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>

diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index f46271ce1b15afdb211e6951b2adeb3a3a328e8e..48e31b94313d3531e0ea9ded20e942a6c9d5f930 100644 (file)
--- 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",