1 files changed, 52 insertions, 101 deletions

diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c
index 4a6ef6ab845..b4ac3af1160 100644
--- a/arch/arm/mach-omap2/mcbsp.c
+++ b/arch/arm/mach-omap2/mcbsp.c
@@ -15,108 +15,47 @@
 #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 <mach/irqs.h>
-#include <plat/dma.h>
-#include <plat/cpu.h>
-#include <plat/mcbsp.h>
-#include <plat/omap_device.h>
+#include <linux/platform_data/asoc-ti-mcbsp.h>
 #include <linux/pm_runtime.h>
 
-#include "control.h"
-
-/* McBSP internal signal muxing functions */
-
-void omap2_mcbsp1_mux_clkr_src(u8 mux)
-{
-	u32 v;
+#include <linux/omap-dma.h>
 
-	v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
-	if (mux == CLKR_SRC_CLKR)
-		v &= ~OMAP2_MCBSP1_CLKR_MASK;
-	else if (mux == CLKR_SRC_CLKX)
-		v |= OMAP2_MCBSP1_CLKR_MASK;
-	omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
-}
-EXPORT_SYMBOL(omap2_mcbsp1_mux_clkr_src);
-
-void omap2_mcbsp1_mux_fsr_src(u8 mux)
-{
-	u32 v;
+#include "soc.h"
+#include "omap_device.h"
+#include "clock.h"
 
-	v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
-	if (mux == FSR_SRC_FSR)
-		v &= ~OMAP2_MCBSP1_FSR_MASK;
-	else if (mux == FSR_SRC_FSX)
-		v |= OMAP2_MCBSP1_FSR_MASK;
-	omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
-}
-EXPORT_SYMBOL(omap2_mcbsp1_mux_fsr_src);
+/*
+ * 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"
 
-/* McBSP CLKS source switching function */
+static struct clk *mcbsp_iclks[5];
 
-int omap2_mcbsp_set_clks_src(u8 id, u8 fck_src_id)
+static int omap3_enable_st_clock(unsigned int id, bool enable)
 {
-	struct omap_mcbsp *mcbsp;
-	struct clk *fck_src;
-	char *fck_src_name;
-	int r;
-
-	if (!omap_mcbsp_check_valid_id(id)) {
-		pr_err("%s: Invalid id (%d)\n", __func__, id + 1);
-		return -EINVAL;
-	}
-	mcbsp = id_to_mcbsp_ptr(id);
-
-	if (fck_src_id == MCBSP_CLKS_PAD_SRC)
-		fck_src_name = "pad_fck";
-	else if (fck_src_id == MCBSP_CLKS_PRCM_SRC)
-		fck_src_name = "prcm_fck";
+	/*
+	 * Sidetone uses McBSP ICLK - which must not idle when sidetones
+	 * are enabled or sidetones start sounding ugly.
+	 */
+	if (enable)
+		return omap2_clk_deny_idle(mcbsp_iclks[id]);
 	else
-		return -EINVAL;
-
-	fck_src = clk_get(mcbsp->dev, fck_src_name);
-	if (IS_ERR_OR_NULL(fck_src)) {
-		pr_err("omap-mcbsp: %s: could not clk_get() %s\n", "clks",
-		       fck_src_name);
-		return -EINVAL;
-	}
-
-	pm_runtime_put_sync(mcbsp->dev);
-
-	r = clk_set_parent(mcbsp->fclk, fck_src);
-	if (IS_ERR_VALUE(r)) {
-		pr_err("omap-mcbsp: %s: could not clk_set_parent() to %s\n",
-		       "clks", fck_src_name);
-		clk_put(fck_src);
-		return -EINVAL;
-	}
-
-	pm_runtime_get_sync(mcbsp->dev);
-
-	clk_put(fck_src);
-
-	return 0;
+		return omap2_clk_allow_idle(mcbsp_iclks[id]);
 }
-EXPORT_SYMBOL(omap2_mcbsp_set_clks_src);
-
-struct omap_device_pm_latency omap2_mcbsp_latency[] = {
-	{
-		.deactivate_func = omap_device_idle_hwmods,
-		.activate_func   = omap_device_enable_hwmods,
-		.flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
-	},
-};
 
