diff options
Diffstat (limited to 'drivers/usb/renesas_usbhs/fifo.c')
-rw-r--r-- | drivers/usb/renesas_usbhs/fifo.c | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c index f46271ce1b15..d891bff39d66 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) | |||
1054 | fifo->rx_chan = NULL; | 1054 | fifo->rx_chan = NULL; |
1055 | } | 1055 | } |
1056 | 1056 | ||
1057 | static void usbhsf_dma_init(struct usbhs_priv *priv, | 1057 | static void usbhsf_dma_init_pdev(struct usbhs_fifo *fifo) |
1058 | struct usbhs_fifo *fifo) | ||
1059 | { | 1058 | { |
1060 | struct device *dev = usbhs_priv_to_dev(priv); | ||
1061 | dma_cap_mask_t mask; | 1059 | dma_cap_mask_t mask; |
1062 | 1060 | ||
1063 | dma_cap_zero(mask); | 1061 | dma_cap_zero(mask); |
@@ -1069,6 +1067,27 @@ static void usbhsf_dma_init(struct usbhs_priv *priv, | |||
1069 | dma_cap_set(DMA_SLAVE, mask); | 1067 | dma_cap_set(DMA_SLAVE, mask); |
1070 | fifo->rx_chan = dma_request_channel(mask, usbhsf_dma_filter, | 1068 | fifo->rx_chan = dma_request_channel(mask, usbhsf_dma_filter, |
1071 | &fifo->rx_slave); | 1069 | &fifo->rx_slave); |
1070 | } | ||
1071 | |||
1072 | static void usbhsf_dma_init_dt(struct device *dev, struct usbhs_fifo *fifo) | ||
1073 | { | ||
1074 | fifo->tx_chan = dma_request_slave_channel_reason(dev, "tx"); | ||
1075 | if (IS_ERR(fifo->tx_chan)) | ||
1076 | fifo->tx_chan = NULL; | ||
1077 | fifo->rx_chan = dma_request_slave_channel_reason(dev, "rx"); | ||
1078 | if (IS_ERR(fifo->rx_chan)) | ||
1079 | fifo->rx_chan = NULL; | ||
1080 | } | ||
1081 | |||
1082 | static void usbhsf_dma_init(struct usbhs_priv *priv, | ||
1083 | struct usbhs_fifo *fifo) | ||
1084 | { | ||
1085 | struct device *dev = usbhs_priv_to_dev(priv); | ||
1086 | |||
1087 | if (dev->of_node) | ||
1088 | usbhsf_dma_init_dt(dev, fifo); | ||
1089 | else | ||
1090 | usbhsf_dma_init_pdev(fifo); | ||
1072 | 1091 | ||
1073 | if (fifo->tx_chan || fifo->rx_chan) | 1092 | if (fifo->tx_chan || fifo->rx_chan) |
1074 | dev_dbg(dev, "enable DMAEngine (%s%s%s)\n", | 1093 | dev_dbg(dev, "enable DMAEngine (%s%s%s)\n", |