lkml.org 
[lkml]   [2020]   [Sep]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v3 7/7] dt-bindings: phy: cadence-torrent: Update Torrent PHY bindings for generic use
Date
Torrent PHY can be used in different multi-link multi-protocol
configurations including protocols other than DisplayPort also,
such as PCIe, USB, SGMII, QSGMII etc. Update the bindings to have
support for these configurations.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
---
.../bindings/phy/phy-cadence-torrent.yaml | 77 +++++++++++++++----
1 file changed, 60 insertions(+), 17 deletions(-)

diff --git a/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml b/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml
index a7ee19d27c19..26480f89627d 100644
--- a/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml
+++ b/Documentation/devicetree/bindings/phy/phy-cadence-torrent.yaml
@@ -4,11 +4,13 @@
$id: "http://devicetree.org/schemas/phy/phy-cadence-torrent.yaml#"
$schema: "http://devicetree.org/meta-schemas/core.yaml#"

-title: Cadence Torrent SD0801 PHY binding for DisplayPort
+title: Cadence Torrent SD0801 PHY binding

description:
This binding describes the Cadence SD0801 PHY (also known as Torrent PHY)
- hardware included with the Cadence MHDP DisplayPort controller.
+ hardware included with the Cadence MHDP DisplayPort controller. Torrent
+ PHY also supports multilink multiprotocol combinations including protocols
+ such as PCIe, USB, SGMII, QSGMII etc.

maintainers:
- Swapnil Jakhade <sjakhade@cadence.com>
@@ -49,13 +51,14 @@ properties:
- const: dptx_phy

resets:
- maxItems: 1
- description:
- Torrent PHY reset.
- See Documentation/devicetree/bindings/reset/reset.txt
+ minItems: 1
+ maxItems: 2
+ items:
+ - description: Torrent PHY reset.
+ - description: Torrent APB reset. This is optional.

patternProperties:
- '^phy@[0-7]+$':
+ '^phy@[0-3]$':
type: object
description:
Each group of PHY lanes with a single master lane should be represented as a sub-node.
@@ -63,6 +66,8 @@ patternProperties:
reg:
description:
The master lane number. This is the lowest numbered lane in the lane group.
+ minimum: 0
+ maximum: 3

resets:
minItems: 1
@@ -78,13 +83,14 @@ patternProperties:
Specifies the type of PHY for which the group of PHY lanes is used.
Refer include/dt-bindings/phy/phy.h. Constants from the header should be used.
$ref: /schemas/types.yaml#/definitions/uint32
- enum: [1, 2, 3, 4, 5, 6]
+ minimum: 1
+ maximum: 9

cdns,num-lanes:
description:
- Number of DisplayPort lanes.
+ Number of lanes.
$ref: /schemas/types.yaml#/definitions/uint32
- enum: [1, 2, 4]
+ enum: [1, 2, 3, 4]
default: 4

cdns,ssc-mode:
@@ -108,6 +114,7 @@ patternProperties:
- resets
- "#phy-cells"
- cdns,phy-type
+ - cdns,num-lanes

additionalProperties: false

@@ -142,13 +149,49 @@ examples:
#address-cells = <1>;
#size-cells = <0>;
phy@0 {
- reg = <0>;
- resets = <&phyrst 1>, <&phyrst 2>,
- <&phyrst 3>, <&phyrst 4>;
- #phy-cells = <0>;
- cdns,phy-type = <PHY_TYPE_DP>;
- cdns,num-lanes = <4>;
- cdns,max-bit-rate = <8100>;
+ reg = <0>;
+ resets = <&phyrst 1>, <&phyrst 2>,
+ <&phyrst 3>, <&phyrst 4>;
+ #phy-cells = <0>;
+ cdns,phy-type = <PHY_TYPE_DP>;
+ cdns,num-lanes = <4>;
+ cdns,max-bit-rate = <8100>;
+ };
+ };
+ };
+ - |
+ #include <dt-bindings/phy/phy.h>
+ #include <dt-bindings/phy/phy-cadence-torrent.h>
+
+ bus {
+ #address-cells = <2>;
+ #size-cells = <2>;
+
+ torrent-phy@f0fb500000 {
+ compatible = "cdns,torrent-phy";
+ reg = <0xf0 0xfb500000 0x0 0x00100000>;
+ reg-names = "torrent_phy";
+ resets = <&phyrst 0>, <&phyrst 1>;
+ clocks = <&ref_clk>;
+ clock-names = "refclk";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ phy@0 {
+ reg = <0>;
+ resets = <&phyrst 2>, <&phyrst 3>;
+ #phy-cells = <0>;
+ cdns,phy-type = <PHY_TYPE_PCIE>;
+ cdns,num-lanes = <2>;
+ cdns,ssc-mode = <TORRENT_SERDES_NO_SSC>;
+ };
+
+ phy@2 {
+ reg = <2>;
+ resets = <&phyrst 4>;
+ #phy-cells = <0>;
+ cdns,phy-type = <PHY_TYPE_SGMII>;
+ cdns,num-lanes = <1>;
+ cdns,ssc-mode = <TORRENT_SERDES_NO_SSC>;
};
};
};
--
2.26.1
\
 
 \ /
  Last update: 2020-09-16 20:30    [W:0.059 / U:1.464 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site