From: k.kozlowski@samsung.com (Krzysztof Kozlowski)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir
Date: Mon, 07 Sep 2015 09:22:35 +0900 [thread overview]
Message-ID: <55ECD8CB.7060408@samsung.com> (raw)
In-Reply-To: <55EBF024.3070304@rock-chips.com>
On 06.09.2015 16:49, Yakir Yang wrote:
> Hi Krzysztof,
>
> ? 09/04/2015 08:41 AM, Krzysztof Kozlowski ??:
>> On 03.09.2015 14:30, Yakir Yang wrote:
>>> Hi Krzysztof,
>>>
>>> ? 09/03/2015 08:58 AM, Krzysztof Kozlowski ??:
>>>> 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.
Best regards,
Krzysztof
next prev parent reply other threads:[~2015-09-07 0:22 UTC|newest]
Thread overview: 133+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-01 5:46 [PATCH v4 0/16] Add Analogix Core Display Port Driver Yakir Yang
2015-09-01 5:46 ` [PATCH v4 01/16] drm: exynos/dp: fix code style Yakir Yang
2015-09-03 0:21 ` Krzysztof Kozlowski
2015-09-03 5:04 ` Yakir Yang
2015-09-03 5:08 ` Krzysztof Kozlowski
2015-09-03 5:33 ` Yakir Yang
2015-09-03 5:57 ` Joe Perches
2015-09-06 1:33 ` Yakir Yang
2015-09-01 5:49 ` [PATCH v4 02/16] drm: exynos/dp: convert to drm bridge mode Yakir Yang
2015-09-01 5:52 ` [PATCH v4 04/16] drm: bridge: analogix/dp: remove duplicate configuration of link rate and link count Yakir Yang
2015-09-01 5:55 ` [PATCH v4 05/16] drm: bridge: analogix/dp: dynamic parse sync_pol & interlace & colorimetry Yakir Yang
2015-09-03 8:04 ` Krzysztof Kozlowski
2015-09-06 2:00 ` Yakir Yang
2015-09-01 5:58 ` [PATCH v4 06/16] Documentation: drm/bridge: add document for analogix_dp Yakir Yang
2015-09-01 6:01 ` [PATCH v4 07/16] ARM: dts: exynos/dp: remove some properties that deprecated by analogix_dp driver Yakir Yang
2015-09-03 0:01 ` Krzysztof Kozlowski
2015-09-01 6:01 ` [PATCH v4 08/16] drm: rockchip/dp: add rockchip platform dp driver Yakir Yang
2015-09-01 14:24 ` Heiko Stuebner
2015-09-01 21:00 ` Heiko Stuebner
2015-09-01 6:01 ` [PATCH v4 09/16] drm: rockchip: add bpc and color mode setting Yakir Yang
2015-09-01 21:00 ` Heiko Stuebner
2015-09-01 6:04 ` [PATCH v4 10/16] phy: Add driver for rockchip Display Port PHY Yakir Yang
2015-09-01 16:51 ` Heiko Stuebner
2015-09-01 20:58 ` Heiko Stuebner
2015-09-02 13:27 ` Rob Herring
2015-09-03 3:25 ` Yakir Yang
2015-09-03 13:52 ` Heiko Stuebner
2015-09-06 4:09 ` Yakir Yang
2015-09-01 6:07 ` [PATCH v4 11/16] drm: bridge: analogix/dp: add platform device type support Yakir Yang
2015-09-04 0:36 ` Krzysztof Kozlowski
2015-09-06 4:07 ` Yakir Yang
2015-09-06 23:55 ` Krzysztof Kozlowski
2015-09-01 6:09 ` [PATCH v4 12/16] drm: bridge: analogix/dp: add some rk3288 special registers setting Yakir Yang
2015-09-01 6:11 ` [PATCH v4 13/16] drm: bridge: analogix/dp: add max link rate and lane count limit for RK3288 Yakir Yang
2015-09-01 6:14 ` [PATCH v4 14/16] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Yakir Yang
2015-09-02 20:17 ` Rob Herring
2015-09-03 4:27 ` Yakir Yang
2015-09-03 9:04 ` Thierry Reding
2015-09-04 10:20 ` Russell King - ARM Linux
2015-09-07 9:01 ` Thierry Reding
[not found] ` <55EBBA0C.1030100@rock-chips.com>
2015-09-07 8:20 ` Thierry Reding
2015-09-04 21:46 ` Rob Herring
2015-09-06 8:20 ` Yakir Yang
2015-09-07 8:39 ` Thierry Reding
2015-09-03 8:47 ` Thierry Reding
2015-09-03 21:55 ` Rob Herring
