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[v2,11/19] spi: dw: Initialize paddr in DW SPI MMIO private data

Message ID 20200515104758.6934-12-Sergey.Semin@baikalelectronics.ru
State New
Headers show
Series [v2,01/19] dt-bindings: spi: dw: Add Tx/Rx DMA properties | expand

Commit Message

Serge Semin May 15, 2020, 10:47 a.m. UTC 
This field is used only for the DW SPI DMA code initialization, that's
why there were no problems with it being uninitialized in Dw SPI MMIO
driver. Since in a further patch we are going to introduce the DW SPI DMA
support in the MMIO version of the driver, lets set the field with the
physical address of the DW SPI controller registers region.

Co-developed-by: Georgy Vlasov <Georgy.Vlasov@baikalelectronics.ru>
Signed-off-by: Georgy Vlasov <Georgy.Vlasov@baikalelectronics.ru>
Co-developed-by: Ramil Zaripov <Ramil.Zaripov@baikalelectronics.ru>
Signed-off-by: Ramil Zaripov <Ramil.Zaripov@baikalelectronics.ru>
Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Allison Randal <allison@lohutok.net>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Gareth Williams <gareth.williams.jx@renesas.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: devicetree@vger.kernel.org
---
 drivers/spi/spi-dw-mmio.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c
index 398f7926cf92..0894b4c09496 100644
--- a/drivers/spi/spi-dw-mmio.c
+++ b/drivers/spi/spi-dw-mmio.c
@@ -184,6 +184,7 @@  static int dw_spi_mmio_probe(struct platform_device *pdev)
 	int (*init_func)(struct platform_device *pdev,
 			 struct dw_spi_mmio *dwsmmio);
 	struct dw_spi_mmio *dwsmmio;
+	struct resource *mem;
 	struct dw_spi *dws;
 	int ret;
 	int num_cs;
@@ -196,10 +197,12 @@  static int dw_spi_mmio_probe(struct platform_device *pdev)
 	dws = &dwsmmio->dws;
 
 	/* Get basic io resource and map it */
-	dws->regs = devm_platform_ioremap_resource(pdev, 0);
+	dws->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &mem);
 	if (IS_ERR(dws->regs))
 		return PTR_ERR(dws->regs);
 
+	dws->paddr = mem->start;
+
 	dws->irq = platform_get_irq(pdev, 0);
 	if (dws->irq < 0)
 		return dws->irq; /* -ENXIO */