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Groups > linux.kernel > #1219895
| From | Yakir Yang <ykk@rock-chips.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir |
| Date | 2015-09-07 04:30 +0200 |
| Message-ID | <q5UlY-wp-3@gated-at.bofh.it> (permalink) |
| References | (2 earlier) <q4r2F-4Ip-13@gated-at.bofh.it> <q4vpE-2GW-7@gated-at.bofh.it> <q4Nmy-31s-7@gated-at.bofh.it> <q5D1L-YF-7@gated-at.bofh.it> <q5StQ-6dW-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Hi Krzysztof,
在 09/07/2015 08:22 AM, Krzysztof Kozlowski 写道:
> On 06.09.2015 16:49, Yakir Yang wrote:
>> Hi Krzysztof,
>>
>> 在 09/04/2015 08:41 AM, Krzysztof Kozlowski 写道:
>>> On 03.09.2015 14:30, Yakir Yang wrote:
>>>> Hi Krzysztof,
>>>>
>>>> 在 09/03/2015 08:58 AM, Krzysztof Kozlowski 写道:
>>>>> On 01.09.2015 14:49, Yakir Yang wrote:
>>>>>> Split the dp core driver from exynos directory to bridge
>>>>>> directory, and rename the core driver to analogix_dp_*,
>>>>>> leave the platform code to analogix_dp-exynos.
>>>>>>
>>>>>> Signed-off-by: Yakir Yang <ykk@rock-chips.com>
>>>>>> ---
>>>>>> Changes in v4:
>>>>>> - Take Rob suggest, update "analogix,hpd-gpios" to "hpd-gpios" DT
>>>>>> propery.
>>>>>> - Take Jingoo suggest, rename "analogix_dp-exynos.c" file name to
>>>>>> "exynos_dp.c"
>>>>>> - Take Archit suggest, create a separate folder for analogix code in
>>>>>> bridge/
>>>>>>
>>>>>> Changes in v3:
>>>>>> - Take Thierry Reding suggest, move exynos's video_timing code
>>>>>> to analogix_dp-exynos platform driver, add get_modes method
>>>>>> to struct analogix_dp_plat_data.
>>>>>> - Take Heiko suggest, rename some "samsung*" dts propery to
>>>>>> "analogix*".
>>>>>>
>>>>>> Changes in v2:
>>>>>> - Take Jingoo Han suggest, remove new copyright
>>>>>> - Fix compiled failed dut to analogix_dp_device misspell
>> [.....]
>>
>>>>>> -static int exynos_dp_bridge_attach(struct drm_bridge *bridge)
>>>>>> +static int analogix_dp_bridge_attach(struct drm_bridge *bridge)
>>>>>> {
>>>>>> - struct exynos_dp_device *dp = bridge->driver_private;
>>>>>> - struct drm_encoder *encoder = &dp->encoder;
>>>>>> + struct analogix_dp_device *dp = bridge->driver_private;
>>>>>> + struct drm_encoder *encoder = dp->encoder;
>>>>>> struct drm_connector *connector = &dp->connector;
>>>>>> int ret;
>>>>>> - /* Pre-empt DP connector creation if there's a bridge */
>>>>>> - if (dp->ptn_bridge) {
>>>>>> - ret = exynos_drm_attach_lcd_bridge(dp, encoder);
>>>>>> - if (!ret)
>>>>>> - return 0;
>>>>>> + if (!bridge->encoder) {
>>>>>> + DRM_ERROR("Parent encoder object not found");
>>>>>> + return -ENODEV;
>>>>>> }
>>>>>> + encoder->bridge = bridge;
>>>>>> +
>>>>>> connector->polled = DRM_CONNECTOR_POLL_HPD;
>>>>>> ret = drm_connector_init(dp->drm_dev, connector,
>>>>>> - &exynos_dp_connector_funcs,
>>>>>> + &analogix_dp_connector_funcs,
>>>>>> DRM_MODE_CONNECTOR_eDP);
>>>>>> if (ret) {
>>>>>> DRM_ERROR("Failed to initialize connector with drm\n");
>>>>>> return ret;
>>>>>> }
>>>>>> - drm_connector_helper_add(connector,
>>>>>> &exynos_dp_connector_helper_funcs);
>>>>>> + drm_connector_helper_add(connector,
>>>>>> + &analogix_dp_connector_helper_funcs);
>>>>>> drm_connector_register(connector);
>>>>>> drm_mode_connector_attach_encoder(connector, encoder);
>>>>>> - if (dp->panel)
>>>>>> - ret = drm_panel_attach(dp->panel, &dp->connector);
>>>>>> + if (dp->plat_data && dp->plat_data->panel) {
>>>>>> + ret = drm_panel_attach(dp->plat_data->panel, &dp->connector);
>>>>>> + if (ret) {
>>>>>> + DRM_ERROR("Failed to attach panel\n");
>>>>>> + return ret;
>>>>>> + }
>>>>>> + }
>>>>>> +
>>>>>> + /*
>>>>>> + * This should be the end of attach function, caused
>>>>>> + * we should ensure dp bridge could attach first.
