]> git.openfabrics.org - ~emulex/infiniband.git/commitdiff
ARM: imx: merge audmux-v1 and audmux-v2
authorShawn Guo <shawn.guo@linaro.org>
Mon, 5 Mar 2012 14:30:51 +0000 (22:30 +0800)
committerMark Brown <broonie@opensource.wolfsonmicro.com>
Tue, 6 Mar 2012 00:02:51 +0000 (00:02 +0000)
It merges audmux-v1 and audmux-v2 under arch/arm/plat-mxc into one.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
arch/arm/mach-imx/Kconfig
arch/arm/plat-mxc/Kconfig
arch/arm/plat-mxc/Makefile
arch/arm/plat-mxc/audmux-v1.c [deleted file]
arch/arm/plat-mxc/audmux-v2.c [deleted file]
arch/arm/plat-mxc/audmux.c [new file with mode: 0644]

index 4defb97bbfc866400fe57fe4c5178a778c30a91f..495a8543e71e616c2c7d223bbb28c31ab72551ab 100644 (file)
@@ -46,7 +46,7 @@ config SOC_IMX21
        bool
        select MACH_MX21
        select CPU_ARM926T
-       select ARCH_MXC_AUDMUX_V1
+       select ARCH_MXC_AUDMUX
        select IMX_HAVE_DMA_V1
        select IMX_HAVE_IOMUX_V1
        select MXC_AVIC
@@ -55,7 +55,7 @@ config SOC_IMX25
        bool
        select ARCH_MX25
        select CPU_ARM926T
-       select ARCH_MXC_AUDMUX_V2
+       select ARCH_MXC_AUDMUX
        select ARCH_MXC_IOMUX_V3
        select MXC_AVIC
 
@@ -63,7 +63,7 @@ config SOC_IMX27
        bool
        select MACH_MX27
        select CPU_ARM926T
-       select ARCH_MXC_AUDMUX_V1
+       select ARCH_MXC_AUDMUX
        select IMX_HAVE_DMA_V1
        select IMX_HAVE_IOMUX_V1
        select MXC_AVIC
@@ -72,7 +72,7 @@ config SOC_IMX31
        bool
        select CPU_V6
        select IMX_HAVE_PLATFORM_MXC_RNGA
-       select ARCH_MXC_AUDMUX_V2
+       select ARCH_MXC_AUDMUX
        select MXC_AVIC
        select SMP_ON_UP if SMP
 
@@ -80,7 +80,7 @@ config SOC_IMX35
        bool
        select CPU_V6
        select ARCH_MXC_IOMUX_V3
-       select ARCH_MXC_AUDMUX_V2
+       select ARCH_MXC_AUDMUX
        select HAVE_EPIT
        select MXC_AVIC
        select SMP_ON_UP if SMP
@@ -89,7 +89,7 @@ config SOC_IMX5
        select CPU_V7
        select MXC_TZIC
        select ARCH_MXC_IOMUX_V3
-       select ARCH_MXC_AUDMUX_V2
+       select ARCH_MXC_AUDMUX
        select ARCH_HAS_CPUFREQ
        select ARCH_MX5
        bool
index dcebb1230f7fd3cd6f6e492c97507a483dcef3b8..0461d16e5ca636a2f12da3e70ffbdc9113a7d301 100644 (file)
@@ -88,10 +88,7 @@ config IMX_HAVE_IOMUX_V1
 config ARCH_MXC_IOMUX_V3
        bool
 
-config ARCH_MXC_AUDMUX_V1
-       bool
-
-config ARCH_MXC_AUDMUX_V2
+config ARCH_MXC_AUDMUX
        bool
 
 config IRAM_ALLOC
index 076db84f3e3183a47096cded0ac90abf50aa23b4..530c81dfd9be718dd3e2c0c9aefe17c5f71a46bc 100644 (file)
@@ -14,8 +14,7 @@ obj-$(CONFIG_IRAM_ALLOC) += iram_alloc.o
 obj-$(CONFIG_MXC_PWM)  += pwm.o
 obj-$(CONFIG_MXC_ULPI) += ulpi.o
 obj-$(CONFIG_MXC_USE_EPIT) += epit.o
-obj-$(CONFIG_ARCH_MXC_AUDMUX_V1) += audmux-v1.o
-obj-$(CONFIG_ARCH_MXC_AUDMUX_V2) += audmux-v2.o
+obj-$(CONFIG_ARCH_MXC_AUDMUX) += audmux.o
 obj-$(CONFIG_MXC_DEBUG_BOARD) += 3ds_debugboard.o
 obj-$(CONFIG_CPU_FREQ_IMX)    += cpufreq.o
 ifdef CONFIG_SND_IMX_SOC
diff --git a/arch/arm/plat-mxc/audmux-v1.c b/arch/arm/plat-mxc/audmux-v1.c
deleted file mode 100644 (file)
index 1180bef..0000000
