Hi, I jut noticed that the used GPIOs for leds-gpio do not have an actual label which is visible in debugfs (/sys/kernel/debug/gpio): > gpiochip4: GPIOs 368-383, parent: spi/spi0.2, mcp23s17, can sleep: > gpio-369 P0.1 (? ) out hi > gpio-370 P0.2 (? ) out lo > gpio-371 P0.3 (? ) out lo > gpio-372 P0.4 (? ) out lo > gpio-373 P0.5 (? ) out lo > gpio-374 P0.6 (? ) out lo The reason is that the call to devm_get_gpiod_from_child() in gpio_leds_create() eventually calls "gpiod_request(desc, NULL);" in fwnode_get_named_gpiod. So no label attached to GPIO, hence "?" output. As we have already a gpiod in create_gpio_led(), devm_gpio_request_one() with the proper label is not called. I don't know much of that code, so what would be needed to have a proper GPIO label? And how? Best regards, Alexander Stein -- Dipl.-Inf. Alexander Stein SYS TEC electronic GmbH alexander.stein@xxxxxxxxxxxxxxxxxxxxx Legal and Commercial Address: Am Windrad 2 08468 Heinsdorfergrund Germany Office: +49 (0) 3765 38600-0 Fax: +49 (0) 3765 38600-4100 Managing Directors: Director Technology/CEO: Dipl.-Phys. Siegmar Schmidt; Director Commercial Affairs/COO: Dipl. Ing. (FH) Armin von Collrepp Commercial Registry: Amtsgericht Chemnitz, HRB 28082; USt.-Id Nr. DE150534010 -- To unsubscribe from this list: send the line "unsubscribe linux-leds" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
