include/linux/spi/spi-tegra.h

   1 /*
   2  * spi-tegra.h: SPI interface for Nvidia Tegra20 SLINK controller.
   3  *
   4  * Copyright (C) 2011 NVIDIA Corporation
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  14  * more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  19  */
  20
  21 #ifndef _LINUX_SPI_TEGRA_H
  22 #define _LINUX_SPI_TEGRA_H
  23
  24 struct tegra_spi_platform_data {
  25         int dma_req_sel;
  26         unsigned int spi_max_frequency;
  27 };
  28
  29 /*
  30  * Controller data from device to pass some info like
  31  * hw based chip select can be used or not and if yes
  32  * then CS hold and setup time.
  33  */
  34 struct tegra_spi_device_controller_data {
  35         bool is_hw_based_cs;
  36         int cs_setup_clk_count;
  37         int cs_hold_clk_count;
  38 };
  39
  40 #endif /* _LINUX_SPI_TEGRA_H */