Skip to contentSkip to conversation

Samsung fixes-2 for v4.0

GIT PULL Kukjin Kim 5 participants 13 messages Mar 2, 2015 – Mar 14, 2015 Arm Samsung Exynos

lore
Share & tools
lore

Kukjin Kim

author
#0 lore raw

Hi,

Please pull Samsung tmu and hdmi regression fixes for v4.0 and I know this is quite big for fixes but I couldn't handle this series for previous merge window because of dependency with driver side...sorry for that and please pull so that we could support them in v4.0 on exynos platforms.

Thanks,
Kukjin

The following changes since commit c517d838eb7d07bbe9507871fab3931deccff539:

Linux 4.0-rc1 (2015-02-22 18:21:14 -0800)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung.git
tags/samsung-fixes-dt

for you to fetch changes up to 2d2c9a8d0a4f90e298315d2f4a282d8bd5d45e5c:

ARM: dts: add display power domain for exynos5250 (2015-02-27 05:29:32
+0900)

----------------------------------------------------------------
Samsung tmu and hdmi regression fixes for v4.0

- The thermal management unit and HDMI (drm mixer driver) related reworks have been merged in v4.0 merge window. So if this DT changes are missed for v4.0, we regressions in v4.0 release for exynos platforms such as exynos5250, exynos5420, exynos4 SoCs.

- Note since there was a dependency with driver side, this cannot be sent to upstream during preivous merge window and now it has been resolved.

----------------------------------------------------------------
Andrzej Hajda (1):
ARM: dts: add display power domain for exynos5250

Lukasz Majewski (9):
ARM: dts: Enable TMU for exynos4210-trats
ARM: dts: Add LDO10 for TMU for exynos4412-odroid-common
ARM: dts: Enable TMU for exynos4412-odriod-common
ARM: dts: Adding CPU cooling binding for Exynos SoCs
ARM: dts: add TMU default definitions for exynos4412
ARM: dts: default trip points definition for exynos5420
ARM: dts: define default thermal-zones for exynos4
ARM: dts: Trip points and sensor configuration data for exynos5440
ARM: dts: Provide dt bindings identical for Exynos TMU

Marek Szyprowski (6):
dt-bindings: document a note about power domain subdomains
ARM: EXYNOS: add support for sub-power domains
ARM: dts: add hdmi related nodes for exynos4 SoCs
ARM: dts: add dependency between TV and LCD0 power domains for exynos4
ARM: dts: enable hdmi support for exynos4412-odroid-common
ARM: dts: add 'hdmi' clock to mixer nodes for exynos5250 and
exynos5420

Tomasz Stanislawski (1):
ARM: dts: enable hdmi support for exynos4210-universal_c210

 .../bindings/arm/exynos/power_domain.txt           |  2 +
 .../devicetree/bindings/power/power_domain.txt     | 29 ++++++++++
 arch/arm/boot/dts/exynos3250.dtsi                  |  2 +
 arch/arm/boot/dts/exynos4-cpu-thermal.dtsi         | 52 ++++++++++++++++++
 arch/arm/boot/dts/exynos4.dtsi                     | 45 +++++++++++++++
 arch/arm/boot/dts/exynos4210-trats.dts             | 19 +++++++
 arch/arm/boot/dts/exynos4210-universal_c210.dts    | 57 +++++++++++++++++++
 arch/arm/boot/dts/exynos4210.dtsi                  | 38 ++++++++++++-
 arch/arm/boot/dts/exynos4212.dtsi                  |  5 +-
 arch/arm/boot/dts/exynos4412-odroid-common.dtsi    | 64
++++++++++++++++++++++
 arch/arm/boot/dts/exynos4412-tmu-sensor-conf.dtsi  | 24 ++++++++
 arch/arm/boot/dts/exynos4412-trats2.dts            | 15 +++++
 arch/arm/boot/dts/exynos4412.dtsi                  |  5 +-
 arch/arm/boot/dts/exynos4x12.dtsi                  | 12 ++++
 arch/arm/boot/dts/exynos5250.dtsi                  | 44 +++++++++++++--
 arch/arm/boot/dts/exynos5420-trip-points.dtsi      | 35 ++++++++++++
 arch/arm/boot/dts/exynos5420.dtsi                  | 33 ++++++++++-
 arch/arm/boot/dts/exynos5440-tmu-sensor-conf.dtsi  | 24 ++++++++
 arch/arm/boot/dts/exynos5440-trip-points.dtsi      | 25 +++++++++
 arch/arm/boot/dts/exynos5440.dtsi                  | 18 ++++++
 arch/arm/mach-exynos/pm_domains.c                  | 28 ++++++++++
 21 files changed, 565 insertions(+), 11 deletions(-)
 create mode 100644 arch/arm/boot/dts/exynos4-cpu-thermal.dtsi
 create mode 100644 arch/arm/boot/dts/exynos4412-tmu-sensor-conf.dtsi
 create mode 100644 arch/arm/boot/dts/exynos5420-trip-points.dtsi
 create mode 100644 arch/arm/boot/dts/exynos5440-tmu-sensor-conf.dtsi
 create mode 100644 arch/arm/boot/dts/exynos5440-trip-points.dtsi
#1 lore raw
Quoted 5 lines · On Tuesday 03 March 2015 04:00:14 Kukjin Kim wrote:

