[PATCH 0/1][SRU][OEM-OSP1-B][B][E][F] Another Dell AIO backlight issue

[AceLan Kao]

BugLink: https://bugs.launchpad.net/bugs/1863880

[Impact]
The scalar which controls the backlight sometimes doesn't respond the first
command, so driver can't determinate whether this scalar is in charge of
the backlight or not.

[Fix]
Move the retry block not only to read the response, but also includes
write command, so that it re-send the command, too.

[Test]
Verified on the buggy Dell AIO, it passes 30 times and should be more
reliable.

[Regression Potential]
Low, there is no code flow change, just move the retry block to include
both write and read command.

AceLan Kao (1):
  UBUNTU: SAUCE: platform/x86: dell-uart-backlight: move retry block

 drivers/platform/x86/dell-uart-backlight.c | 23 +++++++++++-----------
 1 file changed, 11 insertions(+), 12 deletions(-)

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2.17.1