[PATCH v5 1/3] PCI: dwc: enable PCI Power Control Slot driver for QCOM

Wenbin Yao posted 3 patches 2 months, 2 weeks ago
[PATCH v5 1/3] PCI: dwc: enable PCI Power Control Slot driver for QCOM
Posted by Wenbin Yao 2 months, 2 weeks ago
From: Qiang Yu <qiang.yu@oss.qualcomm.com>

Enable the pwrctrl driver, which is utilized to manage the power supplies
of the devices connected to the PCI slots. This ensures that the voltage
rails of the standard PCI slots on some platforms eg. X1E80100-QCP can be
correctly turned on/off if they are described under PCIe port device tree
node.

Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>
Signed-off-by: Wenbin Yao <quic_wenbyao@quicinc.com>
---
 drivers/pci/controller/dwc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig
index ff6b6d9e1..deafc512b 100644
--- a/drivers/pci/controller/dwc/Kconfig
+++ b/drivers/pci/controller/dwc/Kconfig
@@ -298,6 +298,7 @@ config PCIE_QCOM
 	select CRC8
 	select PCIE_QCOM_COMMON
 	select PCI_HOST_COMMON
+	select PCI_PWRCTRL_SLOT
 	help
 	  Say Y here to enable PCIe controller support on Qualcomm SoCs. The
 	  PCIe controller uses the DesignWare core plus Qualcomm-specific
-- 
2.34.1
Re: [PATCH v5 1/3] PCI: dwc: enable PCI Power Control Slot driver for QCOM
Posted by Manivannan Sadhasivam 2 months, 2 weeks ago
On Tue, Jul 22, 2025 at 05:11:49PM GMT, Wenbin Yao wrote:
> From: Qiang Yu <qiang.yu@oss.qualcomm.com>
> 
> Enable the pwrctrl driver, which is utilized to manage the power supplies
> of the devices connected to the PCI slots. This ensures that the voltage
> rails of the standard PCI slots on some platforms eg. X1E80100-QCP can be
> correctly turned on/off if they are described under PCIe port device tree
> node.
> 
> Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>
> Signed-off-by: Wenbin Yao <quic_wenbyao@quicinc.com>
> ---
>  drivers/pci/controller/dwc/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig
> index ff6b6d9e1..deafc512b 100644
> --- a/drivers/pci/controller/dwc/Kconfig
> +++ b/drivers/pci/controller/dwc/Kconfig
> @@ -298,6 +298,7 @@ config PCIE_QCOM
>  	select CRC8
>  	select PCIE_QCOM_COMMON
>  	select PCI_HOST_COMMON
> +	select PCI_PWRCTRL_SLOT

I guess you also need 'if HAVE_PWRCTRL'

- Mani

-- 
மணிவண்ணன் சதாசிவம்
Re: [PATCH v5 1/3] PCI: dwc: enable PCI Power Control Slot driver for QCOM
Posted by Wenbin Yao (Consultant) 2 months, 2 weeks ago
On 7/23/2025 10:34 PM, Manivannan Sadhasivam wrote:
> On Tue, Jul 22, 2025 at 05:11:49PM GMT, Wenbin Yao wrote:
>> From: Qiang Yu <qiang.yu@oss.qualcomm.com>
>>
>> Enable the pwrctrl driver, which is utilized to manage the power supplies
>> of the devices connected to the PCI slots. This ensures that the voltage
>> rails of the standard PCI slots on some platforms eg. X1E80100-QCP can be
>> correctly turned on/off if they are described under PCIe port device tree
>> node.
>>
>> Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>
>> Signed-off-by: Wenbin Yao <quic_wenbyao@quicinc.com>
>> ---
>>   drivers/pci/controller/dwc/Kconfig | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig
>> index ff6b6d9e1..deafc512b 100644
>> --- a/drivers/pci/controller/dwc/Kconfig
>> +++ b/drivers/pci/controller/dwc/Kconfig
>> @@ -298,6 +298,7 @@ config PCIE_QCOM
>>   	select CRC8
>>   	select PCIE_QCOM_COMMON
>>   	select PCI_HOST_COMMON
>> +	select PCI_PWRCTRL_SLOT
> I guess you also need 'if HAVE_PWRCTRL'
>
> - Mani

PCIE_QCOM depends on PCI and (ARCH_QCOM  || COMPILE_TEST), ARCH_QCOM
selects HAVE_PWRCTRL.

>
-- 
With best wishes
Wenbin

Re: [PATCH v5 1/3] PCI: dwc: enable PCI Power Control Slot driver for QCOM
Posted by Bjorn Helgaas 2 months, 2 weeks ago
In subject:

  PCI: qcom: Enable PCI Power Control Slot driver

This is not a generic dwc change; it's specific to qcom, so I want the
subject to reflect that.

We can fix this when applying unless other changes are needed.

