diff options
| author | Inderpal Singh <inderpal.singh@linaro.org> | 2011-12-15 15:13:22 +0800 |
|---|---|---|
| committer | Andy Green <andy.green@linaro.org> | 2011-12-26 22:33:45 +0800 |
| commit | 906e94fe76eae55c5be5ebb572c5b6ba20a1e67c (patch) | |
| tree | 46237344c188a99a494c6db76887a8e47d9ece01 | |
| parent | 3803983732e79aa659ee9c9de486e0cbbc48e7f3 (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 f96f37b5fec..27047daedd2 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -987,6 +987,9 @@ 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); } |