[PATCH 4.4 41/92] spi: pxa2xx: Allow 64-bit DMA

From: Greg Kroah-Hartman
Date: Thu May 24 2018 - 07:12:06 EST


4.4-stable review patch. If anyone has any objections, please let me know.

------------------

From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>

commit efc4a13724b852ddaa3358402a8dec024ffbcb17 upstream.

Currently the 32-bit device address only is supported for DMA. However,
starting from Intel Sunrisepoint PCH the DMA address of the device FIFO
can be 64-bit.

Change the respective variable to be compatible with DMA engine
expectations, i.e. to phys_addr_t.

Fixes: 34cadd9c1bcb ("spi: pxa2xx: Add support for Intel Sunrisepoint")
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
drivers/spi/spi-pxa2xx.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/spi/spi-pxa2xx.h
+++ b/drivers/spi/spi-pxa2xx.h
@@ -38,7 +38,7 @@ struct driver_data {

/* SSP register addresses */
void __iomem *ioaddr;
- u32 ssdr_physical;
+ phys_addr_t ssdr_physical;

/* SSP masks*/
u32 dma_cr1;