Please pull Samsung tmu and hdmi regression fixes for v4.0 and I know this is quite big for fixes but I couldn't handle this series for previous merge window because of dependency with driver side...sorry for that and please pull so that we could support them in v4.0 on exynos platforms.

What kind of dependency do you have there? It really should not be necessary to wait for driver changes, unless you do an incompatible DT binding change, which you should avoid.

I've pulled it into fixes, but won't forward it until I hear a good explanation.

Arnd

#2 lore raw
Quoted 7 lines · On Wednesday 04 March 2015 21:04:40 Arnd Bergmann wrote:
Quoted 5 lines · On Tuesday 03 March 2015 04:00:14 Kukjin Kim wrote:

Please pull Samsung tmu and hdmi regression fixes for v4.0 and I know this is quite big for fixes but I couldn't handle this series for previous merge window because of dependency with driver side...sorry for that and please pull so that we could support them in v4.0 on exynos platforms.

Quoted 6 lines

What kind of dependency do you have there? It really should not be necessary to wait for driver changes, unless you do an incompatible DT binding change, which you should avoid.

I've pulled it into fixes, but won't forward it until I hear a good explanation.

Even with both fixes-1 and fixes-2 applied, we still get boot failures on Exynos:

http://arm-soc.lixom.net/bootlogs/arm-soc/v4.0-rc2-104-g2ee4716/

Any idea what is going on?

Arnd

#3 lore raw

Hello Arnd,

Quoted 15 lines · Arnd Bergmann
Quoted 7 lines · On Wednesday 04 March 2015 21:04:40 Arnd Bergmann wrote:
Quoted 5 lines · On Tuesday 03 March 2015 04:00:14 Kukjin Kim wrote:

Please pull Samsung tmu and hdmi regression fixes for v4.0 and I know this is quite big for fixes but I couldn't handle this series for previous merge window because of dependency with driver side...sorry for that and please pull so that we could support them in v4.0 on exynos platforms.

Quoted 6 lines

What kind of dependency do you have there? It really should not be necessary to wait for driver changes, unless you do an incompatible DT binding change, which you should avoid.

I've pulled it into fixes, but won't forward it until I hear a good explanation.

Quoted 7 lines

Even with both fixes-1 and fixes-2 applied, we still get boot failures on Exynos:

http://arm-soc.lixom.net/bootlogs/arm-soc/v4.0-rc2-104-g2ee4716/

Any idea what is going on?

Yes, the problem is the Exynos DRM driver which has a lot of issues. It's broken if CONFIG_DRM_EXYNOS_IOMMU is enabled which defaults to yes after commit 8dcc14f82f06 ("drm/exynos: IOMMU support should not be selectable by user").

I posted a patch to disable IOMMU support on Exynos to avoid these boot failures and also mentioned to Kukjin that it should be a fix for 4.0 [0]. But even with IOMMU disabled, the Exynos DRM is broken in some boards [1] so we may have to disable that driver until everything gets sorted out and is stable again.

