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
34 static 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
45 void __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
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.