[PATCH 1/7] arm64: dts: ti: k3-j721s2-main: Add interrupts property

Yemike Abhilash Chandra posted 7 patches 2 months, 3 weeks ago
There is a newer version of this series
[PATCH 1/7] arm64: dts: ti: k3-j721s2-main: Add interrupts property
Posted by Yemike Abhilash Chandra 2 months, 3 weeks ago
Add interrupts property for CDNS CSI2RX. Interrupt IDs are taken from the
J721S2 TRM [0].

Interrupt Line      | Source Interrupt
--------------------|----------------------------
GIC500SS_SPI_IN_153 | CSI_RX_IF1_CSI_ERR_IRQ_0
GIC500SS_SPI_IN_152 | CSI_RX_IF1_CSI_IRQ_0
GIC500SS_SPI_IN_157 | CSI_RX_IF2_CSI_ERR_IRQ_0
GIC500SS_SPI_IN_156 | CSI_RX_IF2_CSI_IRQ_0

[0]: https://www.ti.com/lit/zip/spruj28

Signed-off-by: Yemike Abhilash Chandra <y-abhilashchandra@ti.com>
---
 arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
index 62f45377a2c9..6f32a2b0c40c 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
@@ -1248,6 +1248,9 @@ ti_csi2rx0: ticsi2rx@4500000 {
 		cdns_csi2rx0: csi-bridge@4504000 {
 			compatible = "ti,j721e-csi2rx", "cdns,csi2rx";
 			reg = <0x00 0x04504000 0x00 0x1000>;
+			interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "error_irq", "irq";
 			clocks = <&k3_clks 38 3>, <&k3_clks 38 1>, <&k3_clks 38 3>,
 				<&k3_clks 38 3>, <&k3_clks 38 4>, <&k3_clks 38 4>;
 			clock-names = "sys_clk", "p_clk", "pixel_if0_clk",
@@ -1301,6 +1304,9 @@ ti_csi2rx1: ticsi2rx@4510000 {
 		cdns_csi2rx1: csi-bridge@4514000 {
 			compatible = "ti,j721e-csi2rx", "cdns,csi2rx";
 			reg = <0x00 0x04514000 0x00 0x1000>;
+			interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "error_irq", "irq";
 			clocks = <&k3_clks 39 3>, <&k3_clks 39 1>, <&k3_clks 39 3>,
 				<&k3_clks 39 3>, <&k3_clks 39 4>, <&k3_clks 39 4>;
 			clock-names = "sys_clk", "p_clk", "pixel_if0_clk",
-- 
2.34.1
Re: [PATCH 1/7] arm64: dts: ti: k3-j721s2-main: Add interrupts property
Posted by Kumar, Udit 2 months, 2 weeks ago
On 7/14/2025 2:57 PM, Yemike Abhilash Chandra wrote:
> Add interrupts property for CDNS CSI2RX. Interrupt IDs are taken from the
> J721S2 TRM [0].
>
> Interrupt Line      | Source Interrupt
> --------------------|----------------------------
> GIC500SS_SPI_IN_153 | CSI_RX_IF1_CSI_ERR_IRQ_0
> GIC500SS_SPI_IN_152 | CSI_RX_IF1_CSI_IRQ_0
> GIC500SS_SPI_IN_157 | CSI_RX_IF2_CSI_ERR_IRQ_0
> GIC500SS_SPI_IN_156 | CSI_RX_IF2_CSI_IRQ_0
>
> [0]: https://www.ti.com/lit/zip/spruj28
>
> Signed-off-by: Yemike Abhilash Chandra <y-abhilashchandra@ti.com>
> ---
>   arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 6 ++++++
>   1 file changed, 6 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
> index 62f45377a2c9..6f32a2b0c40c 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
> @@ -1248,6 +1248,9 @@ ti_csi2rx0: ticsi2rx@4500000 {
>   		cdns_csi2rx0: csi-bridge@4504000 {
>   			compatible = "ti,j721e-csi2rx", "cdns,csi2rx";
>   			reg = <0x00 0x04504000 0x00 0x1000>;
> +			interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>;

Just cosmetic thing, if you are doing v2 then consider 152 first , 
followed by 153.

