[PATCH 0/3] arm: bcmbca: add bcm6846 SoC support

[PATCH 0/3] arm: bcmbca: add bcm6846 SoC support

[William Zhang]

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This change adds the basic support for Broadcom's ARMv7 based
Broadband SoC BCM6846. The initial support includes a bare-bone dts
for dual core ARM A7 with a Broadcom uart.


William Zhang (3):
  dt-bindings: arm: add BCM6846 SoC to device tree binding document
  ARM: dts: add dts files for bcmbca SoC bcm6846
  MAINTAINERS: add bcm6846 to bcmbca arch entry

 .../bindings/arm/bcm/brcm,bcmbca.yaml         |   6 +
 MAINTAINERS                                   |   3 +-
 arch/arm/boot/dts/Makefile                    |   3 +-
 arch/arm/boot/dts/bcm6846.dtsi                | 103 ++++++++++++++++++
 arch/arm/boot/dts/bcm96846.dts                |  30 +++++
 5 files changed, 142 insertions(+), 3 deletions(-)
 create mode 100644 arch/arm/boot/dts/bcm6846.dtsi
 create mode 100644 arch/arm/boot/dts/bcm96846.dts

-- 
2.17.1


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[PATCH 0/3] arm: bcmbca: add bcm6846 SoC support

[William Zhang]

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This change adds the basic support for Broadcom's ARMv7 based
Broadband SoC BCM6846. The initial support includes a bare-bone dts
for dual core ARM A7 with a Broadcom uart.


William Zhang (3):
  dt-bindings: arm: add BCM6846 SoC to device tree binding document
  ARM: dts: add dts files for bcmbca SoC bcm6846
  MAINTAINERS: add bcm6846 to bcmbca arch entry

 .../bindings/arm/bcm/brcm,bcmbca.yaml         |   6 +
 MAINTAINERS                                   |   3 +-
 arch/arm/boot/dts/Makefile                    |   3 +-
 arch/arm/boot/dts/bcm6846.dtsi                | 103 ++++++++++++++++++
 arch/arm/boot/dts/bcm96846.dts                |  30 +++++
 5 files changed, 142 insertions(+), 3 deletions(-)
 create mode 100644 arch/arm/boot/dts/bcm6846.dtsi
 create mode 100644 arch/arm/boot/dts/bcm96846.dts

-- 
2.17.1


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[PATCH 1/3] dt-bindings: arm: add BCM6846 SoC to device tree binding document

[William Zhang]

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Add BCM6846 SoC device tree description to bcmbca binding document.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
---

 Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
index 5fb455840417..93eb30422dd6 100644
--- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
@@ -27,6 +27,12 @@ properties:
               - brcm,bcm947622
           - const: brcm,bcm47622
           - const: brcm,bcmbca
+      - description: BCM6846 based boards
+        items:
+          - enum:
+              - brcm,bcm96846
+          - const: brcm,bcm6846
+          - const: brcm,bcmbca
 
 additionalProperties: true
 
-- 
2.17.1


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[PATCH 1/3] dt-bindings: arm: add BCM6846 SoC to device tree binding document

[William Zhang]

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Add BCM6846 SoC device tree description to bcmbca binding document.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
---

 Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
index 5fb455840417..93eb30422dd6 100644
--- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
@@ -27,6 +27,12 @@ properties:
               - brcm,bcm947622
           - const: brcm,bcm47622
           - const: brcm,bcmbca
+      - description: BCM6846 based boards
+        items:
+          - enum:
+              - brcm,bcm96846
+          - const: brcm,bcm6846
+          - const: brcm,bcmbca
 
 additionalProperties: true
 
-- 
2.17.1


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[PATCH 2/3] ARM: dts: add dts files for bcmbca SoC bcm6846

[William Zhang]

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Add dts for ARMv7 based broadband SoC BCM6846. bcm6846.dtsi is the
SoC description dts header and bcm96846.dts is a simple dts file for
Broadcom BCM96846 Reference board that only enable the UART port.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
---

