Hello Krzysztof, On 06/01/2016 04:06 PM, Krzysztof Kozlowski wrote: > On Wed, Jun 1, 2016 at 9:57 PM, Kevin Hilman <[email protected]> wrote: >> Hi Krzysztof, >> >> On Sat, May 28, 2016 at 2:54 AM, Krzysztof Kozlowski <[email protected]> wrote: >>> Just like other Exynos5 family SoCs, this one has four UARTs. Configure >>> clocks for UART3 and enable it. >>> >>> Signed-off-by: Krzysztof Kozlowski <[email protected]> >>> Reviewed-by: Javier Martinez Canillas <[email protected]> >> >> 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
