diff options
Diffstat (limited to 'target/linux/imx6/patches-4.9/210-disable-uart-dma.patch')
| -rw-r--r-- | target/linux/imx6/patches-4.9/210-disable-uart-dma.patch | 23 |
1 files changed, 0 insertions, 23 deletions
diff --git a/target/linux/imx6/patches-4.9/210-disable-uart-dma.patch b/target/linux/imx6/patches-4.9/210-disable-uart-dma.patch deleted file mode 100644 index 6abbb93301..0000000000 --- a/target/linux/imx6/patches-4.9/210-disable-uart-dma.patch +++ /dev/null @@ -1,23 +0,0 @@ -Based on following upstream patch by Tim Harvey (Gateworks): - -https://github.com/Gateworks/openwrt/commit/80a01b6582f94c4547f39d3a25e0a1e9b6eb9877 - -TX complete DMA messages are getting missed. -This is also currently an issue in mainline. -For now we will disable DMA in serial/imx.c. - -This resolves an issue encountered with RS485 transmit. - ---- a/drivers/tty/serial/imx.c -+++ b/drivers/tty/serial/imx.c -@@ -1268,10 +1268,6 @@ static int imx_startup(struct uart_port - - writel(temp & ~UCR4_DREN, sport->port.membase + UCR4); - -- /* Can we enable the DMA support? */ -- if (!uart_console(port) && !sport->dma_is_inited) -- imx_uart_dma_init(sport); -- - spin_lock_irqsave(&sport->port.lock, flags); - /* Reset fifo's and state machines */ - i = 100; |