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authorSerge Semin <Sergey.Semin@baikalelectronics.ru>2020-05-15 12:47:50 +0200
committerMark Brown <broonie@kernel.org>2020-05-15 19:29:16 +0200
commit77810d484f4f28107391787dfa1c6c53d994c4fc (patch)
tree8d466a2a6021d7b664ee3adb1bf14b7a7e03fb40 /drivers/spi/spi-dw-mmio.c
parentspi: dw: Fix native CS being unset (diff)
downloadlinux-77810d484f4f28107391787dfa1c6c53d994c4fc.tar.xz
linux-77810d484f4f28107391787dfa1c6c53d994c4fc.zip
spi: dw: Initialize paddr in DW SPI MMIO private data
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> Co-developed-by: Ramil Zaripov <Ramil.Zaripov@baikalelectronics.ru> Signed-off-by: Georgy Vlasov <Georgy.Vlasov@baikalelectronics.ru> Signed-off-by: Ramil Zaripov <Ramil.Zaripov@baikalelectronics.ru> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20200515104758.6934-12-Sergey.Semin@baikalelectronics.ru Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi/spi-dw-mmio.c')
-rw-r--r--drivers/spi/spi-dw-mmio.c5
1 files changed, 4 insertions, 1 deletions
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 */