linux-kernel - Re: [PATCH V2] ptp: clockmatrix: Add Defer probe if firmware load fails

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Message-ID: <20230615130506.3efb333c@kernel.org>
Date:   Thu, 15 Jun 2023 13:05:06 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Sarath Babu Naidu Gaddam <sarath.babu.naidu.gaddam@....com>
Cc:     <richardcochran@...il.com>, <netdev@...r.kernel.org>,
        <simon.horman@...igine.com>, <andrew@...n.ch>,
        <linux-kernel@...r.kernel.org>, <vincent.cheng.xh@...esas.com>,
        <harini.katakam@....com>, <git@....com>
Subject: Re: [PATCH V2] ptp: clockmatrix: Add Defer probe if firmware load
 fails

On Wed, 14 Jun 2023 10:42:04 +0530 Sarath Babu Naidu Gaddam wrote:
> Clock matrix driver can be probed before the rootfs containing
> firmware/initialization .bin is available. The current driver
> throws a warning and proceeds to execute probe even when firmware
> is not ready. Instead, defer probe and wait for the .bin file to
> be available.

The first-step fix should be to try to get the FW into initramfs.
For that driver should specify MODULE_FIRMWARE(), which I don't see
here.
-- 
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