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

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Message-Id: <20250722091151.1423332-2-quic_wenbyao@quicinc.com>
Date: Tue, 22 Jul 2025 17:11:49 +0800
From: Wenbin Yao <quic_wenbyao@...cinc.com>
To: lpieralisi@...nel.org, kwilczynski@...nel.org, mani@...nel.org,
        robh@...nel.org, bhelgaas@...gle.com, sfr@...b.auug.org.au,
        qiang.yu@....qualcomm.com, quic_wenbyao@...cinc.com,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        andersson@...nel.org, konradybcio@...nel.org, krzk+dt@...nel.org,
        conor+dt@...nel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org
Cc: krishna.chundru@....qualcomm.com, quic_vbadigan@...cinc.com,
        quic_mrana@...cinc.com, quic_cang@...cinc.com
Subject: [PATCH v5 1/3] PCI: dwc: enable PCI Power Control Slot driver for QCOM

From: Qiang Yu <qiang.yu@....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@....qualcomm.com>
Signed-off-by: Wenbin Yao <quic_wenbyao@...cinc.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