v4.19.13 snapshot.
diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c
new file mode 100644
index 0000000..4acc0da
--- /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;
+}