linux-kernel - Re: [PATCH v1] platform/chrome: cros_usbpd_notify: defer probe when parent EC driver isn't ready

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Message-ID: <CAMFSAReHEt7nUZvsnB5pyPTaddSVSdtiiX-RLpY4MfKq3qfX1Q@mail.gmail.com>
Date: Thu, 2 Oct 2025 12:42:09 -0700
From: Jameson Thies <jthies@...gle.com>
To: Tzung-Bi Shih <tzungbi@...nel.org>
Cc: akuchynski@...omium.org, bleung@...omium.org, abhishekpandit@...omium.org, 
	chrome-platform@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] platform/chrome: cros_usbpd_notify: defer probe when
 parent EC driver isn't ready

> > +#define CREC_DRV_NAME "GOOG0004"
>
> What does CREC stand for?

CrOS EC. "CREC" is the device name used in the ACPI definition for GOOG0004.

>
> Does it make more sense to use fwnode_get_parent()?

I was initially planning to use fwnode_get_parent(), but calling that
from cros_usbpd_notify.c would require an ABI update to build for
android.