[PATCH 0/6] Add LCD and LVDS controller for sama7d65 SoC

[PATCH 0/6] Add LCD and LVDS controller for sama7d65 SoC

[Manikandan Muralidharan]

This patch series adds support for image subsystem nodes
like LCD and LVDS controller in sama7d65 SoC with binidngs.
Also takes care of enabling the required configs.

Aubin Constans (1):
  ARM: configs: at91: sama7: enable LVDS serializer support

Manikandan Muralidharan (1):
  dt-bindings: display: bridge: microchip,sam9x75-lvds: document
    SAMA7D65 binding

Romain Sioen (1):
  ARM: configs: at91: sama7: enable config for atmel maxtouch

Ryan Wanner (3):
  ARM: dts: microchip: sama7d65: add LCD controller
  ARM: dts: microchip: sama7d65: add LVDS controller
  ARM: configs: at91: sama7: enable DRM hlcdc support

 .../bridge/microchip,sam9x75-lvds.yaml        |  6 +++-
 arch/arm/boot/dts/microchip/sama7d65.dtsi     | 35 +++++++++++++++++++
 arch/arm/configs/sama7_defconfig              | 10 ++++++
 3 files changed, 50 insertions(+), 1 deletion(-)


base-commit: 7dff99b354601dd01829e1511711846e04340a69
-- 
2.25.1

[PATCH 1/6] ARM: dts: microchip: sama7d65: add LCD controller

[Manikandan Muralidharan]

From: Ryan Wanner <Ryan.Wanner@microchip.com>

Add support for LCD controller node

Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
---
 arch/arm/boot/dts/microchip/sama7d65.dtsi | 26 +++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm/boot/dts/microchip/sama7d65.dtsi b/arch/arm/boot/dts/microchip/sama7d65.dtsi
index e21556f46384..b2fe76115aec 100644
--- a/arch/arm/boot/dts/microchip/sama7d65.dtsi
+++ b/arch/arm/boot/dts/microchip/sama7d65.dtsi
@@ -278,6 +278,32 @@ sdmmc1: mmc@e1208000 {
 			status = "disabled";
 		};
 
+		xlcdc: lcd-controller@e1400000{
+			compatible = "microchip,sama7d65-xlcdc";
+			reg = <0xe1400000 0x2000>;
+			interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&pmc PMC_TYPE_PERIPHERAL 56>, <&pmc PMC_TYPE_GCK 56>, <&clk32k 1>;
+			clock-names = "periph_clk", "sys_clk", "slow_clk";
+			status = "disabled";
+
+			display-controller {
+				compatible = "atmel,hlcdc-display-controller";
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					#address-cells = <1>;
+					#size-cells = <0>;
+				};
+			};
+
+			pwm {
+				compatible = "atmel,hlcdc-pwm";
+				#pwm-cells = <3>;
+			};
+		};
+
 		aes: crypto@e1600000 {
 			compatible = "microchip,sama7d65-aes", "atmel,at91sam9g46-aes";
 			reg = <0xe1600000 0x100>;
-- 
2.25.1

[PATCH 2/6] dt-bindings: display: bridge: microchip,sam9x75-lvds: document SAMA7D65 binding

[Manikandan Muralidharan]

Update the microchip LVDS bridge device tree bindings to support the
SAMA7D65 SoC LVDS controller

Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
---
 .../bindings/display/bridge/microchip,sam9x75-lvds.yaml     | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-lvds.yaml b/Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-lvds.yaml
index 862ef441ac9f..669ef2393659 100644
--- a/Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-lvds.yaml
+++ b/Documentation/devicetree/bindings/display/bridge/microchip,sam9x75-lvds.yaml
@@ -17,7 +17,11 @@ description:
 
 properties:
   compatible:
-    const: microchip,sam9x75-lvds
+    oneOf:
+      - const: microchip,sam9x75-lvds
+      - items:
+          - const: microchip,sama7d65-lvds
+          - const: microchip,sam9x75-lvds
 
   reg:
     maxItems: 1
-- 
2.25.1

[PATCH 3/6] ARM: dts: microchip: sama7d65: add LVDS controller

[Manikandan Muralidharan]

From: Ryan Wanner <Ryan.Wanner@microchip.com>

Add support for LVDS controller node

Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
---
 arch/arm/boot/dts/microchip/sama7d65.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/microchip/sama7d65.dtsi b/arch/arm/boot/dts/microchip/sama7d65.dtsi
index b2fe76115aec..8aa38f29082b 100644
--- a/arch/arm/boot/dts/microchip/sama7d65.dtsi
+++ b/arch/arm/boot/dts/microchip/sama7d65.dtsi
@@ -304,6 +304,15 @@ pwm {
 			};
 		};
 
