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From: Neil Armstrong <narmstrong@baylibre.com>
To: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Cc: Serge Semin <fancer.lancer@gmail.com>,
	Mathias Nyman <mathias.nyman@intel.com>,
	Felipe Balbi <balbi@kernel.org>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Rob Herring <robh+dt@kernel.org>,
	Kevin Hilman <khilman@baylibre.com>,
	Jerome Brunet <jbrunet@baylibre.com>,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>,
	Pavel Parkhomenko <Pavel.Parkhomenko@baikalelectronics.ru>,
	Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Manu Gautam <mgautam@codeaurora.org>,
	Roger Quadros <rogerq@ti.com>,
	Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>,
	linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-amlogic@lists.infradead.org
Subject: Re: [PATCH 15/18] dt-bindings: usb: meson-g12a-usb: Discard FL-adj property
Date: Mon, 12 Oct 2020 17:29:05 +0200
Message-ID: <8e026a39-53e3-3cbc-cd52-e3dbc9d5c20f@baylibre.com> (raw)
In-Reply-To: <20201012151326.peu4yq6fhmi5utnb@mobilestation>

On 12/10/2020 17:13, Serge Semin wrote:
> On Mon, Oct 12, 2020 at 05:01:43PM +0200, Neil Armstrong wrote:
>> Hi,
>>
>> On 12/10/2020 16:22, Serge Semin wrote:
>>> On Mon, Oct 12, 2020 at 09:54:25AM +0200, Neil Armstrong wrote:
>>>> Hi,
>>>>
>>>> On 11/10/2020 00:41, Serge Semin wrote:
>>>>> An empty snps,quirk-frame-length-adjustment won't cause any change
>>>>> performed by the driver. Moreover the DT schema validation will fail,
>>>>> since it expects the property being assigned with some value. So just
>>>>> discard the property declaration then from the example.
>>>>>
>>>>> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
>>>>>
>>>>> ---
>>>>>
>>>>> Note the same problem is in the DT source file
>>>>> arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi .
>>>>> ---
>>>>>  .../devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml     | 1 -
>>>>>  1 file changed, 1 deletion(-)
>>>>>
>>>>> diff --git a/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml b/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
>>>>> index 5b04a7dfa018..88184d7e26cc 100644
>>>>> --- a/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
>>>>> +++ b/Documentation/devicetree/bindings/usb/amlogic,meson-g12a-usb-ctrl.yaml
>>>>> @@ -209,6 +209,5 @@ examples:
>>>>>                interrupts = <30>;
>>>>>                dr_mode = "host";
>>>>>                snps,dis_u2_susphy_quirk;
>>>>> -              snps,quirk-frame-length-adjustment;
>>>>>            };
>>>>>      };
>>>>>
>>>>
>>>
>>>> Thanks for reporting this, actually the fladj must be 0x20 on this hw,
>>>> but we do set this on the PHY side, so we can let the dwc3 side 0 here.
>>>
>>> I can convert this patch to initializing the "snps,quirk-frame-length-adjustment"
>>> property with 0x20 value instead. Since most likely I'll have to send a v2/v3/etc
>>> of this patchset, that modification won't be too much work to do. What do you think?
>>
> 
>> Yes, do this please,
> 
> Ok. Shall I preserve your Acked-by tag in the new patch or you'd prefer to
> review it first?

Yes, preserve it,
Thanks,
Neil

>> anyway it's only an example so it's ok.
> 
> Actually examples are also validated by "make dt_binding_check". That's why I
> had to fix the amlogic,meson-g12a-usb-ctrl example for at least so the new
> snps,dwc3.yaml DT schema wouldn't break that full DT bindings
> validation procedure.)
> 
> -Sergey
> 
>>
>>>
>>> Anyway please note, that I've fixed the improper property usage in the DT schema
>>> example only. "snps,quirk-frame-length-adjustment" defined as boolean still
>>> persists in the DTS file: arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi .
>>> So if you ever try to validate that dts file with "make dtbs_check" scenario, it
>>> will fail.
>>
>> Yes, I'll push a fix to pass the dtbs_check when this is merged.
>>
>> Thanks,
>> Neil
>>
>>>
>>> -Sergey
>>>
>>>>
>>>> Acked-by: Neil Armstrong <narmstrong@baylibre.com>
>>>>
>>>> Neil
>>>>
>>


