This patch adds dma_request_slave_channel_reason() calling to request
dma slave channels for multiplatform environment.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
---
.../devicetree/bindings/usb/renesas_usbhs.txt | 2 ++
drivers/usb/renesas_usbhs/fifo.c | 11 ++++++++++-
2 files changed, 12 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
index b08c903..61b045b 100644
--- a/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
+++ b/Documentation/devicetree/bindings/usb/renesas_usbhs.txt
@@ -14,6 +14,8 @@ Optional properties:
function should be enabled
- phys: phandle + phy specifier pair
- phy-names: must be "usb"
+ - dmas: Must contain a list of references to DMA specifiers.
+ - dma-names : Must contain a list of DMA names, "tx" or "rx".
Example:
usbhs: usb@e6590000 {
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index 48e31b9..4c086b1 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -1069,12 +1069,21 @@ static void usbhsf_dma_init_pdev(struct usbhs_fifo *fifo)
&fifo->rx_slave);
}
+static void usbhsf_dma_init_dt(struct device *dev, struct usbhs_fifo *fifo)
+{
+ fifo->tx_chan = dma_request_slave_channel_reason(dev, "tx");
+ fifo->rx_chan = dma_request_slave_channel_reason(dev, "rx");
+}
+
static void usbhsf_dma_init(struct usbhs_priv *priv,
struct usbhs_fifo *fifo)
{
struct device *dev = usbhs_priv_to_dev(priv);
- usbhsf_dma_init_pdev(fifo);
+ if (dev->of_node)
+ usbhsf_dma_init_dt(dev, fifo);
+ else
+ usbhsf_dma_init_pdev(fifo);
if (fifo->tx_chan || fifo->rx_chan)
dev_dbg(dev, "enable DMAEngine (%s%s%s)\n",
--
1.7.9.5
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