From dc4dc36056392c0b0b1ca9e81bebff964b9297e0 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Tue, 30 Oct 2012 12:34:05 +0530 Subject: 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 Reviewed-by: Stephen Warren Signed-off-by: Mark Brown --- include/linux/spi/spi-tegra.h | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 include/linux/spi/spi-tegra.h (limited to 'include/linux/spi') 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 */ -- cgit v1.2.3-55-g7522