linux-kernel - Re: linux-next: build failures after merge of the drm tree

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Date:	Sat, 9 Aug 2014 08:27:51 -0700
From:	Olof Johansson <olof@...om.net>
To:	YoungJun Cho <yj44.cho@...sung.com>
Cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	Dave Airlie <airlied@...ux.ie>,
	Kukjin Kim <kgene.kim@...sung.com>,
	Arnd Bergmann <arnd@...db.de>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"linux-next@...r.kernel.org" <linux-next@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Thomas Wood <thomas.wood@...el.com>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Inki Dae <daeinki@...il.com>,
	Rahul Sharma <rahul.sharma@...sung.com>
Subject: Re: linux-next: build failures after merge of the drm tree

On Fri, Aug 8, 2014 at 2:40 PM, Olof Johansson <olof@...om.net> wrote:
> On Mon, Aug 4, 2014 at 11:02 PM, YoungJun Cho <yj44.cho@...sung.com> wrote:
>> Hi Stephen and Dave,
>>
>>
>> On 08/05/2014 12:09 PM, Stephen Rothwell wrote:
>>>
>>> Hi Dave,
>>>
>>> After merging the drm tree, today's linux-next build (x86_64
>>> allmodconfig) failed like this:
>>>
>>> ERROR: "drm_sysfs_connector_remove" [drivers/gpu/drm/i2c/tda998x.ko]
>>> undefined!
>>> ERROR: "drm_sysfs_connector_add" [drivers/gpu/drm/i2c/tda998x.ko]
>>> undefined!
>>>
>>> Caused by commit c707c3619ca8 ("drm/i2c: tda998x: add component
>>> support") interacting with commit 34ea3d386347 ("drm: add register and
>>> unregister functions for connectors").  Maybe it should have been fixed
>>> up in the merge commit 920f946428b7 ("Merge branch 'tda998x-devel' of
>>> git://ftp.arm.linux.org.uk/~rmk/linux-cubox into drm-next")?
>>>
>>> I reverted commit c707c3619ca8 for today.
>>>
>>> But then the arm multi_v7_defconfig build produced these errors:
>>>
>>> ERROR (phandle_references): Reference to non-existent node or label
>>> "disp_pd"
>>>
>>> ERROR: Input tree has errors, aborting (use -f to force output)
>>> make[2]: *** [arch/arm/boot/dts/exynos5420-arndale-octa.dtb] Error 2
>>> make[2]: *** Waiting for unfinished jobs....
>>> ERROR (phandle_references): Reference to non-existent node or label
>>> "disp_pd"
>>>
>>> ERROR: Input tree has errors, aborting (use -f to force output)
>>> make[2]: *** [arch/arm/boot/dts/exynos5420-smdk5420.dtb] Error 2
>>> ERROR (phandle_references): Reference to non-existent node or label
>>> "disp_pd"
>>>
>>> ERROR: Input tree has errors, aborting (use -f to force output)
>>> ERROR (phandle_references): Reference to non-existent node or label
>>> "disp_pd"
>>>
>>> make[2]: *** [arch/arm/boot/dts/exynos5800-peach-pi.dtb] Error 2
>>> ERROR: Input tree has errors, aborting (use -f to force output)
>>>
>>> Caused by commit 5a8da524049c ("ARM: dts: exynos5420: add dsi node")
>>> interacting with commit d51cad7df871 ("ARM: dts: remove display power
>>> domain for exynos5420") from the arm-soc tree.
>>>
>>
>> I missed the patch "ARM: dts: remove display power domain for exynos5420" in
>> linux-samsung-soc mail thread.
>>
>> In my test without power domain property, the exynos5420 dsi master driver
>> works well.
>>
>>
>>> I applied this merge fix patch:
>>>
>>> From: Stephen Rothwell <sfr@...b.auug.org.au>
>>> Date: Tue, 5 Aug 2014 13:03:01 +1000
>>> Subject: [PATCH] ARM: dts: exynos5420: remove disp_pd
>>>
>>> per comit d51cad7df871 ("ARM: dts: remove display power
>>> domain for exynos5420").
>>>
>>> Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
>>> ---
>>>   arch/arm/boot/dts/exynos5420.dtsi | 1 -
>>>   1 file changed, 1 deletion(-)
>>>
>>> diff --git a/arch/arm/boot/dts/exynos5420.dtsi
>>> b/arch/arm/boot/dts/exynos5420.dtsi
>>> index 95ec37dff3e8..bfe056d9148c 100644
>>> --- a/arch/arm/boot/dts/exynos5420.dtsi
>>> +++ b/arch/arm/boot/dts/exynos5420.dtsi
>>> @@ -525,7 +525,6 @@
>>>                 compatible = "samsung,exynos5410-mipi-dsi";
>>>                 reg = <0x14500000 0x10000>;
>>>                 interrupts = <0 82 0>;
>>> -               samsung,power-domain = <&disp_pd>;
>>>                 phys = <&mipi_phy 1>;
>>>                 phy-names = "dsim";
>>>                 clocks = <&clock CLK_DSIM1>, <&clock CLK_SCLK_MIPI1>;
>>>
>>
>> Tested-by: YoungJun Cho <yj44.cho@...sung.com>
>
> Sigh, now Linus' tree is broken because of this because nobody picked it up.
>
> Dave, can you revert the original change, please? (5a8da524049c).
>
> DTS changes like these shouldn't go through driver trees in the first place. :(

Still no reply? I'm including the above patch in my current set of fixes.


-Olof
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