Quoted 2 lines

Arnd
--

Best regards,
Javier

[0]: https://lkml.org/lkml/2015/3/3/60
[1]: https://lkml.org/lkml/2015/3/4/1070

author
#4 lore raw
Quoted 3 lines · Javier Martinez Canillas

Hello Arnd,

Hi,

Quoted 29 lines · Arnd Bergmann
Quoted 15 lines · On Wednesday 04 March 2015 21:04:40 Arnd Bergmann wrote:
Quoted 7 lines · On Tuesday 03 March 2015 04:00:14 Kukjin Kim wrote:
Quoted 5 lines

Please pull Samsung tmu and hdmi regression fixes for v4.0 and I know this is quite big for fixes but I couldn't handle this series for previous merge window because of dependency with driver side...sorry for that and please pull so that we could support them in v4.0 on exynos platforms.

Quoted 6 lines

What kind of dependency do you have there? It really should not be necessary to wait for driver changes, unless you do an incompatible DT binding change, which you should avoid.

I've pulled it into fixes, but won't forward it until I hear a good explanation.

Quoted 7 lines

Even with both fixes-1 and fixes-2 applied, we still get boot failures on Exynos:

http://arm-soc.lixom.net/bootlogs/arm-soc/v4.0-rc2-104-g2ee4716/

Any idea what is going on?

Yes, the problem is the Exynos DRM driver which has a lot of issues. It's broken if CONFIG_DRM_EXYNOS_IOMMU is enabled which defaults to yes after commit 8dcc14f82f06 ("drm/exynos: IOMMU support should not be selectable by user").

Quoted 6 lines

I posted a patch to disable IOMMU support on Exynos to avoid these boot failures and also mentioned to Kukjin that it should be a fix for 4.0 [0]. But even with IOMMU disabled, the Exynos DRM is broken in some boards [1] so we may have to disable that driver until everything gets sorted out and is stable again.

Yes, the fix is in my tree and it will be sent to upstream via arm-soc soon.

Thanks,
Kukjin

#5 lore raw

Hello Kukjin,

Quoted 35 lines · Kukjin Kim
Quoted 3 lines · Javier Martinez Canillas

Hello Arnd,

Hi,

Quoted 29 lines · Arnd Bergmann
Quoted 15 lines · On Wednesday 04 March 2015 21:04:40 Arnd Bergmann wrote:
Quoted 7 lines · On Tuesday 03 March 2015 04:00:14 Kukjin Kim wrote:
Quoted 5 lines

Please pull Samsung tmu and hdmi regression fixes for v4.0 and I know this is quite big for fixes but I couldn't handle this series for previous merge window because of dependency with driver side...sorry for that and please pull so that we could support them in v4.0 on exynos platforms.

Quoted 6 lines

What kind of dependency do you have there? It really should not be necessary to wait for driver changes, unless you do an incompatible DT binding change, which you should avoid.

I've pulled it into fixes, but won't forward it until I hear a good explanation.

Quoted 7 lines

Even with both fixes-1 and fixes-2 applied, we still get boot failures on Exynos:

http://arm-soc.lixom.net/bootlogs/arm-soc/v4.0-rc2-104-g2ee4716/

Any idea what is going on?

Yes, the problem is the Exynos DRM driver which has a lot of issues. It's broken if CONFIG_DRM_EXYNOS_IOMMU is enabled which defaults to yes after commit 8dcc14f82f06 ("drm/exynos: IOMMU support should not be selectable by user").

Quoted 8 lines
Quoted 6 lines

I posted a patch to disable IOMMU support on Exynos to avoid these boot failures and also mentioned to Kukjin that it should be a fix for 4.0 [0]. But even with IOMMU disabled, the Exynos DRM is broken in some boards [1] so we may have to disable that driver until everything gets sorted out and is stable again.

Yes, the fix is in my tree and it will be sent to upstream via arm-soc soon.

Thanks a lot for your help. You meant the patch to disable IOMMU support right? While being there could you please also disable the DRM driver as discussed since is unlikely that the Exynos DRM maintainers would be able to sort out all the issues in time for 4.0.

Quoted 3 lines

Thanks,
Kukjin

Best regards,
Javier

#6 lore raw
In reply to Kukjin Kim

Hello Kukjin,

Quoted 6 lines · Kukjin Kim
Quoted 6 lines

Yes, the problem is the Exynos DRM driver which has a lot of issues. It's broken if CONFIG_DRM_EXYNOS_IOMMU is enabled which defaults to yes after commit 8dcc14f82f06 ("drm/exynos: IOMMU support should not be selectable by user").

