[V4 1/3] dt-bindings: interconnect: Add EPSS L3 DT binding on SC7280

[V4 1/3] dt-bindings: interconnect: Add EPSS L3 DT binding on SC7280

[Odelu Kukatla]

Add Epoch Subsystem (EPSS) L3 interconnect provider binding on SC7280
SoCs.

Signed-off-by: Odelu Kukatla <okukatla@codeaurora.org>
---
 .../devicetree/bindings/interconnect/qcom,osm-l3.yaml          |  9 ++++++++-
 include/dt-bindings/interconnect/qcom,osm-l3.h                 | 10 +++++++++-
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml b/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml
index d6a95c3..9f67c8e 100644
--- a/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml
+++ b/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml
@@ -18,12 +18,19 @@ properties:
   compatible:
     enum:
       - qcom,sc7180-osm-l3
+      - qcom,sc7280-epss-l3
       - qcom,sdm845-osm-l3
       - qcom,sm8150-osm-l3
       - qcom,sm8250-epss-l3
 
   reg:
-    maxItems: 1
+    minItems: 1
+    maxItems: 4
+    items:
+      - description: OSM clock domain-0 base address and size
+      - description: OSM clock domain-1 base address and size
+      - description: OSM clock domain-2 base address and size
+      - description: OSM clock domain-3 base address and size
 
   clocks:
     items:
diff --git a/include/dt-bindings/interconnect/qcom,osm-l3.h b/include/dt-bindings/interconnect/qcom,osm-l3.h
index 61ef649..99534a5 100644
--- a/include/dt-bindings/interconnect/qcom,osm-l3.h
+++ b/include/dt-bindings/interconnect/qcom,osm-l3.h
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: GPL-2.0 */
 /*
- * Copyright (C) 2019 The Linux Foundation. All rights reserved.
+ * Copyright (C) 2019, 2021 The Linux Foundation. All rights reserved.
  */
 
 #ifndef __DT_BINDINGS_INTERCONNECT_QCOM_OSM_L3_H
@@ -11,5 +11,13 @@
 
 #define MASTER_EPSS_L3_APPS	0
 #define SLAVE_EPSS_L3_SHARED	1
+#define SLAVE_EPSS_L3_CPU0	2
+#define SLAVE_EPSS_L3_CPU1	3
+#define SLAVE_EPSS_L3_CPU2	4
+#define SLAVE_EPSS_L3_CPU3	5
+#define SLAVE_EPSS_L3_CPU4	6
+#define SLAVE_EPSS_L3_CPU5	7
+#define SLAVE_EPSS_L3_CPU6	8
+#define SLAVE_EPSS_L3_CPU7	9
 
 #endif
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

[V4 3/3] arm64: dts: qcom: sc7280: Add EPSS L3 interconnect provider

[Odelu Kukatla]

Add Epoch Subsystem (EPSS) L3 interconnect provider node on SC7280
SoCs.

Signed-off-by: Odelu Kukatla <okukatla@codeaurora.org>
---
 arch/arm64/boot/dts/qcom/sc7280.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 38a7f55..7690d7e 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -1153,6 +1153,15 @@
 			};
 		};
 
+		epss_l3: interconnect@18590000 {
+			compatible = "qcom,sc7280-epss-l3";
+			reg = <0 0x18590000 0 1000>, <0 0x18591000 0 0x100>,
+				<0 0x18592000 0 0x100>, <0 0x18593000 0 0x100>;
+			clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GCC_GPLL0>;
+			clock-names = "xo", "alternate";
+			#interconnect-cells = <1>;
+		};
+
 		clk_virt: interconnect {
 			compatible = "qcom,sc7280-clk-virt";
 			#interconnect-cells = <2>;
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

Re: [V4 3/3] arm64: dts: qcom: sc7280: Add EPSS L3 interconnect provider

[Stephen Boyd]

Quoting Odelu Kukatla (2021-06-18 04:28:54)
> Add Epoch Subsystem (EPSS) L3 interconnect provider node on SC7280
> SoCs.
>
> Signed-off-by: Odelu Kukatla <okukatla@codeaurora.org>
> ---
>  arch/arm64/boot/dts/qcom/sc7280.dtsi | 9 +++++++++
>  1 file changed, 9 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> index 38a7f55..7690d7e 100644
> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
> @@ -1153,6 +1153,15 @@
>                         };
>                 };
>
> +               epss_l3: interconnect@18590000 {
> +                       compatible = "qcom,sc7280-epss-l3";
> +                       reg = <0 0x18590000 0 1000>, <0 0x18591000 0 0x100>,
> +                               <0 0x18592000 0 0x100>, <0 0x18593000 0 0x100>;
> +                       clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc GCC_GPLL0>;
> +                       clock-names = "xo", "alternate";
> +                       #interconnect-cells = <1>;
> +               };

Is this inside the soc node? Because it should be but then the next node
is called 'interconnect' and has no address so that is probably outside
the soc node. Please put nodes with a reg property like this into the
soc node.

