From: Frank Wunderlich <frank-w@public-files.de>
To: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Cc: Chun-Kuang Hu <chunkuang.hu@kernel.org>,
Daniel Vetter <daniel@ffwll.ch>, David Airlie <airlied@linux.ie>,
linux-kernel <linux-kernel@vger.kernel.org>,
DRI Development <dri-devel@lists.freedesktop.org>,
"moderated list:ARM/Mediatek SoC support"
<linux-mediatek@lists.infradead.org>,
Philipp Zabel <p.zabel@pengutronix.de>,
Matthias Brugger <matthias.bgg@gmail.com>,
Bibby Hsieh <bibby.hsieh@mediatek.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Aw: Re: [PATCH v2 1/5] drm/mediatek: config component output by device node port
Date: Sun, 2 Aug 2020 10:05:39 +0200 [thread overview]
Message-ID: <trinity-2bdb3521-256a-4d4d-928a-be9b8c179d4c-1596355539029@3c-app-gmx-bs58> (raw)
In-Reply-To: <CAAOTY_8nm0KDHFzOX9+qTTHOUd0Vik063J+rScu_y-hTBTkrCQ@mail.gmail.com>
> Gesendet: Sonntag, 02. August 2020 um 02:03 Uhr
> Von: "Chun-Kuang Hu" <chunkuang.hu@kernel.org>
> An: "Frank Wunderlich" <frank-w@public-files.de>
> Cc: "Chun-Kuang Hu" <chunkuang.hu@kernel.org>, "Philipp Zabel" <p.zabel@pengutronix.de>, "David Airlie" <airlied@linux.ie>, "linux-kernel" <linux-kernel@vger.kernel.org>, "DRI Development" <dri-devel@lists.freedesktop.org>, "moderated list:ARM/Mediatek SoC support" <linux-mediatek@lists.infradead.org>, "Daniel Vetter" <daniel@ffwll.ch>, "Matthias Brugger" <matthias.bgg@gmail.com>, "Bibby Hsieh" <bibby.hsieh@mediatek.com>, "Linux ARM" <linux-arm-kernel@lists.infradead.org>
> Betreff: Re: [PATCH v2 1/5] drm/mediatek: config component output by device node port
> > +
> > + if (comp_type != MTK_DSI && comp_type != MTK_DPI) {
> > + port = of_graph_get_port_by_id(node, 0);
> > + if (!port)
> > + continue;
> > + ep = of_get_child_by_name(port, "endpoint");
> > + of_node_put(port);
> > + if (!ep)
> > + continue;
> > + remote = of_graph_get_remote_port_parent(ep);
> > + of_node_put(ep);
> > + if (!remote)
> > + continue;
> > + of_id = of_match_node(mtk_ddp_comp_dt_ids, remote);
> > + if (!of_id)
> > + continue;
> > + comp_type = (enum mtk_ddp_comp_type)of_id->data;
> > + for (i = 0; i < private->data->main_len - 1; i++)
> > + if (private->data->main_path[i] == comp_id)
> > + private->data->main_path[i + 1] =
> > + mtk_ddp_comp_get_id(node, comp_type);
> > + for (i = 0; i < private->data->ext_len - 1; i++)
> > + if (private->data->ext_path[i] == comp_id)
> > + private->data->ext_path[i + 1] =
> > + mtk_ddp_comp_get_id(node, comp_type);
> > + }
>
> The port property is not defined in binding document [1], so define it
> in binding document first.
>
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt?h=v5.8-rc7
hi,
would be the following enough for describing the ports?
Port binding
=============
some nodes like
- connector (e.g. hdmi-connector)
- bls (mediatek,mt7623-disp-pwm)
- hdmix (mediatek,mt7623-hdmi)
can have port bindings to connect each other. Each port can have only 1 endpoint
more detail about ports/endpoints in ../../media/video-interfaces.txt
hdmi-connector is described here: ../connector/hdmi-connector.txt
example:
connector {
compatible = "hdmi-connector";
port {
hdmi_connector_in: endpoint {
remote-endpoint = <&hdmi0_out>;
};
};
};
&bls {
status = "okay";
port {
bls_out: endpoint {
remote-endpoint = <&dpi0_in>;
};
};
};
&dpi0 {
status = "okay";
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
dpi0_out: endpoint {
remote-endpoint = <&hdmi0_in>;
};
};
port@1 {
reg = <1>;
dpi0_in: endpoint {
remote-endpoint = <&bls_out>;
};
};
};
};
&hdmi0 {
ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
hdmi0_in: endpoint {
remote-endpoint = <&dpi0_out>;
};
};
port@1 {
reg = <1>;
hdmi0_out: endpoint {
remote-endpoint = <&hdmi_connector_in>;
};
};
};
};
regards Frank
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-08-02 8:08 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-28 11:17 [PATCH v2 0/5] make hdmi work on bananapi-r2 Frank Wunderlich
2020-07-28 11:17 ` [PATCH v2 1/5] drm/mediatek: config component output by device node port Frank Wunderlich
2020-08-02 0:03 ` Chun-Kuang Hu
2020-08-02 8:05 ` Frank Wunderlich [this message]
2020-08-02 23:47 ` Chun-Kuang Hu
2020-08-03 10:42 ` Aw: " Frank Wunderlich
2020-08-03 16:27 ` Chun-Kuang Hu
2020-08-03 18:02 ` Frank Wunderlich
2020-08-04 9:53 ` Aw: " Frank Wunderlich
2020-07-28 11:17 ` [PATCH v2 2/5] drm/mediatek: fix boot up for 720 and 480 but 1080 Frank Wunderlich
2020-08-02 0:08 ` Chun-Kuang Hu
2020-08-02 4:42 ` Frank Wunderlich
2020-08-02 23:38 ` Chun-Kuang Hu
2020-07-28 11:17 ` [PATCH v2 3/5] drm: Add get_possible_crtc API for dpi, dsi Frank Wunderlich
2020-08-02 3:02 ` Chun-Kuang Hu
2020-07-28 11:17 ` [PATCH v2 4/5] drm/mediatek: dpi/dsi: change the getting possible_crtc way Frank Wunderlich
2020-08-02 3:07 ` Chun-Kuang Hu
2020-08-02 8:17 ` Frank Wunderlich
2020-07-28 11:18 ` [PATCH v2 5/5] arm: dts: mt7623: add display subsystem related device nodes Frank Wunderlich
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