diff options
| author | NeilBrown <neilb@suse.de> | 2012-07-30 00:30:26 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-16 19:10:43 (GMT) |
| commit | 9574f36fb801035f6ab0fbb1b53ce2c12c17d100 (patch) | |
| tree | feb4794a8c1a54b5fb0e3024b836e93f2a39f36e /arch | |
| parent | a92098a1cb7ec08c86d1b97d1831d8edaf26b1a2 (diff) | |
| download | linux-fsl-qoriq-9574f36fb801035f6ab0fbb1b53ce2c12c17d100.tar.xz | |
OMAP/serial: Add support for driving a GPIO as DTR.
OMAP hardware doesn't provide a phyisical DTR line, but
some configurations may need a DTR line which tracks whether
the device is open or not.
So allow a gpio to be configured as the DTR line.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-omap2/serial.c | 3 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/omap-serial.h | 7 |
2 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index c1b93c7..25d53b2 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -304,6 +304,9 @@ void __init omap_serial_init_port(struct omap_board_data *bdata, omap_up.dma_rx_timeout = info->dma_rx_timeout; omap_up.dma_rx_poll_rate = info->dma_rx_poll_rate; omap_up.autosuspend_timeout = info->autosuspend_timeout; + omap_up.DTR_gpio = info->DTR_gpio; + omap_up.DTR_inverted = info->DTR_inverted; + omap_up.DTR_present = info->DTR_present; pdata = &omap_up; pdata_size = sizeof(struct omap_uart_port_info); diff --git a/arch/arm/plat-omap/include/plat/omap-serial.h b/arch/arm/plat-omap/include/plat/omap-serial.h index 1a52725..52d3de4 100644 --- a/arch/arm/plat-omap/include/plat/omap-serial.h +++ b/arch/arm/plat-omap/include/plat/omap-serial.h @@ -69,6 +69,9 @@ struct omap_uart_port_info { unsigned int dma_rx_timeout; unsigned int autosuspend_timeout; unsigned int dma_rx_poll_rate; + int DTR_gpio; + int DTR_inverted; + int DTR_present; int (*get_context_loss_count)(struct device *); void (*set_forceidle)(struct platform_device *); @@ -131,6 +134,10 @@ struct uart_omap_port { u32 errata; u8 wakeups_enabled; + int DTR_gpio; + int DTR_inverted; + int DTR_active; + struct pm_qos_request pm_qos_request; u32 latency; u32 calc_latency; |