On Thu, Apr 21, 2016 at 11:58 AM, Chanwoo Choi [off-list ref] wrote:

This patch fixes the broken serial log when changing the clock source
of uart device. Before disabling the original clock source, this patch
enables the new clock source to protect the clock off state for a split second.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Marek Szyprowski <m.szyprowski@samsung.com>
---
Changes from v2:
- Add reviewd-by tag from Marek Szyprowski
- No changes about operation

Changes from v1:
- Enable the clock before changing the source by s3c24xx_serial_setsource()
- Rebase it on Linux v4.6-rc1

 drivers/tty/serial/samsung.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Fixes synchronous abort on our Exynos5433-based board. This should be
marked for cc-stable. I'll send a port for that.

BR,
Krzysztof