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- * Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
- *
- * Initial development of this code was funded by
- * Phytec Messtechnik GmbH, http://www.phytec.de
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/clk.h>
-#include <mach/audmux.h>
-#include <mach/hardware.h>
-
-static void __iomem *audmux_base;
-
-static unsigned char port_mapping[] = {
-       0x0, 0x4, 0x8, 0x10, 0x14, 0x1c,
-};
-
-int mxc_audmux_v1_configure_port(unsigned int port, unsigned int pcr)
-{
-       if (!audmux_base) {
-               printk("%s: not configured\n", __func__);
-               return -ENOSYS;
-       }
-
-       if (port >= ARRAY_SIZE(port_mapping))
-               return -EINVAL;
-
-       writel(pcr, audmux_base + port_mapping[port]);
-
-       return 0;
-}
-EXPORT_SYMBOL_GPL(mxc_audmux_v1_configure_port);
-
-static int mxc_audmux_v1_init(void)
-{
-#ifdef CONFIG_MACH_MX21
-       if (cpu_is_mx21())
-               audmux_base = MX21_IO_ADDRESS(MX21_AUDMUX_BASE_ADDR);
-       else
-#endif
-#ifdef CONFIG_MACH_MX27
-       if (cpu_is_mx27())
-               audmux_base = MX27_IO_ADDRESS(MX27_AUDMUX_BASE_ADDR);
-       else
-#endif
-               (void)0;
-       
-       return 0;
-}
-
-postcore_initcall(mxc_audmux_v1_init);
diff --git a/arch/arm/plat-mxc/audmux-v2.c b/arch/arm/plat-mxc/audmux-v2.c
deleted file mode 100644 (file)
index 8cced35..0000000
+++ /dev/null
@@ -1,219 +0,0 @@
-/*
- * Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
- *
- * Initial development of this code was funded by
- * Phytec Messtechnik GmbH, http://www.phytec.de
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/module.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/clk.h>
-#include <linux/debugfs.h>
-#include <linux/slab.h>
-#include <mach/audmux.h>
-#include <mach/hardware.h>
-
-static struct clk *audmux_clk;
-static void __iomem *audmux_base;
-
-#define MXC_AUDMUX_V2_PTCR(x)          ((x) * 8)
-#define MXC_AUDMUX_V2_PDCR(x)          ((x) * 8 + 4)
-
-#ifdef CONFIG_DEBUG_FS
-static struct dentry *audmux_debugfs_root;
-
-static int audmux_open_file(struct inode *inode, struct file *file)
-{
-       file->private_data = inode->i_private;
-       return 0;
-}
-
-/* There is an annoying discontinuity in the SSI numbering with regard
- * to the Linux number of the devices */
-static const char *audmux_port_string(int port)
-{
-       switch (port) {
-       case MX31_AUDMUX_PORT1_SSI0:
-               return "imx-ssi.0";
-       case MX31_AUDMUX_PORT2_SSI1:
-               return "imx-ssi.1";
-       case MX31_AUDMUX_PORT3_SSI_PINS_3:
-               return "SSI3";
-       case MX31_AUDMUX_PORT4_SSI_PINS_4:
-               return "SSI4";
-       case MX31_AUDMUX_PORT5_SSI_PINS_5:
-               return "SSI5";
-       case MX31_AUDMUX_PORT6_SSI_PINS_6:
-               return "SSI6";
-       default:
-               return "UNKNOWN";
-       }
-}
-
-static ssize_t audmux_read_file(struct file *file, char __user *user_buf,
-                               size_t count, loff_t *ppos)
-{
-       ssize_t ret;
-       char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
-       int port = (int)file->private_data;
-       u32 pdcr, ptcr;