Otherwise

Reviewed-by: Udit Kumar <u-kumar1@ti.com>

> +			interrupt-names = "error_irq", "irq";
>   			clocks = <&k3_clks 38 3>, <&k3_clks 38 1>, <&k3_clks 38 3>,
>   				<&k3_clks 38 3>, <&k3_clks 38 4>, <&k3_clks 38 4>;
>   			clock-names = "sys_clk", "p_clk", "pixel_if0_clk",
> @@ -1301,6 +1304,9 @@ ti_csi2rx1: ticsi2rx@4510000 {
>   		cdns_csi2rx1: csi-bridge@4514000 {
>   			compatible = "ti,j721e-csi2rx", "cdns,csi2rx";
>   			reg = <0x00 0x04514000 0x00 0x1000>;
> +			interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
> +				     <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>;
> +			interrupt-names = "error_irq", "irq";
>   			clocks = <&k3_clks 39 3>, <&k3_clks 39 1>, <&k3_clks 39 3>,
>   				<&k3_clks 39 3>, <&k3_clks 39 4>, <&k3_clks 39 4>;
>   			clock-names = "sys_clk", "p_clk", "pixel_if0_clk",
Re: [PATCH 1/7] arm64: dts: ti: k3-j721s2-main: Add interrupts property
Posted by Krzysztof Kozlowski 2 months, 2 weeks ago
On 21/07/2025 16:07, Kumar, Udit wrote:
>> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>> index 62f45377a2c9..6f32a2b0c40c 100644
>> --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>> @@ -1248,6 +1248,9 @@ ti_csi2rx0: ticsi2rx@4500000 {
>>   		cdns_csi2rx0: csi-bridge@4504000 {
>>   			compatible = "ti,j721e-csi2rx", "cdns,csi2rx";
>>   			reg = <0x00 0x04504000 0x00 0x1000>;
>> +			interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>,
>> +				     <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>;
> 
> Just cosmetic thing, if you are doing v2 then consider 152 first , 
> followed by 153.


No, you cannot just randomly change numbers or the order.


Best regards,
Krzysztof
Re: [PATCH 1/7] arm64: dts: ti: k3-j721s2-main: Add interrupts property
Posted by Kumar, Udit 2 months, 2 weeks ago
On 7/21/2025 7:39 PM, Krzysztof Kozlowski wrote:
> On 21/07/2025 16:07, Kumar, Udit wrote:
>>> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>>> index 62f45377a2c9..6f32a2b0c40c 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>>> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>>> @@ -1248,6 +1248,9 @@ ti_csi2rx0: ticsi2rx@4500000 {
>>>    		cdns_csi2rx0: csi-bridge@4504000 {
>>>    			compatible = "ti,j721e-csi2rx", "cdns,csi2rx";
>>>    			reg = <0x00 0x04504000 0x00 0x1000>;
>>> +			interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>,
>>> +				     <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>;
>> Just cosmetic thing, if you are doing v2 then consider 152 first ,
>> followed by 153.
>
> No, you cannot just randomly change numbers or the order.
>
To be precise both , interrupt-names and interrupts,

if this make sense to change.


> Best regards,
> Krzysztof
Re: [PATCH 1/7] arm64: dts: ti: k3-j721s2-main: Add interrupts property
Posted by Krzysztof Kozlowski 2 months, 2 weeks ago
On 21/07/2025 16:12, Kumar, Udit wrote:
> 
> On 7/21/2025 7:39 PM, Krzysztof Kozlowski wrote:
>> On 21/07/2025 16:07, Kumar, Udit wrote:
>>>> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>>>> index 62f45377a2c9..6f32a2b0c40c 100644
>>>> --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>>>> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>>>> @@ -1248,6 +1248,9 @@ ti_csi2rx0: ticsi2rx@4500000 {
>>>>    		cdns_csi2rx0: csi-bridge@4504000 {
>>>>    			compatible = "ti,j721e-csi2rx", "cdns,csi2rx";
>>>>    			reg = <0x00 0x04504000 0x00 0x1000>;
>>>> +			interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>,
>>>> +				     <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>;
>>> Just cosmetic thing, if you are doing v2 then consider 152 first ,
>>> followed by 153.
>>
>> No, you cannot just randomly change numbers or the order.
>>
> To be precise both , interrupt-names and interrupts,
> 
> if this make sense to change.

No, it does not makes any sense. You cannot change the order and if you
tested this, you would see errors.