 arch/arm/boot/dts/Makefile     |   3 +-
 arch/arm/boot/dts/bcm6846.dtsi | 103 +++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/bcm96846.dts |  30 ++++++++++
 3 files changed, 135 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/bcm6846.dtsi
 create mode 100644 arch/arm/boot/dts/bcm96846.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index edfbedaa6168..b4143031860b 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -182,7 +182,8 @@ dtb-$(CONFIG_ARCH_BERLIN) += \
 dtb-$(CONFIG_ARCH_BRCMSTB) += \
 	bcm7445-bcm97445svmb.dtb
 dtb-$(CONFIG_ARCH_BCMBCA) += \
-	bcm947622.dtb
+	bcm947622.dtb \
+	bcm96846.dtb
 dtb-$(CONFIG_ARCH_CLPS711X) += \
 	ep7211-edb7211.dtb
 dtb-$(CONFIG_ARCH_DAVINCI) += \
diff --git a/arch/arm/boot/dts/bcm6846.dtsi b/arch/arm/boot/dts/bcm6846.dtsi
new file mode 100644
index 000000000000..e610c102498f
--- /dev/null
+++ b/arch/arm/boot/dts/bcm6846.dtsi
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2022 Broadcom Ltd.
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	compatible = "brcm,bcm6846", "brcm,bcmbca";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	interrupt-parent = <&gic>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		CA7_0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <0x0>;
+			next-level-cache = <&L2_0>;
+			enable-method = "psci";
+		};
+
+		CA7_1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <0x1>;
+			next-level-cache = <&L2_0>;
+			enable-method = "psci";
+		};
+
+		L2_0: l2-cache0 {
+			compatible = "cache";
+		};
+	};
+
+	timer {
+		compatible = "arm,armv7-timer";
+		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+		arm,cpu-registers-not-fw-configured;
+	};
+
+	pmu: pmu {
+		compatible = "arm,cortex-a7-pmu";
+		interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+			<GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-affinity = <&CA7_0>, <&CA7_1>;
+	};
+
+	clocks: clocks {
+		periph_clk: periph-clk {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <200000000>;
+		};
+	};
+
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+		cpu_off = <1>;
+		cpu_on = <2>;
+	};
+
+	axi@81000000 {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0 0x81000000 0x4000>;
+
+		gic: interrupt-controller@1000 {
+			compatible = "arm,cortex-a7-gic";
+			#interrupt-cells = <3>;
+			#address-cells = <0>;
+			interrupt-controller;
+			reg = <0x1000 0x1000>,
+				<0x2000 0x2000>;
+		};
+	};
+
+	bus@ff800000 {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0 0xff800000 0x800000>;
+
+		uart0: serial@640 {
+			compatible = "brcm,bcm6345-uart";
+			reg = <0x640 0x1b>;
+			interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&periph_clk>;
+			clock-names = "refclk";
+			status = "disabled";
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/bcm96846.dts b/arch/arm/boot/dts/bcm96846.dts
new file mode 100644
index 000000000000..c70ebccabc19
--- /dev/null
+++ b/arch/arm/boot/dts/bcm96846.dts
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2022 Broadcom Ltd.
+ */
+
+/dts-v1/;
+
+#include "bcm6846.dtsi"
+
+/ {
+	model = "Broadcom BCM96846 Reference Board";
+	compatible = "brcm,bcm96846", "brcm,bcm6846", "brcm,bcmbca";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x08000000>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
-- 
2.17.1


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[PATCH 2/3] ARM: dts: add dts files for bcmbca SoC bcm6846

[William Zhang]

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Add dts for ARMv7 based broadband SoC BCM6846. bcm6846.dtsi is the
SoC description dts header and bcm96846.dts is a simple dts file for
Broadcom BCM96846 Reference board that only enable the UART port.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
---

 arch/arm/boot/dts/Makefile     |   3 +-
 arch/arm/boot/dts/bcm6846.dtsi | 103 +++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/bcm96846.dts |  30 ++++++++++
 3 files changed, 135 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/bcm6846.dtsi
 create mode 100644 arch/arm/boot/dts/bcm96846.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index edfbedaa6168..b4143031860b 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -182,7 +182,8 @@ dtb-$(CONFIG_ARCH_BERLIN) += \
 dtb-$(CONFIG_ARCH_BRCMSTB) += \
 	bcm7445-bcm97445svmb.dtb
 dtb-$(CONFIG_ARCH_BCMBCA) += \
-	bcm947622.dtb
+	bcm947622.dtb \
+	bcm96846.dtb
 dtb-$(CONFIG_ARCH_CLPS711X) += \
 	ep7211-edb7211.dtb
 dtb-$(CONFIG_ARCH_DAVINCI) += \
diff --git a/arch/arm/boot/dts/bcm6846.dtsi b/arch/arm/boot/dts/bcm6846.dtsi
new file mode 100644
index 000000000000..e610c102498f
--- /dev/null
+++ b/arch/arm/boot/dts/bcm6846.dtsi
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2022 Broadcom Ltd.
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	compatible = "brcm,bcm6846", "brcm,bcmbca";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	interrupt-parent = <&gic>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		CA7_0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <0x0>;
+			next-level-cache = <&L2_0>;
+			enable-method = "psci";
+		};
+
+		CA7_1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <0x1>;
+			next-level-cache = <&L2_0>;
+			enable-method = "psci";
+		};
+
+		L2_0: l2-cache0 {
+			compatible = "cache";
+		};
+	};
+
+	timer {
+		compatible = "arm,armv7-timer";
+		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			<GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			<GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			<GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+		arm,cpu-registers-not-fw-configured;
+	};
+
+	pmu: pmu {
+		compatible = "arm,cortex-a7-pmu";
+		interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+			<GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-affinity = <&CA7_0>, <&CA7_1>;
+	};
+
+	clocks: clocks {
+		periph_clk: periph-clk {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <200000000>;
+		};
+	};
+
+	psci {
+		compatible = "arm,psci-0.2";
+		method = "smc";
+		cpu_off = <1>;
+		cpu_on = <2>;
+	};
+
+	axi@81000000 {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0 0x81000000 0x4000>;
+
+		gic: interrupt-controller@1000 {
+			compatible = "arm,cortex-a7-gic";
+			#interrupt-cells = <3>;
+			#address-cells = <0>;
+			interrupt-controller;
+			reg = <0x1000 0x1000>,
+				<0x2000 0x2000>;
+		};
+	};
+
+	bus@ff800000 {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges = <0 0xff800000 0x800000>;
+
+		uart0: serial@640 {
+			compatible = "brcm,bcm6345-uart";
+			reg = <0x640 0x1b>;
+			interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&periph_clk>;
+			clock-names = "refclk";
+			status = "disabled";
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/bcm96846.dts b/arch/arm/boot/dts/bcm96846.dts
new file mode 100644
index 000000000000..c70ebccabc19
--- /dev/null
+++ b/arch/arm/boot/dts/bcm96846.dts
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2022 Broadcom Ltd.
+ */
+
+/dts-v1/;
+
+#include "bcm6846.dtsi"
+
+/ {
+	model = "Broadcom BCM96846 Reference Board";
+	compatible = "brcm,bcm96846", "brcm,bcm6846", "brcm,bcmbca";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x08000000>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
-- 
2.17.1


