From: Jacky Huang <jackyhuang@nvidia.com>
To: Danny Kaehn <danny.kaehn@plexus.com>
Cc: Jacky Huang <jackyhuang@nvidia.com>,
Benjamin Tissoires <bentiss@kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Andi Shyti <andi.shyti@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
"Jiri Kosina" <jikos@kernel.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
"Ethan Twardy" <ethan.twardy@plexus.com>,
Bartosz Golaszewski <brgl@kernel.org>,
"Leo Huang" <leohu@nvidia.com>, Arun D Patil <arundp@nvidia.com>,
Willie Thai <wthai@nvidia.com>,
Ting-Kai Chen <tingkaic@nvidia.com>,
<linux-input@vger.kernel.org>, <linux-i2c@vger.kernel.org>,
<linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v14 1/2] HID: cp2112: Add fwnode support
Date: Thu, 4 Jun 2026 04:46:53 +0900 [thread overview]
Message-ID: <20260603194719.403557-1-jackyhuang@nvidia.com> (raw)
In-Reply-To: <20260520-cp2112-dt-v14-1-b1b4b6734b6f@plexus.com>
Hi Danny,
Thank you for all your work bringing this through so many revisions, and
I am glad to help by testing it.
I tested this on an AST2600-based OpenBMC platform (NVIDIA Vera Rubin)
that has several CP2112s. With this patch, a CP2112 whose device-tree
"i2c" subnode declares downstream I2C devices (PCA9555 expanders) has
them auto-instantiated by i2c-core: they appeared on the adapter's I2C
bus with their gpio-line-names. CP2112s with an empty "i2c" node
registered their adapters but instantiated no children, as expected.
Tested-by: Jacky Huang <jackyhuang@nvidia.com>
next prev parent reply other threads:[~2026-06-03 19:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-20 16:13 [PATCH v14 0/2] Firmware Support for USB-HID Devices and CP2112 Danny Kaehn
2026-05-20 16:13 ` [PATCH v14 1/2] HID: cp2112: Add fwnode support Danny Kaehn
2026-06-01 19:18 ` Andy Shevchenko
2026-06-03 19:46 ` Jacky Huang [this message]
2026-06-04 12:45 ` Bartosz Golaszewski
2026-05-20 16:13 ` [PATCH v14 2/2] HID: cp2112: Configure I2C bus speed from firmware Danny Kaehn
2026-06-10 15:35 ` [PATCH v14 0/2] Firmware Support for USB-HID Devices and CP2112 Jiri Kosina
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