchanged. No functional change intended. Existing matches do not set the new flag and continue to use dw_edma_pcie_address(). Signed-off-by: Koichiro Den --- drivers/dma/dw-edma/dw-edma-pcie.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/dma/dw-edma/dw-edma-pcie.c b/drivers/dma/dw-edma/dw-edma-pcie.c index cf2f09f1891c..651269708cc5 100644 --- a/drivers/dma/dw-edma/dw-edma-pcie.c +++ b/drivers/dma/dw-edma/dw-edma-pcie.c @@ -87,6 +87,7 @@ struct dw_edma_pcie_match_data { }; #define DW_EDMA_PCIE_F_DEVMEM_PHYS_OFF BIT(0) +#define DW_EDMA_PCIE_F_RAW_SLAVE_ADDR BIT(1) static const struct dw_edma_pcie_data snps_edda_data = { /* eDMA registers location */ @@ -208,6 +209,10 @@ static const struct dw_edma_plat_ops dw_edma_pcie_plat_ops = { .pci_address = dw_edma_pcie_address, }; +static const struct dw_edma_plat_ops dw_edma_pcie_raw_addr_plat_ops = { + .irq_vector = dw_edma_pcie_irq_vector, +}; + static void dw_edma_pcie_get_synopsys_dma_data(struct pci_dev *pdev, struct dw_edma_pcie_data *pdata) { @@ -435,7 +440,8 @@ static int dw_edma_pcie_probe(struct pci_dev *pdev, chip->mf = dma_data->mf; chip->default_irq_mode = match->default_irq_mode; chip->nr_irqs = nr_irqs; - chip->ops = &dw_edma_pcie_plat_ops; + chip->ops = match->flags & DW_EDMA_PCIE_F_RAW_SLAVE_ADDR ? + &dw_edma_pcie_raw_addr_plat_ops : &dw_edma_pcie_plat_ops; chip->cfg_non_ll = non_ll; chip->ll_wr_cnt = dma_data->wr_ch_cnt; -- 2.51.0