Quoted 8 lines
Quoted 6 lines

I posted a patch to disable IOMMU support on Exynos to avoid these boot failures and also mentioned to Kukjin that it should be a fix for 4.0 [0]. But even with IOMMU disabled, the Exynos DRM is broken in some boards [1] so we may have to disable that driver until everything gets sorted out and is stable again.

Yes, the fix is in my tree and it will be sent to upstream via arm-soc soon.

Sorry for pestering you but I see that the patch to disable EXYNOS_IOMMU is still not in Linus' master and we are almost in 4.0-rc4 now.

A patch to the Exynos DRM driver to check for IOMMU and fail gracefully has landed in 4.0-rc so now at least the machines boot but with IOMMU enabled display is broken in the Exynos5 boards.

Quoted 2 lines

Thanks,
Kukjin

Best regards,
Javier

author
#7 lore raw
In reply to Arnd Bergmann
Quoted 1 line · Arnd Bergmann

+ Eduardo

Hi Arnd,

Quoted 11 lines · On Tuesday 03 March 2015 04:00:14 Kukjin Kim wrote:
Quoted 5 lines

Please pull Samsung tmu and hdmi regression fixes for v4.0 and I know this is quite big for fixes but I couldn't handle this series for previous merge window because of dependency with driver side...sorry for that and please pull so that we could support them in v4.0 on exynos platforms.

What kind of dependency do you have there? It really should not be necessary to wait for driver changes, unless you do an incompatible DT binding change, which you should avoid.

For TMU patches, I've asked Eduardo to provide topic branch for 'include/dt-bindings/thermal/thermal_exynos.h' has been added via thermal tree because if I can't apply the patch in Samsung tree for arm-soc, kernel build breakage will be happened. But I couldn't get Eduardo's topic branch.

http://www.spinics.net/lists/linux-samsung-soc/msg41877.html

For HDMI patches, I thought the DT changes have a dependency with "drm/exynos:
add support for 'hdmi' clock" so waited for its applying then in drm tree. But I couldn't send it to arm-soc after that...

http://www.spinics.net/lists/linux-samsung-soc/msg42173.html

I asked about the situation (late DT changes?) when I sent a pull-request, then I couldn't get a access my kernel.org because of biz. trip to China :(

http://www.spinics.net/lists/linux-samsung-soc/msg42235.html

Quoted 3 lines

I've pulled it into fixes, but won't forward it until I hear a good explanation.

As you know, basically I tried to make a clear branch for pull-request but in that case, I couldn't find a solution. Sorry for the inconvenience.

I hope v4.0 can support them properly.

Thanks,
Kukjin

#8 lore raw
Quoted 13 lines · Kukjin Kim
Quoted 1 line · Arnd Bergmann

+ Eduardo

Hi Arnd,

Quoted 7 lines · On Tuesday 03 March 2015 04:00:14 Kukjin Kim wrote:
Quoted 5 lines

Please pull Samsung tmu and hdmi regression fixes for v4.0 and I know this is quite big for fixes but I couldn't handle this series for previous merge window because of dependency with driver side...sorry for that and please pull so that we could support them in v4.0 on exynos platforms.

Quoted 8 lines
Quoted 4 lines

What kind of dependency do you have there? It really should not be necessary to wait for driver changes, unless you do an incompatible DT binding change, which you should avoid.

For TMU patches, I've asked Eduardo to provide topic branch for 'include/dt-bindings/thermal/thermal_exynos.h' has been added via thermal tree because if I can't apply the patch in Samsung tree for arm-soc, kernel build breakage will be happened. But I couldn't get Eduardo's topic branch.

Specifically, the developer, while migrating the driver to support DT and OF thermal, decided to create a header with constants. The header is used by DT files and the driver code. The header was the dependency.

BR,

Eduardo Valentin

Quoted 20 lines

http://www.spinics.net/lists/linux-samsung-soc/msg41877.html

For HDMI patches, I thought the DT changes have a dependency with "drm/exynos:
add support for 'hdmi' clock" so waited for its applying then in drm tree. But I couldn't send it to arm-soc after that...

http://www.spinics.net/lists/linux-samsung-soc/msg42173.html

I asked about the situation (late DT changes?) when I sent a pull-request, then I couldn't get a access my kernel.org because of biz. trip to China :(

http://www.spinics.net/lists/linux-samsung-soc/msg42235.html

Quoted 3 lines

I've pulled it into fixes, but won't forward it until I hear a good explanation.

