3 Commits

Author	SHA1	Message	Date
Inochi Amaoto	d962db2807	lib: utils/gpio: respect flag GPIO_FLAG_ACTIVE_LOW ... "gpio-poweroff" and "gpio-restart" always set gpio to high to active the function, but some chips need a low signal to active. Fortunately, it can be achieved by setting GPIO_FLAG_ACTIVE_LOW for the gpio. Implement this flag support for the gpio library so the gpio reset can function well. Signed-off-by: Inochi Amaoto <inochiama@outlook.com> Reviewed-by: Anup Patel <anup@brainfault.org>	2024-05-23 15:42:52 +05:30
Nikita Shubin	0979ffda12	lib: utils/gpio: use list for drivers ... Convert static array to sbi_list. This removes size limitation, makes add/remove more efficient and saves space. Signed-off-by: Nikita Shubin <n.shubin@yadro.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>	2021-11-03 15:57:56 +05:30
Anup Patel	36b8effe4a	lib: utils/gpio: Add generic GPIO configuration library ... We add generic GPIO configuration library which is independent of hardware description format (FDT or ACPI). The OpenSBI platform support or GPIO drivers can register GPIO chip instances which can be discovered and used by different GPIO clients. Each GPIO chip instance has a unique ID which can be used by GPIO clients to lookup GPIO chip instance. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>	2021-07-17 11:42:51 +05:30