diff options
Diffstat (limited to 'arch/arm/mach-omap2/mcbsp.c')
-rw-r--r-- | arch/arm/mach-omap2/mcbsp.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c new file mode 100644 index 000000000..4acc0dae2 --- /dev/null +++ b/arch/arm/mach-omap2/mcbsp.c @@ -0,0 +1,55 @@ +/* + * linux/arch/arm/mach-omap2/mcbsp.c + * + * Copyright (C) 2008 Instituto Nokia de Tecnologia + * Contact: Eduardo Valentin <eduardo.valentin@indt.org.br> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Multichannel mode not supported. + */ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/platform_device.h> +#include <linux/slab.h> +#include <linux/platform_data/asoc-ti-mcbsp.h> +#include <linux/pm_runtime.h> + +#include <linux/omap-dma.h> + +#include "soc.h" +#include "omap_device.h" +#include "clock.h" + +/* + * FIXME: Find a mechanism to enable/disable runtime the McBSP ICLK autoidle. + * Sidetone needs non-gated ICLK and sidetone autoidle is broken. + */ +#include "cm3xxx.h" +#include "cm-regbits-34xx.h" + +static int omap3_mcbsp_force_ick_on(struct clk *clk, bool force_on) +{ + if (!clk) + return 0; + + if (force_on) + return omap2_clk_deny_idle(clk); + else + return omap2_clk_allow_idle(clk); +} + +void __init omap3_mcbsp_init_pdata_callback( + struct omap_mcbsp_platform_data *pdata) +{ + if (!pdata) + return; + + pdata->force_ick_on = omap3_mcbsp_force_ick_on; +} |