On Tue, Jul 22, 2025 at 05:11:49PM +0800, Wenbin Yao wrote:
> From: Qiang Yu <qiang.yu@oss.qualcomm.com>
> 
> Enable the pwrctrl driver, which is utilized to manage the power supplies
> of the devices connected to the PCI slots. This ensures that the voltage
> rails of the standard PCI slots on some platforms eg. X1E80100-QCP can be
> correctly turned on/off if they are described under PCIe port device tree
> node.
> 
> Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>
> Signed-off-by: Wenbin Yao <quic_wenbyao@quicinc.com>
> ---
>  drivers/pci/controller/dwc/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig
> index ff6b6d9e1..deafc512b 100644
> --- a/drivers/pci/controller/dwc/Kconfig
> +++ b/drivers/pci/controller/dwc/Kconfig
> @@ -298,6 +298,7 @@ config PCIE_QCOM
>  	select CRC8
>  	select PCIE_QCOM_COMMON
>  	select PCI_HOST_COMMON
> +	select PCI_PWRCTRL_SLOT
>  	help
>  	  Say Y here to enable PCIe controller support on Qualcomm SoCs. The
>  	  PCIe controller uses the DesignWare core plus Qualcomm-specific
> -- 
> 2.34.1
>
Re: [PATCH v5 1/3] PCI: dwc: enable PCI Power Control Slot driver for QCOM
Posted by Wenbin Yao (Consultant) 2 months, 2 weeks ago
On 7/23/2025 7:22 AM, Bjorn Helgaas wrote:
> In subject:
>
>    PCI: qcom: Enable PCI Power Control Slot driver
>
> This is not a generic dwc change; it's specific to qcom, so I want the
> subject to reflect that.
>
> We can fix this when applying unless other changes are needed.

OK, will fix it.

>
> On Tue, Jul 22, 2025 at 05:11:49PM +0800, Wenbin Yao wrote:
>> From: Qiang Yu <qiang.yu@oss.qualcomm.com>
>>
>> Enable the pwrctrl driver, which is utilized to manage the power supplies
>> of the devices connected to the PCI slots. This ensures that the voltage
>> rails of the standard PCI slots on some platforms eg. X1E80100-QCP can be
>> correctly turned on/off if they are described under PCIe port device tree
>> node.
>>
>> Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>
>> Signed-off-by: Wenbin Yao <quic_wenbyao@quicinc.com>
>> ---
>>   drivers/pci/controller/dwc/Kconfig | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig
>> index ff6b6d9e1..deafc512b 100644
>> --- a/drivers/pci/controller/dwc/Kconfig
>> +++ b/drivers/pci/controller/dwc/Kconfig
>> @@ -298,6 +298,7 @@ config PCIE_QCOM
>>   	select CRC8
>>   	select PCIE_QCOM_COMMON
>>   	select PCI_HOST_COMMON
>> +	select PCI_PWRCTRL_SLOT
>>   	help
>>   	  Say Y here to enable PCIe controller support on Qualcomm SoCs. The
>>   	  PCIe controller uses the DesignWare core plus Qualcomm-specific
>> -- 
>> 2.34.1
>>
-- 
With best wishes
Wenbin

Re: [PATCH v5 1/3] PCI: dwc: enable PCI Power Control Slot driver for QCOM
Posted by Qiang Yu 1 month, 3 weeks ago

On 7/24/2025 10:52 AM, Wenbin Yao (Consultant) wrote:
> On 7/23/2025 7:22 AM, Bjorn Helgaas wrote:
>> In subject:
>>
>>    PCI: qcom: Enable PCI Power Control Slot driver
>>
>> This is not a generic dwc change; it's specific to qcom, so I want the
>> subject to reflect that.
>>
>> We can fix this when applying unless other changes are needed.
> 
> OK, will fix it.

Hi Bjorn, we have nothing to update, will not send new version, could you
please pick up patches and fix this when applying if there is no further
comments?

- Qiang Yu> 
>>
>> On Tue, Jul 22, 2025 at 05:11:49PM +0800, Wenbin Yao wrote:
>>> From: Qiang Yu <qiang.yu@oss.qualcomm.com>
>>>
>>> Enable the pwrctrl driver, which is utilized to manage the power supplies
>>> of the devices connected to the PCI slots. This ensures that the voltage
>>> rails of the standard PCI slots on some platforms eg. X1E80100-QCP can be
>>> correctly turned on/off if they are described under PCIe port device tree
>>> node.
>>>
>>> Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>
>>> Signed-off-by: Wenbin Yao <quic_wenbyao@quicinc.com>
>>> ---
>>>   drivers/pci/controller/dwc/Kconfig | 1 +
>>>   1 file changed, 1 insertion(+)
>>>
>>> diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig
>>> index ff6b6d9e1..deafc512b 100644
>>> --- a/drivers/pci/controller/dwc/Kconfig
>>> +++ b/drivers/pci/controller/dwc/Kconfig
>>> @@ -298,6 +298,7 @@ config PCIE_QCOM
>>>       select CRC8
>>>       select PCIE_QCOM_COMMON
>>>       select PCI_HOST_COMMON
>>> +    select PCI_PWRCTRL_SLOT
>>>       help
>>>         Say Y here to enable PCIe controller support on Qualcomm SoCs. The
>>>         PCIe controller uses the DesignWare core plus Qualcomm-specific
>>> -- 
>>> 2.34.1
>>>