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[PATCH V2 6/6] arm64: tegra: Add GTE nodes

Dipen Patel posted 6 patches 2 years, 11 months ago
There is a newer version of this series
[PATCH V2 6/6] arm64: tegra: Add GTE nodes
Posted by Dipen Patel 2 years, 11 months ago 
Add GTE nodes for the tegra234. Also modify AON GTE nodes for the
tegra194 to remove nvidia,slice property and add nvidia,gpio-controller
propertyto specify AON GPIO controller node so that GTE driver can
do namespace conversion between GPIO lines provided by the gpiolib
framework and hardware timestamping engine subsystem.

Signed-off-by: Dipen Patel <dipenp@nvidia.com>
---
 arch/arm64/boot/dts/nvidia/tegra194.dtsi |  3 +--
 arch/arm64/boot/dts/nvidia/tegra234.dtsi | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index 4afcbd60e144..4c92850b1ec4 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -1363,7 +1363,6 @@
 			reg = <0x3aa0000 0x10000>;
 			interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
 			nvidia,int-threshold = <1>;
-			nvidia,slices = <11>;
 			#timestamp-cells = <1>;
 			status = "okay";
 		};
@@ -1586,7 +1585,7 @@
 			reg = <0xc1e0000 0x10000>;
 			interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
 			nvidia,int-threshold = <1>;
-			nvidia,slices = <3>;
+			nvidia,gpio-controller = <&gpio_aon>;
 			#timestamp-cells = <1>;
 			status = "okay";
 		};
diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
index eaf05ee9acd1..4a87490c5fd4 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -1086,6 +1086,15 @@
 			clock-names = "fuse";
 		};
 
+		hte_lic: hardware-timestamp@3aa0000 {
+			compatible = "nvidia,tegra234-gte-lic";
+			reg = <0x3aa0000 0x10000>;
+			interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+			nvidia,int-threshold = <1>;
+			#timestamp-cells = <1>;
+			status = "okay";
+		};
+
 		hsp_top0: hsp@3c00000 {
 			compatible = "nvidia,tegra234-hsp", "nvidia,tegra194-hsp";
 			reg = <0x03c00000 0xa0000>;
@@ -1603,6 +1612,16 @@
 			#mbox-cells = <2>;
 		};
 
+		hte_aon: hardware-timestamp@c1e0000 {
+			compatible = "nvidia,tegra234-gte-aon";
+			reg = <0xc1e0000 0x10000>;
+			interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
+			nvidia,int-threshold = <1>;
+			nvidia,gpio-controller = <&gpio_aon>;
+			#timestamp-cells = <1>;
+			status = "okay";
+		};
+
 		gen2_i2c: i2c@c240000 {
 			compatible = "nvidia,tegra194-i2c";
 			reg = <0xc240000 0x100>;
-- 
2.17.1
Re: [PATCH V2 6/6] arm64: tegra: Add GTE nodes
Posted by Krzysztof Kozlowski 2 years, 11 months ago 
On 14/02/2023 12:55, Dipen Patel wrote:
> Add GTE nodes for the tegra234. Also modify AON GTE nodes for the
> tegra194 to remove nvidia,slice property and add nvidia,gpio-controller
> propertyto specify AON GPIO controller node so that GTE driver can
> do namespace conversion between GPIO lines provided by the gpiolib
> framework and hardware timestamping engine subsystem.
> 
> Signed-off-by: Dipen Patel <dipenp@nvidia.com>
> ---
>  arch/arm64/boot/dts/nvidia/tegra194.dtsi |  3 +--
>  arch/arm64/boot/dts/nvidia/tegra234.dtsi | 19 +++++++++++++++++++
>  2 files changed, 20 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> index 4afcbd60e144..4c92850b1ec4 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> +++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
> @@ -1363,7 +1363,6 @@
>  			reg = <0x3aa0000 0x10000>;
>  			interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
>  			nvidia,int-threshold = <1>;
> -			nvidia,slices = <11>;
>  			#timestamp-cells = <1>;
>  			status = "okay";
>  		};
> @@ -1586,7 +1585,7 @@
>  			reg = <0xc1e0000 0x10000>;
>  			interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
>  			nvidia,int-threshold = <1>;
> -			nvidia,slices = <3>;
> +			nvidia,gpio-controller = <&gpio_aon>;
>  			#timestamp-cells = <1>;
>  			status = "okay";
>  		};
> diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
> index eaf05ee9acd1..4a87490c5fd4 100644
> --- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
> +++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
> @@ -1086,6 +1086,15 @@
>  			clock-names = "fuse";
>  		};
>  
> +		hte_lic: hardware-timestamp@3aa0000 {
> +			compatible = "nvidia,tegra234-gte-lic";
> +			reg = <0x3aa0000 0x10000>;
> +			interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
> +			nvidia,int-threshold = <1>;
> +			#timestamp-cells = <1>;
> +			status = "okay";

