spi-tegra.h 1.2 KB

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  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. #ifndef _LINUX_SPI_TEGRA_H
  21. #define _LINUX_SPI_TEGRA_H
  22. struct tegra_spi_platform_data {
  23. int dma_req_sel;
  24. unsigned int spi_max_frequency;
  25. };
  26. /*
  27. * Controller data from device to pass some info like
  28. * hw based chip select can be used or not and if yes
  29. * then CS hold and setup time.
  30. */
  31. struct tegra_spi_device_controller_data {
  32. bool is_hw_based_cs;
  33. int cs_setup_clk_count;
  34. int cs_hold_clk_count;
  35. };
  36. #endif /* _LINUX_SPI_TEGRA_H */