  reply index

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-10 22:41 [PATCH 00/18] dt-bindings: usb: Add generic USB HCD, xHCI, DWC USB3 DT schema Serge Semin
2020-10-10 22:41 ` [PATCH 01/18] dt-bindings: usb: usb-hcd: Convert generic USB properties to " Serge Semin
2020-10-13 12:14   ` Rob Herring
2020-10-13 14:00     ` Serge Semin
2020-10-10 22:41 ` [PATCH 02/18] dt-bindings: usb: usb-hcd: Add "wireless" maximum-speed property value Serge Semin
2020-10-11 14:42   ` Greg Kroah-Hartman
2020-10-11 17:53     ` Serge Semin
2020-10-12 15:41       ` Greg Kroah-Hartman
2020-10-12 21:19         ` Serge Semin
2020-10-10 22:41 ` [PATCH 03/18] dt-bindings: usb: usb-hcd: Add "otg-rev" property restriction Serge Semin
2020-10-10 22:41 ` [PATCH 04/18] dt-bindings: usb: usb-hcd: Add "ulpi/serial/hsic" PHY types Serge Semin
2020-10-11  8:49   ` Sergei Shtylyov
2020-10-11 18:03     ` Serge Semin
2020-10-10 22:41 ` [PATCH 05/18] dt-bindings: usb: usb-hcd: Add "tpl-support" property Serge Semin
2020-10-11  8:47   ` Sergei Shtylyov
2020-10-11 18:05     ` Serge Semin
2020-10-11 18:06     ` Serge Semin
2020-10-10 22:41 ` [PATCH 06/18] dt-bindings: usb: usb-hcd: Add generic "usb-phy" property Serge Semin
2020-10-10 22:41 ` [PATCH 07/18] dt-bindings: usb: Convert xHCI bindings to DT schema Serge Semin
2020-10-13 12:30   ` Rob Herring
2020-10-13 14:29     ` Serge Semin
2020-10-10 22:41 ` [PATCH 08/18] dt-bindings: usb: xhci: Add Broadcom STB v2 compatible device Serge Semin
2020-10-10 22:41 ` [PATCH 09/18] dt-bindings: usb: renesas-xhci: Refer to the usb-xhci.yaml file Serge Semin
2020-10-10 22:41 ` [PATCH 10/18] dt-bindings: usb: Convert DWC USB3 bindings to DT schema Serge Semin
2020-10-13 12:36   ` Rob Herring
2020-10-13 15:16     ` Serge Semin
2020-10-10 22:41 ` [PATCH 11/18] dt-bindings: usb: dwc3: Add interrupt-names property support Serge Semin
2020-10-11  8:53   ` Sergei Shtylyov
2020-10-11 18:09     ` Serge Semin
2020-10-10 22:41 ` [PATCH 12/18] dt-bindings: usb: dwc3: Add synopsys,dwc3 compatible string Serge Semin
2020-10-10 22:41 ` [PATCH 13/18] dt-bindings: usb: dwc3: Add Tx De-emphasis restrictions Serge Semin
2020-10-11  8:56   ` Sergei Shtylyov
2020-10-11 18:14     ` Serge Semin
2020-10-10 22:41 ` [PATCH 14/18] dt-bindings: usb: dwc3: Add Frame Length Adj restrictions Serge Semin
2020-10-13 12:38   ` Rob Herring
2020-10-13 15:45     ` Serge Semin
2020-10-10 22:41 ` [PATCH 15/18] dt-bindings: usb: meson-g12a-usb: Discard FL-adj property Serge Semin
2020-10-12  7:54   ` Neil Armstrong
2020-10-12 14:22     ` Serge Semin
2020-10-12 15:01       ` Neil Armstrong
2020-10-12 15:13         ` Serge Semin
2020-10-12 15:29           ` Neil Armstrong [this message]
2020-10-10 22:41 ` [PATCH 16/18] dt-bindings: usb: meson-g12a-usb: Validate DWC2/DWC3 sub-nodes Serge Semin
2020-10-12  7:38   ` Neil Armstrong
2020-10-13 12:42   ` Rob Herring
2020-10-13 15:50     ` Serge Semin
2020-10-10 22:41 ` [PATCH 17/18] dt-bindings: usb: keystone-dwc3: Validate DWC3 sub-node Serge Semin
2020-10-11  9:04   ` Sergei Shtylyov
2020-10-11 18:18     ` Serge Semin
2020-10-10 22:41 ` [PATCH 18/18] dt-bindings: usb: qcom,dwc3: " Serge Semin

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