diff options
| author | Inderpal Singh <inderpal.singh@linaro.org> | 2011-11-22 12:15:38 +0530 |
|---|---|---|
| committer | Tushar Behera <tushar.behera@linaro.org> | 2012-07-20 14:29:40 +0530 |
| commit | 22d53cfb090f67de4d6da4570396105c6d41a682 (patch) | |
| tree | 436d3d9638645af6e8e7811d12bde6d21ee09373 | |
| parent | 148a920f183b0b8489e965dd7a9a4fa2438a63f8 (diff) | |
ARM: EXYNOS: Fix for suspend/resume hang
While resuming from suspend, the system hangs due to some spurious
uart interrupts. This patch temporarily masks uart interrupts during
reset_port to solve this problem.
Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org>
| -rw-r--r-- | drivers/tty/serial/samsung.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index d8b0aee3563..88c27cf390a 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -988,6 +988,9 @@ static void s3c24xx_serial_resetport(struct uart_port *port, wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH); wr_regl(port, S3C2410_UFCON, cfg->ufcon); + wr_regl(port, S3C64XX_UINTM, 0xf); + wr_regl(port, S3C64XX_UINTP, 0xf); + /* some delay is required after fifo reset */ udelay(1); } |