2015-09-04 10:01 ` Thierry Reding
2015-09-01 6:17 ` [PATCH v4 15/16] drm: bridge: analogix/dp: move hpd detect to connector detect function Yakir Yang
2015-09-01 6:20 ` [PATCH v4 16/16] drm: bridge: analogix/dp: add edid modes parse in get_modes method Yakir Yang
2015-09-01 21:47 ` [PATCH v4 0/16] Add Analogix Core Display Port Driver Heiko Stuebner
[not found] ` <1441086598-24995-1-git-send-email-ykk@rock-chips.com>
2015-09-01 20:46 ` [PATCH v4 03/16] drm: bridge: analogix/dp: split exynos dp driver to bridge dir Heiko Stuebner
2015-09-04 21:06 ` Rob Herring
2015-09-04 21:29 ` Heiko Stuebner
2015-09-07 8:11 ` Thierry Reding
2015-09-02 14:50 ` Emil Velikov
2015-09-03 3:55 ` Yakir Yang
2015-09-03 0:58 ` Krzysztof Kozlowski
2015-09-03 5:30 ` Yakir Yang
2015-09-04 0:41 ` Krzysztof Kozlowski
2015-09-06 7:49 ` Yakir Yang
2015-09-07 0:22 ` Krzysztof Kozlowski [this message]
2015-09-22 7:20 ` [PATCH v5 0/17] Add Analogix Core Display Port Driver Yakir Yang
2015-09-22 7:26 ` [PATCH v5 01/17] drm: exynos: dp: convert to drm bridge mode Yakir Yang
2015-09-22 7:34 ` [PATCH v5 03/17] drm: bridge: analogix/dp: fix some obvious code style Yakir Yang
2015-09-30 5:22 ` Krzysztof Kozlowski
2015-09-30 6:52 ` Yakir Yang
2015-09-22 7:35 ` [PATCH v5 04/17] drm: bridge: analogix/dp: remove duplicate configuration of link rate and link count Yakir Yang
2015-09-22 7:37 ` [PATCH v5 05/17] drm: bridge: analogix/dp: dynamic parse sync_pol & interlace & dynamic_range Yakir Yang
2015-09-30 5:32 ` Krzysztof Kozlowski
[not found] ` <560B8CF1.7050102@rock-chips.com>
2015-09-30 7:34 ` Krzysztof Kozlowski
[not found] ` <560B9B33.2060409@rock-chips.com>
2015-09-30 8:26 ` Krzysztof Kozlowski
2015-09-30 9:39 ` Yakir Yang
2015-09-22 7:40 ` [PATCH v5 06/17] Documentation: drm/bridge: add document for analogix_dp Yakir Yang
2015-09-22 7:43 ` [PATCH v5 07/17] ARM: dts: exynos/dp: remove some properties that deprecated by analogix_dp driver Yakir Yang
2015-09-30 5:39 ` Krzysztof Kozlowski
2015-09-30 7:20 ` Yakir Yang
2015-09-22 7:45 ` [PATCH v5 08/17] drm: rockchip: dp: add rockchip platform dp driver Yakir Yang
2015-09-22 7:48 ` [PATCH v5 09/17] Documentation: drm/bridge: add document for analogix_dp Yakir Yang
2015-09-22 7:48 ` [PATCH v5 10/17] phy: Add driver for rockchip Display Port PHY Yakir Yang
2015-09-22 7:51 ` [PATCH v5 11/17] Documentation: phy: add document for rockchip dp phy Yakir Yang
2015-09-22 7:55 ` [PATCH v5 12/17] drm: rockchip: vop: add bpc and color mode setting Yakir Yang
2015-09-22 7:57 ` [PATCH v5 13/17] drm: bridge: analogix/dp: add some rk3288 special registers setting Yakir Yang
2015-09-22 8:00 ` [PATCH v5 14/17] drm: bridge: analogix/dp: add max link rate and lane count limit for RK3288 Yakir Yang
2015-09-22 8:02 ` [PATCH v5 15/17] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Yakir Yang
2015-09-22 8:05 ` [PATCH v5 16/17] drm: bridge: analogix/dp: move hpd detect to connector detect function Yakir Yang
2015-09-22 8:07 ` [PATCH v5 17/17] drm: bridge: analogix/dp: add edid modes parse in get_modes method Yakir Yang
[not found] ` <1442906963-2883-1-git-send-email-ykk@rock-chips.com>
2015-09-30 5:17 ` [PATCH v5 02/17] drm: bridge: analogix/dp: split exynos dp driver to bridge directory Krzysztof Kozlowski
