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lib: utils/gpio: Add generic GPIO configuration library

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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>
This commit is contained in:
Anup Patel
2021-07-13 11:23:42 +08:00
committed by Anup Patel
parent e931f387b2
commit 36b8effe4a
3 changed files with 225 additions and 0 deletions
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lib/utils/gpio/objects.mk Normal file
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#
# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (c) 2021 Western Digital Corporation or its affiliates.
#
# Authors:
# Anup Patel <anup.patel@wdc.com>
#
libsbiutils-objs-y += gpio/gpio.o