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David Lechner <dlechner@baylibre.com> says: I wanted to do some quick tests to make sure gpios were working without having to dig out a schematic. Which means I didn't want to set any GPIO as an output first without checking. So the main point here is the last patch which allows gpio_op_pin to be optional and skip the test instead of failing with exception. This works similar to several other config options that are already optional in this module. I also noticed a few easy things to clean up while I was looking at the file, so there are a couple of extra patches for that. Link: https://lore.kernel.org/r/20260312-test-gpio-cleanup-v1-0-bcf549671eb1@baylibre.com