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libertas: if_spi: add ability to call board specific setup/teardown methods

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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>
This commit is contained in:
Mike Rapoport
2009-02-03 09:04:20 +02:00
committed by John W. Linville
parent d43e87868f
commit 0c2bec9694
2 changed files with 22 additions and 0 deletions
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7
include/linux/spi/libertas_spi.h
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@ -10,6 +10,9 @@
*/
#ifndef _LIBERTAS_SPI_H_
#define _LIBERTAS_SPI_H_
struct spi_device;
struct libertas_spi_platform_data {
/* There are two ways to read data from the WLAN module's SPI
* interface. Setting 0 or 1 here controls which one is used.
@ -21,5 +24,9 @@ struct libertas_spi_platform_data {
/* GPIO number to use as chip select */
u16 gpio_cs;
/* Board specific setup/teardown */
int (*setup)(struct spi_device *spi);
int (*teardown)(struct spi_device *spi);
};
#endif