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#ifndef __MACH_SPI_H_
#define __MACH_SPI_H_
/*
* struct spi_imx_master - device.platform_data for SPI controller devices.
* @chipselect: Array of chipselects for this master. Numbers >= 0 mean gpio
* pins, numbers < 0 mean internal CSPI chipselects according
* to MXC_SPI_CS(). Normally you want to use gpio based chip
* selects as the CSPI module tries to be intelligent about
* when to assert the chipselect: The CSPI module deasserts the
* chipselect once it runs out of input data. The other problem
* is that it is not possible to mix between high active and low
* active chipselects on one single bus using the internal
* chipselects. Unfortunately Freescale decided to put some
* chipselects on dedicated pins which are not usable as gpios,
* so we have to support the internal chipselects.
* @num_chipselect: ARRAY_SIZE(chipselect)
*/
struct spi_imx_master {
int *chipselect;
int num_chipselect;
};
#define MXC_SPI_CS(no) ((no) - 32)
#endif /* __MACH_SPI_H_*/