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Message-ID: <20200810173843.GB292825@ravnborg.org>
Date: Mon, 10 Aug 2020 19:38:43 +0200
From: Sam Ravnborg <sam@...nborg.org>
To: Vinay Simha B N <simhavcs@...il.com>
Cc: "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@...r.kernel.org>, David Airlie <airlied@...ux.ie>,
open list <linux-kernel@...r.kernel.org>,
"open list:DRM DRIVERS" <dri-devel@...ts.freedesktop.org>,
Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH v8 1/2] dt-binding: Add DSI/LVDS TC358775 bridge bindings
Hi Vinay.
On Wed, Jul 29, 2020 at 06:01:21PM +0530, Vinay Simha B N wrote:
> Hi All,
>
> Please Review the patch
>
> On Fri, Jul 10, 2020 at 7:11 PM Vinay Simha BN <simhavcs@...il.com> wrote:
>
> > - license modified to (GPL-2.0-only OR BSD-2-Clause)
> > - single-link and dual-link lvds description and
> > examples are added
> > - proper indentation
> > - VESA/JEIDA formats picked from panel-lvds dts
> > - dsi data-lanes property removed, it will be picked
> > from dsi0 ports
> > - dual-link lvds port added and implemented
> > - converted from .txt to .yaml
> >
> > Signed-off-by: Vinay Simha BN <simhavcs@...il.com>
> > Reviewed-by: Sam Ravnborg <sam@...nborg.org>
> > Reviewed-by: Rob Herring <robh@...nel.org>
The binding is already reviewed by Rob and me - as you have recorded
above. It will be applied when the driver is ready.
Sam
> > ---
> > v1:
> > Initial version wast .txt file
> >
> > v2:
> > From txt to yaml file format
> >
> > v3:
> > * Andrzej Hajda review comments incorporated
> > dual port lvds implemented
> >
> > * Laurent Pinchart review comments incorporated
> > dsi lanes property removed and it is dynamically
> > picked from the dsi ports
> > VESA/JEIDA format picked from panel-lvds dts
> >
> > v4:
> > * Sam Ravnborg review comments incorporated
> > }' is indented properly in examples data-lanes
> > description for single-link and dual-link lvds
> >
> > v5:
> > * Sam Ravnborg review comments incorporated
> > license modified to (GPL-2.0-only OR BSD-2-Clause)
> > changelog added
> >
> > v6:
> > * No changes, revision version mentioned to inline with
> > driver file
> >
> > v7:
> > * change log added
> > Reviewed-by: Sam Ravnborg <sam@...nborg.org>
> >
> > v8:
> > * Reviewed-by: Rob Herring <robh@...nel.org>
> > * change log modified in reverse chronological order
> > ---
> > .../bindings/display/bridge/toshiba,tc358775.yaml | 215
> > +++++++++++++++++++++
> > 1 file changed, 215 insertions(+)
> > create mode 100644
> > Documentation/devicetree/bindings/display/bridge/toshiba,tc358775.yaml
> >
> > diff --git
> > a/Documentation/devicetree/bindings/display/bridge/toshiba,tc358775.yaml
> > b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358775.yaml
> > new file mode 100644
> > index 0000000..31f085d
> > --- /dev/null
> > +++
> > b/Documentation/devicetree/bindings/display/bridge/toshiba,tc358775.yaml
> > @@ -0,0 +1,215 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/display/bridge/toshiba,tc358775.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Toshiba TC358775 DSI to LVDS bridge bindings
> > +
> > +maintainers:
> > + - Vinay Simha BN <simhavcs@...il.com>
> > +
> > +description: |
> > + This binding supports DSI to LVDS bridge TC358775
> > +
> > + MIPI DSI-RX Data 4-lane, CLK 1-lane with data rates up to 800 Mbps/lane.
> > + Video frame size:
> > + Up to 1600x1200 24-bit/pixel resolution for single-link LVDS display
> > panel
> > + limited by 135 MHz LVDS speed
> > + Up to WUXGA (1920x1200 24-bit pixels) resolution for dual-link LVDS
> > display
> > + panel, limited by 270 MHz LVDS speed.
> > +
> > +properties:
> > + compatible:
> > + const: toshiba,tc358775
> > +
> > + reg:
> > + maxItems: 1
> > + description: i2c address of the bridge, 0x0f
> > +
> > + vdd-supply:
> > + maxItems: 1
> > + description: 1.2V LVDS Power Supply
> > +
> > + vddio-supply:
> > + maxItems: 1
> > + description: 1.8V IO Power Supply
> > +
> > + stby-gpios:
> > + maxItems: 1
> > + description: Standby pin, Low active
> > +
> > + reset-gpios:
> > + maxItems: 1
> > + description: Hardware reset, Low active
> > +
> > + ports:
> > + type: object
> > + description:
> > + A node containing input and output port nodes with endpoint
> > definitions
> > + as documented in
> > + Documentation/devicetree/bindings/media/video-interfaces.txt
> > + properties:
> > + "#address-cells":
> > + const: 1
> > +
> > + "#size-cells":
> > + const: 0
> > +
> > + port@0:
> > + type: object
> > + description: |
> > + DSI Input. The remote endpoint phandle should be a
> > + reference to a valid mipi_dsi_host device node.
