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e522ae91b8
Add constants for choosing USIv2 configuration mode in device tree. Those are further used in USI driver to figure out which value to write into SW_CONF register. Also document USIv2 IP-core bindings. Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20211204195757.8600-2-semen.protsenko@linaro.org Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
17 lines
464 B
C
17 lines
464 B
C
/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
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/*
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* Copyright (c) 2021 Linaro Ltd.
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* Author: Sam Protsenko <semen.protsenko@linaro.org>
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*
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* Device Tree bindings for Samsung Exynos USI (Universal Serial Interface).
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*/
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#ifndef __DT_BINDINGS_SAMSUNG_EXYNOS_USI_H
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#define __DT_BINDINGS_SAMSUNG_EXYNOS_USI_H
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#define USI_V2_NONE 0
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#define USI_V2_UART 1
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#define USI_V2_SPI 2
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#define USI_V2_I2C 3
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#endif /* __DT_BINDINGS_SAMSUNG_EXYNOS_USI_H */
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