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-rw-r--r--drivers/dma/idma64.c6
-rw-r--r--drivers/dma/idma64.h2
-rw-r--r--drivers/spi/spi-pxa2xx.c7
-rw-r--r--drivers/tty/serial/8250/8250_dw.c4
4 files changed, 9 insertions, 10 deletions
diff --git a/drivers/dma/idma64.c b/drivers/dma/idma64.c
index 0baf9797cc09..83796a33dc16 100644
--- a/drivers/dma/idma64.c
+++ b/drivers/dma/idma64.c
@@ -592,7 +592,7 @@ static int idma64_probe(struct idma64_chip *chip)
idma64->dma.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV);
idma64->dma.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
- idma64->dma.dev = chip->dev;
+ idma64->dma.dev = chip->sysdev;
dma_set_max_seg_size(idma64->dma.dev, IDMA64C_CTLH_BLOCK_TS_MASK);
@@ -632,6 +632,7 @@ static int idma64_platform_probe(struct platform_device *pdev)
{
struct idma64_chip *chip;
struct device *dev = &pdev->dev;
+ struct device *sysdev = dev->parent;
struct resource *mem;
int ret;
@@ -648,11 +649,12 @@ static int idma64_platform_probe(struct platform_device *pdev)
if (IS_ERR(chip->regs))
return PTR_ERR(chip->regs);
- ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+ ret = dma_coerce_mask_and_coherent(sysdev, DMA_BIT_MASK(64));
if (ret)
return ret;
chip->dev = dev;
+ chip->sysdev = sysdev;
ret = idma64_probe(chip);
if (ret)
diff --git a/drivers/dma/idma64.h b/drivers/dma/idma64.h
index 6b816878e5e7..baa32e1425de 100644
--- a/drivers/dma/idma64.h
+++ b/drivers/dma/idma64.h
@@ -216,12 +216,14 @@ static inline void idma64_writel(struct idma64 *idma64, int offset, u32 value)
/**
* struct idma64_chip - representation of iDMA 64-bit controller hardware
* @dev: struct device of the DMA controller
+ * @sysdev: struct device of the physical device that does DMA
* @irq: irq line
* @regs: memory mapped I/O space
* @idma64: struct idma64 that is filed by idma64_probe()
*/
struct idma64_chip {
struct device *dev;
+ struct device *sysdev;
int irq;
void __iomem *regs;
struct idma64 *idma64;
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index b6ddba833d02..5ea70f7d12e7 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1487,12 +1487,7 @@ static int pxa2xx_spi_get_port_id(struct acpi_device *adev)
static bool pxa2xx_spi_idma_filter(struct dma_chan *chan, void *param)
{
- struct device *dev = param;
-
- if (dev != chan->device->dev->parent)
- return false;
-
- return true;
+ return param == chan->device->dev;
}
#endif /* CONFIG_PCI */
diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index d31b975dd3fd..284e8d052fc3 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -365,7 +365,7 @@ static bool dw8250_fallback_dma_filter(struct dma_chan *chan, void *param)
static bool dw8250_idma_filter(struct dma_chan *chan, void *param)
{
- return param == chan->device->dev->parent;
+ return param == chan->device->dev;
}
/*
@@ -434,7 +434,7 @@ static void dw8250_quirks(struct uart_port *p, struct dw8250_data *data)
data->uart_16550_compatible = true;
}
- /* Platforms with iDMA */
+ /* Platforms with iDMA 64-bit */
if (platform_get_resource_byname(to_platform_device(p->dev),
IORESOURCE_MEM, "lpss_priv")) {
data->dma.rx_param = p->dev->parent;