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Revert "serial: pl011: use DMA RX polling by default" 

This reverts commit 17438217a6 on request
of Linus Walleij:
	Greg can you please drop or revert
	commit 17438217a6
	"serial: pl011: use DMA RX polling by default"
	from the TTY tree until this has been sorted out?

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman 2013-12-17 09:33:18 -08:00
parent 4d0ed18277
commit 8f898bfd04
2 changed files with 2 additions and 1 deletions
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2
drivers/tty/serial/amba-pl011.c
View File

@ -325,7 +325,7 @@ static void pl011_dma_probe_initcall(struct device *dev, struct uart_amba_port *
dmaengine_slave_config(chan, &rx_conf);
uap->dmarx.chan = chan;
if (plat) {
if (plat && plat->dma_rx_poll_enable) {
/* Set poll rate if specified. */
if (plat->dma_rx_poll_rate) {
uap->dmarx.auto_poll_rate = false;

1
include/linux/amba/serial.h
View File

@ -203,6 +203,7 @@ struct amba_pl011_data {
bool (*dma_filter)(struct dma_chan *chan, void *filter_param);
void *dma_rx_param;
void *dma_tx_param;
bool dma_rx_poll_enable;
unsigned int dma_rx_poll_rate;
unsigned int dma_rx_poll_timeout;
void (*init) (void);