[0/2] USB SS PHY for Qualcomm's QCS404

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  • USB SS PHY for Qualcomm's QCS404
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Jorge Ramirez-Ortiz Dec. 7, 2018, 9:55 a.m.
This set adds USB SS PHY support to Qualcomm's QCS404 SoC
The PHY is implemented using Synopsys SS PHY 1.0.0 IP

The code is based on Sriharsha Allenki's <sallenki@codeaurora.org>
original implementation.

Jorge Ramirez-Ortiz (1):
  dt-bindings: Add Qualcomm USB Super-Speed PHY bindings

Shawn Guo (1):
  phy: qualcomm: usb: Add Super-Speed PHY driver

 .../devicetree/bindings/usb/qcom,usb-ssphy.txt     |  78 +++++
 drivers/phy/qualcomm/Kconfig                       |  11 +
 drivers/phy/qualcomm/Makefile                      |   1 +
 drivers/phy/qualcomm/phy-qcom-usb-ss.c             | 340 +++++++++++++++++++++
 4 files changed, 430 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/qcom,usb-ssphy.txt
 create mode 100644 drivers/phy/qualcomm/phy-qcom-usb-ss.c

-- 
2.7.4

Comments

Jorge Ramirez-Ortiz Dec. 21, 2018, 7:40 a.m. | #1
On 12/20/18 18:37, Jack Pham wrote:
> Hi Rob, Jorge,

>

> On Thu, Dec 20, 2018 at 11:05:31AM -0600, Rob Herring wrote:

>> On Fri, Dec 07, 2018 at 10:55:57AM +0100, Jorge Ramirez-Ortiz wrote:

>>> Binding description for Qualcomm's Synopsys 1.0.0 super-speed PHY

>>> controller embedded in QCS404.

>>>

>>> Based on Sriharsha Allenki's <sallenki@codeaurora.org> original

>>> definitions.

>>>

>>> Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>

>>> Reviewed-by: Vinod Koul <vkoul@kernel.org>

>>> ---

>>>   .../devicetree/bindings/usb/qcom,usb-ssphy.txt     | 78 ++++++++++++++++++++++

>>>   1 file changed, 78 insertions(+)

>>>   create mode 100644 Documentation/devicetree/bindings/usb/qcom,usb-ssphy.txt

>>>

>>> diff --git a/Documentation/devicetree/bindings/usb/qcom,usb-ssphy.txt b/Documentation/devicetree/bindings/usb/qcom,usb-ssphy.txt

>>> new file mode 100644

>>> index 0000000..fcf4e01

>>> --- /dev/null

>>> +++ b/Documentation/devicetree/bindings/usb/qcom,usb-ssphy.txt

>>> @@ -0,0 +1,78 @@

>>> +Qualcomm Synopsys 1.0.0 SS phy controller

>>> +===========================================

>>> +

>>> +Synopsys 1.0.0 ss phy controller supports SS usb connectivity on Qualcomm

>>> +chipsets

>>> +

>>> +Required properties:

>>> +

>>> +- compatible:

>>> +    Value type: <string>

>>> +    Definition: Should contain "qcom,usb-ssphy".

>> What is "qcom,dwc3-ss-usb-phy" which already exists then?

> Uh, apparently only the bindings doc is there but the driver never

> landed. I guess it fell through the cracks nearly 4 years ago.

>

> https://lore.kernel.org/patchwork/patch/499502/

>

> Jorge, does Andy's version of this driver at all resemble what can be

> used for QCS404?


the drivers seem quite different but I'll give it a go as well and 
compare (it is my understanding that the controller is the same - I will 
have access to the hardware documentation soon to compare)

but I'll come back to you on this.

>

> Jack