diff mbox series

[v2,4/4] dt-bindings: display/panel: Add Leadtek ltk035c5444t

Message ID 20220308130643.260683-5-cbranchereau@gmail.com (mailing list archive)
State Superseded
Headers show
Series Ingenic DRM bridge_atomic_enable proposal | expand

Commit Message

Christophe Branchereau March 8, 2022, 1:06 p.m. UTC
Add binding for the leadtek ltk035c5444t, which is a 640x480
mipi-dbi over spi / 24-bit RGB panel based on the newvision
NV03052C chipset.

It is found in the Anbernic RG350M mips handheld.

Signed-off-by: Christophe Branchereau <cbranchereau@gmail.com>
---
 .../panel/leadtek,ltk035c5444t-spi.yaml       | 59 +++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t-spi.yaml

Comments

Rob Herring March 10, 2022, 10:30 p.m. UTC | #1
On Tue, Mar 08, 2022 at 02:06:43PM +0100, Christophe Branchereau wrote:
> Add binding for the leadtek ltk035c5444t, which is a 640x480
> mipi-dbi over spi / 24-bit RGB panel based on the newvision
> NV03052C chipset.
> 
> It is found in the Anbernic RG350M mips handheld.
> 
> Signed-off-by: Christophe Branchereau <cbranchereau@gmail.com>
> ---
>  .../panel/leadtek,ltk035c5444t-spi.yaml       | 59 +++++++++++++++++++
>  1 file changed, 59 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t-spi.yaml

We have 18 SPI based panels already:

$ git grep -i 'spi.* {' Documentation/devicetree/bindings/display/panel/
Documentation/devicetree/bindings/display/panel/abt,y030xx067a.yaml:    spi {
Documentation/devicetree/bindings/display/panel/ilitek,ili9163.yaml:    spi {
Documentation/devicetree/bindings/display/panel/ilitek,ili9322.yaml:    spi {
Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml:    spi {
Documentation/devicetree/bindings/display/panel/innolux,ej030na.yaml:    spi {
Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml:    spi {
Documentation/devicetree/bindings/display/panel/lg,lg4573.yaml:    spi {
Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml:    spi {
Documentation/devicetree/bindings/display/panel/nec,nl8048hl11.yaml:    spi0 {
Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml:    spi {
Documentation/devicetree/bindings/display/panel/samsung,lms380kf01.yaml:    spi {
Documentation/devicetree/bindings/display/panel/samsung,lms397kf04.yaml:    spi {
Documentation/devicetree/bindings/display/panel/samsung,s6d27a1.yaml:    spi {
Documentation/devicetree/bindings/display/panel/samsung,s6e63m0.yaml:    spi {
Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml:    spi {
Documentation/devicetree/bindings/display/panel/sony,acx565akm.yaml:    spi {
Documentation/devicetree/bindings/display/panel/tpo,td.yaml:    spi {
Documentation/devicetree/bindings/display/panel/tpo,tpg110.yaml:    spi {

Most except for the Samsung ones look like they'd fit in our definition 
of 'simple panels' which primarily means 1 supply.

So I think it is time for a panel-simple-spi.yaml binding to combine all 
these. But I'm not going to make the person adding the 19th case to do 
that, and this otherwise looks fine:

Reviewed-by: Rob Herring <robh@kernel.org>

With one nit fixed below:

> 
> diff --git a/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t-spi.yaml b/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t-spi.yaml
> new file mode 100644
> index 000000000000..9b6f1810adab
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t-spi.yaml
> @@ -0,0 +1,59 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/panel/leadtek,ltk035c5444t-spi.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Leadtek ltk035c5444t 3.5" (640x480 pixels) 24-bit IPS LCD panel
> +
> +maintainers:
> +  - Paul Cercueil <paul@crapouillou.net>
> +  - Christophe Branchereau <cbranchereau@gmail.com>
> +
> +allOf:
> +  - $ref: panel-common.yaml#
> +  - $ref: /schemas/spi/spi-peripheral-props.yaml#
> +
> +properties:
> +  compatible:
> +    const: leadtek,ltk035c5444t-spi

'-spi' is redundant, so drop.

