Hi Marek,
On Wed, Mar 07, 2018 at 12:56:04PM +0100, Marek Szyprowski wrote:
> Executing stmfts_power_on() function lasts over 2 seconds, what
I suppose that is because of calibration that is done as part of
powering on?
> significantly slows down the boot process if driver is compiled in.
> Avoid this delay by forcing this driver to be probed asynchronously.
I do not have an objection for making the probe asynchronous, but don't
you have similar issue on resume?
>
> Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> ---
> drivers/input/touchscreen/stmfts.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/input/touchscreen/stmfts.c b/drivers/input/touchscreen/stmfts.c
> index 025bae3853cc..964f1f43f9ba 100644
> --- a/drivers/input/touchscreen/stmfts.c
> +++ b/drivers/input/touchscreen/stmfts.c
> @@ -812,6 +812,7 @@ static struct i2c_driver stmfts_driver = {
> .name = STMFTS_DEV_NAME,
> .of_match_table = of_match_ptr(stmfts_of_match),
> .pm = &stmfts_pm_ops,
> + .probe_type = PROBE_PREFER_ASYNCHRONOUS,
> },
> .probe = stmfts_probe,
> .remove = stmfts_remove,
> --
> 2.15.0
>
Thanks.
--
Dmitry
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