[PATCH] tty: serial: samsung_tty: Fix suspend/resume on S5L

[Hector Martin]

On 02/05/2022 20.44, Greg Kroah-Hartman wrote:
> On Mon, May 02, 2022 at 06:25:05PM +0900, Hector Martin wrote:
>> We were restoring the IRQ masks then clearing them again, because
>> ucon_mask wasn't set properly. Adding that makes suspend/resume
>> work as intended.
>>
>> Signed-off-by: Hector Martin <marcan at marcan.st>
>> ---
>>  drivers/tty/serial/samsung_tty.c | 1 +
>>  include/linux/serial_s3c.h       | 3 +++
>>  2 files changed, 4 insertions(+)
> 
> Does this fix a specific older commit?
> 
> And should it be backported to older stable kernels?

It does fix the commit that introduced this device support in general; I
can add a Fixes line for that. I don't think anyone cares about
backporting though, since there are other fairly critical devices that
don't have support outright and there's still work to do before
suspend/resume is generally usable on these machines.

-- 
Hector Martin (marcan at marcan.st)
Public Key: https://mrcn.st/pub