From: Philipp Zabel <p.zabel@pengutronix.de>
To: Peter Senna Tschudin <peter.senna@collabora.com>
Cc: robh+dt@kernel.org, mark.rutland@arm.com, shawnguo@kernel.org,
kernel@pengutronix.de, fabio.estevam@nxp.com,
linux@armlinux.org.uk, airlied@linux.ie, davem@davemloft.net,
geert@linux-m68k.org, gregkh@linuxfoundation.org,
akpm@linux-foundation.org, mchehab@kernel.org,
linux@roeck-us.net, treding@nvidia.com, architt@codeaurora.org,
ykk@rock-chips.com, andrey.gusakov@cogentembedded.com,
boris.brezillon@free-electrons.com, enric.balletbo@collabora.com,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
dri-devel@lists.freedesktop.org, Rob Herring <robh@kernel.org>,
Thierry Reding <thierry.reding@gmail.com>
Subject: Re: [PATCH V3 1/5] drm/imx-ldb: Add support to drm-bridge
Date: Mon, 01 Aug 2016 12:21:10 +0200 [thread overview]
Message-ID: <1470046870.3025.36.camel@pengutronix.de> (raw)
In-Reply-To: <5d55969a1509de751dc550d9a02bd5070455f99b.1469993472.git.peter.senna@collabora.com>
Am Sonntag, den 31.07.2016, 21:55 +0200 schrieb Peter Senna Tschudin:
> Add support to attach a drm_bridge to imx-ldb in addition to
> existing support to attach a LVDS panel.
>
> This patch does a simple code refactoring by moving code
> from for_each_child_of_node iterator to a new function named
> imx_ldb_panel_ddc(). This was necessary to allow the panel ddc
> code to run only when the imx_ldb is not attached to a bridge.
>
> Cc: Enric Balletbo i Serra <enric.balletbo@collabora.com>
> Cc: Philipp Zabel <p.zabel@pengutronix.de>
> Cc: Rob Herring <robh@kernel.org>
> Cc: Fabio Estevam <fabio.estevam@nxp.com>
> Cc: David Airlie <airlied@linux.ie>
> Cc: Thierry Reding <treding@nvidia.com>
> Cc: Thierry Reding <thierry.reding@gmail.com>
> Signed-off-by: Peter Senna Tschudin <peter.senna@collabora.com>
> ---
> Changes from V2:
> - Updated to be aplied on top of Liu Ying changes that made imx-ldb atomic.
> - Tested on next-20160729.
[...]
> @@ -469,19 +473,28 @@ static int imx_ldb_register(struct drm_device *drm,
> drm_encoder_init(drm, encoder, &imx_ldb_encoder_funcs,
> DRM_MODE_ENCODER_LVDS, NULL);
>
> - drm_connector_helper_add(&imx_ldb_ch->connector,
> - &imx_ldb_connector_helper_funcs);
> - drm_connector_init(drm, &imx_ldb_ch->connector,
> - &imx_ldb_connector_funcs, DRM_MODE_CONNECTOR_LVDS);
> -
> if (imx_ldb_ch->panel) {
> + drm_connector_helper_add(&imx_ldb_ch->connector,
> + &imx_ldb_connector_helper_funcs);
> + drm_connector_init(drm, &imx_ldb_ch->connector,
> + &imx_ldb_connector_funcs,
> + DRM_MODE_CONNECTOR_LVDS);
This is still not right. We want to add the connector whenever there is
no bridge that brings its own, not only when there is a panel. For
historical reasons, the ldb driver can also work without a panel.
> ret = drm_panel_attach(imx_ldb_ch->panel,
> - &imx_ldb_ch->connector);
> + &imx_ldb_ch->connector);
What is the purpose of this change?
> if (ret)
> return ret;
> }
>
> - drm_mode_connector_attach_encoder(&imx_ldb_ch->connector, encoder);
Where is this gone?
