linux-kernel - Re: [PATCH v5 2/5] usb: dwc3: add dis_u2_freeclk_exists

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Date:	Thu, 30 Jun 2016 21:32:37 -0500
From:	Rob Herring <robh@...nel.org>
To:	William Wu <william.wu@...k-chips.com>
Cc:	gregkh@...uxfoundation.org, balbi@...nel.org, heiko@...ech.de,
	linux-rockchip@...ts.infradead.org, briannorris@...gle.com,
	dianders@...gle.com, kever.yang@...k-chips.com,
	huangtao@...k-chips.com, frank.wang@...k-chips.com,
	eddie.cai@...k-chips.com, John.Youn@...opsys.com,
	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
	sergei.shtylyov@...entembedded.com, mark.rutland@....com,
	devicetree@...r.kernel.org
Subject: Re: [PATCH v5 2/5] usb: dwc3: add dis_u2_freeclk_exists_quirk

On Thu, Jun 30, 2016 at 07:12:53PM +0800, William Wu wrote:
> Add a quirk to clear the GUSB2PHYCFG.U2_FREECLK_EXISTS bit,
> which specifies whether the USB2.0 PHY provides a free-running
> PHY clock, which is active when the clock control input is active.
> 
> Signed-off-by: William Wu <william.wu@...k-chips.com>
> ---
> Changes in v5:
> - None
> 
> Changes in v4:
> - rebase on top of balbi testing/next, remove pdata (balbi)
> 
> Changes in v3:
> - None
> 
> Changes in v2:
> - None
> 
>  Documentation/devicetree/bindings/usb/dwc3.txt | 3 +++
>  drivers/usb/dwc3/core.c                        | 5 +++++
>  drivers/usb/dwc3/core.h                        | 5 +++++
>  3 files changed, 13 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt
> index 7d7ce08..1ada121 100644
> --- a/Documentation/devicetree/bindings/usb/dwc3.txt
> +++ b/Documentation/devicetree/bindings/usb/dwc3.txt
> @@ -39,6 +39,9 @@ Optional properties:
>  			disabling the suspend signal to the PHY.
>   - snps,dis_rxdet_inp3_quirk: when set core will disable receiver detection
>  			in PHY P3 power state.
> + - snps,dis_u2_freeclk_exists_quirk: when set, clear the u2_freeclk_exists

Use '-', not '_'.

> +			in GUSB2PHYCFG, specify that USB2 PHY doesn't provide
> +			a free-running PHY clock.
>   - snps,is-utmi-l1-suspend: true when DWC3 asserts output signal
>  			utmi_l1_suspend_n, false when asserts utmi_sleep_n
>   - snps,hird-threshold: HIRD threshold