mcbsp.c 1.1 KB

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  1. // SPDX-License-Identifier: GPL-2.0-only
  2. /*
  3. * linux/arch/arm/mach-omap2/mcbsp.c
  4. *
  5. * Copyright (C) 2008 Instituto Nokia de Tecnologia
  6. * Contact: Eduardo Valentin <[email protected]>
  7. *
  8. * Multichannel mode not supported.
  9. */
  10. #include <linux/module.h>
  11. #include <linux/init.h>
  12. #include <linux/clk.h>
  13. #include <linux/err.h>
  14. #include <linux/io.h>
  15. #include <linux/of.h>
  16. #include <linux/platform_device.h>
  17. #include <linux/slab.h>
  18. #include <linux/platform_data/asoc-ti-mcbsp.h>
  19. #include <linux/pm_runtime.h>
  20. #include <linux/omap-dma.h>
  21. #include "soc.h"
  22. #include "omap_device.h"
  23. #include "clock.h"
  24. /*
  25. * FIXME: Find a mechanism to enable/disable runtime the McBSP ICLK autoidle.
  26. * Sidetone needs non-gated ICLK and sidetone autoidle is broken.
  27. */
  28. #include "cm3xxx.h"
  29. #include "cm-regbits-34xx.h"
  30. static int omap3_mcbsp_force_ick_on(struct clk *clk, bool force_on)
  31. {
  32. if (!clk)
  33. return 0;
  34. if (force_on)
  35. return omap2_clk_deny_idle(clk);
  36. else
  37. return omap2_clk_allow_idle(clk);
  38. }
  39. void __init omap3_mcbsp_init_pdata_callback(
  40. struct omap_mcbsp_platform_data *pdata)
  41. {
  42. if (!pdata)
  43. return;
  44. pdata->force_ick_on = omap3_mcbsp_force_ick_on;
  45. }