On Sat, Dec 07, 2024 at 08:12:25AM +0800, Hui Wang wrote:
> Recently we found the fifo_read() and fifo_write() are broken in our
> 5.15 and 5.4 kernels after cherry-pick the commit e635f652696e
> ("serial: sc16is7xx: convert from _raw_ to _noinc_ regmap functions
> for FIFO"), that is because the reg needs to shift if we don't
> cherry-pick a prerequiste commit 3837a0379533 ("serial: sc16is7xx:
> improve regmap debugfs by using one regmap per port").
>
> Here fix it by shifting the reg as regmap_volatile() does.
>
> Signed-off-by: Hui Wang <hui.wang@xxxxxxxxxxxxx>
> ---
> drivers/tty/serial/sc16is7xx.c | 9 ++++++++-
> 1 file changed, 8 insertions(+), 1 deletion(-)
Why not take the proper upstream commit instead?
