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authorYoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>2015-01-19 06:53:16 +0300
committerFelipe Balbi <balbi@ti.com>2015-01-27 18:34:57 +0300
commit6e3f53ab5bd3092e195b290802208a39261fdf26 (patch)
tree29e355f2d7e359c9ff4a8cf103096c4386d28d5c /drivers/usb/renesas_usbhs
parent16eb1a67f3e6f8b90474b882fe210df229da7573 (diff)
downloadlinux-6e3f53ab5bd3092e195b290802208a39261fdf26.tar.xz
usb: renesas_usbhs: add usbhsf_dma_init_pdev() function
To add support for requesting DT DMA in the future, this patch adds usbhsf_dma_init_pdev() function. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/renesas_usbhs')
-rw-r--r--drivers/usb/renesas_usbhs/fifo.c12
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index f46271ce1b15..48e31b94313d 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -1054,10 +1054,8 @@ static void usbhsf_dma_quit(struct usbhs_priv *priv, struct usbhs_fifo *fifo)
fifo->rx_chan = NULL;
}
-static void usbhsf_dma_init(struct usbhs_priv *priv,
- struct usbhs_fifo *fifo)
+static void usbhsf_dma_init_pdev(struct usbhs_fifo *fifo)
{
- struct device *dev = usbhs_priv_to_dev(priv);
dma_cap_mask_t mask;
dma_cap_zero(mask);
@@ -1069,6 +1067,14 @@ static void usbhsf_dma_init(struct usbhs_priv *priv,
dma_cap_set(DMA_SLAVE, mask);
fifo->rx_chan = dma_request_channel(mask, usbhsf_dma_filter,
&fifo->rx_slave);
+}
+
+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 (fifo->tx_chan || fifo->rx_chan)
dev_dbg(dev, "enable DMAEngine (%s%s%s)\n",