-
-       if (!buf)
-               return -ENOMEM;
-
-       if (audmux_clk)
-               clk_enable(audmux_clk);
-
-       ptcr = readl(audmux_base + MXC_AUDMUX_V2_PTCR(port));
-       pdcr = readl(audmux_base + MXC_AUDMUX_V2_PDCR(port));
-
-       if (audmux_clk)
-               clk_disable(audmux_clk);
-
-       ret = snprintf(buf, PAGE_SIZE, "PDCR: %08x\nPTCR: %08x\n",
-                      pdcr, ptcr);
-
-       if (ptcr & MXC_AUDMUX_V2_PTCR_TFSDIR)
-               ret += snprintf(buf + ret, PAGE_SIZE - ret,
-                               "TxFS output from %s, ",
-                               audmux_port_string((ptcr >> 27) & 0x7));
-       else
-               ret += snprintf(buf + ret, PAGE_SIZE - ret,
-                               "TxFS input, ");
-
-       if (ptcr & MXC_AUDMUX_V2_PTCR_TCLKDIR)
-               ret += snprintf(buf + ret, PAGE_SIZE - ret,
-                               "TxClk output from %s",
-                               audmux_port_string((ptcr >> 22) & 0x7));
-       else
-               ret += snprintf(buf + ret, PAGE_SIZE - ret,
-                               "TxClk input");
-
-       ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n");
-
-       if (ptcr & MXC_AUDMUX_V2_PTCR_SYN) {
-               ret += snprintf(buf + ret, PAGE_SIZE - ret,
-                               "Port is symmetric");
-       } else {
-               if (ptcr & MXC_AUDMUX_V2_PTCR_RFSDIR)
-                       ret += snprintf(buf + ret, PAGE_SIZE - ret,
-                                       "RxFS output from %s, ",
-                                       audmux_port_string((ptcr >> 17) & 0x7));
-               else
-                       ret += snprintf(buf + ret, PAGE_SIZE - ret,
-                                       "RxFS input, ");
-
-               if (ptcr & MXC_AUDMUX_V2_PTCR_RCLKDIR)
-                       ret += snprintf(buf + ret, PAGE_SIZE - ret,
-                                       "RxClk output from %s",
-                                       audmux_port_string((ptcr >> 12) & 0x7));
-               else
-                       ret += snprintf(buf + ret, PAGE_SIZE - ret,
-                                       "RxClk input");
-       }
-
-       ret += snprintf(buf + ret, PAGE_SIZE - ret,
-                       "\nData received from %s\n",
-                       audmux_port_string((pdcr >> 13) & 0x7));
-
-       ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
-
-       kfree(buf);
-
-       return ret;
-}
-
-static const struct file_operations audmux_debugfs_fops = {
-       .open = audmux_open_file,
-       .read = audmux_read_file,
-       .llseek = default_llseek,
-};
-
-static void audmux_debugfs_init(void)
-{
-       int i;
-       char buf[20];
-
-       audmux_debugfs_root = debugfs_create_dir("audmux", NULL);
-       if (!audmux_debugfs_root) {
-               pr_warning("Failed to create AUDMUX debugfs root\n");
-               return;
-       }
-
-       for (i = 1; i < 8; i++) {
-               snprintf(buf, sizeof(buf), "ssi%d", i);
-               if (!debugfs_create_file(buf, 0444, audmux_debugfs_root,
-                                        (void *)i, &audmux_debugfs_fops))