+		lvdsc: lvds-controller@e1408000 {
+			compatible = "microchip,sama7d65-lvds", "microchip,sam9x75-lvds";
+			reg = <0xe1408000 0x100>;
+			interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&pmc PMC_TYPE_PERIPHERAL 104>;
+			clock-names = "pclk";
+			status = "disabled";
+		};
+
 		aes: crypto@e1600000 {
 			compatible = "microchip,sama7d65-aes", "atmel,at91sam9g46-aes";
 			reg = <0xe1600000 0x100>;
-- 
2.25.1

[PATCH 4/6] ARM: configs: at91: sama7: enable DRM hlcdc support

[Manikandan Muralidharan]

From: Ryan Wanner <Ryan.Wanner@microchip.com>

Add configs for DRM Atmel LCD Controller, Backlight and Simple Panel

Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
---
 arch/arm/configs/sama7_defconfig | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/configs/sama7_defconfig b/arch/arm/configs/sama7_defconfig
index e2ad9a05566f..c0671318bac4 100644
--- a/arch/arm/configs/sama7_defconfig
+++ b/arch/arm/configs/sama7_defconfig
@@ -133,6 +133,7 @@ CONFIG_GENERIC_ADC_THERMAL=y
 CONFIG_WATCHDOG=y
 CONFIG_SAMA5D4_WATCHDOG=y
 CONFIG_MFD_ATMEL_FLEXCOM=y
+CONFIG_MFD_ATMEL_HLCDC=y
 CONFIG_REGULATOR=y
 CONFIG_REGULATOR_FIXED_VOLTAGE=y
 CONFIG_REGULATOR_MCP16502=y
@@ -147,6 +148,11 @@ CONFIG_VIDEO_MICROCHIP_CSI2DC=y
 CONFIG_VIDEO_IMX219=m
 CONFIG_VIDEO_IMX274=m
 CONFIG_VIDEO_OV5647=m
+CONFIG_DRM=y
+CONFIG_DRM_ATMEL_HLCDC=y
+CONFIG_DRM_PANEL_SIMPLE=y
+CONFIG_BACKLIGHT_CLASS_DEVICE=y
+CONFIG_BACKLIGHT_PWM=y
 CONFIG_SOUND=y
 CONFIG_SND=y
 CONFIG_SND_SOC=y
@@ -197,6 +203,7 @@ CONFIG_AT91_SAMA5D2_ADC=y
 CONFIG_PAC1934=m
 CONFIG_PWM=y
 CONFIG_PWM_ATMEL=y
+CONFIG_PWM_ATMEL_HLCDC_PWM=y
 CONFIG_MCHP_EIC=y
 CONFIG_RESET_CONTROLLER=y
 CONFIG_NVMEM_MICROCHIP_OTPC=y
-- 
2.25.1

[PATCH 5/6] ARM: configs: at91: sama7: enable config for atmel maxtouch

[Manikandan Muralidharan]

From: Romain Sioen <romain.sioen@microchip.com>

Add config support to enable maxtouch capacitive touchscreen

Signed-off-by: Romain Sioen <romain.sioen@microchip.com>
Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
---
 arch/arm/configs/sama7_defconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/configs/sama7_defconfig b/arch/arm/configs/sama7_defconfig
index c0671318bac4..0f1a3abc4640 100644
--- a/arch/arm/configs/sama7_defconfig
+++ b/arch/arm/configs/sama7_defconfig
@@ -108,6 +108,8 @@ CONFIG_CAN_M_CAN_PLATFORM=y
 CONFIG_INPUT_EVDEV=y
 CONFIG_KEYBOARD_GPIO=y
 # CONFIG_INPUT_MOUSE is not set
+CONFIG_INPUT_TOUCHSCREEN=y
+CONFIG_TOUCHSCREEN_ATMEL_MXT=y
 CONFIG_LEGACY_PTY_COUNT=4
 CONFIG_SERIAL_ATMEL=y
 CONFIG_SERIAL_ATMEL_CONSOLE=y
-- 
2.25.1

[PATCH 6/6] ARM: configs: at91: sama7: enable LVDS serializer support

[Manikandan Muralidharan]

From: Aubin Constans <aubin.constans@microchip.com>

Add config support to enable LVDS serializer

Signed-off-by: Aubin Constans <aubin.constans@microchip.com>
Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
---
 arch/arm/configs/sama7_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/sama7_defconfig b/arch/arm/configs/sama7_defconfig
index 0f1a3abc4640..e52f671ccec4 100644
--- a/arch/arm/configs/sama7_defconfig
+++ b/arch/arm/configs/sama7_defconfig
@@ -152,6 +152,7 @@ CONFIG_VIDEO_IMX274=m
 CONFIG_VIDEO_OV5647=m
 CONFIG_DRM=y
 CONFIG_DRM_ATMEL_HLCDC=y
+CONFIG_DRM_MICROCHIP_LVDS_SERIALIZER=y
 CONFIG_DRM_PANEL_SIMPLE=y
 CONFIG_BACKLIGHT_CLASS_DEVICE=y
 CONFIG_BACKLIGHT_PWM=y
-- 
2.25.1