2015-09-30 6:48 ` Yakir Yang
2015-10-07 6:25 ` [PATCH v5 0/17] Add Analogix Core Display Port Driver Yakir Yang
2015-10-07 8:46 ` Javier Martinez Canillas
2015-10-07 9:02 ` Yakir Yang
2015-10-07 9:26 ` Javier Martinez Canillas
[not found] ` <5614FC6B.4080702@rock-chips.com>
2015-10-07 11:25 ` Javier Martinez Canillas
2015-10-08 0:40 ` Yakir Yang
2015-10-10 14:31 ` Yakir Yang
2015-10-13 9:21 ` Javier Martinez Canillas
2015-10-13 13:50 ` Yakir Yang
2015-10-14 8:18 ` Javier Martinez Canillas
2015-10-10 15:35 ` [PATCH v6 " Yakir Yang
2015-10-10 15:38 ` [PATCH v6 01/17] drm: exynos: dp: convert to drm bridge mode Yakir Yang
2015-10-10 15:41 ` [PATCH v6 03/17] drm: bridge: analogix/dp: fix some obvious code style Yakir Yang
2015-10-10 15:43 ` [PATCH v6 04/17] drm: bridge: analogix/dp: remove duplicate configuration of link rate and link count Yakir Yang
2015-10-10 15:46 ` [PATCH v6 05/17] drm: bridge: analogix/dp: dynamic parse sync_pol & interlace & dynamic_range Yakir Yang
2015-10-12 0:37 ` Yakir Yang
2015-10-12 0:49 ` Krzysztof Kozlowski
2015-10-12 2:43 ` Yakir Yang
2015-10-12 3:51 ` Krzysztof Kozlowski
2015-10-12 4:09 ` Yakir Yang
2015-10-12 4:16 ` Krzysztof Kozlowski
2015-10-10 15:49 ` [PATCH v6 06/17] Documentation: drm/bridge: add document for analogix_dp Yakir Yang
2015-10-10 15:49 ` [PATCH v6 07/17] ARM: dts: exynos/dp: remove some properties that deprecated by analogix_dp driver Yakir Yang
2015-10-10 15:51 ` [PATCH v6 08/17] drm: rockchip: dp: add rockchip platform dp driver Yakir Yang
2015-10-10 15:53 ` [PATCH v6 09/17] Documentation: drm/bridge: add document for analogix_dp Yakir Yang
2015-10-10 15:55 ` [PATCH v6 10/17] phy: Add driver for rockchip Display Port PHY Yakir Yang
2015-10-12 15:02 ` Kishon Vijay Abraham I
2015-10-12 16:18 ` Heiko Stübner
2015-10-13 1:20 ` Yakir Yang
2015-10-10 15:58 ` [PATCH v6 11/17] Documentation: phy: add document for rockchip dp phy Yakir Yang
2015-10-12 22:28 ` Kishon Vijay Abraham I
2015-10-13 1:21 ` Yakir Yang
2015-10-10 16:00 ` [PATCH v6 12/17] drm: rockchip: vop: add bpc and color mode setting Yakir Yang
2015-10-10 16:05 ` [PATCH v6 13/17] drm: bridge: analogix/dp: add some rk3288 special registers setting Yakir Yang
2015-10-10 16:05 ` [PATCH v6 14/17] drm: bridge: analogix/dp: add max link rate and lane count limit for RK3288 Yakir Yang
2015-10-10 16:05 ` [PATCH v6 15/17] drm: bridge: analogix/dp: try force hpd after plug in lookup failed Yakir Yang
2015-10-10 16:05 ` [PATCH v6 16/17] drm: bridge: analogix/dp: move hpd detect to connector detect function Yakir Yang
2015-10-10 16:06 ` [PATCH v6 17/17] drm: bridge: analogix/dp: add edid modes parse in get_modes method Yakir Yang
2015-10-12 4:29 ` [PATCH v7 05/17] drm: bridge: analogix/dp: dynamic parse sync_pol & interlace & dynamic_range Yakir Yang
2015-10-12 6:54 ` Krzysztof Kozlowski
2015-10-12 7:20 ` Yakir Yang
2015-10-19 10:40 ` [PATCH v6 0/17] Add Analogix Core Display Port Driver Javier Martinez Canillas
2015-10-20 2:10 ` Yakir Yang
2015-10-20 9:48 ` Javier Martinez Canillas
2015-10-20 11:40 ` Yakir Yang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=55ECD8CB.7060408@samsung.com \
--to=k.kozlowski@samsung.com \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).