[PATCH v2 1/2] dt-bindings: PCI: mediatek-gen3: Add property to disable dvfsrc voltage request

Jianjun Wang jianjun.wang at mediatek.com
Fri Jun 11 04:48:23 PDT 2021


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 at mediatek.com>
Reviewed-by: Qizhong Cheng <qizhong.cheng at mediatek.com>
Tested-by: Qizhong Cheng <qizhong.cheng at 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


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