Re: [PATCH v6 1/2] gpio: add GPO driver for PCA9570

2020-07-16 Thread Linus Walleij
On Thu, Jul 9, 2020 at 3:48 PM Sungbo Eo wrote: > NXP PCA9570 is a 4-bit I2C GPO expander without interrupt functionality. > Its ports are controlled only by a data byte without register address. > > Datasheet: https://www.nxp.com/docs/en/data-sheet/PCA9570.pdf > Signed-off-by: Sungbo Eo > --- >

Re: [PATCH v6 1/2] gpio: add GPO driver for PCA9570

2020-07-09 Thread Andy Shevchenko
On Thu, Jul 9, 2020 at 4:48 PM Sungbo Eo wrote: > > NXP PCA9570 is a 4-bit I2C GPO expander without interrupt functionality. > Its ports are controlled only by a data byte without register address. > LGTM, thanks! Reviewed-by: Andy Shevchenko > Datasheet: https://www.nxp.com/docs/en/data-sheet

[PATCH v6 1/2] gpio: add GPO driver for PCA9570

2020-07-09 Thread Sungbo Eo
NXP PCA9570 is a 4-bit I2C GPO expander without interrupt functionality. Its ports are controlled only by a data byte without register address. Datasheet: https://www.nxp.com/docs/en/data-sheet/PCA9570.pdf Signed-off-by: Sungbo Eo --- v6: * removed client * re-added mutex * removed template_chip