Quoted 8 lines

As you know, basically I tried to make a clear branch for pull-request but in that case, I couldn't find a solution. Sorry for the inconvenience.

I hope v4.0 can support them properly.

Thanks,
Kukjin

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 473 bytes
Desc: Digital signature
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20150305/b70427fe/attachment.sig>

#9 lore raw

Hi Eduardo,

Quoted 25 lines · Kukjin Kim
Quoted 17 lines
Quoted 1 line · Arnd Bergmann

+ Eduardo

Hi Arnd,

Quoted 11 lines · On Tuesday 03 March 2015 04:00:14 Kukjin Kim wrote:
Quoted 5 lines

Please pull Samsung tmu and hdmi regression fixes for v4.0 and I know this is quite big for fixes but I couldn't handle this series for previous merge window because of dependency with driver side...sorry for that and please pull so that we could support them in v4.0 on exynos platforms.

What kind of dependency do you have there? It really should not be necessary to wait for driver changes, unless you do an incompatible DT binding change, which you should avoid.

Quoted 5 lines

For TMU patches, I've asked Eduardo to provide topic branch for 'include/dt-bindings/thermal/thermal_exynos.h' has been added via thermal tree because if I can't apply the patch in Samsung tree for arm-soc, kernel build breakage will be happened. But I couldn't get Eduardo's topic branch.

Quoted 4 lines

Specifically, the developer, while migrating the driver to support DT and OF thermal, decided to create a header with constants. The header is used by DT files and the driver code. The header was the dependency.

Just my 2 cents :-).

The above situation is the justification for adding the whole patch set to one repository when all ACKs are collected for it.

Quoted 37 lines

BR,

Eduardo Valentin

Quoted 31 lines

http://www.spinics.net/lists/linux-samsung-soc/msg41877.html

For HDMI patches, I thought the DT changes have a dependency with "drm/exynos: add support for 'hdmi' clock" so waited for its applying then in drm tree. But I couldn't send it to arm-soc after that...

http://www.spinics.net/lists/linux-samsung-soc/msg42173.html

I asked about the situation (late DT changes?) when I sent a pull-request, then I couldn't get a access my kernel.org because of biz. trip to China :(

http://www.spinics.net/lists/linux-samsung-soc/msg42235.html

Quoted 3 lines

I've pulled it into fixes, but won't forward it until I hear a good explanation.

As you know, basically I tried to make a clear branch for pull-request but in that case, I couldn't find a solution. Sorry for the inconvenience.

I hope v4.0 can support them properly.

Thanks,
Kukjin

Signature · 5 lines
Best regards,

Lukasz Majewski

Samsung R&D Institute Poland (SRPOL) | Linux Platform Group
author
#10 lore raw
Quoted 33 lines · Lukasz Majewski

Hi Eduardo,

Quoted 25 lines · Kukjin Kim
Quoted 17 lines
Quoted 1 line · Arnd Bergmann

+ Eduardo

Hi Arnd,

Quoted 11 lines · On Tuesday 03 March 2015 04:00:14 Kukjin Kim wrote:
Quoted 5 lines

Please pull Samsung tmu and hdmi regression fixes for v4.0 and I know this is quite big for fixes but I couldn't handle this series for previous merge window because of dependency with driver side...sorry for that and please pull so that we could support them in v4.0 on exynos platforms.

What kind of dependency do you have there? It really should not be necessary to wait for driver changes, unless you do an incompatible DT binding change, which you should avoid.

Quoted 5 lines

For TMU patches, I've asked Eduardo to provide topic branch for 'include/dt-bindings/thermal/thermal_exynos.h' has been added via thermal tree because if I can't apply the patch in Samsung tree for arm-soc, kernel build breakage will be happened. But I couldn't get Eduardo's topic branch.

Quoted 4 lines

Specifically, the developer, while migrating the driver to support DT and OF thermal, decided to create a header with constants. The header is used by DT files and the driver code. The header was the dependency.

Quoted 5 lines

Just my 2 cents :-).

The above situation is the justification for adding the whole patch set to one repository when all ACKs are collected for it.

I don't think so, even your series can be upstreamed though, other useless merge conflicts would be happened so we decided all of DT should be handled in arch side not driver side. So please don't argue about that.

