diff options
| author | Jérôme Pouiller <jerome.pouiller@silabs.com> | 2019-09-19 14:25:36 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-04 10:26:51 +0200 |
| commit | a7a91ca5a23dbcc68f04d18ef7e765b1e4f64c7f (patch) | |
| tree | 2e4acd3fbf7ece6d96bee5f1c77f6a3d16f1960c /drivers/staging/wfx/bus.h | |
| parent | d98bb9c2fec01254d2e04e1eed51dde9ae611314 (diff) | |
staging: wfx: add infrastructure for new driver
Instantiate build infrastructure WFx driver. This driver provides support
for Wifi chipset Silicon Labs WF200 and further:
https://www.silabs.com/documents/public/data-sheets/wf200-datasheet.pdf
This chip support SPI and SDIO bus.
SDIO interface has two particularities:
1. Some parameters may be useful for end user (I will talk about
gpio_wakeup later).
2. The SDIO VID and PID of WF200 are 0000:0001 which are too much
generic to rely on.
So, current code checks VID/PID and looks for a node in DT (since WF200
targets embedded platforms, I don't think it is a problem to rely on
DT). DT can also be used to define to parameters for driver. Currently,
if no node is found, a warning is emitted, but it could be changed in
error.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20190919142527.31797-2-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/wfx/bus.h')
| -rw-r--r-- | drivers/staging/wfx/bus.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/staging/wfx/bus.h b/drivers/staging/wfx/bus.h new file mode 100644 index 000000000000..8ce871a8a9ff --- /dev/null +++ b/drivers/staging/wfx/bus.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Common bus abstraction layer. + * + * Copyright (c) 2017-2018, Silicon Laboratories, Inc. + * Copyright (c) 2010, ST-Ericsson + */ +#ifndef WFX_BUS_H +#define WFX_BUS_H + +#include <linux/mmc/sdio_func.h> +#include <linux/spi/spi.h> + +extern struct sdio_driver wfx_sdio_driver; +extern struct spi_driver wfx_spi_driver; + +#endif |