diff options
| author | Olof Johansson <olof@lixom.net> | 2012-09-22 00:22:33 -0700 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-09-22 01:07:21 -0700 |
| commit | e3a66aa33a8f06924f67770e15c22a5c52df314e (patch) | |
| tree | fb8786f1300bdce8f6fc7462e3fd5699e057dd24 /include/linux/platform_data/spi-imx.h | |
| parent | be2109e13fc6f017040c57615acfe1065723687b (diff) | |
| parent | 6884b680459ab850f99fc37605084187bc9888ac (diff) | |
Merge branch 'multiplatform/platform-data' into next/multiplatform
* multiplatform/platform-data:
ARM: spear: move platform_data definitions
ARM: samsung: move platform_data definitions
ARM: orion: move platform_data definitions
ARM: nomadik: move platform_data definitions
ARM: w90x900: move platform_data definitions
ARM: vt8500: move platform_data definitions
ARM: tegra: move sdhci platform_data definition
ARM: sa1100: move platform_data definitions
ARM: pxa: move platform_data definitions
ARM: netx: move platform_data definitions
ARM: msm: move platform_data definitions
ARM: imx: move platform_data definitions
ARM: ep93xx: move platform_data definitions
ARM: davinci: move platform_data definitions
ARM: at91: move platform_data definitions
Conflicts due to removed files:
arch/arm/mach-tegra/board-harmony.c
arch/arm/mach-tegra/board-trimslice.c
Conflicts due to code removal:
arch/arm/mach-tegra/board-paz00.c
Context conflicts in:
drivers/mmc/host/sdhci-tegra.c
drivers/net/irda/pxaficp_ir.c
Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'include/linux/platform_data/spi-imx.h')
| -rw-r--r-- | include/linux/platform_data/spi-imx.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/linux/platform_data/spi-imx.h b/include/linux/platform_data/spi-imx.h new file mode 100644 index 00000000000..08be445e8eb --- /dev/null +++ b/include/linux/platform_data/spi-imx.h @@ -0,0 +1,27 @@ + +#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_*/ |