From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Frank Li <frank.li@nxp.com>, "shawnguo@kernel.org" <shawnguo@kernel.org>
Cc: "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"festevam@gmail.com" <festevam@gmail.com>,
"imx@lists.linux.dev" <imx@lists.linux.dev>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
"krzysztof.kozlowski+dt@linaro.org"
<krzysztof.kozlowski+dt@linaro.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
dl-linux-imx <linux-imx@nxp.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"robh+dt@kernel.org" <robh+dt@kernel.org>,
"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>
Subject: Re: [EXT] Re: [PATCH v2 1/3] dt-bindings: usb: cdns-imx8qm: add imx8qm cdns3 glue bindings
Date: Tue, 21 Mar 2023 07:37:33 +0100 [thread overview]
Message-ID: <48bdca7a-e4ec-a2e4-ff0d-dc9a08bf799e@linaro.org> (raw)
In-Reply-To: <AM6PR04MB4838FC9492065F4DBCABE60D88809@AM6PR04MB4838.eurprd04.prod.outlook.com>
On 20/03/2023 20:59, Frank Li wrote:
>>
>> The second is a good example - as you can see, there is a choice of
>> values, so they are not exactly fixed.
>>
>>>
>>> Such frequency information is necessary. We can put to dts or clock drivers.
>> The clock driver
>>
>> If this is the argument, then the answer is NAK. Sorry, but DTS is not
>> for offloading fixed stuff just because you do not want to work on
>> drivers. The same for discoverable stuff.
>>
>>> Become bigger, or dts become bigger. I think the key point is if property to
>> descript hardware information.
>>
>> You have to understand that with your binding you are not allowing to
>> any changes of these frequencies.
>
> Do you means it should be okay if one of clocks is not fixed?
We have here long discussion why does your binding require fixed
frequencies, because this is something unusual and not recommended. And
if they are really fixed, then device driver probably should make the
choice of frequencies.
>
> Previous owner already left nxp. I double checked our documents and scfw source code.
> I miss understood a clock SC_PM_CLK_MST_BUS, which actually mapped to IP's aclk, which
> ware 100Mhz to 600Mhz.
>
>>
>> Best regards,
>> Krzysztof
>
Best regards,
Krzysztof
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2023-03-21 6:38 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-16 21:27 [PATCH v2 0/3] dts: imx8qxp add cdns usb3 port Frank Li
2023-03-16 21:27 ` [PATCH v2 1/3] dt-bindings: usb: cdns-imx8qm: add imx8qm cdns3 glue bindings Frank Li
2023-03-17 9:09 ` Krzysztof Kozlowski
2023-03-17 14:55 ` [EXT] " Frank Li
2023-03-19 11:13 ` Krzysztof Kozlowski
2023-03-20 14:49 ` Frank Li
2023-03-20 15:23 ` Krzysztof Kozlowski
2023-03-20 16:22 ` Frank Li
2023-03-20 16:27 ` Krzysztof Kozlowski
2023-03-20 17:02 ` Frank Li
2023-03-20 17:28 ` Krzysztof Kozlowski
2023-03-20 19:59 ` Frank Li
2023-03-21 6:37 ` Krzysztof Kozlowski [this message]
2023-03-16 21:27 ` [PATCH v2 2/3] arm64: dts: imx8qxp: add cadence usb3 support Frank Li
2023-03-17 6:39 ` Alexander Stein
2023-03-17 15:05 ` [EXT] " Frank Li
2023-03-16 21:27 ` [PATCH v2 3/3] arm64: dts: freescale: imx8qxp-mek: enable cadence usb3 Frank Li
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=48bdca7a-e4ec-a2e4-ff0d-dc9a08bf799e@linaro.org \
--to=krzysztof.kozlowski@linaro.org \
--cc=devicetree@vger.kernel.org \
--cc=festevam@gmail.com \
--cc=frank.li@nxp.com \
--cc=imx@lists.linux.dev \
--cc=kernel@pengutronix.de \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-imx@nxp.com \
--cc=linux-kernel@vger.kernel.org \
--cc=robh+dt@kernel.org \
--cc=s.hauer@pengutronix.de \
--cc=shawnguo@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).