> +
> +  backlight: true
> +  port: true
> +  power-supply: true
> +  reg: true
> +  reset-gpios: true
> +
> +required:
> +  - compatible
> +  - power-supply
> +  - reset-gpios
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +
> +    spi {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +        panel@0 {
> +            compatible = "leadtek,ltk035c5444t-spi";

And update the example...

> +            reg = <0>;
> +
> +            spi-3wire;
> +            spi-max-frequency = <3125000>;
> +
> +            reset-gpios = <&gpe 2 GPIO_ACTIVE_LOW>;
> +
> +            backlight = <&backlight>;
> +            power-supply = <&vcc>;
> +
> +            port {
> +                panel_input: endpoint {
> +                    remote-endpoint = <&panel_output>;
> +                };
> +            };
> +        };
> +    };
> -- 
> 2.34.1
> 
>
Paul Cercueil March 11, 2022, 1:05 p.m. UTC | #2
Hi Rob,

Le jeu., mars 10 2022 at 16:30:26 -0600, Rob Herring <robh@kernel.org> 
a écrit :
> On Tue, Mar 08, 2022 at 02:06:43PM +0100, Christophe Branchereau 
> wrote:
>>  Add binding for the leadtek ltk035c5444t, which is a 640x480
>>  mipi-dbi over spi / 24-bit RGB panel based on the newvision
>>  NV03052C chipset.
>> 
>>  It is found in the Anbernic RG350M mips handheld.
>> 
>>  Signed-off-by: Christophe Branchereau <cbranchereau@gmail.com>
>>  ---
>>   .../panel/leadtek,ltk035c5444t-spi.yaml       | 59 
>> +++++++++++++++++++
>>   1 file changed, 59 insertions(+)
>>   create mode 100644 
>> Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t-spi.yaml
> 
> We have 18 SPI based panels already:
> 
> $ git grep -i 'spi.* {' 
> Documentation/devicetree/bindings/display/panel/
> Documentation/devicetree/bindings/display/panel/abt,y030xx067a.yaml:  
>   spi {
> Documentation/devicetree/bindings/display/panel/ilitek,ili9163.yaml:  
>   spi {
> Documentation/devicetree/bindings/display/panel/ilitek,ili9322.yaml:  
>   spi {
> Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml:  
>   spi {
> Documentation/devicetree/bindings/display/panel/innolux,ej030na.yaml: 
>    spi {
> Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml: 
>    spi {
> Documentation/devicetree/bindings/display/panel/lg,lg4573.yaml:    
> spi {
> Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml: 
>    spi {
> Documentation/devicetree/bindings/display/panel/nec,nl8048hl11.yaml:  
>   spi0 {
> Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml:  
>   spi {
> Documentation/devicetree/bindings/display/panel/samsung,lms380kf01.yaml: 
>    spi {
> Documentation/devicetree/bindings/display/panel/samsung,lms397kf04.yaml: 
>    spi {
> Documentation/devicetree/bindings/display/panel/samsung,s6d27a1.yaml: 
>    spi {
> Documentation/devicetree/bindings/display/panel/samsung,s6e63m0.yaml: 
>    spi {
> Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml: 
>    spi {
> Documentation/devicetree/bindings/display/panel/sony,acx565akm.yaml:  
>   spi {
> Documentation/devicetree/bindings/display/panel/tpo,td.yaml:    spi {
> Documentation/devicetree/bindings/display/panel/tpo,tpg110.yaml:    
> spi {
> 
> Most except for the Samsung ones look like they'd fit in our 
> definition
> of 'simple panels' which primarily means 1 supply.
> 
> So I think it is time for a panel-simple-spi.yaml binding to combine 
> all
> these. But I'm not going to make the person adding the 19th case to do
> that, and this otherwise looks fine:
> 
> Reviewed-by: Rob Herring <robh@kernel.org>

I actually thought you sent a patch for this already (I remember you 
talking about it last a binding for a new SPI panel has been added).

