LXR linux/arch/arm/mach-omap2/mcbsp.c

   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 <eduardo.valentin@indt.org.br>
   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
  21#include <linux/omap-dma.h>
  22
  23#include "soc.h"
  24#include "omap_device.h"
  25#include "clock.h"
  26
  27/*
  28 * FIXME: Find a mechanism to enable/disable runtime the McBSP ICLK autoidle.
  29 * Sidetone needs non-gated ICLK and sidetone autoidle is broken.
  30 */
  31#include "cm3xxx.h"
  32#include "cm-regbits-34xx.h"
  33
  34static int omap3_mcbsp_force_ick_on(struct clk *clk, bool force_on)
  35{
  36        if (!clk)
  37                return 0;
  38
  39        if (force_on)
  40                return omap2_clk_deny_idle(clk);
  41        else
  42                return omap2_clk_allow_idle(clk);
  43}
  44
  45void __init omap3_mcbsp_init_pdata_callback(
  46                                        struct omap_mcbsp_platform_data *pdata)
  47{
  48        if (!pdata)
  49                return;
  50
  51        pdata->force_ick_on = omap3_mcbsp_force_ick_on;
  52}
  53