Re: [PATCH] HID: i2c-hid: Prefer asynchronous probe

From: Jiri Kosina
Date: Wed Sep 09 2020 - 02:39:30 EST

On Wed, 2 Sep 2020, Douglas Anderson wrote:

> Adding printouts to the i2c_hid_probe() function shows that it takes
> quite some time. It used to take about 70 ms, but after commit
> eef4016243e9 ("HID: i2c-hid: Always sleep 60ms after I2C_HID_PWR_ON
> commands") it takes about 190 ms. This is not tons of time but it's
> not trivial. Because we haven't yet specified that we'd prefer
> asynchronous probe for this driver then, if the driver is builtin to
> the kernel, we'll wait for this driver to finish before we start
> probes for more drivers. Let's set the flag to enable asynchronous
> for this driver so that other drivers aren't blocked from probing
> until we finish.
> Since this driver can be configured as a module and modules are
> always asynchronously probed this is quite a safe change and will
> benefit anyone who has a reason to build this driver into the kernel
> instead of using it as a module.
> Signed-off-by: Douglas Anderson <dianders@xxxxxxxxxxxx>

Applied, thanks.

Jiri Kosina