[PATCH v4 0/2] Add LVDS panel support to HiHope RZ/G2M

[PATCH v4 0/2] Add LVDS panel support to HiHope RZ/G2M

[Lad Prabhakar]

Dear All,

The HiHope RZ/G2M is advertised as supporting panel idk-1110wr from
Advantech, but the panel doesn't come with the board, it has to purchased
separatey, therefore this series adds panel support to a new DT.

v3->v4
 * Included rzg2-advantech-idk-1110wr-panel.dtsi in
   r8a774a1-hihope-rzg2m-ex-idk-1110wr.dts file instead of re-inventing
   the wheel.
 * Dropped the Ack from Laurent for patch 2/2 due to above changes

v2->v3
 * Included Reviewed-by from Rob and Laurent
 * Switched to dual license
 * Added myself as the maintainer
 * Updated copyright year
 * Rebased the patches

v1->v2
 * fixed a space according to Geert's feedback.

Thanks,
Prabhakar

Fabrizio Castro (2):
  dt-bindings: display: Add idk-1110wr binding
  arm64: dts: renesas: Add HiHope RZ/G2M board with idk-1110wr display

 .../display/panel/advantech,idk-1110wr.yaml        | 69 ++++++++++++++++++++++
 arch/arm64/boot/dts/renesas/Makefile               |  1 +
 .../r8a774a1-hihope-rzg2m-ex-idk-1110wr.dts        | 52 ++++++++++++++++
 3 files changed, 122 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/panel/advantech,idk-1110wr.yaml
 create mode 100644 arch/arm64/boot/dts/renesas/r8a774a1-hihope-rzg2m-ex-idk-1110wr.dts

-- 
2.7.4

[PATCH v4 1/2] dt-bindings: display: Add idk-1110wr binding

[Lad Prabhakar]

From: Fabrizio Castro <fabrizio.castro@bp.renesas.com>

Add binding for the idk-1110wr LVDS panel from Advantech.

Some panel-specific documentation can be found here:
https://buy.advantech.eu/Displays/Embedded-LCD-Kits-LCD-Kit-Modules/model-IDK-1110WR-55WSA1E.htm

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 .../display/panel/advantech,idk-1110wr.yaml        | 69 ++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/display/panel/advantech,idk-1110wr.yaml

diff --git a/Documentation/devicetree/bindings/display/panel/advantech,idk-1110wr.yaml b/Documentation/devicetree/bindings/display/panel/advantech,idk-1110wr.yaml
new file mode 100644
index 0000000..93878c2
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/advantech,idk-1110wr.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/advantech,idk-1110wr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Advantech IDK-1110WR 10.1" WSVGA LVDS Display Panel
+
+maintainers:
+  - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
+  - Thierry Reding <thierry.reding@gmail.com>
+
+allOf:
+  - $ref: lvds.yaml#
+
+properties:
+  compatible:
+    items:
+      - const: advantech,idk-1110wr
+      - {} # panel-lvds, but not listed here to avoid false select
+
+  data-mapping:
+    const: jeida-24
+
+  width-mm:
+    const: 223
+
+  height-mm:
+    const: 125
+
+  panel-timing: true
+  port: true
+
+additionalProperties: false
+
+required:
+  - compatible
+
+examples:
+  - |+
+    panel {
+      compatible = "advantech,idk-1110wr", "panel-lvds";
+
+      width-mm = <223>;
+      height-mm = <125>;
+
+      data-mapping = "jeida-24";
+
+      panel-timing {
+        /* 1024x600 @60Hz */
+        clock-frequency = <51200000>;
+        hactive = <1024>;
+        vactive = <600>;
+        hsync-len = <240>;
+        hfront-porch = <40>;
+        hback-porch = <40>;
+        vsync-len = <10>;
+        vfront-porch = <15>;
+        vback-porch = <10>;
+      };
+
+      port {
+        panel_in: endpoint {
+          remote-endpoint = <&lvds_encoder>;
+        };
+      };
+    };
+
+...
-- 
2.7.4

[PATCH v4 2/2] arm64: dts: renesas: Add HiHope RZ/G2M board with idk-1110wr display

[Lad Prabhakar]

From: Fabrizio Castro <fabrizio.castro@bp.renesas.com>

The HiHope RZ/G2M is advertised as compatible with panel idk-1110wr
from Advantech, however the panel isn't sold alongside the board.
A new dts, adding everything that's required to get the panel to
work with HiHope RZ/G2M, is the most convenient way to support the
HiHope RZ/G2M when it's connected to the idk-1110wr.