Why do you need status? It's okay by default.

> +		};
> +
>  		hsp_top0: hsp@3c00000 {
>  			compatible = "nvidia,tegra234-hsp", "nvidia,tegra194-hsp";
>  			reg = <0x03c00000 0xa0000>;
> @@ -1603,6 +1612,16 @@
>  			#mbox-cells = <2>;
>  		};
>  
> +		hte_aon: hardware-timestamp@c1e0000 {
> +			compatible = "nvidia,tegra234-gte-aon";
> +			reg = <0xc1e0000 0x10000>;
> +			interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
> +			nvidia,int-threshold = <1>;
> +			nvidia,gpio-controller = <&gpio_aon>;
> +			#timestamp-cells = <1>;
> +			status = "okay";


Also here

Best regards,
Krzysztof
Re: [PATCH V2 6/6] arm64: tegra: Add GTE nodes
Posted by Dipen Patel 2 years, 11 months ago 
On 2/16/23 6:18 AM, Krzysztof Kozlowski wrote:
> On 14/02/2023 12:55, Dipen Patel wrote:
>> Add GTE nodes for the tegra234. Also modify AON GTE nodes for the
>> tegra194 to remove nvidia,slice property and add nvidia,gpio-controller
>> propertyto specify AON GPIO controller node so that GTE driver can
>> do namespace conversion between GPIO lines provided by the gpiolib
>> framework and hardware timestamping engine subsystem.
>>
>> Signed-off-by: Dipen Patel <dipenp@nvidia.com>
>> ---
>>  arch/arm64/boot/dts/nvidia/tegra194.dtsi |  3 +--
>>  arch/arm64/boot/dts/nvidia/tegra234.dtsi | 19 +++++++++++++++++++
>>  2 files changed, 20 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
>> index 4afcbd60e144..4c92850b1ec4 100644
>> --- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
>> +++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
>> @@ -1363,7 +1363,6 @@
>>  			reg = <0x3aa0000 0x10000>;
>>  			interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
>>  			nvidia,int-threshold = <1>;
>> -			nvidia,slices = <11>;
>>  			#timestamp-cells = <1>;
>>  			status = "okay";
>>  		};
>> @@ -1586,7 +1585,7 @@
>>  			reg = <0xc1e0000 0x10000>;
>>  			interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
>>  			nvidia,int-threshold = <1>;
>> -			nvidia,slices = <3>;
>> +			nvidia,gpio-controller = <&gpio_aon>;
>>  			#timestamp-cells = <1>;
>>  			status = "okay";
>>  		};
>> diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
>> index eaf05ee9acd1..4a87490c5fd4 100644
>> --- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
>> +++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
>> @@ -1086,6 +1086,15 @@
>>  			clock-names = "fuse";
>>  		};
>>  
>> +		hte_lic: hardware-timestamp@3aa0000 {
>> +			compatible = "nvidia,tegra234-gte-lic";
>> +			reg = <0x3aa0000 0x10000>;
>> +			interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
>> +			nvidia,int-threshold = <1>;
>> +			#timestamp-cells = <1>;
>> +			status = "okay";
> 
> Why do you need status? It's okay by default.
what's harm of having to explicitly mentioned? I can see status = okay in this dtsi file
for other nodes as well and was just following that.
> 
>> +		};
>> +
>>  		hsp_top0: hsp@3c00000 {
>>  			compatible = "nvidia,tegra234-hsp", "nvidia,tegra194-hsp";
>>  			reg = <0x03c00000 0xa0000>;
>> @@ -1603,6 +1612,16 @@
>>  			#mbox-cells = <2>;
