linux-kernel - Re: [PATCH v5 4/5] usb: dwc3: add dis_del_phy_power_chg

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Date:	Thu, 30 Jun 2016 21:38:25 -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 4/5] usb: dwc3: add dis_del_phy_power_chg_quirk

On Thu, Jun 30, 2016 at 07:12:55PM +0800, William Wu wrote:
> Add a quirk to clear the GUSB3PIPECTL.DELAYP1TRANS bit,
> which specifies whether disable delay PHY power change
> from P0 to P1/P2/P3 when link state changing from U0
> to U1/U2/U3 respectively.
> 
> 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 | 2 ++
>  drivers/usb/dwc3/core.c                        | 5 +++++
>  drivers/usb/dwc3/core.h                        | 3 +++
>  3 files changed, 10 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/usb/dwc3.txt b/Documentation/devicetree/bindings/usb/dwc3.txt
> index 34d13a5..bd5bef0 100644
> --- a/Documentation/devicetree/bindings/usb/dwc3.txt
> +++ b/Documentation/devicetree/bindings/usb/dwc3.txt
> @@ -42,6 +42,8 @@ Optional properties:
>   - snps,dis_u2_freeclk_exists_quirk: when set, clear the u2_freeclk_exists
>  			in GUSB2PHYCFG, specify that USB2 PHY doesn't provide
>  			a free-running PHY clock.
> + - snps,dis_del_phy_power_chg_quirk: when set core will change PHY power
> +			from P0 to P1/P2/P3 without delay.

Use '-', not '_'.

>   - snps,phyif_utmi_quirk: when set core will set phyif UTMI+ interface.
>   - snps,phyif_utmi: the value to configure the core to support a UTMI+ PHY
>  			with an 8- or 16-bit interface. Value 0 select 8-bit