Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1638592 > unrolled thread

[RESEND PATCH v5 0/3] Support for USB DRD Phy driver for NS2

Back to article view | Back to linux.kernel

Contents

  [RESEND PATCH v5 0/3] Support for USB DRD Phy driver for NS2 Raviteja Garimella <raviteja.garimella@broadcom.com> - 2017-05-10 09:00 +0200
    [RESEND PATCH v5 1/3] dt-bindings:phy:Add DT bindings documentation for NS2 USB DRD phy Raviteja Garimella <raviteja.garimella@broadcom.com> - 2017-05-10 09:00 +0200

#1638592 — [RESEND PATCH v5 0/3] Support for USB DRD Phy driver for NS2

Resending the patchset v5.
Commit message for dts patch is edited as suggested by Florian.

Changes in v5:
=============
Removed references to phy_ops in the same driver by connect_work
event handler to change the phy modes.

To support dynamically changing the mode of the phy, it does
not require doing a phy reset/programming of PHY PLL. Changes
are made to the connect_work routine to just program the required
register bits to achieve this purpose.

Changes in v4:
=============
Remove references to edev->name in debug prints.

Changes in v3:
=============
Remove unnecessary checks for poweron as suggested in review.

Changes in v2:
=============
1. Initialize file operations .owner field with THIS_MODULE.
2. Remove unnecessary gpio example in DT bindings documentation.
   This is previously acked by Rob Herring <robh@kernel.org>

Introduction for PATCH v1:

This patch adds support for USB Dual Role Device Phy for Broadcom
Northstar2 SoC. Apart from the new phy driver, this patchset contains
changes to Kconfig, Makefile, and Device tree files.

This patchset is tested on Broadcom NS2 BCM958712K reference board.

Repo: https://github.com/Broadcom/arm64-linux.git
Branch: ns2_drdphy_v5

Raviteja Garimella (3):
  dt-bindings:phy:Add DT bindings documentation for NS2 USB DRD phy
  phy:phy-bcm-ns2-usbdrd:Broadcom USB DRD Phy driver for Northstar2
  arm64: dts: NS2: Add USB DRD PHY device tree node

 .../devicetree/bindings/phy/brcm,ns2-drd-phy.txt   |  30 ++
 arch/arm64/boot/dts/broadcom/ns2.dtsi              |  14 +
 drivers/phy/Kconfig                                |  13 +
 drivers/phy/Makefile                               |   1 +
 drivers/phy/phy-bcm-ns2-usbdrd.c                   | 595 +++++++++++++++++++++
 5 files changed, 653 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/brcm,ns2-drd-phy.txt
 create mode 100644 drivers/phy/phy-bcm-ns2-usbdrd.c

-- 
2.1.0

[toc] | [next] | [standalone]

#1638598 — [RESEND PATCH v5 1/3] dt-bindings:phy:Add DT bindings documentation for NS2 USB DRD phy

This patch adds documentation for NS2 DRD Phy driver DT bindings

Signed-off-by: Raviteja Garimella <raviteja.garimella@broadcom.com>
Acked-by: Rob Herring <robh@kernel.org>
---
 .../devicetree/bindings/phy/brcm,ns2-drd-phy.txt   | 30 ++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/brcm,ns2-drd-phy.txt

diff --git a/Documentation/devicetree/bindings/phy/brcm,ns2-drd-phy.txt b/Documentation/devicetree/bindings/phy/brcm,ns2-drd-phy.txt
new file mode 100644
index 0000000..04f063a
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/brcm,ns2-drd-phy.txt
@@ -0,0 +1,30 @@
+BROADCOM NORTHSTAR2 USB2 (DUAL ROLE DEVICE) PHY
+
+Required properties:
+ - compatible: brcm,ns2-drd-phy
+ - reg: offset and length of the NS2 PHY related registers.
+ - reg-names
+   The below registers must be provided.
+   icfg - for DRD ICFG configurations
+   rst-ctrl - for DRD IDM reset
+   crmu-ctrl - for CRMU core vdd, PHY and PHY PLL reset
+   usb2-strap - for port over current polarity reversal
+ - #phy-cells: Must be 0. No args required.
+ - vbus-gpios: vbus gpio binding
+ - id-gpios: id gpio binding
+
+Refer to phy/phy-bindings.txt for the generic PHY binding properties
+
+Example:
+	usbdrd_phy: phy@66000960 {
+			#phy-cells = <0>;
+			compatible = "brcm,ns2-drd-phy";
+			reg = <0x66000960 0x24>,
+			      <0x67012800 0x4>,
+			      <0x6501d148 0x4>,
+			      <0x664d0700 0x4>;
+			reg-names = "icfg", "rst-ctrl",
+				    "crmu-ctrl", "usb2-strap";
+			id-gpios = <&gpio_g 30 0>;
+			vbus-gpios = <&gpio_g 31 0>;
+	};
-- 
2.1.0

[toc] | [prev] | [standalone]

Back to top | Article view | linux.kernel

csiph-web