Thread (21 messages) 21 messages, 3 authors, 2016-12-20

Re: [PATCH v2 1/4] dt-bindings: phy: Add support for QUSB2 phy

From: Vivek Gautam <hidden>
Date: 2016-11-29 05:21:21
Also in: linux-arm-msm, lkml

Hi Rob,


On Mon, Nov 28, 2016 at 7:49 PM, Rob Herring [off-list ref] wrote:

Thanks for reviewing the patch.
On Tue, Nov 22, 2016 at 05:32:40PM +0530, Vivek Gautam wrote:
quoted
Qualcomm chipsets have QUSB2 phy controller that provides
HighSpeed functionality for DWC3 controller.
Adding dt binding information for the same.

Signed-off-by: Vivek Gautam <redacted>
---

Changes since v1:
 - New patch, forked out of the original driver patch:
   "phy: qcom-qusb2: New driver for QUSB2 PHY on Qcom chips"
 - Updated dt bindings to remove 'hstx-trim-bit-offset' and
   'hstx-trim-bit-len' bindings.

 .../devicetree/bindings/phy/qcom-qusb2-phy.txt     | 55 ++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/qcom-qusb2-phy.txt
diff --git a/Documentation/devicetree/bindings/phy/qcom-qusb2-phy.txt b/Documentation/devicetree/bindings/phy/qcom-qusb2-phy.txt
new file mode 100644
index 0000000..38c8b30
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom-qusb2-phy.txt
@@ -0,0 +1,55 @@
+Qualcomm QUSB2 phy controller
+=============================
+
+QUSB2 controller supports LS/FS/HS usb connectivity on Qualcomm chipsets.
+
+Required properties:
+ - compatible: compatible list, contains "qcom,msm8996-qusb2-phy".
+ - reg: offset and length of the PHY register set.
+ - #phy-cells: must be 0.
+
+ - clocks: a list of phandles and clock-specifier pairs,
+        one for each entry in clock-names.
+ - clock-names: must be "cfg_ahb" for phy config clock,
+                     "ref_clk" for 19.2 MHz ref clk,
+                     "ref_clk_src" reference clock source.
+                     "iface" for phy interface clock (Optional).
+
+ - vdd-phy-supply: Phandle to a regulator supply to PHY core block.
+ - vdda-pll-supply: Phandle to 1.8V regulator supply to PHY refclk pll block.
+ - vdda-phy-dpdm: Phandle to 3.1V regulator supply to Dp/Dm port signals.
Needs '-supply'
sure, will add.
quoted
+
+ - resets: a list of phandles and reset controller specifier pairs,
+        one for each entry in reset-names.
+ - reset-names: must be "phy" for reset of phy block.
+
+Optional properties:
+ - nvmem-cells: a list of phandles to nvmem cells that contain fused
+             tuning parameters for qusb2 phy, one for each entry
+             in nvmem-cell-names.
+ - nvmem-cell-names: must be "tune2_hstx_trim_efuse" for cell containing
+                  HS Tx trim value.
+
+ - qcom,tcsr-syscon: Phandle to TCSR syscon register region.
+
+Example:
+     hsphy: qusb2phy@7411000 {
usb-phy@...
Or may be just 'phy' for the node name, and then label could be 'usb_hs_phy'?

[...]


Thanks
Vivek

-- 
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a Linux Foundation Collaborative Project
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