On Tue, Jun 30, 2020 at 7:11 PM Sungbo Eo wrote:
>
> Thanks for all the reviews! I've updated the patch, please have a look.
>
> And I have something to ask.
>
> # echo 1 > gpio408/value
> # cat gpio408/value
> cat: read error: I/O error
> # cat gpio408/direction
> out
> # echo out > gpio408/direc
Thanks for all the reviews! I've updated the patch, please have a look.
And I have something to ask.
# echo 1 > gpio408/value
# cat gpio408/value
cat: read error: I/O error
# cat gpio408/direction
out
# echo out > gpio408/direction
# echo in > gpio408/direction
[ 91.006691] gpio-408 (sysfs): g
On Tue, Jun 30, 2020 at 12:28 PM Bartosz Golaszewski
wrote:
> On Thu, Jun 25, 2020 at 9:58 AM Sungbo Eo wrote:
> > +static const struct of_device_id pca9570_of_match_table[] = {
> > + { .compatible = "nxp,pca9570" },
> > + { /* sentinel */ }
> > +};
> > +MODULE_DEVICE_TABLE(of, pca95
On Thu, Jun 25, 2020 at 9:58 AM Sungbo Eo wrote:
>
> NXP PCA9570 is 4-bit I2C GPO expander without interrupt functionality.
> Its ports are controlled only by a data byte without register address.
>
> As there is no other driver similar enough to be adapted for it, a new
> driver is introduced her
Hi Sungbo,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on gpio/for-next]
[also build test ERROR on v5.8-rc2 next-20200625]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use as documented in
https://g
Hi Sungbo,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on gpio/for-next]
[also build test ERROR on v5.8-rc2 next-20200625]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use as documented in
https://g
On Thu, Jun 25, 2020 at 10:59 AM Sungbo Eo wrote:
>
> NXP PCA9570 is 4-bit I2C GPO expander without interrupt functionality.
> Its ports are controlled only by a data byte without register address.
>
> As there is no other driver similar enough to be adapted for it, a new
> driver is introduced he
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