/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ /* * cs35l45.h -- CS35L45 ALSA SoC audio driver DT bindings header * * Copyright 2022 Cirrus Logic, Inc. */ #ifndef DT_CS35L45_H #define DT_CS35L45_H /* * cirrus,asp-sdout-hiz-ctrl * * TX_HIZ_UNUSED: TX pin high-impedance during unused slots. * TX_HIZ_DISABLED: TX pin high-impedance when all channels disabled. */ #define CS35L45_ASP_TX_HIZ_UNUSED … #define CS35L45_ASP_TX_HIZ_DISABLED … /* * Optional GPIOX Sub-nodes: * The cs35l45 node can have up to three "cirrus,gpio-ctrlX" ('X' = [1,2,3]) * sub-nodes for configuring the GPIO pins. * * - gpio-dir : GPIO pin direction. Valid only when 'gpio-ctrl' * is 1. * 0 = Output * 1 = Input (Default) * * - gpio-lvl : GPIO level. Valid only when 'gpio-ctrl' is 1 and 'gpio-dir' is 0. * * 0 = Low (Default) * 1 = High * * - gpio-op-cfg : GPIO output configuration. Valid only when 'gpio-ctrl' is 1 * and 'gpio-dir' is 0. * * 0 = CMOS (Default) * 1 = Open Drain * * - gpio-pol : GPIO output polarity select. Valid only when 'gpio-ctrl' is 1 * and 'gpio-dir' is 0. * * 0 = Non-inverted, Active High (Default) * 1 = Inverted, Active Low * * - gpio-invert : Defines the polarity of the GPIO pin if configured * as input. * * 0 = Not inverted (Default) * 1 = Inverted * * - gpio-ctrl : Defines the function of the GPIO pin. * * GPIO1: * 0 = High impedance input (Default) * 1 = Pin acts as a GPIO, direction controlled by 'gpio-dir' * 2 = Pin acts as MDSYNC, direction controlled by MDSYNC * 3-7 = Reserved * * GPIO2: * 0 = High impedance input (Default) * 1 = Pin acts as a GPIO, direction controlled by 'gpio-dir' * 2 = Pin acts as open drain INT * 3 = Reserved * 4 = Pin acts as push-pull output INT. Active low. * 5 = Pin acts as push-pull output INT. Active high. * 6,7 = Reserved * * GPIO3: * 0 = High impedance input (Default) * 1 = Pin acts as a GPIO, direction controlled by 'gpio-dir' * 2-7 = Reserved */ #define CS35L45_NUM_GPIOS … #endif /* DT_CS35L45_H */
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