I will work on it next week - provided Cristophe's patch has been 
merged before.

Cheers,
-Paul

> 
> With one nit fixed below:
> 
>> 
>>  diff --git 
>> a/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t-spi.yaml 
>> b/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t-spi.yaml
>>  new file mode 100644
>>  index 000000000000..9b6f1810adab
>>  --- /dev/null
>>  +++ 
>> b/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t-spi.yaml
>>  @@ -0,0 +1,59 @@
>>  +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>>  +%YAML 1.2
>>  +---
>>  +$id: 
>> http://devicetree.org/schemas/display/panel/leadtek,ltk035c5444t-spi.yaml#
>>  +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>  +
>>  +title: Leadtek ltk035c5444t 3.5" (640x480 pixels) 24-bit IPS LCD 
>> panel
>>  +
>>  +maintainers:
>>  +  - Paul Cercueil <paul@crapouillou.net>
>>  +  - Christophe Branchereau <cbranchereau@gmail.com>
>>  +
>>  +allOf:
>>  +  - $ref: panel-common.yaml#
>>  +  - $ref: /schemas/spi/spi-peripheral-props.yaml#
>>  +
>>  +properties:
>>  +  compatible:
>>  +    const: leadtek,ltk035c5444t-spi
> 
> '-spi' is redundant, so drop.
> 
>>  +
>>  +  backlight: true
>>  +  port: true
>>  +  power-supply: true
>>  +  reg: true
>>  +  reset-gpios: true
>>  +
>>  +required:
>>  +  - compatible
>>  +  - power-supply
>>  +  - reset-gpios
>>  +
>>  +unevaluatedProperties: false
>>  +
>>  +examples:
>>  +  - |
>>  +    #include <dt-bindings/gpio/gpio.h>
>>  +
>>  +    spi {
>>  +        #address-cells = <1>;
>>  +        #size-cells = <0>;
>>  +        panel@0 {
>>  +            compatible = "leadtek,ltk035c5444t-spi";
> 
> And update the example...
> 
>>  +            reg = <0>;
>>  +
>>  +            spi-3wire;
>>  +            spi-max-frequency = <3125000>;
>>  +
>>  +            reset-gpios = <&gpe 2 GPIO_ACTIVE_LOW>;
>>  +
>>  +            backlight = <&backlight>;
>>  +            power-supply = <&vcc>;
>>  +
>>  +            port {
>>  +                panel_input: endpoint {
>>  +                    remote-endpoint = <&panel_output>;
>>  +                };
>>  +            };
>>  +        };
>>  +    };
>>  --
>>  2.34.1
>> 
>>
Rob Herring March 11, 2022, 3:02 p.m. UTC | #3
On Fri, Mar 11, 2022 at 7:05 AM Paul Cercueil <paul@crapouillou.net> wrote:
>
> Hi Rob,
>
> Le jeu., mars 10 2022 at 16:30:26 -0600, Rob Herring <robh@kernel.org>
> a écrit :
> > On Tue, Mar 08, 2022 at 02:06:43PM +0100, Christophe Branchereau
> > wrote:
> >>  Add binding for the leadtek ltk035c5444t, which is a 640x480
> >>  mipi-dbi over spi / 24-bit RGB panel based on the newvision
> >>  NV03052C chipset.
> >>
> >>  It is found in the Anbernic RG350M mips handheld.
> >>
> >>  Signed-off-by: Christophe Branchereau <cbranchereau@gmail.com>
> >>  ---
> >>   .../panel/leadtek,ltk035c5444t-spi.yaml       | 59
> >> +++++++++++++++++++
> >>   1 file changed, 59 insertions(+)
> >>   create mode 100644
> >> Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t-spi.yaml
> >
> > We have 18 SPI based panels already:
> >
> > $ git grep -i 'spi.* {'
> > Documentation/devicetree/bindings/display/panel/
> > Documentation/devicetree/bindings/display/panel/abt,y030xx067a.yaml:
> >   spi {
> > Documentation/devicetree/bindings/display/panel/ilitek,ili9163.yaml:
> >   spi {
> > Documentation/devicetree/bindings/display/panel/ilitek,ili9322.yaml:
> >   spi {
> > Documentation/devicetree/bindings/display/panel/ilitek,ili9341.yaml:
> >   spi {
> > Documentation/devicetree/bindings/display/panel/innolux,ej030na.yaml:
> >    spi {
> > Documentation/devicetree/bindings/display/panel/kingdisplay,kd035g6-54nt.yaml:
> >    spi {
> > Documentation/devicetree/bindings/display/panel/lg,lg4573.yaml:
> > spi {
> > Documentation/devicetree/bindings/display/panel/lgphilips,lb035q02.yaml:
> >    spi {
> > Documentation/devicetree/bindings/display/panel/nec,nl8048hl11.yaml:
> >   spi0 {
> > Documentation/devicetree/bindings/display/panel/samsung,ld9040.yaml:
> >   spi {
> > Documentation/devicetree/bindings/display/panel/samsung,lms380kf01.yaml:
> >    spi {
> > Documentation/devicetree/bindings/display/panel/samsung,lms397kf04.yaml:
> >    spi {
> > Documentation/devicetree/bindings/display/panel/samsung,s6d27a1.yaml:
> >    spi {
> > Documentation/devicetree/bindings/display/panel/samsung,s6e63m0.yaml:
> >    spi {
> > Documentation/devicetree/bindings/display/panel/sitronix,st7789v.yaml:
> >    spi {
> > Documentation/devicetree/bindings/display/panel/sony,acx565akm.yaml:
> >   spi {
> > Documentation/devicetree/bindings/display/panel/tpo,td.yaml:    spi {
> > Documentation/devicetree/bindings/display/panel/tpo,tpg110.yaml:
> > spi {
> >
> > Most except for the Samsung ones look like they'd fit in our
> > definition
> > of 'simple panels' which primarily means 1 supply.
> >
> > So I think it is time for a panel-simple-spi.yaml binding to combine
> > all
> > these. But I'm not going to make the person adding the 19th case to do
> > that, and this otherwise looks fine:
> >
> > Reviewed-by: Rob Herring <robh@kernel.org>
>
> I actually thought you sent a patch for this already (I remember you
> talking about it last a binding for a new SPI panel has been added).

