Re: [PATCH v3 2/3] usb: dwc3: Add Qualcomm DWC3 glue driver

From: Manu Gautam
Date: Tue May 08 2018 - 00:07:00 EST

On 5/5/2018 12:18 AM, Manu Gautam wrote:
> DWC3 controller on Qualcomm SOCs has a Qscratch wrapper.
> Some of its uses are described below resulting in need to
> have a separate glue driver instead of using dwc3-of-simple:
> - It exposes register interface to override vbus-override
> and lane0-pwr-present signals going to hardware. These
> must be updated in peripheral mode for DWC3 if vbus lines
> are not connected to hardware block. Otherwise RX termination
> in SS mode or DP pull-up is not applied by device controller.
> - pwr_events_irq_stat support to check if USB2 PHY is in L2 state
> before glue driver proceeds with suspend.
> - Support for wakeup interrupts lines that are asserted whenever
> there is any wakeup event on USB3 or USB2 bus.
> - Support to replace pip3 clock going to DWC3 with utmi clock
> for hardware configuration where SSPHY is not used with DWC3.
> Signed-off-by: Manu Gautam <mgautam@xxxxxxxxxxxxxx>
> +static const struct of_device_id dwc3_qcom_of_match[] = {
> + { .compatible = "qcom,dwc3" },

I should also add SOC specific compatibles.
Will do that in next patch.

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