diff options
| author | Laxman Dewangan <ldewangan@nvidia.com> | 2012-10-30 12:34:05 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-10-30 18:38:35 +0000 |
| commit | dc4dc36056392c0b0b1ca9e81bebff964b9297e0 (patch) | |
| tree | adbe20e39ba98a2ae893548511b656048686cd85 /include/linux/spi | |
| parent | 8f0d8163b50e01f398b14bcd4dc039ac5ab18d64 (diff) | |
spi: tegra: add spi driver for SLINK controller
Tegra20/Tegra30 supports the spi interface through its SLINK
controller. Add spi driver for SLINK controller.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'include/linux/spi')
| -rw-r--r-- | include/linux/spi/spi-tegra.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/linux/spi/spi-tegra.h b/include/linux/spi/spi-tegra.h new file mode 100644 index 000000000000..786932c62edb --- /dev/null +++ b/include/linux/spi/spi-tegra.h @@ -0,0 +1,40 @@ +/* + * spi-tegra.h: SPI interface for Nvidia Tegra20 SLINK controller. + * + * Copyright (C) 2011 NVIDIA Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#ifndef _LINUX_SPI_TEGRA_H +#define _LINUX_SPI_TEGRA_H + +struct tegra_spi_platform_data { + int dma_req_sel; + unsigned int spi_max_frequency; +}; + +/* + * Controller data from device to pass some info like + * hw based chip select can be used or not and if yes + * then CS hold and setup time. + */ +struct tegra_spi_device_controller_data { + bool is_hw_based_cs; + int cs_setup_clk_count; + int cs_hold_clk_count; +}; + +#endif /* _LINUX_SPI_TEGRA_H */ |