Re: [PATCH v7 01/34] i2c: tegra: Make tegra_i2c_flush_fifos() usable in atomic transfer
From: Thierry Reding
Date: Mon Sep 21 2020 - 06:18:36 EST
On Wed, 09 Sep 2020 01:39:33 +0300, Dmitry Osipenko wrote:
> The tegra_i2c_flush_fifos() shouldn't sleep in atomic transfer and jiffies
> are not updating if interrupts are disabled. Let's switch to use iopoll
> API helpers for register-polling. The iopoll API provides helpers for both
> atomic and non-atomic cases.
> Note that this patch doesn't fix any known problem because normally FIFO
> is flushed at the time of starting a new transfer.
> Reviewed-by: Michał Mirosław <mirq-linux@xxxxxxxxxxxx>
> Signed-off-by: Dmitry Osipenko <digetx@xxxxxxxxx>
> drivers/i2c/busses/i2c-tegra.c | 25 ++++++++++++++++---------
> 1 file changed, 16 insertions(+), 9 deletions(-)
Tested-by: Thierry Reding <treding@xxxxxxxxxx>