Best regards,
Krzysztof
Re: [PATCH 1/7] arm64: dts: ti: k3-j721s2-main: Add interrupts property
Posted by Kumar, Udit 2 months, 2 weeks ago
On 7/21/2025 7:37 PM, Kumar, Udit wrote:
>
> On 7/14/2025 2:57 PM, Yemike Abhilash Chandra wrote:
>> Add interrupts property for CDNS CSI2RX. Interrupt IDs are taken from 
>> the
>> J721S2 TRM [0].
>>
>> Interrupt Line      | Source Interrupt
>> --------------------|----------------------------
>> GIC500SS_SPI_IN_153 | CSI_RX_IF1_CSI_ERR_IRQ_0
>> GIC500SS_SPI_IN_152 | CSI_RX_IF1_CSI_IRQ_0
>> GIC500SS_SPI_IN_157 | CSI_RX_IF2_CSI_ERR_IRQ_0
>> GIC500SS_SPI_IN_156 | CSI_RX_IF2_CSI_IRQ_0
>>
>> [0]: https://www.ti.com/lit/zip/spruj28
>>
>> Signed-off-by: Yemike Abhilash Chandra <y-abhilashchandra@ti.com>
>> ---
>>   arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 6 ++++++
>>   1 file changed, 6 insertions(+)
>>
>> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi 
>> b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>> index 62f45377a2c9..6f32a2b0c40c 100644
>> --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>> @@ -1248,6 +1248,9 @@ ti_csi2rx0: ticsi2rx@4500000 {
>>           cdns_csi2rx0: csi-bridge@4504000 {
>>               compatible = "ti,j721e-csi2rx", "cdns,csi2rx";
>>               reg = <0x00 0x04504000 0x00 0x1000>;
>> +            interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>,
>> +                     <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>;
>
> Just cosmetic thing, if you are doing v2 then consider 152 first , 
> followed by 153.
>
> Otherwise
>
> Reviewed-by: Udit Kumar <u-kumar1@ti.com>


Sorry, sent too fast, offset of 32 missing .


>
>> +            interrupt-names = "error_irq", "irq";
>>               clocks = <&k3_clks 38 3>, <&k3_clks 38 1>, <&k3_clks 38 
>> 3>,
>>                   <&k3_clks 38 3>, <&k3_clks 38 4>, <&k3_clks 38 4>;
>>               clock-names = "sys_clk", "p_clk", "pixel_if0_clk",
>> @@ -1301,6 +1304,9 @@ ti_csi2rx1: ticsi2rx@4510000 {
>>           cdns_csi2rx1: csi-bridge@4514000 {
>>               compatible = "ti,j721e-csi2rx", "cdns,csi2rx";
>>               reg = <0x00 0x04514000 0x00 0x1000>;
>> +            interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
>> +                     <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>;
>> +            interrupt-names = "error_irq", "irq";
>>               clocks = <&k3_clks 39 3>, <&k3_clks 39 1>, <&k3_clks 39 
>> 3>,
>>                   <&k3_clks 39 3>, <&k3_clks 39 4>, <&k3_clks 39 4>;
>>               clock-names = "sys_clk", "p_clk", "pixel_if0_clk",
Re: [PATCH 1/7] arm64: dts: ti: k3-j721s2-main: Add interrupts property
Posted by Yemike Abhilash Chandra 2 months, 2 weeks ago
Hi Udit,

Thanks for the review.

On 21/07/25 19:40, Kumar, Udit wrote:
> 
> On 7/21/2025 7:37 PM, Kumar, Udit wrote:
>>
>> On 7/14/2025 2:57 PM, Yemike Abhilash Chandra wrote:
>>> Add interrupts property for CDNS CSI2RX. Interrupt IDs are taken from 
>>> the
>>> J721S2 TRM [0].
>>>
>>> Interrupt Line      | Source Interrupt
>>> --------------------|----------------------------
>>> GIC500SS_SPI_IN_153 | CSI_RX_IF1_CSI_ERR_IRQ_0
>>> GIC500SS_SPI_IN_152 | CSI_RX_IF1_CSI_IRQ_0
>>> GIC500SS_SPI_IN_157 | CSI_RX_IF2_CSI_ERR_IRQ_0
>>> GIC500SS_SPI_IN_156 | CSI_RX_IF2_CSI_IRQ_0
>>>
>>> [0]: https://www.ti.com/lit/zip/spruj28
>>>
>>> Signed-off-by: Yemike Abhilash Chandra <y-abhilashchandra@ti.com>
>>> ---
>>>   arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 6 ++++++
>>>   1 file changed, 6 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi 
>>> b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>>> index 62f45377a2c9..6f32a2b0c40c 100644
>>> --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>>> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>>> @@ -1248,6 +1248,9 @@ ti_csi2rx0: ticsi2rx@4500000 {
>>>           cdns_csi2rx0: csi-bridge@4504000 {
>>>               compatible = "ti,j721e-csi2rx", "cdns,csi2rx";
>>>               reg = <0x00 0x04504000 0x00 0x1000>;
>>> +            interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>,
>>> +                     <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>;
>>
>> Just cosmetic thing, if you are doing v2 then consider 152 first , 
>> followed by 153.
>>
>> Otherwise
>>
>> Reviewed-by: Udit Kumar <u-kumar1@ti.com>
> 
> 
> Sorry, sent too fast, offset of 32 missing .
> 