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[PATCH 3/3] MAINTAINERS: add bcm6846 to bcmbca arch entry

[William Zhang]

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Add bcm6846 related files to BCMBCA ARCH maintainer list entry

Signed-off-by: William Zhang <william.zhang@broadcom.com>
---

 MAINTAINERS | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 4fdbbd6c1984..29770e7cf389 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3774,10 +3774,9 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 T:	git git://github.com/broadcom/stblinux.git
 F:	Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
-F:	arch/arm/boot/dts/bcm47622.dtsi
-F:	arch/arm/boot/dts/bcm947622.dts
 N:	bcmbca
 N:	bcm[9]?47622
+N:	bcm[9]?6846
 
 BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE
 M:	Nicolas Saenz Julienne <nsaenz@kernel.org>
-- 
2.17.1


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[PATCH 3/3] MAINTAINERS: add bcm6846 to bcmbca arch entry

[William Zhang]

[-- Attachment #1.1: Type: text/plain, Size: 752 bytes --]

Add bcm6846 related files to BCMBCA ARCH maintainer list entry

Signed-off-by: William Zhang <william.zhang@broadcom.com>
---

 MAINTAINERS | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 4fdbbd6c1984..29770e7cf389 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3774,10 +3774,9 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 T:	git git://github.com/broadcom/stblinux.git
 F:	Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
-F:	arch/arm/boot/dts/bcm47622.dtsi
-F:	arch/arm/boot/dts/bcm947622.dts
 N:	bcmbca
 N:	bcm[9]?47622
+N:	bcm[9]?6846
 
 BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE
 M:	Nicolas Saenz Julienne <nsaenz@kernel.org>
-- 
2.17.1


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Re: [PATCH 1/3] dt-bindings: arm: add BCM6846 SoC to device tree binding document

[Krzysztof Kozlowski]

On 25/05/2022 02:32, William Zhang wrote:
> Add BCM6846 SoC device tree description to bcmbca binding document.
> 
> Signed-off-by: William Zhang <william.zhang@broadcom.com>
> ---
> 
>  Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
> index 5fb455840417..93eb30422dd6 100644
> --- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
> +++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
> @@ -27,6 +27,12 @@ properties:
>                - brcm,bcm947622
>            - const: brcm,bcm47622
>            - const: brcm,bcmbca

New line here.

With that:

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

Re: [PATCH 1/3] dt-bindings: arm: add BCM6846 SoC to device tree binding document

[Krzysztof Kozlowski]

On 25/05/2022 02:32, William Zhang wrote:
> Add BCM6846 SoC device tree description to bcmbca binding document.
> 
> Signed-off-by: William Zhang <william.zhang@broadcom.com>
> ---
> 
>  Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
> index 5fb455840417..93eb30422dd6 100644
> --- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
> +++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
> @@ -27,6 +27,12 @@ properties:
>                - brcm,bcm947622
>            - const: brcm,bcm47622
>            - const: brcm,bcmbca

New line here.

With that:

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

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Re: [PATCH 1/3] dt-bindings: arm: add BCM6846 SoC to device tree binding document

[William Zhang]

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On 5/25/22 04:14, Krzysztof Kozlowski wrote:
> On 25/05/2022 02:32, William Zhang wrote:
>> Add BCM6846 SoC device tree description to bcmbca binding document.
>>
>> Signed-off-by: William Zhang <william.zhang@broadcom.com>
>> ---
>>
>>   Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml | 6 ++++++
>>   1 file changed, 6 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
>> index 5fb455840417..93eb30422dd6 100644
>> --- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
>> +++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
>> @@ -27,6 +27,12 @@ properties:
>>                 - brcm,bcm947622
>>             - const: brcm,bcm47622
>>             - const: brcm,bcmbca
> 
> New line here.
> 
> With that:
> 
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> 
Updated in v2.  Thanks!

> Best regards,
> Krzysztof

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