From: Krzysztof Kozlowski <krzk@kernel.org>
To: Jung Daehwan <dh10.jung@samsung.com>
Cc: Mathias Nyman <mathias.nyman@intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
"open list:USB XHCI DRIVER" <linux-usb@vger.kernel.org>,
open list <linux-kernel@vger.kernel.org>,
Howard Yen <howardyen@google.com>,
Jack Pham <jackp@codeaurora.org>, Puma Hsu <pumahsu@google.com>,
"J . Avila" <elavila@google.com>,
sc.suh@samsung.com
Subject: Re: [PATCH v3 4/4] usb: host: add xhci-exynos driver
Date: Wed, 23 Mar 2022 09:26:13 +0100 [thread overview]
Message-ID: <0366bcc4-b38d-db36-22d6-e6f33af9dbef@kernel.org> (raw)
In-Reply-To: <20220323023420.GC19041@ubuntu>
On 23/03/2022 03:34, Jung Daehwan wrote:
> On Tue, Mar 22, 2022 at 06:10:00PM +0100, Krzysztof Kozlowski wrote:
>> On 21/03/2022 09:59, Daehwan Jung wrote:
>>> This driver supports USB Audio offload with Co-processor.
>>
>> One do you need one more XHCI driver? How does it differ from existing
>> and why existing cannot be extended?
>
> I have some exynos specific features and that's because need own driver.
> It's not good to modify other XHCI driver for my features.
>
> Additinally, I've been developing some features with other IP or Co-Processors.
> Extending is not enough to cover them and I think owning driver is also better
> on structural view.
This reason is not good enough because it's not visible that you cannot
extend existing drivers.
Best regards,
Krzysztof
next prev parent reply other threads:[~2022-03-23 8:26 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20220321090202epcas2p1bfa78db059c1f6f6acbbb015e4bf991c@epcas2p1.samsung.com>
2022-03-21 8:59 ` [PATCH v3 0/4] support USB offload feature Daehwan Jung
[not found] ` <CGME20220321090204epcas2p31e39a4b8b6fc803ceecac5d19e6e39e9@epcas2p3.samsung.com>
2022-03-21 8:59 ` [PATCH v3 1/4] usb: host: export symbols for xhci hooks usage Daehwan Jung
2022-03-21 15:35 ` kernel test robot
2022-03-22 17:12 ` Krzysztof Kozlowski
2022-03-23 1:22 ` Jung Daehwan
[not found] ` <CGME20220321090204epcas2p3b2be5c6b131240e408d12d40c517395c@epcas2p3.samsung.com>
2022-03-21 8:59 ` [PATCH v3 2/4] usb: host: add xhci hooks for USB offload Daehwan Jung
2022-03-21 17:00 ` Mathias Nyman
2022-03-22 2:14 ` Jung Daehwan
[not found] ` <CGME20220321090205epcas2p4f3698a0aa49d251c0a8f008e85d968ba@epcas2p4.samsung.com>
2022-03-21 8:59 ` [PATCH v3 3/4] usb: host: add some to xhci overrides " Daehwan Jung
[not found] ` <CGME20220321090205epcas2p15ac16f281554b663062e0e31666defab@epcas2p1.samsung.com>
2022-03-21 8:59 ` [PATCH v3 4/4] usb: host: add xhci-exynos driver Daehwan Jung
2022-03-21 15:45 ` Bjørn Mork
2022-03-22 2:30 ` Jung Daehwan
2022-03-21 16:26 ` kernel test robot
2022-03-21 16:37 ` kernel test robot
2022-03-22 17:10 ` Krzysztof Kozlowski
2022-03-23 2:34 ` Jung Daehwan
2022-03-23 8:26 ` Krzysztof Kozlowski [this message]
2022-03-29 2:35 ` Jung Daehwan
2022-03-22 17:16 ` Krzysztof Kozlowski
2022-03-23 5:17 ` Jung Daehwan
2022-03-23 8:34 ` Krzysztof Kozlowski
2022-03-21 9:14 ` [PATCH v3 0/4] support USB offload feature Greg Kroah-Hartman
2022-03-21 9:24 ` Jung Daehwan
2022-03-21 9:32 ` Greg Kroah-Hartman
2022-03-21 10:06 ` Jung Daehwan
2022-03-21 10:16 ` Greg Kroah-Hartman
2022-03-22 2:17 ` Jung Daehwan
2022-03-22 17:05 ` Krzysztof Kozlowski
2022-03-23 1:31 ` Jung Daehwan
2022-03-23 8:25 ` Krzysztof Kozlowski
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