- Kukjin

#11 lore raw

Hi Kukjin,

Quoted 37 lines
Quoted 36 lines · Lukasz Majewski

Hi Eduardo,

Quoted 26 lines · Kukjin Kim
Quoted 18 lines
Quoted 1 line · Arnd Bergmann

+ Eduardo

Hi Arnd,

Quoted 8 lines · On Tuesday 03 March 2015 04:00:14 Kukjin Kim wrote:
Quoted 6 lines

Please pull Samsung tmu and hdmi regression fixes for v4.0 and I know this is quite big for fixes but I couldn't handle this series for previous merge window because of dependency with driver side...sorry for that and please pull so that we could support them in v4.0 on exynos platforms.

Quoted 4 lines

What kind of dependency do you have there? It really should not be necessary to wait for driver changes, unless you do an incompatible DT binding change, which you should avoid.

Quoted 5 lines

For TMU patches, I've asked Eduardo to provide topic branch for 'include/dt-bindings/thermal/thermal_exynos.h' has been added via thermal tree because if I can't apply the patch in Samsung tree for arm-soc, kernel build breakage will be happened. But I couldn't get Eduardo's topic branch.

Quoted 4 lines

Specifically, the developer, while migrating the driver to support DT and OF thermal, decided to create a header with constants. The header is used by DT files and the driver code. The header was the dependency.

Just my 2 cents :-).

Quoted 7 lines
Quoted 3 lines

The above situation is the justification for adding the whole patch set to one repository when all ACKs are collected for it.

I don't think so, even your series can be upstreamed though, other useless merge conflicts would be happened so we decided all of DT should be handled in arch side not driver side. So please don't argue about that.

Ok, I will not :-)

Quoted 3 lines

- Kukjin

Signature · 5 lines
Best regards,

Lukasz Majewski

Samsung R&D Institute Poland (SRPOL) | Linux Platform Group
author
#12 lore raw
In reply to Eduardo Valentin
Quoted 1 line · Eduardo Valentin

Hi Eduardo,

Quoted 24 lines · Kukjin Kim
Quoted 13 lines
Quoted 1 line · Arnd Bergmann

+ Eduardo

Hi Arnd,

Quoted 7 lines · On Tuesday 03 March 2015 04:00:14 Kukjin Kim wrote:
Quoted 5 lines

Please pull Samsung tmu and hdmi regression fixes for v4.0 and I know this is quite big for fixes but I couldn't handle this series for previous merge window because of dependency with driver side...sorry for that and please pull so that we could support them in v4.0 on exynos platforms.

Quoted 8 lines
Quoted 4 lines

What kind of dependency do you have there? It really should not be necessary to wait for driver changes, unless you do an incompatible DT binding change, which you should avoid.

For TMU patches, I've asked Eduardo to provide topic branch for 'include/dt-bindings/thermal/thermal_exynos.h' has been added via thermal tree because if I can't apply the patch in Samsung tree for arm-soc, kernel build breakage will be happened. But I couldn't get Eduardo's topic branch.

Quoted 4 lines

Specifically, the developer, while migrating the driver to support DT and OF thermal, decided to create a header with constants. The header is used by DT files and the driver code. The header was the dependency.

Yes, sometimes we can't avoid the situation so it can be a kind of dependency...

Arnd,
Do you have any updates on this?

Thanks,
Kukjin

Quoted 32 lines

BR,

Eduardo Valentin

Quoted 27 lines

http://www.spinics.net/lists/linux-samsung-soc/msg41877.html

For HDMI patches, I thought the DT changes have a dependency with "drm/exynos:
add support for 'hdmi' clock" so waited for its applying then in drm tree. But I couldn't send it to arm-soc after that...

http://www.spinics.net/lists/linux-samsung-soc/msg42173.html

I asked about the situation (late DT changes?) when I sent a pull-request, then I couldn't get a access my kernel.org because of biz. trip to China :(

http://www.spinics.net/lists/linux-samsung-soc/msg42235.html

Quoted 3 lines

I've pulled it into fixes, but won't forward it until I hear a good explanation.

As you know, basically I tried to make a clear branch for pull-request but in that case, I couldn't find a solution. Sorry for the inconvenience.

I hope v4.0 can support them properly.

Thanks,
Kukjin