linux-kernel - Re: [PATCH v7 7/8] arm64: defconfig: Enable TC9563 PWRCTL driver

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Message-ID: <a876f8d4-969a-40a8-8988-2f716a742741@oss.qualcomm.com>
Date: Thu, 30 Oct 2025 09:08:28 +0530
From: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>
To: Bartosz Golaszewski <brgl@...ev.pl>
Cc: Bjorn Helgaas <bhelgaas@...gle.com>,
        Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        chaitanya chundru <quic_krichai@...cinc.com>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        cros-qcom-dts-watchers@...omium.org, Jingoo Han <jingoohan1@...il.com>,
        Krzysztof Wilczyński <kwilczynski@...nel.org>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, quic_vbadigan@...cnic.com,
        amitk@...nel.org, linux-pci@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, jorge.ramirez@....qualcomm.com,
        linux-arm-kernel@...ts.infradead.org,
        Dmitry Baryshkov <lumag@...nel.org>
Subject: Re: [PATCH v7 7/8] arm64: defconfig: Enable TC9563 PWRCTL driver


On 10/29/2025 6:45 PM, Bartosz Golaszewski wrote:
> On Wed, Oct 29, 2025 at 12:30 PM Krishna Chaitanya Chundru
> <krishna.chundru@....qualcomm.com> wrote:
>> Enable TC9563 PCIe switch pwrctl driver by default. This is needed
>> to power the PCIe switch which is present in Qualcomm RB3gen2 platform.
>> Without this the switch will not powered up and we can't use the
>> endpoints connected to the switch.
>>
>> Signed-off-by: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>
>> ---
>>   arch/arm64/configs/defconfig | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
>> index e3a2d37bd10423b028f59dc40d6e8ee1c610d6b8..fe5c9951c437a67ac76bf939a9e436eafa3820bf 100644
>> --- a/arch/arm64/configs/defconfig
>> +++ b/arch/arm64/configs/defconfig
>> @@ -249,6 +249,7 @@ CONFIG_PCIE_LAYERSCAPE_GEN4=y
>>   CONFIG_PCI_ENDPOINT=y
>>   CONFIG_PCI_ENDPOINT_CONFIGFS=y
>>   CONFIG_PCI_EPF_TEST=m
>> +CONFIG_PCI_PWRCTRL_TC9563=m
>>   CONFIG_DEVTMPFS=y
>>   CONFIG_DEVTMPFS_MOUNT=y
>>   CONFIG_FW_LOADER_USER_HELPER=y
>>
>> --
>> 2.34.1
>>
> Can't we just do the following in the respective Kconfig entry?
>
> config PCI_PWRCTRL_TC9563
>      tristate ...
>      default m if ARCH_QCOM

Ack, I will do in next series

- Krishna Chaitanya.

> Bart