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 
omap3_mcbsp_force_ick_on(struct clk * clk,bool force_on)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 
omap3_mcbsp_init_pdata_callback(struct omap_mcbsp_platform_data * pdata)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