Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 46 insertions, 10 deletions

diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c
index fb4bcf81a18..577cb77db26 100644
--- a/arch/arm/mach-omap2/mcbsp.c
+++ b/arch/arm/mach-omap2/mcbsp.c
@@ -34,7 +34,7 @@
 #include "cm2xxx_3xxx.h"
 #include "cm-regbits-34xx.h"
 
-/* McBSP internal signal muxing function */
+/* McBSP1 internal signal muxing function for OMAP2/3 */
 static int omap2_mcbsp1_mux_rx_clk(struct device *dev, const char *signal,
 				   const char *src)
 {
@@ -65,6 +65,42 @@ static int omap2_mcbsp1_mux_rx_clk(struct device *dev, const char *signal,
 	return 0;
 }
 
+/* McBSP4 internal signal muxing function for OMAP4 */
+#define OMAP4_CONTROL_MCBSPLP_ALBCTRLRX_FSX	(1 << 31)
+#define OMAP4_CONTROL_MCBSPLP_ALBCTRLRX_CLKX	(1 << 30)
+static int omap4_mcbsp4_mux_rx_clk(struct device *dev, const char *signal,
+				   const char *src)
+{
+	u32 v;
+
+	/*
+	 * In CONTROL_MCBSPLP register only bit 30 (CLKR mux), and bit 31 (FSR
+	 * mux) is used */
+	v = omap4_ctrl_pad_readl(OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_MCBSPLP);
+
+	if (!strcmp(signal, "clkr")) {
+		if (!strcmp(src, "clkr"))
+			v &= ~OMAP4_CONTROL_MCBSPLP_ALBCTRLRX_CLKX;
+		else if (!strcmp(src, "clkx"))
+			v |= OMAP4_CONTROL_MCBSPLP_ALBCTRLRX_CLKX;
+		else
+			return -EINVAL;
+	} else if (!strcmp(signal, "fsr")) {
+		if (!strcmp(src, "fsr"))
+			v &= ~OMAP4_CONTROL_MCBSPLP_ALBCTRLRX_FSX;
+		else if (!strcmp(src, "fsx"))
+			v |= OMAP4_CONTROL_MCBSPLP_ALBCTRLRX_FSX;
+		else
+			return -EINVAL;
+	} else {
+		return -EINVAL;
+	}
+
+	omap4_ctrl_pad_writel(v, OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_MCBSPLP);
+
+	return 0;
+}
+
 /* McBSP CLKS source switching function */
 static int omap2_mcbsp_set_clk_src(struct device *dev, struct clk *clk,
 				   const char *src)
@@ -122,7 +158,7 @@ static int omap3_enable_st_clock(unsigned int id, bool enable)
 	return 0;
 }
 
-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";
@@ -146,9 +182,15 @@ static int omap_init_mcbsp(struct omap_hwmod *oh, void *unused)
 		pdata->has_ccr = true;
 	}
 	pdata->set_clk_src = omap2_mcbsp_set_clk_src;
-	if (id == 1)
+
+	/* On OMAP2/3 the McBSP1 port has 6 pin configuration */
+	if (id == 1 && oh->class->rev < MCBSP_CONFIG_TYPE4)
 		pdata->mux_signal = omap2_mcbsp1_mux_rx_clk;
 
+	/* On OMAP4 the McBSP4 port has 6 pin configuration */
+	if (id == 4 && oh->class->rev == MCBSP_CONFIG_TYPE4)
+		pdata->mux_signal = omap4_mcbsp4_mux_rx_clk;
+
 	if (oh->class->rev == MCBSP_CONFIG_TYPE3) {
 		if (id == 2)
 			/* The FIFO has 1024 + 256 locations */
@@ -180,7 +222,6 @@ static int omap_init_mcbsp(struct omap_hwmod *oh, void *unused)
 					name, oh->name);
 		return PTR_ERR(pdev);
 	}
-	omap_mcbsp_count++;
 	return 0;
 }
 
@@ -188,11 +229,6 @@ static int __init omap2_mcbsp_init(void)
 {
 	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);