* [PATCH] arm64: dts: qcom: talos: Mark USB controllers as DMA coherent
@ 2026-10-21 17:28 Krishna Kurapati
2026-10-22 8:21 ` Konrad Dybcio
0 siblings, 1 reply; 4+ messages in thread
From: Krishna Kurapati @ 2026-10-21 17:28 UTC (permalink / raw)
To: Bjorn Andersson, Konrad Dybcio, Abel Vesa, Rob Herring,
Krzysztof Kozlowski, Conor Dooley
Cc: linux-arm-msm, devicetree, linux-kernel, Krishna Kurapati
Both USB controllers on Talos are DMA coherent. Add property indicating
the same.
Signed-off-by: Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>
---
arch/arm64/boot/dts/qcom/talos.dtsi | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/talos.dtsi b/arch/arm64/boot/dts/qcom/talos.dtsi
index 8ed6f2755705..70b002d29ef2 100644
--- a/arch/arm64/boot/dts/qcom/talos.dtsi
+++ b/arch/arm64/boot/dts/qcom/talos.dtsi
@@ -5158,6 +5158,7 @@ usb_1: usb@a600000 {
snps,usb3_lpm_capable;
wakeup-source;
+ dma-coherent;
status = "disabled";
};
@@ -5214,6 +5215,7 @@ usb_2: usb@a800000 {
maximum-speed = "high-speed";
wakeup-source;
+ dma-coherent;
status = "disabled";
};
---
base-commit: f5672a3dff0291d6a45eb0c258b9d2baeb4dc577
change-id: 20261021-talos-dma-coherent-usb-f2d7c14a215f
Best regards,
--
Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH] arm64: dts: qcom: talos: Mark USB controllers as DMA coherent
2026-10-21 17:28 [PATCH] arm64: dts: qcom: talos: Mark USB controllers as DMA coherent Krishna Kurapati
@ 2026-10-22 8:21 ` Konrad Dybcio
2026-10-28 17:01 ` Krishna Kurapati
0 siblings, 1 reply; 4+ messages in thread
From: Konrad Dybcio @ 2026-10-22 8:21 UTC (permalink / raw)
To: Krishna Kurapati, Bjorn Andersson, Konrad Dybcio, Abel Vesa,
Rob Herring, Krzysztof Kozlowski, Conor Dooley
Cc: linux-arm-msm, devicetree, linux-kernel
On 10/21/26 7:28 PM, Krishna Kurapati wrote:
> Both USB controllers on Talos are DMA coherent. Add property indicating
> the same.
>
> Signed-off-by: Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>
> ---
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
I asked an LLM to find is_rpmh && !dwc3_dma_coherent. It gave me:
- kodiak
- lemans
- monaco
- qdu1000
- sc7180
- sc8180x
- sc8280xp
- sdm670
- sdm845
- sdx75
- sm6350
- sm8150
- sm8250
- sm8350
- sm8450
- talos (fixed by this patch)
- qcom-sdx55
- qcom-sdx65
should we mark all of these coherent?
Konrad
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] arm64: dts: qcom: talos: Mark USB controllers as DMA coherent
2026-10-22 8:21 ` Konrad Dybcio
@ 2026-10-28 17:01 ` Krishna Kurapati
2026-10-28 17:02 ` Konrad Dybcio
0 siblings, 1 reply; 4+ messages in thread
From: Krishna Kurapati @ 2026-10-28 17:01 UTC (permalink / raw)
To: Konrad Dybcio
Cc: linux-arm-msm, devicetree, linux-kernel, Bjorn Andersson,
Konrad Dybcio, Abel Vesa, Rob Herring, Krzysztof Kozlowski,
Conor Dooley
On 10/22/2026 1:51 PM, Konrad Dybcio wrote:
> On 10/21/26 7:28 PM, Krishna Kurapati wrote:
>> Both USB controllers on Talos are DMA coherent. Add property indicating
>> the same.
>>
>> Signed-off-by: Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>
>> ---
>
> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>
> I asked an LLM to find is_rpmh && !dwc3_dma_coherent. It gave me:
>
> - kodiak
> - lemans
> - monaco
> - qdu1000
> - sc7180
> - sc8180x
> - sc8280xp
> - sdm670
> - sdm845
> - sdx75
> - sm6350
> - sm8150
> - sm8250
> - sm8350
> - sm8450
> - talos (fixed by this patch)
> - qcom-sdx55
> - qcom-sdx65
>
I am sure for the following:
sdx65
sdx75
lemans
sm8450
qdu1000
kodiak
sm8350
I can send a series for these patches if that is fine.
But the others I need to confirm.
Regards,
Krishna,
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH] arm64: dts: qcom: talos: Mark USB controllers as DMA coherent
2026-10-28 17:01 ` Krishna Kurapati
@ 2026-10-28 17:02 ` Konrad Dybcio
0 siblings, 0 replies; 4+ messages in thread
From: Konrad Dybcio @ 2026-10-28 17:02 UTC (permalink / raw)
To: Krishna Kurapati
Cc: linux-arm-msm, devicetree, linux-kernel, Bjorn Andersson,
Konrad Dybcio, Abel Vesa, Rob Herring, Krzysztof Kozlowski,
Conor Dooley
On 10/28/26 6:01 PM, Krishna Kurapati wrote:
>
>
> On 10/22/2026 1:51 PM, Konrad Dybcio wrote:
>> On 10/21/26 7:28 PM, Krishna Kurapati wrote:
>>> Both USB controllers on Talos are DMA coherent. Add property indicating
>>> the same.
>>>
>>> Signed-off-by: Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>
>>> ---
>>
>> Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
>>
>> I asked an LLM to find is_rpmh && !dwc3_dma_coherent. It gave me:
>>
>> - kodiak
>> - lemans
>> - monaco
>> - qdu1000
>> - sc7180
>> - sc8180x
>> - sc8280xp
>> - sdm670
>> - sdm845
>> - sdx75
>> - sm6350
>> - sm8150
>> - sm8250
>> - sm8350
>> - sm8450
>> - talos (fixed by this patch)
>> - qcom-sdx55
>> - qcom-sdx65
>>
> I am sure for the following:
>
> sdx65
> sdx75
> lemans
> sm8450
> qdu1000
> kodiak
> sm8350
>
> I can send a series for these patches if that is fine.
> But the others I need to confirm.
Please send for the ones you're sure and please follow up for
the rest
Konrad
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2026-10-28 17:02 UTC | newest]
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2026-10-21 17:28 [PATCH] arm64: dts: qcom: talos: Mark USB controllers as DMA coherent Krishna Kurapati
2026-10-22 8:21 ` Konrad Dybcio
2026-10-28 17:01 ` Krishna Kurapati
2026-10-28 17:02 ` Konrad Dybcio
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