Since the common code in the spi-dw-dma.c driver is ready to be used by the MMIO driver and now provides a method to generically (on any DT or ACPI-based platforms) retrieve the Tx/Rx DMA channel handlers, we can use it and a set of the common DW SPI DMA callbacks to enable DMA at least for generic "snps,dw-apb-ssi" and "snps,dwc-ssi-1.01a" devices. Co-developed-by: Georgy Vlasov <Georgy.Vlasov@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Georgy Vlasov <Georgy.Vlasov@xxxxxxxxxxxxxxxxxxxx> Co-developed-by: Ramil Zaripov <Ramil.Zaripov@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Ramil Zaripov <Ramil.Zaripov@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx> Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Cc: Alexey Malahov <Alexey.Malahov@xxxxxxxxxxxxxxxxxxxx> Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx> Cc: Paul Burton <paulburton@xxxxxxxxxx> Cc: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> Cc: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Cc: Rob Herring <robh+dt@xxxxxxxxxx> Cc: linux-mips@xxxxxxxxxxxxxxx Cc: devicetree@xxxxxxxxxxxxxxx --- drivers/spi/spi-dw-mmio.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c index 0894b4c09496..e23d0c53a664 100644 --- a/drivers/spi/spi-dw-mmio.c +++ b/drivers/spi/spi-dw-mmio.c @@ -149,6 +149,8 @@ static int dw_spi_dw_apb_init(struct platform_device *pdev, /* Register hook to configure CTRLR0 */ dwsmmio->dws.update_cr0 = dw_spi_update_cr0; + dw_spi_dma_setup_generic(&dwsmmio->dws); + return 0; } @@ -158,6 +160,8 @@ static int dw_spi_dwc_ssi_init(struct platform_device *pdev, /* Register hook to configure CTRLR0 */ dwsmmio->dws.update_cr0 = dw_spi_update_cr0_v1_01a; + dw_spi_dma_setup_generic(&dwsmmio->dws); + return 0; } -- 2.25.1
