| /* 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 0x1 |
| #define CS35L45_ASP_TX_HIZ_DISABLED 0x2 |
| |
| /* |
| * 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 0x3 |
| |
| #endif /* DT_CS35L45_H */ |