>>>>>> + */
>>>>>> + if (dp->plat_data && dp->plat_data->attach) {
>>>>>> + ret = dp->plat_data->attach(dp->plat_data, bridge);
>>>>>> + if (ret) {
>>>>>> + DRM_ERROR("Failed at platform attch func\n");
>>>>> Two new error paths appeared here and above. Don't you have to
>>>>> cleanup something? I don't know, just wondering...
>>>> Hmm... I think both panel & platform_attch need ERROR remind when
>>>> it failed. But if it still need clean, I though it should clean the
>>>> platform attch
>>>> error,
>>>> this is not relate to DRM directly, just analogix driver logic, so
>>>> code would like,
>>>>
>>>> - if (dp->panel)
>>>> - ret = drm_panel_attach(dp->panel, &dp->connector);
>>>> + if (dp->plat_data && dp->plat_data->panel) {
>>>> + ret = drm_panel_attach(dp->plat_data->panel, &dp->connector);
>>>> + if (ret) {
>>>> + DRM_ERROR("Failed to attach panel\n");
>>>> + return ret;
>>>> + }
>>>> + }
>>>>
>>>> + /*
>>>> + * This should be the end of attach function, caused
>>>> + * we should ensure dp bridge could attach first.
>>>> + */
>>>> + if (dp->plat_data && dp->plat_data->attach) {
>>>> + ret = dp->plat_data->attach(dp->plat_data, bridge);
>>>>
>>>> return ret;
>>> I am lost... the code looks the same. What did you change?
>> I just remove the DRM_ERROR after dp->plat_data->attach(),
>> maybe I should paste the change that rebase on this patch,
>> here are they,
>>
>> /*
>> * This should be the end of attach function, caused
>> * we should ensure dp bridge could attach first.
>> */
>> - if (dp->plat_data && dp->plat_data->attach) {
>> + if (dp->plat_data && dp->plat_data->attach)
>> ret = dp->plat_data->attach(dp->plat_data, bridge);
>> - if (ret) {
>> - DRM_ERROR("Failed at platform attch func\n");
>> - return ret;
>> - }
>> - }
>>
>> - return 0;
>> + return ret;
>>
>>
>> If this haven't meet your comment, I maybe start to think that
>> your comment "Two new error paths appeared here and above"
>> indicated that those two function is the same.
>> "dp->plat_data->attach(dp->plat_data, bridge); "
>> "drm_panel_attach(dp->plat_data->panel, &dp->connector); "
> I wasn't talking about error message but rather about possible need of
> clean up in error path. Previously there was only drm_panel_attach().
> Now you have two of them (drm_panel_attach() and
> dp->plat_data->attach()). If the second fails don't you have to clean up
> before exit? I don't know, just asking.
Oh... Sorry about missing your words. Yes,
drm_panel_detach(dp->plat_data->panel)
was missed in this error path.
