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There are still a handful of ancient mips/armv5/sh boards that use the gpio_led:gpio member to pass an old-style gpio number, but all modern users have been converted to gpio descriptors. While the CONFIG_GPIOLIB_LEGACY option that guards devm_gpio_request_one() and related helpers is currently turned on in all kernel builds, the plan is to only enable it on the few platforms that actually pass gpio numbers in any platform_data. Split out the legacy portion of the platform_data handling into a custom helper function that is guarded with in #ifdef block, to allow the the leds-gpio driver to compile cleanly when CONFIG_GPIOLIB_LEGACY gets turned off. Once the last user is converted, this function can be removed. Link: https://lore.kernel.org/all/e9252384-a55c-4a91-9c61-06e05a0b2ce4@app.fastmail.com/ Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Linus Walleij <linusw@kernel.org> Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> # for input Link: https://patch.msgid.link/20260710211854.1371746-4-arnd@kernel.org Signed-off-by: Lee Jones <lee@kernel.org>