0c2bec9694
In certain cases it is required to perform board specific actions before activating libertas G-SPI interface. These actions may include power up of the chip, GPIOs setup, proper pin-strapping and SPI controller config. This patch adds ability to call board specific setup/teardown methods Signed-off-by: Mike Rapoport <mike@compulab.co.il> Acked-by: Andrey Yurovsky <andrey@cozybit.com> Acked-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
32 lines
963 B
C
32 lines
963 B
C
/*
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* board-specific data for the libertas_spi driver.
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*
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* Copyright 2008 Analog Devices Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*/
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#ifndef _LIBERTAS_SPI_H_
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#define _LIBERTAS_SPI_H_
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struct spi_device;
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struct libertas_spi_platform_data {
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/* There are two ways to read data from the WLAN module's SPI
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* interface. Setting 0 or 1 here controls which one is used.
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*
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* Usually you want to set use_dummy_writes = 1.
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* However, if that doesn't work or if you are using a slow SPI clock
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* speed, you may want to use 0 here. */
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u16 use_dummy_writes;
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/* GPIO number to use as chip select */
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u16 gpio_cs;
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/* Board specific setup/teardown */
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int (*setup)(struct spi_device *spi);
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int (*teardown)(struct spi_device *spi);
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};
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#endif
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