From: Richard Zhu <hongxing.zhu@nxp.com>
To: l.stach@pengutronix.de, andrew.smirnov@gmail.com,
shawnguo@kernel.org, kw@linux.com, bhelgaas@google.com,
stefan@agner.ch, lorenzo.pieralisi@arm.com
Cc: linux-pci@vger.kernel.org, linux-imx@nxp.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, kernel@pengutronix.de,
Richard Zhu <hongxing.zhu@nxp.com>
Subject: [PATCH v5 1/2] dt-bindings: imx6q-pcie: Add "vph-supply" for PHY supply voltage
Date: Fri, 28 May 2021 14:29:42 +0800 [thread overview]
Message-ID: <1622183383-3287-2-git-send-email-hongxing.zhu@nxp.com> (raw)
In-Reply-To: <1622183383-3287-1-git-send-email-hongxing.zhu@nxp.com>
The i.MX8MQ PCIe PHY can use either a 1.8V or a 3.3V power supply.
Add a "vph-supply" property to indicate which regulator supplies
power for the PHY.
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
---
Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
index de4b2baf91e8..d8971ab99274 100644
--- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
@@ -38,6 +38,9 @@ Optional properties:
The regulator will be enabled when initializing the PCIe host and
disabled either as part of the init process or when shutting down the
host.
+- vph-supply: Should specify the regulator in charge of VPH one of the three
+ PCIe PHY powers. This regulator can be supplied by both 1.8v and 3.3v voltage
+ supplies.
Additional required properties for imx6sx-pcie:
- clock names: Must include the following additional entries:
--
2.17.1
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next prev parent reply other threads:[~2021-05-28 6:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-28 6:29 [PATCH v5 0/2] PCI: imx6: add one regulator used to power up pcie phy Richard Zhu
2021-05-28 6:29 ` Richard Zhu [this message]
2021-06-03 16:19 ` [PATCH v5 1/2] dt-bindings: imx6q-pcie: Add "vph-supply" for PHY supply voltageg Lorenzo Pieralisi
2021-05-28 6:29 ` [PATCH v5 2/2] PCI: imx6: Enable PHY internal regulator when supplied >3V Richard Zhu
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