 From what I’ve seen, the SPI interrupt IDs on J721S2 start from 0,
so I don’t think we need to subtract the 32 offset.


Interrupt Input Line   Interrupt ID    Source Interrupt
-------------------------------------------------------------
GIC500SS_SPI_IN_00     0               ESM0_ESM_INT_CFG_LVL_0

To confirm this, I’ve latched onto the correct interrupt line, and
my IRQ handler is getting triggered as expected. I’m also seeing the
desired output [0].

Let me know if I might be missing anything.

[0]: 
https://gist.github.com/Yemike-Abhilash-Chandra/f46587ec1ef72671ee31803dd93434b4

Thanks and Regards
Yemike Abhilash Chandra

> 
>>
>>> +            interrupt-names = "error_irq", "irq";
>>>               clocks = <&k3_clks 38 3>, <&k3_clks 38 1>, <&k3_clks 38 
>>> 3>,
>>>                   <&k3_clks 38 3>, <&k3_clks 38 4>, <&k3_clks 38 4>;
>>>               clock-names = "sys_clk", "p_clk", "pixel_if0_clk",
>>> @@ -1301,6 +1304,9 @@ ti_csi2rx1: ticsi2rx@4510000 {
>>>           cdns_csi2rx1: csi-bridge@4514000 {
>>>               compatible = "ti,j721e-csi2rx", "cdns,csi2rx";
>>>               reg = <0x00 0x04514000 0x00 0x1000>;
>>> +            interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
>>> +                     <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>;
>>> +            interrupt-names = "error_irq", "irq";
>>>               clocks = <&k3_clks 39 3>, <&k3_clks 39 1>, <&k3_clks 39 
>>> 3>,
>>>                   <&k3_clks 39 3>, <&k3_clks 39 4>, <&k3_clks 39 4>;
>>>               clock-names = "sys_clk", "p_clk", "pixel_if0_clk",
Re: [PATCH 1/7] arm64: dts: ti: k3-j721s2-main: Add interrupts property
Posted by Jared McArthur 2 months, 1 week ago
On 7/22/25 00:50, Yemike Abhilash Chandra wrote:
> Hi Udit,
> 
> Thanks for the review.
> 
> On 21/07/25 19:40, Kumar, Udit wrote:
>>
>> On 7/21/2025 7:37 PM, Kumar, Udit wrote:
>>>
>>> On 7/14/2025 2:57 PM, Yemike Abhilash Chandra wrote:
>>>> Add interrupts property for CDNS CSI2RX. Interrupt IDs are taken from the
>>>> J721S2 TRM [0].
>>>>
>>>> Interrupt Line      | Source Interrupt
>>>> --------------------|----------------------------
>>>> GIC500SS_SPI_IN_153 | CSI_RX_IF1_CSI_ERR_IRQ_0
>>>> GIC500SS_SPI_IN_152 | CSI_RX_IF1_CSI_IRQ_0
>>>> GIC500SS_SPI_IN_157 | CSI_RX_IF2_CSI_ERR_IRQ_0
>>>> GIC500SS_SPI_IN_156 | CSI_RX_IF2_CSI_IRQ_0
>>>>
>>>> [0]: https://www.ti.com/lit/zip/spruj28
>>>>
>>>> Signed-off-by: Yemike Abhilash Chandra <y-abhilashchandra@ti.com>
>>>> ---
>>>>   arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 6 ++++++
>>>>   1 file changed, 6 insertions(+)
>>>>
>>>> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>>>> index 62f45377a2c9..6f32a2b0c40c 100644
>>>> --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>>>> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>>>> @@ -1248,6 +1248,9 @@ ti_csi2rx0: ticsi2rx@4500000 {
>>>>           cdns_csi2rx0: csi-bridge@4504000 {
>>>>               compatible = "ti,j721e-csi2rx", "cdns,csi2rx";
>>>>               reg = <0x00 0x04504000 0x00 0x1000>;
>>>> +            interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>,
>>>> +                     <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>;
>>>
>>> Just cosmetic thing, if you are doing v2 then consider 152 first , followed by 153.
>>>
>>> Otherwise
>>>
>>> Reviewed-by: Udit Kumar <u-kumar1@ti.com>
>>
>>
>> Sorry, sent too fast, offset of 32 missing .
>>
> 
> From what I’ve seen, the SPI interrupt IDs on J721S2 start from 0,
> so I don’t think we need to subtract the 32 offset.
> 
> 
> Interrupt Input Line   Interrupt ID    Source Interrupt
> -------------------------------------------------------------
> GIC500SS_SPI_IN_00     0               ESM0_ESM_INT_CFG_LVL_0
> 
> To confirm this, I’ve latched onto the correct interrupt line, and
> my IRQ handler is getting triggered as expected. I’m also seeing the
> desired output [0].
> 
> Let me know if I might be missing anything.
> 