>>  		};
>>  
>> +		hte_aon: hardware-timestamp@c1e0000 {
>> +			compatible = "nvidia,tegra234-gte-aon";
>> +			reg = <0xc1e0000 0x10000>;
>> +			interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
>> +			nvidia,int-threshold = <1>;
>> +			nvidia,gpio-controller = <&gpio_aon>;
>> +			#timestamp-cells = <1>;
>> +			status = "okay";
> 
> 
> Also here
> 
> Best regards,
> Krzysztof
>
Re: [PATCH V2 6/6] arm64: tegra: Add GTE nodes
Posted by Krzysztof Kozlowski 2 years, 11 months ago 
On 08/03/2023 21:13, Dipen Patel wrote:
> On 2/16/23 6:18 AM, Krzysztof Kozlowski wrote:
>> On 14/02/2023 12:55, Dipen Patel wrote:
>>> Add GTE nodes for the tegra234. Also modify AON GTE nodes for the
>>> tegra194 to remove nvidia,slice property and add nvidia,gpio-controller
>>> propertyto specify AON GPIO controller node so that GTE driver can
>>> do namespace conversion between GPIO lines provided by the gpiolib
>>> framework and hardware timestamping engine subsystem.
>>>
>>> Signed-off-by: Dipen Patel <dipenp@nvidia.com>
>>> ---
>>>  arch/arm64/boot/dts/nvidia/tegra194.dtsi |  3 +--
>>>  arch/arm64/boot/dts/nvidia/tegra234.dtsi | 19 +++++++++++++++++++
>>>  2 files changed, 20 insertions(+), 2 deletions(-)
>>>
>>> diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
>>> index 4afcbd60e144..4c92850b1ec4 100644
>>> --- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
>>> +++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
>>> @@ -1363,7 +1363,6 @@
>>>  			reg = <0x3aa0000 0x10000>;
>>>  			interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
>>>  			nvidia,int-threshold = <1>;
>>> -			nvidia,slices = <11>;
>>>  			#timestamp-cells = <1>;
>>>  			status = "okay";
>>>  		};
>>> @@ -1586,7 +1585,7 @@
>>>  			reg = <0xc1e0000 0x10000>;
>>>  			interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
>>>  			nvidia,int-threshold = <1>;
>>> -			nvidia,slices = <3>;
>>> +			nvidia,gpio-controller = <&gpio_aon>;
>>>  			#timestamp-cells = <1>;
>>>  			status = "okay";
>>>  		};
>>> diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
>>> index eaf05ee9acd1..4a87490c5fd4 100644
>>> --- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
>>> +++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
>>> @@ -1086,6 +1086,15 @@
>>>  			clock-names = "fuse";
>>>  		};
>>>  
>>> +		hte_lic: hardware-timestamp@3aa0000 {
>>> +			compatible = "nvidia,tegra234-gte-lic";
>>> +			reg = <0x3aa0000 0x10000>;
>>> +			interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
>>> +			nvidia,int-threshold = <1>;
>>> +			#timestamp-cells = <1>;
>>> +			status = "okay";
>>
>> Why do you need status? It's okay by default.
> what's harm of having to explicitly mentioned? 

Because useless code is not helping any review. We do not add other
useless properties, or shall we add them?

>I can see status = okay in this dtsi file
> for other nodes as well and was just following that.

So if you see a bug somewhere, you also duplicate it in your code?


Best regards,
Krzysztof

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