It was just adding spi-peripheral-props.yaml reference that I sent.

> I will work on it next week - provided Cristophe's patch has been
> merged before.

Thanks!

Rob
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t-spi.yaml b/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t-spi.yaml
new file mode 100644
index 000000000000..9b6f1810adab
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/leadtek,ltk035c5444t-spi.yaml
@@ -0,0 +1,59 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/leadtek,ltk035c5444t-spi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Leadtek ltk035c5444t 3.5" (640x480 pixels) 24-bit IPS LCD panel
+
+maintainers:
+  - Paul Cercueil <paul@crapouillou.net>
+  - Christophe Branchereau <cbranchereau@gmail.com>
+
+allOf:
+  - $ref: panel-common.yaml#
+  - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+properties:
+  compatible:
+    const: leadtek,ltk035c5444t-spi
+
+  backlight: true
+  port: true
+  power-supply: true
+  reg: true
+  reset-gpios: true
+
+required:
+  - compatible
+  - power-supply
+  - reset-gpios
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+        panel@0 {
+            compatible = "leadtek,ltk035c5444t-spi";
+            reg = <0>;
+
+            spi-3wire;
+            spi-max-frequency = <3125000>;
+
+            reset-gpios = <&gpe 2 GPIO_ACTIVE_LOW>;
+
+            backlight = <&backlight>;
+            power-supply = <&vcc>;
+
+            port {
+                panel_input: endpoint {
+                    remote-endpoint = <&panel_output>;
+                };
+            };
+        };
+    };