On Mon, May 24, 2021 at 1:34 AM Sander Vanheule <sander@xxxxxxxxxxxxx> wrote: > > Both single and bi-color scanning modes are supported. The driver will > verify that the addresses are valid for the current mode, before > registering the LEDs. LEDs can be turned on, off, or toggled at one of > six predefined rates from 40ms to 1280ms. > > Implements a platform device for use as a child device with RTL8231 MFD, > and uses the parent regmap to access the required registers. ... > + This options enables support for using the LED scanning matrix output option > + of the RTL8231 GPIO and LED expander chip. > + When built as a module, this module will be named leds-rtl8231. ... > + interval_ms = 500; Does this deserve a #define? ... > + ret = fwnode_property_count_u32(fwnode, "reg"); > + if (ret < 0) > + return ret; > + if (ret != 2) > + return -ENODEV; I would say -EINVAL, but -ENODEV is similarly okay. ... > + int err; ret or err? Be consistent across a single driver. ... > + int err; Ditto. -- With Best Regards, Andy Shevchenko