From: Jianjun Wang <jianjun.wang@mediatek.com>
To: Bjorn Helgaas <bhelgaas@google.com>,
Rob Herring <robh+dt@kernel.org>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Ryder Lee <ryder.lee@mediatek.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>,
<linux-pci@vger.kernel.org>, <linux-mediatek@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
Jianjun Wang <jianjun.wang@mediatek.com>,
<youlin.pei@mediatek.com>, <chuanjia.liu@mediatek.com>,
<qizhong.cheng@mediatek.com>, <sin_jieyang@mediatek.com>,
<drinkcat@chromium.org>, <Rex-BC.Chen@mediatek.com>,
Krzysztof Wilczyski <kw@linux.com>, <Ryan-JH.Yu@mediatek.com>
Subject: [PATCH v2 1/2] dt-bindings: PCI: mediatek-gen3: Add property to disable dvfsrc voltage request
Date: Fri, 11 Jun 2021 19:48:23 +0800 [thread overview]
Message-ID: <20210611114824.14537-2-jianjun.wang@mediatek.com> (raw)
In-Reply-To: <20210611114824.14537-1-jianjun.wang@mediatek.com>
Add property to disable dvfsrc voltage request, if this property
is presented, we assume that the requested voltage is always
higher enough to keep the PCIe controller active.
Signed-off-by: Jianjun Wang <jianjun.wang@mediatek.com>
Reviewed-by: Qizhong Cheng <qizhong.cheng@mediatek.com>
Tested-by: Qizhong Cheng <qizhong.cheng@mediatek.com>
---
.../devicetree/bindings/pci/mediatek-pcie-gen3.yaml | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
index e7b1f9892da4..3e26c032cea9 100644
--- a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
@@ -96,6 +96,12 @@ properties:
phys:
maxItems: 1
+ disable-dvfsrc-vlt-req:
+ description: Disable dvfsrc voltage request, if this property is presented,
+ we assume that the requested voltage is always higher enough to keep
+ the PCIe controller active.
+ type: boolean
+
'#interrupt-cells':
const: 1
@@ -166,6 +172,8 @@ examples:
<&infracfg_rst 3>;
reset-names = "phy", "mac";
+ disable-dvfsrc-vlt-req;
+
#interrupt-cells = <1>;
interrupt-map-mask = <0 0 0 0x7>;
interrupt-map = <0 0 0 1 &pcie_intc 0>,
--
2.25.1
next prev parent reply other threads:[~2021-06-11 11:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-11 11:48 [PATCH v2 0/2] PCI: mediatek-gen3: Add support for disable dvfsrc Jianjun Wang
2021-06-11 11:48 ` Jianjun Wang [this message]
2021-06-28 8:03 ` [PATCH v2 1/2] dt-bindings: PCI: mediatek-gen3: Add property to disable dvfsrc voltage request Jianjun Wang
2021-06-11 11:48 ` [PATCH v2 2/2] PCI: mediatek-gen3: Add support for " Jianjun Wang
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