Messages in this thread | | | Subject | Re: [PATCH] serdev: Don't claim unsupported serial devices | From | Hans de Goede <> | Date | Thu, 19 Dec 2019 09:30:38 +0100 |
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Hi,
On 19-12-2019 01:37, Punit Agrawal wrote: > Hans de Goede <hdegoede@redhat.com> writes: > >> Hi, >> >> On 18-12-2019 07:56, Punit Agrawal wrote: >>> Serdev sub-system claims all serial devices that are not already >>> enumerated. As a result, no device node is created for serial port on >>> certain boards such as the Apollo Lake based UP2. This has the >>> unintended consequence of not being able to raise the login prompt via >>> serial connection. >>> >>> Introduce a blacklist to reject devices that should not be treated as >>> a serdev device. Add the Intel HS UART peripheral ids to the blacklist >>> to bring back serial port on SoCs carrying them. >>> >>> Cc: stable@vger.kernel.org >>> Signed-off-by: Punit Agrawal <punit1.agrawal@toshiba.co.jp> >>> Cc: Rob Herring <robh@kernel.org> >>> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> >>> Cc: Johan Hovold <johan@kernel.org> >>> Cc: Hans de Goede <hdegoede@redhat.com> >> >> Thank you for addressing this long standing issue. > > I am surprised there hasn't been more people complaining! Maybe even on > x86 mainline isn't that widely used on development boards.
I think it is also a case of there not being that manu x86 development boards.
Regards,
Hans
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