summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/phy/mediatek,ufs-phy.yaml
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--Documentation/devicetree/bindings/phy/mediatek,ufs-phy.yaml69
1 files changed, 69 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/phy/mediatek,ufs-phy.yaml b/Documentation/devicetree/bindings/phy/mediatek,ufs-phy.yaml
new file mode 100644
index 000000000..74cc32c1d
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/mediatek,ufs-phy.yaml
@@ -0,0 +1,69 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (c) 2020 MediaTek
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/mediatek,ufs-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek Universal Flash Storage (UFS) M-PHY binding
+
+maintainers:
+ - Stanley Chu <stanley.chu@mediatek.com>
+ - Chunfeng Yun <chunfeng.yun@mediatek.com>
+
+description: |
+ UFS M-PHY nodes are defined to describe on-chip UFS M-PHY hardware macro.
+ Each UFS M-PHY node should have its own node.
+ To bind UFS M-PHY with UFS host controller, the controller node should
+ contain a phandle reference to UFS M-PHY node.
+
+properties:
+ $nodename:
+ pattern: "^ufs-phy@[0-9a-f]+$"
+
+ compatible:
+ oneOf:
+ - items:
+ - enum:
+ - mediatek,mt8195-ufsphy
+ - const: mediatek,mt8183-ufsphy
+ - const: mediatek,mt8183-ufsphy
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: Unipro core control clock.
+ - description: M-PHY core control clock.
+
+ clock-names:
+ items:
+ - const: unipro
+ - const: mp
+
+ "#phy-cells":
+ const: 0
+
+required:
+ - compatible
+ - reg
+ - "#phy-cells"
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/mt8183-clk.h>
+ ufsphy: ufs-phy@11fa0000 {
+ compatible = "mediatek,mt8183-ufsphy";
+ reg = <0x11fa0000 0xc000>;
+ clocks = <&infracfg CLK_INFRA_UNIPRO_SCK>,
+ <&infracfg CLK_INFRA_UFS_MP_SAP_BCLK>;
+ clock-names = "unipro", "mp";
+ #phy-cells = <0>;
+ };
+
+...