Hello Krzysztof,

On 06/01/2016 04:06 PM, Krzysztof Kozlowski wrote:

On Wed, Jun 1, 2016 at 9:57 PM, Kevin Hilman [off-list ref] wrote:

quoted

Hi Krzysztof,

On Sat, May 28, 2016 at 2:54 AM, Krzysztof Kozlowski [off-list ref] wrote:

quoted

Just like other Exynos5 family SoCs, this one has four UARTs. Configure
clocks for UART3 and enable it.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Reviewed-by: Javier Martinez Canillas <redacted>

This patch landed in linux-next[1] and kernelci.org found a boot
regression on the exynos5410-odroidxu[2], where it looks like it's
faulting in clk_prepare().  Bisecting pointed to this patch.  I added
"status = disabled" back into the DTS on top of next-20160601[3] and
verified my odroid-XU to be booting fine again.

Hi,

Thanks for report. Indeed the patch brings up to the light an issue in
serial driver. Fixed here:
https://lkml.org/lkml/2016/5/31/570

I left the commit in my tree as it is correct (strictly speaking).
Sorry for any trouble it makes.

Kevin pointed me to this issue over IRC and I was able to reproduce it in
my Peach Pi by removing the UART3 clocks from the Exynos5420 clock driver.

Your patch indeed fixes the issue, I'll add a Reviewed-by on that thread.
 

Best regards,
Krzysztof

Best regards,
-- 
Javier Martinez Canillas
Open Source Group
Samsung Research America