> + if (imx_ldb_ch->bridge) {
> + imx_ldb_ch->bridge->encoder = encoder;
> +
> + imx_ldb_ch->encoder.bridge = imx_ldb_ch->bridge;
> + ret = drm_bridge_attach(drm, imx_ldb_ch->bridge);
> + if (ret) {
> + DRM_ERROR("Failed to initialize bridge with drm\n");
> + return ret;
> + }
> + }
>
> return 0;
> }
regards
Philipp
next prev parent reply other threads:[~2016-08-01 10:22 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-30 16:39 [PATCH 0/5] Add driver for GE B850v3 LVDS/DP++ Bridge Peter Senna Tschudin
2016-05-30 16:39 ` [PATCH 1/5] drm/imx-ldb: Add support to drm-bridge Peter Senna Tschudin
2016-06-02 13:09 ` Philipp Zabel
2016-05-30 16:39 ` [PATCH 2/5] arm/dts/imx6q-b850v3: Configure IPU assignment order Peter Senna Tschudin
2016-05-30 16:49 ` Fabio Estevam
2016-06-02 12:55 ` Philipp Zabel
2016-05-30 16:39 ` [PATCH 3/5] Documentation/devicetree/bindings: Add b850v3_lvds_dp Peter Senna Tschudin
2016-06-02 12:49 ` Philipp Zabel
2016-06-02 23:19 ` Peter Senna Tschudin
2016-06-02 22:57 ` Rob Herring
2016-05-30 16:39 ` [PATCH 4/5] drm/bridge: Add driver for GE B850v3 LVDS/DP++ Bridge Peter Senna Tschudin
2016-05-31 7:48 ` Enric Balletbo Serra
2016-05-30 16:39 ` [PATCH 5/5] arm/dts/imx6q-b850v3: Use " Peter Senna Tschudin
2016-05-30 16:54 ` Fabio Estevam
2016-06-09 16:25 ` [PATCH V2 0/5] Add driver for " Peter Senna Tschudin
2016-06-09 16:25 ` [PATCH V2 1/5] drm/imx-ldb: Add support to drm-bridge Peter Senna Tschudin
2016-06-09 16:25 ` [PATCH V2 2/5] dts/imx6q-b850v3: Configure IPU assignment order Peter Senna Tschudin
2016-06-09 16:25 ` [PATCH V2 3/5] Documentation/devicetree/bindings: b850v3_lvds_dp Peter Senna Tschudin
2016-06-10 17:42 ` Rob Herring
2016-06-10 18:54 ` Javier Martinez Canillas
2016-06-09 16:25 ` [PATCH V2 4/5] drm/bridge: Add driver for GE B850v3 LVDS/DP++ Bridge Peter Senna Tschudin
2016-06-10 7:39 ` Enric Balletbo Serra
2016-06-10 9:44 ` Peter Senna Tschudin
2016-06-10 14:13 ` Daniel Vetter
2016-06-22 8:34 ` Archit Taneja
2016-06-09 16:25 ` [PATCH V2 5/5] dts/imx6q-b850v3: Use " Peter Senna Tschudin
2016-07-31 19:55 ` [PATCH V3 0/5] Add driver for " Peter Senna Tschudin
2016-07-31 19:55 ` [PATCH V3 1/5] drm/imx-ldb: Add support to drm-bridge Peter Senna Tschudin
2016-08-01 10:21 ` Philipp Zabel [this message]
2016-08-02 18:46 ` Peter Senna Tschudin
2016-07-31 19:55 ` [PATCH V3 2/5] dts/imx6q-b850v3: Configure IPU assignment order Peter Senna Tschudin
2016-08-01 8:54 ` Lucas Stach
2016-08-01 12:30 ` Peter Senna Tschudin
2016-08-02 13:13 ` Daniel Vetter
2016-07-31 19:55 ` [PATCH V3 3/5] Documentation/devicetree/bindings: b850v3_lvds_dp Peter Senna Tschudin
2016-08-01 16:59 ` Rob Herring
2016-07-31 19:55 ` [PATCH V3 4/5] drm/bridge: Add driver for GE B850v3 LVDS/DP++ Bridge Peter Senna Tschudin
2016-07-31 19:55 ` [PATCH V3 5/5] dts/imx6q-b850v3: Use " Peter Senna Tschudin
2016-08-04 22:36 ` [PATCH V4 0/4] Add driver for " Peter Senna Tschudin
2016-08-04 22:36 ` [PATCH V4 1/4] drm/imx-ldb: Add support to drm-bridge Peter Senna Tschudin
2016-08-16 15:40 ` Martyn Welch
2016-08-04 22:36 ` [PATCH V4 2/4] Documentation/devicetree/bindings: b850v3_lvds_dp Peter Senna Tschudin
2016-08-05 7:28 ` Enric Balletbo Serra
2016-08-16 15:59 ` Martyn Welch
2016-08-04 22:37 ` [PATCH V4 3/4] drm/bridge: Add driver for GE B850v3 LVDS/DP++ Bridge Peter Senna Tschudin
2016-08-05 7:38 ` Enric Balletbo Serra
2016-08-04 22:37 ` [PATCH V4 4/4] dts/imx6q-b850v3: Use " Peter Senna Tschudin
2016-08-09 16:41 ` [PATCH V5 0/4] Add driver for " Peter Senna Tschudin
2016-08-09 16:41 ` [PATCH V5 1/4] drm/imx-ldb: Add support to drm-bridge Peter Senna Tschudin
2016-08-11 9:38 ` Philipp Zabel
2016-08-09 16:41 ` [PATCH V5 2/4] Documentation/devicetree/bindings: b850v3_lvds_dp Peter Senna Tschudin
2016-09-26 8:26 ` Peter Senna Tschudin
2016-08-09 16:41 ` [PATCH V5 3/4] drm/bridge: Add driver for GE B850v3 LVDS/DP++ Bridge Peter Senna Tschudin
2016-08-16 4:15 ` Archit Taneja
2016-09-26 8:27 ` Peter Senna Tschudin
2016-09-26 8:31 ` Archit Taneja
2016-09-26 8:58 ` Peter Senna Tschudin
2016-09-26 10:28 ` Archit Taneja
2016-09-26 10:29 ` Archit Taneja
2016-09-26 11:54 ` Peter Senna Tschudin
2016-09-26 12:54 ` Archit Taneja
2016-08-09 16:41 ` [PATCH V5 4/4] dts/imx6q-b850v3: Use " Peter Senna Tschudin
2016-09-26 8:27 ` Peter Senna Tschudin
2016-09-29 10:39 ` Shawn Guo
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