The interrupt lines are correct (153, 152, 157, and 152), but when I
read the TRM (specifically the Appendix xls) [0], the lines'
definitions include the offset. Where are you looking for the line
name?

Interrupt Input Line                       | Source Interrupt
-------------------------------------------|-----------------------------
COMPUTE_CLUSTER0_CLEC_SOC_EVENTS_IN_IN_184 | CSI_RX_IF0_CSI_IRQ_OUT_0
COMPUTE_CLUSTER0_CLEC_SOC_EVENTS_IN_IN_185 | CSI_RX_IF0_CSI_ERR_IRQ_OUT_0
COMPUTE_CLUSTER0_CLEC_SOC_EVENTS_IN_IN_188 | CSI_RX_IF1_CSI_IRQ_OUT_0
COMPUTE_CLUSTER0_CLEC_SOC_EVENTS_IN_IN_189 | CSI_RX_IF1_CSI_ERR_IRQ_OUT_0

You may want to change your comment to reflect the TRM's appendix.

[0]: https://www.ti.com/lit/zip/spruj28

> [0]: https://gist.github.com/Yemike-Abhilash-Chandra/f46587ec1ef72671ee31803dd93434b4
> 
> Thanks and Regards
> Yemike Abhilash Chandra
> 
>>
>>>
>>>> +            interrupt-names = "error_irq", "irq";
>>>>               clocks = <&k3_clks 38 3>, <&k3_clks 38 1>, <&k3_clks 38 3>,
>>>>                   <&k3_clks 38 3>, <&k3_clks 38 4>, <&k3_clks 38 4>;
>>>>               clock-names = "sys_clk", "p_clk", "pixel_if0_clk",
>>>> @@ -1301,6 +1304,9 @@ ti_csi2rx1: ticsi2rx@4510000 {
>>>>           cdns_csi2rx1: csi-bridge@4514000 {
>>>>               compatible = "ti,j721e-csi2rx", "cdns,csi2rx";
>>>>               reg = <0x00 0x04514000 0x00 0x1000>;
>>>> +            interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
>>>> +                     <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>;
>>>> +            interrupt-names = "error_irq", "irq";
>>>>               clocks = <&k3_clks 39 3>, <&k3_clks 39 1>, <&k3_clks 39 3>,
>>>>                   <&k3_clks 39 3>, <&k3_clks 39 4>, <&k3_clks 39 4>;
>>>>               clock-names = "sys_clk", "p_clk", "pixel_if0_clk",
> 