-static int omap_init_mcbsp(struct omap_hwmod *oh, void *unused)
+static int __init omap_init_mcbsp(struct omap_hwmod *oh, void *unused)
 {
 	int id, count = 1;
 	char *name = "omap-mcbsp";
 	struct omap_hwmod *oh_device[2];
 	struct omap_mcbsp_platform_data *pdata = NULL;
-	struct omap_device *od;
+	struct platform_device *pdev;
+	char clk_name[11];
 
 	sscanf(oh->name, "mcbsp%d", &id);
 
@@ -126,46 +65,58 @@ static int omap_init_mcbsp(struct omap_hwmod *oh, void *unused)
 		return -ENOMEM;
 	}
 
-	pdata->mcbsp_config_type = oh->class->rev;
+	pdata->reg_step = 4;
+	if (oh->class->rev < MCBSP_CONFIG_TYPE2) {
+		pdata->reg_size = 2;
+	} else {
+		pdata->reg_size = 4;
+		pdata->has_ccr = true;
+	}
 
-	if (oh->class->rev == MCBSP_CONFIG_TYPE3) {
+	if (oh->class->rev == MCBSP_CONFIG_TYPE2) {
+		/* The FIFO has 128 locations */
+		pdata->buffer_size = 0x80;
+	} else if (oh->class->rev == MCBSP_CONFIG_TYPE3) {
 		if (id == 2)
 			/* The FIFO has 1024 + 256 locations */
 			pdata->buffer_size = 0x500;
 		else
 			/* The FIFO has 128 locations */
 			pdata->buffer_size = 0x80;
+	} else if (oh->class->rev == MCBSP_CONFIG_TYPE4) {
+		/* The FIFO has 128 locations for all instances */
+		pdata->buffer_size = 0x80;
 	}
 
+	if (oh->class->rev >= MCBSP_CONFIG_TYPE3)
+		pdata->has_wakeup = true;
+
 	oh_device[0] = oh;
 
 	if (oh->dev_attr) {
 		oh_device[1] = omap_hwmod_lookup((
 		(struct omap_mcbsp_dev_attr *)(oh->dev_attr))->sidetone);
+		pdata->enable_st_clock = omap3_enable_st_clock;
+		sprintf(clk_name, "mcbsp%d_ick", id);
+		mcbsp_iclks[id] = clk_get(NULL, clk_name);
 		count++;
 	}
-	od = omap_device_build_ss(name, id, oh_device, count, pdata,
-				sizeof(*pdata), omap2_mcbsp_latency,
-				ARRAY_SIZE(omap2_mcbsp_latency), false);
+	pdev = omap_device_build_ss(name, id, oh_device, count, pdata,
+				    sizeof(*pdata));
 	kfree(pdata);
-	if (IS_ERR(od))  {
+	if (IS_ERR(pdev))  {
 		pr_err("%s: Can't build omap_device for %s:%s.\n", __func__,
 					name, oh->name);
-		return PTR_ERR(od);
+		return PTR_ERR(pdev);
 	}
-	omap_mcbsp_count++;
 	return 0;
 }
 
 static int __init omap2_mcbsp_init(void)
 {
-	omap_hwmod_for_each_by_class("mcbsp", omap_init_mcbsp, NULL);
+	if (!of_have_populated_dt())
+		omap_hwmod_for_each_by_class("mcbsp", omap_init_mcbsp, NULL);
 
-	mcbsp_ptr = kzalloc(omap_mcbsp_count * sizeof(struct omap_mcbsp *),
-								GFP_KERNEL);
-	if (!mcbsp_ptr)
-		return -ENOMEM;
-
-	return omap_mcbsp_init();
+	return 0;
 }
-arch_initcall(omap2_mcbsp_init);
+omap_arch_initcall(omap2_mcbsp_init);