Re: [PATCH 2/6] dt-bindings: display: bridge: microchip,sam9x75-lvds: document SAMA7D65 binding

[Krzysztof Kozlowski]

On Wed, Feb 25, 2026 at 02:24:26PM +0530, Manikandan Muralidharan wrote:
> Update the microchip LVDS bridge device tree bindings to support the
> SAMA7D65 SoC LVDS controller
> 
> Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
> ---
>  .../bindings/display/bridge/microchip,sam9x75-lvds.yaml     | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
>

A nit, subject: drop second/last, redundant "binding". The
"dt-bindings" prefix is already stating that these are bindings.
See also:
https://elixir.bootlin.com/linux/v6.17-rc3/source/Documentation/devicetree/bindings/submitting-patches.rst#L18

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof

Re: [PATCH 3/6] ARM: dts: microchip: sama7d65: add LVDS controller

[Claudiu Beznea]

On 2/25/26 10:54, Manikandan Muralidharan wrote:
> From: Ryan Wanner <Ryan.Wanner@microchip.com>
> 
> Add support for LVDS controller node
> 
> Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
> Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>

Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>

Re: [PATCH 1/6] ARM: dts: microchip: sama7d65: add LCD controller

[Claudiu Beznea]

On 2/25/26 10:54, Manikandan Muralidharan wrote:
> From: Ryan Wanner <Ryan.Wanner@microchip.com>
> 
> Add support for LCD controller node
> 
> Signed-off-by: Ryan Wanner <Ryan.Wanner@microchip.com>
> Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>
> ---
>   arch/arm/boot/dts/microchip/sama7d65.dtsi | 26 +++++++++++++++++++++++
>   1 file changed, 26 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/microchip/sama7d65.dtsi b/arch/arm/boot/dts/microchip/sama7d65.dtsi
> index e21556f46384..b2fe76115aec 100644
> --- a/arch/arm/boot/dts/microchip/sama7d65.dtsi
> +++ b/arch/arm/boot/dts/microchip/sama7d65.dtsi
> @@ -278,6 +278,32 @@ sdmmc1: mmc@e1208000 {
>   			status = "disabled";
>   		};
>   
> +		xlcdc: lcd-controller@e1400000{

Missing a space here -------------------------^

I can adjust it while applying.

Other than that:

Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>

> +			compatible = "microchip,sama7d65-xlcdc";
> +			reg = <0xe1400000 0x2000>;
> +			interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
> +			clocks = <&pmc PMC_TYPE_PERIPHERAL 56>, <&pmc PMC_TYPE_GCK 56>, <&clk32k 1>;
> +			clock-names = "periph_clk", "sys_clk", "slow_clk";
> +			status = "disabled";
> +
> +			display-controller {
> +				compatible = "atmel,hlcdc-display-controller";
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +
> +				port@0 {
> +					reg = <0>;
> +					#address-cells = <1>;
> +					#size-cells = <0>;
> +				};
> +			};
> +
> +			pwm {
> +				compatible = "atmel,hlcdc-pwm";
> +				#pwm-cells = <3>;
> +			};
> +		};
> +
>   		aes: crypto@e1600000 {
>   			compatible = "microchip,sama7d65-aes", "atmel,at91sam9g46-aes";
>   			reg = <0xe1600000 0x100>;

Re: [PATCH 4/6] ARM: configs: at91: sama7: enable DRM hlcdc support

[Claudiu Beznea]

On 2/25/26 10:54, Manikandan Muralidharan wrote:
> From: Ryan Wanner<Ryan.Wanner@microchip.com>
> 
> Add configs for DRM Atmel LCD Controller, Backlight and Simple Panel
> 
> Signed-off-by: Ryan Wanner<Ryan.Wanner@microchip.com>
> Signed-off-by: Manikandan Muralidharan<manikandan.m@microchip.com>

Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>

Re: [PATCH 5/6] ARM: configs: at91: sama7: enable config for atmel maxtouch

[Claudiu Beznea]

On 2/25/26 10:54, Manikandan Muralidharan wrote:
> From: Romain Sioen <romain.sioen@microchip.com>
> 
> Add config support to enable maxtouch capacitive touchscreen
> 
> Signed-off-by: Romain Sioen <romain.sioen@microchip.com>
> Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>

Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>

Re: [PATCH 6/6] ARM: configs: at91: sama7: enable LVDS serializer support

[Claudiu Beznea]

On 2/25/26 10:54, Manikandan Muralidharan wrote:
> From: Aubin Constans <aubin.constans@microchip.com>
> 
> Add config support to enable LVDS serializer
> 
> Signed-off-by: Aubin Constans <aubin.constans@microchip.com>
> Signed-off-by: Manikandan Muralidharan <manikandan.m@microchip.com>

Reviewed-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>