APPLIED [OEM-OSP1-B] Re: [PATCH 0/1][SRU][B][D][E][F] Dell AIO can't adjust brightness
Timo Aaltonen
tjaalton at ubuntu.com
Thu Jan 16 14:09:41 UTC 2020
On 16.1.2020 15.58, Stefan Bader wrote:
> On 10.01.20 07:08, Timo Aaltonen wrote:
>> On 8.1.2020 9.59, AceLan Kao wrote:
>>> BugLink: https://bugs.launchpad.net/bugs/1858761
>>>
>>> [Impact]
>>> Found on new platforms that UART require more than 1 second to respond
>>> commands in the first 10 seconds after booted.
>>> And the first command we send to scalar is dell_uart_get_scalar_status()
>>> to tell if scalar is in charge of the backlight, and it always fails to get
>>> response because of timeout.
>>>
>>> [Fix]
>>> Adding retry and increasing read timeout for dell_uart_get_scalar_status()
>>>
>>> [Test]
>>> Verified on the target Dell AIO, it can now read the response from scalar.
>>>
>>> [Regression Potential]
>>> Low, adding retry and increasing read timeout doesn't change the code flow.
>>>
>>> AceLan Kao (1):
>>> UBUNTU: SAUCE: platform/x86: dell-uart-backlight: add retry for get
>>> scalar status
>>>
>>> drivers/platform/x86/dell-uart-backlight.c | 8 ++++++--
>>> 1 file changed, 6 insertions(+), 2 deletions(-)
>>>
>>
>> applied to osp1 oem-next, thanks
>>
> You should not apply anything without having a bug task for it... just saying.
good point, forgot to update the status back then
--
t
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