[PATCH] arm64: dts: cavium: Fix GICv3 ITS nodes

[PATCH] arm64: dts: cavium: Fix GICv3 ITS nodes

[Rob Herring]

The GICv3 ITS is an MSI controller, therefore its node name should be
'msi-controller'. The ITS node is also expected to have '#msi-cells'.
Add it on Thunder as there are no users. Thunder2 uses 'msi-parent', but
Robin says that should be 'msi-map' instead and I'm not sure what's
correct for it.

The unit-addresses of both the ITS and main GIC node on thunder2 are also
wrong, so fix them while we're here.

Cc: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
---
 arch/arm64/boot/dts/cavium/thunder-88xx.dtsi  | 3 ++-
 arch/arm64/boot/dts/cavium/thunder2-99xx.dtsi | 4 ++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/cavium/thunder-88xx.dtsi b/arch/arm64/boot/dts/cavium/thunder-88xx.dtsi
index e0a71795261b..8ad31dee11a3 100644
--- a/arch/arm64/boot/dts/cavium/thunder-88xx.dtsi
+++ b/arch/arm64/boot/dts/cavium/thunder-88xx.dtsi
@@ -389,9 +389,10 @@ gic0: interrupt-controller@8010,00000000 {
 			      <0x8010 0x80000000 0x0 0x600000>; /* GICR */
 			interrupts = <1 9 0xf04>;
 
-			its: gic-its@8010,00020000 {
+			its: msi-controller@801000020000 {
 				compatible = "arm,gic-v3-its";
 				msi-controller;
+				#msi-cells = <1>;
 				reg = <0x8010 0x20000 0x0 0x200000>;
 			};
 		};
diff --git a/arch/arm64/boot/dts/cavium/thunder2-99xx.dtsi b/arch/arm64/boot/dts/cavium/thunder2-99xx.dtsi
index dfb41705a9a9..3419bd252696 100644
--- a/arch/arm64/boot/dts/cavium/thunder2-99xx.dtsi
+++ b/arch/arm64/boot/dts/cavium/thunder2-99xx.dtsi
@@ -55,7 +55,7 @@ psci {
 		method = "smc";
 	};
 
-	gic: interrupt-controller@400080000 {
+	gic: interrupt-controller@4000080000 {
 		compatible = "arm,gic-v3";
 		#interrupt-cells = <3>;
 		#address-cells = <2>;
@@ -67,7 +67,7 @@ gic: interrupt-controller@400080000 {
 		      <0x04 0x01000000 0x0 0x1000000>;	/* GICR */
 		interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
 
-		gicits: gic-its@40010000 {
+		gicits: msi-controller@4000100000 {
 			compatible = "arm,gic-v3-its";
 			msi-controller;
 			reg = <0x04 0x00100000 0x0 0x20000>;	/* GIC ITS */
-- 
2.39.1

Re: [PATCH] arm64: dts: cavium: Fix GICv3 ITS nodes

[Krzysztof Kozlowski]

On Wed, 8 Feb 2023 12:55:06 -0600, Rob Herring wrote:
> The GICv3 ITS is an MSI controller, therefore its node name should be
> 'msi-controller'. The ITS node is also expected to have '#msi-cells'.
> Add it on Thunder as there are no users. Thunder2 uses 'msi-parent', but
> Robin says that should be 'msi-map' instead and I'm not sure what's
> correct for it.
> 
> The unit-addresses of both the ITS and main GIC node on thunder2 are also
> wrong, so fix them while we're here.
> 
> [...]

Applied, thanks! Let me know if someone else wants to take this.

[1/1] arm64: dts: cavium: Fix GICv3 ITS nodes
      https://git.kernel.org/krzk/linux-dt/c/d2e5c16f6c86901040f3bb6b40d1a01ccf1a21b0

Best regards,
-- 
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Re: [PATCH] arm64: dts: cavium: Fix GICv3 ITS nodes

[Krzysztof Kozlowski]

On 16/03/2023 20:51, Rob Herring wrote:
> On Wed, Feb 8, 2023 at 12:55 PM Rob Herring <robh@kernel.org> wrote:
>>
>> The GICv3 ITS is an MSI controller, therefore its node name should be
>> 'msi-controller'. The ITS node is also expected to have '#msi-cells'.
>> Add it on Thunder as there are no users. Thunder2 uses 'msi-parent', but
>> Robin says that should be 'msi-map' instead and I'm not sure what's
>> correct for it.
>>
>> The unit-addresses of both the ITS and main GIC node on thunder2 are also
>> wrong, so fix them while we're here.
>>
>> Cc: Robin Murphy <robin.murphy@arm.com>
>> Signed-off-by: Rob Herring <robh@kernel.org>
>> ---
>>  arch/arm64/boot/dts/cavium/thunder-88xx.dtsi  | 3 ++-
>>  arch/arm64/boot/dts/cavium/thunder2-99xx.dtsi | 4 ++--
>>  2 files changed, 4 insertions(+), 3 deletions(-)
> 
> Ping!
> 
> Should we remove these platforms instead if they aren't maintained?

5 weeks should be enough... Applied with my other cleanups.

Best regards,
Krzysztof