Messages in this thread Patch in this message | | | Date | Wed, 1 Jun 2016 12:57:52 -0700 | Subject | Re: [PATCH v5 13/22] ARM: dts: exynos: Enable UART3 on Exynos5410 | From | Kevin Hilman <> |
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Hi Krzysztof,
On Sat, May 28, 2016 at 2:54 AM, Krzysztof Kozlowski <krzk@kernel.org> wrote: > 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 <javier@osg.samsung.com>
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.
Kevin
[1] 594127ada6df ARM: dts: exynos: Enable UART3 on Exynos5410 [2] https://kernelci.org/boot/exynos5410-odroidxu/job/next/kernel/next-20160601/defconfig/multi_v7_defconfig/lab/lab-baylibre-seattle/?_id=574e97c759b5140f4141c8ef [3] diff --git a/arch/arm/boot/dts/exynos5410.dtsi b/arch/arm/boot/dts/exynos5410.dtsi index a937d9bdad90..f4baf1d1e864 100644 --- a/arch/arm/boot/dts/exynos5410.dtsi +++ b/arch/arm/boot/dts/exynos5410.dtsi @@ -238,6 +238,7 @@ };
&serial_3 { + status = "disabled"; clocks = <&clock CLK_UART3>, <&clock CLK_SCLK_UART3>; clock-names = "uart", "clk_uart_baud0"; };
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