-- 
Best,
Jared McArthur
Re: [PATCH 1/7] arm64: dts: ti: k3-j721s2-main: Add interrupts property
Posted by Kumar, Udit 2 months, 1 week ago
On 7/22/2025 11:20 AM, Yemike Abhilash Chandra wrote:
> Hi Udit,
>
> Thanks for the review.
>
> On 21/07/25 19:40, Kumar, Udit wrote:
>>
>> On 7/21/2025 7:37 PM, Kumar, Udit wrote:
>>>
>>> On 7/14/2025 2:57 PM, Yemike Abhilash Chandra wrote:
>>>> Add interrupts property for CDNS CSI2RX. Interrupt IDs are taken 
>>>> from the
>>>> J721S2 TRM [0].
>>>>
>>>> Interrupt Line      | Source Interrupt
>>>> --------------------|----------------------------
>>>> GIC500SS_SPI_IN_153 | CSI_RX_IF1_CSI_ERR_IRQ_0
>>>> GIC500SS_SPI_IN_152 | CSI_RX_IF1_CSI_IRQ_0
>>>> GIC500SS_SPI_IN_157 | CSI_RX_IF2_CSI_ERR_IRQ_0
>>>> GIC500SS_SPI_IN_156 | CSI_RX_IF2_CSI_IRQ_0
>>>>
>>>> [0]: https://www.ti.com/lit/zip/spruj28
>>>>
>>>> Signed-off-by: Yemike Abhilash Chandra <y-abhilashchandra@ti.com>
>>>> ---
>>>>   arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 6 ++++++
>>>>   1 file changed, 6 insertions(+)
>>>>
>>>> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi 
>>>> b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>>>> index 62f45377a2c9..6f32a2b0c40c 100644
>>>> --- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>>>> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
>>>> @@ -1248,6 +1248,9 @@ ti_csi2rx0: ticsi2rx@4500000 {
>>>>           cdns_csi2rx0: csi-bridge@4504000 {
>>>>               compatible = "ti,j721e-csi2rx", "cdns,csi2rx";
>>>>               reg = <0x00 0x04504000 0x00 0x1000>;
>>>> +            interrupts = <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>,
>>>> +                     <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>;
>>>
>>> Just cosmetic thing, if you are doing v2 then consider 152 first , 
>>> followed by 153.
>>>
>>> Otherwise
>>>
>>> Reviewed-by: Udit Kumar <u-kumar1@ti.com>
>>
>>
>> Sorry, sent too fast, offset of 32 missing .
>>
>
> From what I’ve seen, the SPI interrupt IDs on J721S2 start from 0,
> so I don’t think we need to subtract the 32 offset.
>
>
> Interrupt Input Line   Interrupt ID    Source Interrupt
> -------------------------------------------------------------
> GIC500SS_SPI_IN_00     0               ESM0_ESM_INT_CFG_LVL_0
>
> To confirm this, I’ve latched onto the correct interrupt line, and
> my IRQ handler is getting triggered as expected. I’m also seeing the
> desired output [0].
>
> Let me know if I might be missing anything.
>

Thanks for update and please retain Reviewed-by


> [0]: 
> https://gist.github.com/Yemike-Abhilash-Chandra/f46587ec1ef72671ee31803dd93434b4
>
> Thanks and Regards
> Yemike Abhilash Chandra
>
>>
>>>
>>>> +            interrupt-names = "error_irq", "irq";
>>>>               clocks = <&k3_clks 38 3>, <&k3_clks 38 1>, <&k3_clks 
>>>> 38 3>,
>>>>                   <&k3_clks 38 3>, <&k3_clks 38 4>, <&k3_clks 38 4>;
>>>>               clock-names = "sys_clk", "p_clk", "pixel_if0_clk",
>>>> @@ -1301,6 +1304,9 @@ ti_csi2rx1: ticsi2rx@4510000 {
>>>>           cdns_csi2rx1: csi-bridge@4514000 {
>>>>               compatible = "ti,j721e-csi2rx", "cdns,csi2rx";
>>>>               reg = <0x00 0x04514000 0x00 0x1000>;
>>>> +            interrupts = <GIC_SPI 157 IRQ_TYPE_LEVEL_HIGH>,
>>>> +                     <GIC_SPI 156 IRQ_TYPE_LEVEL_HIGH>;
>>>> +            interrupt-names = "error_irq", "irq";
>>>>               clocks = <&k3_clks 39 3>, <&k3_clks 39 1>, <&k3_clks 
>>>> 39 3>,
>>>>                   <&k3_clks 39 3>, <&k3_clks 39 4>, <&k3_clks 39 4>;
>>>>               clock-names = "sys_clk", "p_clk", "pixel_if0_clk",