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| author | Hung-ying Tyan <tyanh@chromium.org> | 2013-05-15 18:27:30 +0800 |
|---|---|---|
| committer | Tom Rini <trini@ti.com> | 2013-06-26 10:13:24 -0400 |
| commit | f3424c554c572761f35b00988deb8ed35d1870e3 (patch) | |
| tree | bd4d66a127bb045d1c4968fde86d3c25e1f0ddb1 /include/spi.h | |
| parent | 78764a4e11dd40005ba2b36848de407070ccc1a7 (diff) | |
| download | u-boot-imx-f3424c554c572761f35b00988deb8ed35d1870e3.zip u-boot-imx-f3424c554c572761f35b00988deb8ed35d1870e3.tar.gz u-boot-imx-f3424c554c572761f35b00988deb8ed35d1870e3.tar.bz2 | |
cros: exynos: add SPI support for cros_ec
This patch adds SPI support for carrying out the cros_ec protocol.
Signed-off-by: Hung-ying Tyan <tyanh@chromium.org>
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'include/spi.h')
| -rw-r--r-- | include/spi.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/spi.h b/include/spi.h index 1638b50..e8e6544 100644 --- a/include/spi.h +++ b/include/spi.h @@ -247,4 +247,20 @@ static inline int spi_w8r8(struct spi_slave *slave, unsigned char byte) return ret < 0 ? ret : din[1]; } +/** + * Set up a SPI slave for a particular device tree node + * + * This calls spi_setup_slave() with the correct bus number. Call + * spi_free_slave() to free it later. + * + * @param blob Device tree blob + * @param node SPI peripheral node to use + * @param cs Chip select to use + * @param max_hz Maximum SCK rate in Hz (0 for default) + * @param mode Clock polarity, clock phase and other parameters + * @return pointer to new spi_slave structure + */ +struct spi_slave *spi_setup_slave_fdt(const void *blob, int node, + unsigned int cs, unsigned int max_hz, unsigned int mode); + #endif /* _SPI_H_ */ |