Thanks,
- Yakir
>
> Best regards,
> Krzysztof
>
>
>
>
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[PATCH v4 0/16] Add Analogix Core Display Port Driver Yakir Yang <ykk@rock-chips.com> - 2015-09-01 07:50 +0200
[PATCH v4 01/16] drm: exynos/dp: fix code style Yakir Yang <ykk@rock-chips.com> - 2015-09-01 07:50 +0200
Re: [PATCH v4 01/16] drm: exynos/dp: fix code style Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-09-03 02:30 +0200
Re: [PATCH v4 01/16] drm: exynos/dp: fix code style Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-09-03 07:10 +0200
Re: [PATCH v4 01/16] drm: exynos/dp: fix code style Yakir Yang <ykk@rock-chips.com> - 2015-09-03 07:40 +0200
Re: [PATCH v4 01/16] drm: exynos/dp: fix code style Joe Perches <joe@perches.com> - 2015-09-03 08:00 +0200
Re: [PATCH v4 01/16] drm: exynos/dp: fix code style Yakir Yang <ykk@rock-chips.com> - 2015-09-06 03:40 +0200
Re: [PATCH v4 01/16] drm: exynos/dp: fix code style Yakir Yang <ykk@rock-chips.com> - 2015-09-03 07:10 +0200
[PATCH v4 04/16] drm: bridge: analogix/dp: remove duplicate configuration of link rate and link count Yakir Yang <ykk@rock-chips.com> - 2015-09-01 08:00 +0200
[PATCH v4 05/16] drm: bridge: analogix/dp: dynamic parse sync_pol & interlace & colorimetry Yakir Yang <ykk@rock-chips.com> - 2015-09-01 08:00 +0200
Re: [PATCH v4 05/16] drm: bridge: analogix/dp: dynamic parse sync_pol & interlace & colorimetry Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-09-03 10:10 +0200
Re: [PATCH v4 05/16] drm: bridge: analogix/dp: dynamic parse sync_pol & interlace & colorimetry Yakir Yang <ykk@rock-chips.com> - 2015-09-06 04:10 +0200
[PATCH v4 11/16] drm: bridge: analogix/dp: add platform device type support Yakir Yang <ykk@rock-chips.com> - 2015-09-01 08:10 +0200
Re: [PATCH v4 11/16] drm: bridge: analogix/dp: add platform device type support Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-09-04 02:40 +0200
Re: [PATCH v4 11/16] drm: bridge: analogix/dp: add platform device type support Yakir Yang <ykk@rock-chips.com> - 2015-09-06 06:10 +0200
Re: [PATCH v4 11/16] drm: bridge: analogix/dp: add platform device type support Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-09-07 02:00 +0200
Re: [PATCH v4 11/16] drm: bridge: analogix/dp: add platform device type support Yakir Yang <ykk@rock-chips.com> - 2015-09-07 03:50 +0200
[PATCH v4 08/16] drm: rockchip/dp: add rockchip platform dp driver Yakir Yang <ykk@rock-chips.com> - 2015-09-01 08:10 +0200
Re: [PATCH v4 08/16] drm: rockchip/dp: add rockchip platform dp driver Heiko Stuebner <heiko@sntech.de> - 2015-09-01 16:30 +0200
Re: [PATCH v4 08/16] drm: rockchip/dp: add rockchip platform dp driver Yakir Yang <ykk@rock-chips.com> - 2015-09-01 16:50 +0200
Re: [PATCH v4 08/16] drm: rockchip/dp: add rockchip platform dp driver Heiko Stuebner <heiko@sntech.de> - 2015-09-01 23:10 +0200
Re: [PATCH v4 08/16] drm: rockchip/dp: add rockchip platform dp driver Yakir Yang <ykk@rock-chips.com> - 2015-09-02 04:00 +0200
[PATCH v4 06/16] Documentation: drm/bridge: add document for analogix_dp Yakir Yang <ykk@rock-chips.com> - 2015-09-01 08:10 +0200
[PATCH v4 09/16] drm: rockchip: add bpc and color mode setting Yakir Yang <ykk@rock-chips.com> - 2015-09-01 08:10 +0200
Re: [PATCH v4 09/16] drm: rockchip: add bpc and color mode setting Heiko Stuebner <heiko@sntech.de> - 2015-09-01 23:10 +0200
Re: [PATCH v4 09/16] drm: rockchip: add bpc and color mode setting Yakir Yang <ykk@rock-chips.com> - 2015-09-02 04:10 +0200
Re: [PATCH v4 09/16] drm: rockchip: add bpc and color mode setting Thierry Reding <treding@nvidia.com> - 2015-09-02 10:40 +0200
Re: [PATCH v4 09/16] drm: rockchip: add bpc and color mode setting Yakir Yang <ykk@rock-chips.com> - 2015-09-02 12:10 +0200
Re: [PATCH v4 09/16] drm: rockchip: add bpc and color mode setting Thierry Reding <treding@nvidia.com> - 2015-09-03 10:40 +0200
Re: [PATCH v4 09/16] drm: rockchip: add bpc and color mode setting Yakir Yang <ykk@rock-chips.com> - 2015-09-06 04:10 +0200