> > +
> > + port@1:
> > + type: object
> > + description: |
> > + Video port for LVDS output (panel or connector).
> > +
> > + port@2:
> > + type: object
> > + description: |
> > + Video port for Dual link LVDS output (panel or connector).
> > +
> > + required:
> > + - port@0
> > + - port@1
> > +
> > +required:
> > + - compatible
> > + - reg
> > + - vdd-supply
> > + - vddio-supply
> > + - stby-gpios
> > + - reset-gpios
> > + - ports
> > +
> > +examples:
> > + - |
> > + #include <dt-bindings/gpio/gpio.h>
> > +
> > + /* For single-link LVDS display panel */
> > +
> > + i2c@...8000 {
> > + /* On High speed expansion */
> > + label = "HS-I2C2";
> > + reg = <0x078b8000 0x500>;
> > + clock-frequency = <400000>; /* fastmode operation */
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + tc_bridge: bridge@f {
> > + compatible = "toshiba,tc358775";
> > + reg = <0x0f>;
> > +
> > + vdd-supply = <&pm8916_l2>;
> > + vddio-supply = <&pm8916_l6>;
> > +
> > + stby-gpios = <&msmgpio 99 GPIO_ACTIVE_LOW>;
> > + reset-gpios = <&msmgpio 72 GPIO_ACTIVE_LOW>;
> > +
> > + ports {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + port@0 {
> > + reg = <0>;
> > + d2l_in_test: endpoint {
> > + remote-endpoint = <&dsi0_out>;
> > + };
> > + };
> > +
> > + port@1 {
> > + reg = <1>;
> > + lvds_out: endpoint {
> > + remote-endpoint = <&panel_in>;
> > + };
> > + };
> > + };
> > + };
> > + };
> > +
> > + dsi@...8000 {
> > + reg = <0x1a98000 0x25c>;
> > + reg-names = "dsi_ctrl";
> > +
> > + ports {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + port@1 {
> > + reg = <1>;
> > + dsi0_out: endpoint {
> > + remote-endpoint = <&d2l_in_test>;
> > + data-lanes = <0 1 2 3>;
> > + };
> > + };
> > + };
> > + };
> > +
> > + - |
> > + /* For dual-link LVDS display panel */
> > +
> > + i2c@...8000 {
> > + /* On High speed expansion */
> > + label = "HS-I2C2";
> > + reg = <0x078b8000 0x500>;
> > + clock-frequency = <400000>; /* fastmode operation */
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + tc_bridge_dual: bridge@f {
> > + compatible = "toshiba,tc358775";
> > + reg = <0x0f>;
> > +
> > + vdd-supply = <&pm8916_l2>;
> > + vddio-supply = <&pm8916_l6>;
> > +
> > + stby-gpios = <&msmgpio 99 GPIO_ACTIVE_LOW>;
> > + reset-gpios = <&msmgpio 72 GPIO_ACTIVE_LOW>;
> > +
> > + ports {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > +
> > + port@0 {
> > + reg = <0>;
> > + d2l_in_dual: endpoint {
> > + remote-endpoint = <&dsi0_out_dual>;
> > + };
> > + };
> > +
> > + port@1 {
> > + reg = <1>;
> > + lvds0_out: endpoint {
> > + remote-endpoint = <&panel_in0>;
> > + };
> > + };
> > +
> > + port@2 {
> > + reg = <2>;
> > + lvds1_out: endpoint {
> > + remote-endpoint = <&panel_in1>;
> > + };
> > + };
> > + };
> > + };
> > + };
> > +
> > + dsi@...8000 {
> > + reg = <0x1a98000 0x25c>;
> > + reg-names = "dsi_ctrl";
> > +
> > + ports {
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + port@1 {
> > + reg = <1>;
> > + dsi0_out_dual: endpoint {
> > + remote-endpoint = <&d2l_in_dual>;
> > + data-lanes = <0 1 2 3>;
> > + };
> > + };
> > + };
> > + };
> > +...
> > --
> > 2.1.2
> >
> >
>
> --
> regards,
> vinaysimha
> _______________________________________________
> dri-devel mailing list
> dri-devel@...ts.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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