diff options
| author | Mark Brown <broonie@kernel.org> | 2018-10-21 17:00:14 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-10-21 17:00:14 +0100 |
| commit | 4b51c747e4a52175e63d125db8365b38b06f0343 (patch) | |
| tree | cd03133d8efbf5a039c7cb369aa7eaa8c27d8ebe /include/linux/spi | |
| parent | 92d58fd13af269552b65853d2c3a63970c4090bf (diff) | |
| parent | 0c903aafc8529f64d24d2cd6df32f2bf16aad20b (diff) | |
Merge branch 'spi-4.20' into spi-next
Diffstat (limited to 'include/linux/spi')
| -rw-r--r-- | include/linux/spi/spi.h | 19 |
1 files changed, 7 insertions, 12 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index a64235e05321..3de9958ca28b 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -1,15 +1,6 @@ -/* - * Copyright (C) 2005 David Brownell +/* SPDX-License-Identifier: GPL-2.0-or-later * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. + * Copyright (C) 2005 David Brownell */ #ifndef __LINUX_SPI_H @@ -163,10 +154,12 @@ struct spi_device { #define SPI_TX_QUAD 0x200 /* transmit with 4 wires */ #define SPI_RX_DUAL 0x400 /* receive with 2 wires */ #define SPI_RX_QUAD 0x800 /* receive with 4 wires */ +#define SPI_CS_WORD 0x1000 /* toggle cs after each word */ int irq; void *controller_state; void *controller_data; char modalias[SPI_NAME_SIZE]; + const char *driver_override; int cs_gpio; /* chip select gpio */ /* the statistics */ @@ -177,7 +170,6 @@ struct spi_device { * the controller talks to each chip, like: * - memory packing (12 bit samples into low bits, others zeroed) * - priority - * - drop chipselect after each word * - chipselect delays * - ... */ @@ -711,6 +703,8 @@ extern void spi_res_release(struct spi_controller *ctlr, * @delay_usecs: microseconds to delay after this transfer before * (optionally) changing the chipselect status, then starting * the next transfer or completing this @spi_message. + * @word_delay: clock cycles to inter word delay after each word size + * (set by bits_per_word) transmission. * @transfer_list: transfers are sequenced through @spi_message.transfers * @tx_sg: Scatterlist for transmit, currently not for client use * @rx_sg: Scatterlist for receive, currently not for client use @@ -793,6 +787,7 @@ struct spi_transfer { u8 bits_per_word; u16 delay_usecs; u32 speed_hz; + u16 word_delay; struct list_head transfer_list; }; |