[PATCH v4 10/16] phy: Add driver for rockchip Display Port PHY Yakir Yang <ykk@rock-chips.com> - 2015-09-01 08:10 +0200
Re: [PATCH v4 10/16] phy: Add driver for rockchip Display Port PHY Heiko Stuebner <heiko@sntech.de> - 2015-09-01 19:00 +0200
Re: [PATCH v4 10/16] phy: Add driver for rockchip Display Port PHY Heiko Stuebner <heiko@sntech.de> - 2015-09-01 23:00 +0200
Re: [PATCH v4 10/16] phy: Add driver for rockchip Display Port PHY Yakir Yang <ykk@rock-chips.com> - 2015-09-02 03:50 +0200
Re: [PATCH v4 10/16] phy: Add driver for rockchip Display Port PHY Yakir Yang <ykk@rock-chips.com> - 2015-09-02 03:10 +0200
Re: [PATCH v4 10/16] phy: Add driver for rockchip Display Port PHY Rob Herring <robherring2@gmail.com> - 2015-09-02 15:30 +0200
Re: [PATCH v4 10/16] phy: Add driver for rockchip Display Port PHY Yakir Yang <ykk@rock-chips.com> - 2015-09-03 05:30 +0200
Re: [PATCH v4 10/16] phy: Add driver for rockchip Display Port PHY Heiko Stuebner <heiko@sntech.de> - 2015-09-03 16:00 +0200
[PATCH v4 07/16] ARM: dts: exynos/dp: remove some properties that deprecated by analogix_dp driver Yakir Yang <ykk@rock-chips.com> - 2015-09-01 08:10 +0200
Re: [PATCH v4 07/16] ARM: dts: exynos/dp: remove some properties that deprecated by analogix_dp driver Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-09-03 02:10 +0200
[PATCH v4 15/16] drm: bridge: analogix/dp: move hpd detect to connector detect function Yakir Yang <ykk@rock-chips.com> - 2015-09-01 08:20 +0200
[PATCH v4 12/16] drm: bridge: analogix/dp: add some rk3288 special registers setting Yakir Yang <ykk@rock-chips.com> - 2015-09-01 08:20 +0200
[PATCH v4 14/16] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Yakir Yang <ykk@rock-chips.com> - 2015-09-01 08:20 +0200
Re: [PATCH v4 14/16] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Rob Herring <robherring2@gmail.com> - 2015-09-02 22:20 +0200
Re: [PATCH v4 14/16] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Yakir Yang <ykk@rock-chips.com> - 2015-09-03 06:30 +0200
Re: [PATCH v4 14/16] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Thierry Reding <treding@nvidia.com> - 2015-09-03 11:10 +0200
Re: [PATCH v4 14/16] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-09-04 12:30 +0200
Re: [PATCH v4 14/16] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Thierry Reding <treding@nvidia.com> - 2015-09-07 11:10 +0200
Re: [PATCH v4 14/16] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Thierry Reding <treding@nvidia.com> - 2015-09-07 10:30 +0200
Re: [PATCH v4 14/16] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Rob Herring <robherring2@gmail.com> - 2015-09-04 23:50 +0200
Re: [PATCH v4 14/16] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Yakir Yang <ykk@rock-chips.com> - 2015-09-06 10:30 +0200
Re: [PATCH v4 14/16] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Thierry Reding <treding@nvidia.com> - 2015-09-07 10:40 +0200
Re: [PATCH v4 14/16] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Thierry Reding <treding@nvidia.com> - 2015-09-03 10:50 +0200
Re: [PATCH v4 14/16] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Rob Herring <robherring2@gmail.com> - 2015-09-04 00:00 +0200
Re: [PATCH v4 14/16] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Thierry Reding <treding@nvidia.com> - 2015-09-04 12:10 +0200
[PATCH v4 13/16] drm: bridge: analogix/dp: add max link rate and lane count limit for RK3288 Yakir Yang <ykk@rock-chips.com> - 2015-09-01 08:20 +0200
[PATCH v4 16/16] drm: bridge: analogix/dp: add edid modes parse in get_modes method Yakir Yang <ykk@rock-chips.com> - 2015-09-01 08:30 +0200
Re: [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir Heiko Stuebner <heiko@sntech.de> - 2015-09-01 22:50 +0200
Re: [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir Yakir Yang <ykk@rock-chips.com> - 2015-09-02 03:50 +0200
Re: [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir Rob Herring <robherring2@gmail.com> - 2015-09-04 23:10 +0200
