| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * linux/arch/arm/mach-omap2/mcbsp.c |
| 3 | * |
| 4 | * Copyright (C) 2008 Instituto Nokia de Tecnologia |
| 5 | * Contact: Eduardo Valentin <eduardo.valentin@indt.org.br> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License version 2 as |
| 9 | * published by the Free Software Foundation. |
| 10 | * |
| 11 | * Multichannel mode not supported. |
| 12 | */ |
| 13 | #include <linux/module.h> |
| 14 | #include <linux/init.h> |
| 15 | #include <linux/clk.h> |
| 16 | #include <linux/err.h> |
| 17 | #include <linux/io.h> |
| 18 | #include <linux/of.h> |
| 19 | #include <linux/platform_device.h> |
| 20 | #include <linux/slab.h> |
| 21 | #include <linux/platform_data/asoc-ti-mcbsp.h> |
| 22 | #include <linux/pm_runtime.h> |
| 23 | |
| 24 | #include <linux/omap-dma.h> |
| 25 | |
| 26 | #include "soc.h" |
| 27 | #include "omap_device.h" |
| 28 | #include "clock.h" |
| 29 | |
| 30 | /* |
| 31 | * FIXME: Find a mechanism to enable/disable runtime the McBSP ICLK autoidle. |
| 32 | * Sidetone needs non-gated ICLK and sidetone autoidle is broken. |
| 33 | */ |
| 34 | #include "cm3xxx.h" |
| 35 | #include "cm-regbits-34xx.h" |
| 36 | |
| 37 | static int omap3_mcbsp_force_ick_on(struct clk *clk, bool force_on) |
| 38 | { |
| 39 | if (!clk) |
| 40 | return 0; |
| 41 | |
| 42 | if (force_on) |
| 43 | return omap2_clk_deny_idle(clk); |
| 44 | else |
| 45 | return omap2_clk_allow_idle(clk); |
| 46 | } |
| 47 | |
| 48 | void __init omap3_mcbsp_init_pdata_callback( |
| 49 | struct omap_mcbsp_platform_data *pdata) |
| 50 | { |
| 51 | if (!pdata) |
| 52 | return; |
| 53 | |
| 54 | pdata->force_ick_on = omap3_mcbsp_force_ick_on; |
| 55 | } |