> +
>                 clk_virt: interconnect {
>                         compatible = "qcom,sc7280-clk-virt";
>                         #interconnect-cells = <2>;

Re: [V4 1/3] dt-bindings: interconnect: Add EPSS L3 DT binding on SC7280

[Stephen Boyd]

Quoting Odelu Kukatla (2021-06-18 04:28:52)
> Add Epoch Subsystem (EPSS) L3 interconnect provider binding on SC7280
> SoCs.
>
> Signed-off-by: Odelu Kukatla <okukatla@codeaurora.org>
> ---
>  .../devicetree/bindings/interconnect/qcom,osm-l3.yaml          |  9 ++++++++-
>  include/dt-bindings/interconnect/qcom,osm-l3.h                 | 10 +++++++++-
>  2 files changed, 17 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml b/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml
> index d6a95c3..9f67c8e 100644
> --- a/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml
> +++ b/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml
> @@ -18,12 +18,19 @@ properties:
>    compatible:
>      enum:
>        - qcom,sc7180-osm-l3
> +      - qcom,sc7280-epss-l3
>        - qcom,sdm845-osm-l3
>        - qcom,sm8150-osm-l3
>        - qcom,sm8250-epss-l3
>
>    reg:
> -    maxItems: 1
> +    minItems: 1
> +    maxItems: 4

Can we base this on the compatible string so that only sc7280-epss-l3
requires 4 items? and then the others require 1 reg property?

> +    items:
> +      - description: OSM clock domain-0 base address and size
> +      - description: OSM clock domain-1 base address and size
> +      - description: OSM clock domain-2 base address and size
> +      - description: OSM clock domain-3 base address and size
>
>    clocks:
>      items:

Re: [V4 1/3] dt-bindings: interconnect: Add EPSS L3 DT binding on SC7280

[okukatla]

Thanks Stephen for the reviews!

On 2021-07-09 04:52, Stephen Boyd wrote:
> Quoting Odelu Kukatla (2021-06-18 04:28:52)
>> Add Epoch Subsystem (EPSS) L3 interconnect provider binding on SC7280
>> SoCs.
>> 
>> Signed-off-by: Odelu Kukatla <okukatla@codeaurora.org>
>> ---
>>  .../devicetree/bindings/interconnect/qcom,osm-l3.yaml          |  9 
>> ++++++++-
>>  include/dt-bindings/interconnect/qcom,osm-l3.h                 | 10 
>> +++++++++-
>>  2 files changed, 17 insertions(+), 2 deletions(-)
>> 
>> diff --git 
>> a/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml 
>> b/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml
>> index d6a95c3..9f67c8e 100644
>> --- a/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml
>> +++ b/Documentation/devicetree/bindings/interconnect/qcom,osm-l3.yaml
>> @@ -18,12 +18,19 @@ properties:
>>    compatible:
>>      enum:
>>        - qcom,sc7180-osm-l3
>> +      - qcom,sc7280-epss-l3
>>        - qcom,sdm845-osm-l3
>>        - qcom,sm8150-osm-l3
>>        - qcom,sm8250-epss-l3
>> 
>>    reg:
>> -    maxItems: 1
>> +    minItems: 1
>> +    maxItems: 4
> 
> Can we base this on the compatible string so that only sc7280-epss-l3
> requires 4 items? and then the others require 1 reg property?
> 
Done, Addressing this in new revision.
>> +    items:
>> +      - description: OSM clock domain-0 base address and size
>> +      - description: OSM clock domain-1 base address and size
>> +      - description: OSM clock domain-2 base address and size
>> +      - description: OSM clock domain-3 base address and size
>> 
>>    clocks:
>>      items:

Re: [V4 3/3] arm64: dts: qcom: sc7280: Add EPSS L3 interconnect provider

[okukatla]

On 2021-07-09 04:34, Stephen Boyd wrote:
> Quoting Odelu Kukatla (2021-06-18 04:28:54)
>> Add Epoch Subsystem (EPSS) L3 interconnect provider node on SC7280
>> SoCs.
>> 
>> Signed-off-by: Odelu Kukatla <okukatla@codeaurora.org>
>> ---
>>  arch/arm64/boot/dts/qcom/sc7280.dtsi | 9 +++++++++
>>  1 file changed, 9 insertions(+)
>> 
>> diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi 
>> b/arch/arm64/boot/dts/qcom/sc7280.dtsi
>> index 38a7f55..7690d7e 100644
>> --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
>> @@ -1153,6 +1153,15 @@
>>                         };
>>                 };
>> 
>> +               epss_l3: interconnect@18590000 {
>> +                       compatible = "qcom,sc7280-epss-l3";
>> +                       reg = <0 0x18590000 0 1000>, <0 0x18591000 0 
>> 0x100>,
>> +                               <0 0x18592000 0 0x100>, <0 0x18593000 
>> 0 0x100>;
>> +                       clocks = <&rpmhcc RPMH_CXO_CLK>, <&gcc 
>> GCC_GPLL0>;
>> +                       clock-names = "xo", "alternate";
>> +                       #interconnect-cells = <1>;
>> +               };
> 
> Is this inside the soc node? Because it should be but then the next 
> node
> is called 'interconnect' and has no address so that is probably outside
> the soc node. Please put nodes with a reg property like this into the
> soc node.
> 
no, will move this into soc node in v5.
>> +
>>                 clk_virt: interconnect {
>>                         compatible = "qcom,sc7280-clk-virt";
>>                         #interconnect-cells = <2>;