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
---
 arch/arm64/boot/dts/renesas/Makefile               |  1 +
 .../r8a774a1-hihope-rzg2m-ex-idk-1110wr.dts        | 52 ++++++++++++++++++++++
 2 files changed, 53 insertions(+)
 create mode 100644 arch/arm64/boot/dts/renesas/r8a774a1-hihope-rzg2m-ex-idk-1110wr.dts

diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile
index 2153842..82dd245 100644
--- a/arch/arm64/boot/dts/renesas/Makefile
+++ b/arch/arm64/boot/dts/renesas/Makefile
@@ -1,6 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_R8A774A1) += r8a774a1-hihope-rzg2m.dtb
 dtb-$(CONFIG_ARCH_R8A774A1) += r8a774a1-hihope-rzg2m-ex.dtb
+dtb-$(CONFIG_ARCH_R8A774A1) += r8a774a1-hihope-rzg2m-ex-idk-1110wr.dtb
 dtb-$(CONFIG_ARCH_R8A774B1) += r8a774b1-hihope-rzg2n.dtb
 dtb-$(CONFIG_ARCH_R8A774B1) += r8a774b1-hihope-rzg2n-ex.dtb
 dtb-$(CONFIG_ARCH_R8A774C0) += r8a774c0-cat874.dtb r8a774c0-ek874.dtb \
diff --git a/arch/arm64/boot/dts/renesas/r8a774a1-hihope-rzg2m-ex-idk-1110wr.dts b/arch/arm64/boot/dts/renesas/r8a774a1-hihope-rzg2m-ex-idk-1110wr.dts
new file mode 100644
index 0000000..2ab5edd
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r8a774a1-hihope-rzg2m-ex-idk-1110wr.dts
@@ -0,0 +1,52 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the HiHope RZ/G2M sub board connected to an
+ * Advantech IDK-1110WR 10.1" LVDS panel
+ *
+ * Copyright (C) 2020 Renesas Electronics Corp.
+ */
+
+#include "r8a774a1-hihope-rzg2m-ex.dts"
+#include "rzg2-advantech-idk-1110wr-panel.dtsi"
+
+/ {
+	backlight {
+		compatible = "pwm-backlight";
+		pwms = <&pwm0 0 50000>;
+
+		brightness-levels = <0 2 8 16 32 64 128 255>;
+		default-brightness-level = <6>;
+	};
+
+};
+
+&gpio1 {
+	/*
+	 * When GP1_20 is LOW LVDS0 is connected to the LVDS connector
+	 * When GP1_20 is HIGH LVDS0 is connected to the LT8918L
+	 */
+	lvds-connector-en-gpio {
+		gpio-hog;
+		gpios = <20 GPIO_ACTIVE_HIGH>;
+		output-low;
+		line-name = "lvds-connector-en-gpio";
+	};
+};
+
+&lvds0 {
+	status = "okay";
+};
+
+&pfc {
+	pwm0_pins: pwm0 {
+		groups = "pwm0";
+		function = "pwm0";
+	};
+};
+
+&pwm0 {
+	pinctrl-0 = <&pwm0_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+};
-- 
2.7.4

Re: [PATCH v4 0/2] Add LVDS panel support to HiHope RZ/G2M

[Geert Uytterhoeven]