Re: [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir Heiko Stuebner <heiko@sntech.de> - 2015-09-04 23:40 +0200
Re: [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir Thierry Reding <treding@nvidia.com> - 2015-09-07 10:20 +0200
Re: [PATCH v4 0/16] Add Analogix Core Display Port Driver Heiko Stuebner <heiko@sntech.de> - 2015-09-02 00:20 +0200
Re: [PATCH v4 0/16] Add Analogix Core Display Port Driver Yakir Yang <ykk@rock-chips.com> - 2015-09-02 04:20 +0200
Re: [PATCH v4 0/16] Add Analogix Core Display Port Driver Thierry Reding <treding@nvidia.com> - 2015-09-21 11:20 +0200
Re: [PATCH v4 0/16] Add Analogix Core Display Port Driver Yakir Yang <ykk@rock-chips.com> - 2015-09-21 12:30 +0200
Re: [PATCH v4 0/16] Add Analogix Core Display Port Driver Thierry Reding <treding@nvidia.com> - 2015-09-21 13:30 +0200
Re: [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir Emil Velikov <emil.l.velikov@gmail.com> - 2015-09-02 17:00 +0200
Re: [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir Yakir Yang <ykk@rock-chips.com> - 2015-09-03 06:00 +0200
Re: [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-09-03 03:00 +0200
Re: [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir Yakir Yang <ykk@rock-chips.com> - 2015-09-03 07:40 +0200
Re: [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-09-04 02:50 +0200
Re: [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir Yakir Yang <ykk@rock-chips.com> - 2015-09-06 10:00 +0200
Re: [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir Krzysztof Kozlowski <k.kozlowski@samsung.com> - 2015-09-07 02:30 +0200
Re: [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir Yakir Yang <ykk@rock-chips.com> - 2015-09-07 04:30 +0200
[PATCH v5 0/17] Add Analogix Core Display Port Driver Yakir Yang <ykk@rock-chips.com> - 2015-09-22 09:30 +0200
[PATCH v5 01/17] drm: exynos: dp: convert to drm bridge mode Yakir Yang <ykk@rock-chips.com> - 2015-09-22 09:30 +0200
[PATCH v5 03/17] drm: bridge: analogix/dp: fix some obvious code style Yakir Yang <ykk@rock-chips.com> - 2015-09-22 09:40 +0200
[PATCH v5 06/17] Documentation: drm/bridge: add document for analogix_dp Yakir Yang <ykk@rock-chips.com> - 2015-09-22 09:50 +0200
[PATCH v5 07/17] ARM: dts: exynos/dp: remove some properties that deprecated by analogix_dp driver Yakir Yang <ykk@rock-chips.com> - 2015-09-22 09:50 +0200
[PATCH v5 09/17] Documentation: drm/bridge: add document for analogix_dp Yakir Yang <ykk@rock-chips.com> - 2015-09-22 09:50 +0200
[PATCH v5 04/17] drm: bridge: analogix/dp: remove duplicate configuration of link rate and link count Yakir Yang <ykk@rock-chips.com> - 2015-09-22 09:50 +0200
[PATCH v5 08/17] drm: rockchip: dp: add rockchip platform dp driver Yakir Yang <ykk@rock-chips.com> - 2015-09-22 09:50 +0200
[PATCH v5 11/17] Documentation: phy: add document for rockchip dp phy Yakir Yang <ykk@rock-chips.com> - 2015-09-22 10:00 +0200
[PATCH v5 10/17] phy: Add driver for rockchip Display Port PHY Yakir Yang <ykk@rock-chips.com> - 2015-09-22 10:00 +0200
[PATCH v5 12/17] drm: rockchip: vop: add bpc and color mode setting Yakir Yang <ykk@rock-chips.com> - 2015-09-22 10:00 +0200
[PATCH v5 13/17] drm: bridge: analogix/dp: add some rk3288 special registers setting Yakir Yang <ykk@rock-chips.com> - 2015-09-22 10:10 +0200
[PATCH v5 15/17] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Yakir Yang <ykk@rock-chips.com> - 2015-09-22 10:10 +0200
[PATCH v5 05/17] drm: bridge: analogix/dp: dynamic parse sync_pol & interlace & dynamic_range Yakir Yang <ykk@rock-chips.com> - 2015-09-22 10:10 +0200
[PATCH v5 14/17] drm: bridge: analogix/dp: add max link rate and lane count limit for RK3288 Yakir Yang <ykk@rock-chips.com> - 2015-09-22 10:10 +0200
[PATCH v5 16/17] drm: bridge: analogix/dp: move hpd detect to connector detect function Yakir Yang <ykk@rock-chips.com> - 2015-09-22 10:30 +0200
[PATCH v5 17/17] drm: bridge: analogix/dp: add edid modes parse in get_modes method Yakir Yang <ykk@rock-chips.com> - 2015-09-22 10:40 +0200
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