Hi Lad,

On Wed, Mar 11, 2020 at 9:03 PM Lad Prabhakar
<prabhakar.mahadev-lad.rj@bp.renesas.com> wrote:
> The HiHope RZ/G2M is advertised as supporting panel idk-1110wr from
> Advantech, but the panel doesn't come with the board, it has to purchased
> separatey, therefore this series adds panel support to a new DT.
>
> v3->v4
>  * Included rzg2-advantech-idk-1110wr-panel.dtsi in
>    r8a774a1-hihope-rzg2m-ex-idk-1110wr.dts file instead of re-inventing
>    the wheel.
>  * Dropped the Ack from Laurent for patch 2/2 due to above changes
>
> v2->v3
>  * Included Reviewed-by from Rob and Laurent
>  * Switched to dual license
>  * Added myself as the maintainer
>  * Updated copyright year
>  * Rebased the patches
>
> v1->v2
>  * fixed a space according to Geert's feedback.
>
> Thanks,
> Prabhakar
>
> Fabrizio Castro (2):
>   dt-bindings: display: Add idk-1110wr binding
>   arm64: dts: renesas: Add HiHope RZ/G2M board with idk-1110wr display
>
>  .../display/panel/advantech,idk-1110wr.yaml        | 69 ++++++++++++++++++++++
>  arch/arm64/boot/dts/renesas/Makefile               |  1 +
>  .../r8a774a1-hihope-rzg2m-ex-idk-1110wr.dts        | 52 ++++++++++++++++
>  3 files changed, 122 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/panel/advantech,idk-1110wr.yaml
>  create mode 100644 arch/arm64/boot/dts/renesas/r8a774a1-hihope-rzg2m-ex-idk-1110wr.dts

Thanks for the update!
I've queued the second patch in renesas-devel for v5.7.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

Re: [PATCH v4 1/2] dt-bindings: display: Add idk-1110wr binding

[Sam Ravnborg]

Hi Prabhakar

On Wed, Mar 11, 2020 at 08:03:39PM +0000, Lad Prabhakar wrote:
> From: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
> 
> Add binding for the idk-1110wr LVDS panel from Advantech.
> 
> Some panel-specific documentation can be found here:
> https://buy.advantech.eu/Displays/Embedded-LCD-Kits-LCD-Kit-Modules/model-IDK-1110WR-55WSA1E.htm
> 
> Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
> Reviewed-by: Rob Herring <robh@kernel.org>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Applied, and pushed to drm-misc-next.

	Sam

> ---
>  .../display/panel/advantech,idk-1110wr.yaml        | 69 ++++++++++++++++++++++
>  1 file changed, 69 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/panel/advantech,idk-1110wr.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/advantech,idk-1110wr.yaml b/Documentation/devicetree/bindings/display/panel/advantech,idk-1110wr.yaml
> new file mode 100644
> index 0000000..93878c2
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/advantech,idk-1110wr.yaml
> @@ -0,0 +1,69 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/panel/advantech,idk-1110wr.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Advantech IDK-1110WR 10.1" WSVGA LVDS Display Panel
> +
> +maintainers:
> +  - Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> +  - Thierry Reding <thierry.reding@gmail.com>
> +
> +allOf:
> +  - $ref: lvds.yaml#
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: advantech,idk-1110wr
> +      - {} # panel-lvds, but not listed here to avoid false select
> +
> +  data-mapping:
> +    const: jeida-24
> +
> +  width-mm:
> +    const: 223
> +
> +  height-mm:
> +    const: 125
> +
> +  panel-timing: true
> +  port: true
> +
> +additionalProperties: false
> +
> +required:
> +  - compatible
> +
> +examples:
> +  - |+
> +    panel {
> +      compatible = "advantech,idk-1110wr", "panel-lvds";
> +
> +      width-mm = <223>;
> +      height-mm = <125>;
> +
> +      data-mapping = "jeida-24";
> +
> +      panel-timing {
> +        /* 1024x600 @60Hz */
> +        clock-frequency = <51200000>;
> +        hactive = <1024>;
> +        vactive = <600>;
> +        hsync-len = <240>;
> +        hfront-porch = <40>;
> +        hback-porch = <40>;
> +        vsync-len = <10>;
> +        vfront-porch = <15>;
> +        vback-porch = <10>;
> +      };
> +
> +      port {
> +        panel_in: endpoint {
> +          remote-endpoint = <&lvds_encoder>;
> +        };
> +      };
> +    };
> +
> +...
> -- 
> 2.7.4