-                       pr_warning("Failed to create AUDMUX port %d debugfs file\n",
-                                  i);
-       }
-}
-#else
-static inline void audmux_debugfs_init(void)
-{
-}
-#endif
-
-int mxc_audmux_v2_configure_port(unsigned int port, unsigned int ptcr,
-               unsigned int pdcr)
-{
-       if (!audmux_base)
-               return -ENOSYS;
-
-       if (audmux_clk)
-               clk_enable(audmux_clk);
-
-       writel(ptcr, audmux_base + MXC_AUDMUX_V2_PTCR(port));
-       writel(pdcr, audmux_base + MXC_AUDMUX_V2_PDCR(port));
-
-       if (audmux_clk)
-               clk_disable(audmux_clk);
-
-       return 0;
-}
-EXPORT_SYMBOL_GPL(mxc_audmux_v2_configure_port);
-
-static int mxc_audmux_v2_init(void)
-{
-       int ret;
-       if (cpu_is_mx51()) {
-               audmux_base = MX51_IO_ADDRESS(MX51_AUDMUX_BASE_ADDR);
-       } else if (cpu_is_mx31()) {
-               audmux_base = MX31_IO_ADDRESS(MX31_AUDMUX_BASE_ADDR);
-       } else if (cpu_is_mx35()) {
-               audmux_clk = clk_get(NULL, "audmux");
-               if (IS_ERR(audmux_clk)) {
-                       ret = PTR_ERR(audmux_clk);
-                       printk(KERN_ERR "%s: cannot get clock: %d\n", __func__,
-                                       ret);
-                       return ret;
-               }
-               audmux_base = MX35_IO_ADDRESS(MX35_AUDMUX_BASE_ADDR);
-       } else if (cpu_is_mx25()) {
-               audmux_clk = clk_get(NULL, "audmux");
-               if (IS_ERR(audmux_clk)) {
-                       ret = PTR_ERR(audmux_clk);
-                       printk(KERN_ERR "%s: cannot get clock: %d\n", __func__,
-                                       ret);
-                       return ret;
-               }
-               audmux_base = MX25_IO_ADDRESS(MX25_AUDMUX_BASE_ADDR);
-       }
-
-       audmux_debugfs_init();
-
-       return 0;
-}
-
-postcore_initcall(mxc_audmux_v2_init);
diff --git a/arch/arm/plat-mxc/audmux.c b/arch/arm/plat-mxc/audmux.c
new file mode 100644 (file)
index 0000000..b49a39f
--- /dev/null
@@ -0,0 +1,242 @@
+/*
+ * Copyright 2009 Pengutronix, Sascha Hauer <s.hauer@pengutronix.de>
+ *
+ * Initial development of this code was funded by
+ * Phytec Messtechnik GmbH, http://www.phytec.de
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/debugfs.h>
+#include <linux/slab.h>
+#include <mach/audmux.h>
+#include <mach/hardware.h>
+
+static struct clk *audmux_clk;
+static void __iomem *audmux_base;
+
+#define MXC_AUDMUX_V2_PTCR(x)          ((x) * 8)
+#define MXC_AUDMUX_V2_PDCR(x)          ((x) * 8 + 4)
+
+#ifdef CONFIG_DEBUG_FS
+static struct dentry *audmux_debugfs_root;
+
+static int audmux_open_file(struct inode *inode, struct file *file)
+{
+       file->private_data = inode->i_private;
+       return 0;
+}
+
+/* There is an annoying discontinuity in the SSI numbering with regard
+ * to the Linux number of the devices */
+static const char *audmux_port_string(int port)
+{
+       switch (port) {
+       case MX31_AUDMUX_PORT1_SSI0:
+               return "imx-ssi.0";
+       case MX31_AUDMUX_PORT2_SSI1:
+               return "imx-ssi.1";
+       case MX31_AUDMUX_PORT3_SSI_PINS_3:
+               return "SSI3";
+       case MX31_AUDMUX_PORT4_SSI_PINS_4:
+               return "SSI4";
+       case MX31_AUDMUX_PORT5_SSI_PINS_5:
+               return "SSI5";
+       case MX31_AUDMUX_PORT6_SSI_PINS_6:
+               return "SSI6";
+       default:
+               return "UNKNOWN";
+       }
+}
+
+static ssize_t audmux_read_file(struct file *file, char __user *user_buf,
+                               size_t count, loff_t *ppos)
+{
+       ssize_t ret;
+       char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+       int port = (int)file->private_data;
+       u32 pdcr, ptcr;
+
+       if (!buf)
+               return -ENOMEM;
+
+       if (audmux_clk)
+               clk_enable(audmux_clk);
+
+       ptcr = readl(audmux_base + MXC_AUDMUX_V2_PTCR(port));
+       pdcr = readl(audmux_base + MXC_AUDMUX_V2_PDCR(port));
+
+       if (audmux_clk)
+               clk_disable(audmux_clk);
+
+       ret = snprintf(buf, PAGE_SIZE, "PDCR: %08x\nPTCR: %08x\n",
+                      pdcr, ptcr);
+
+       if (ptcr & MXC_AUDMUX_V2_PTCR_TFSDIR)
+               ret += snprintf(buf + ret, PAGE_SIZE - ret,
+                               "TxFS output from %s, ",
+                               audmux_port_string((ptcr >> 27) & 0x7));
+       else
+               ret += snprintf(buf + ret, PAGE_SIZE - ret,
+                               "TxFS input, ");
+
+       if (ptcr & MXC_AUDMUX_V2_PTCR_TCLKDIR)
+               ret += snprintf(buf + ret, PAGE_SIZE - ret,
+                               "TxClk output from %s",
+                               audmux_port_string((ptcr >> 22) & 0x7));
+       else
+               ret += snprintf(buf + ret, PAGE_SIZE - ret,
+                               "TxClk input");
+
+       ret += snprintf(buf + ret, PAGE_SIZE - ret, "\n");
+
+       if (ptcr & MXC_AUDMUX_V2_PTCR_SYN) {
+               ret += snprintf(buf + ret, PAGE_SIZE - ret,
+                               "Port is symmetric");
+       } else {
+               if (ptcr & MXC_AUDMUX_V2_PTCR_RFSDIR)
+                       ret += snprintf(buf + ret, PAGE_SIZE - ret,
+                                       "RxFS output from %s, ",
+                                       audmux_port_string((ptcr >> 17) & 0x7));
+               else
+                       ret += snprintf(buf + ret, PAGE_SIZE - ret,
+                                       "RxFS input, ");
+
+               if (ptcr & MXC_AUDMUX_V2_PTCR_RCLKDIR)
+                       ret += snprintf(buf + ret, PAGE_SIZE - ret,
+                                       "RxClk output from %s",
+                                       audmux_port_string((ptcr >> 12) & 0x7));
+               else
+                       ret += snprintf(buf + ret, PAGE_SIZE - ret,
+                                       "RxClk input");
+       }
+
+       ret += snprintf(buf + ret, PAGE_SIZE - ret,
+                       "\nData received from %s\n",
+                       audmux_port_string((pdcr >> 13) & 0x7));
+
+       ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
+
+       kfree(buf);
+
+       return ret;
+}
+
+static const struct file_operations audmux_debugfs_fops = {
+       .open = audmux_open_file,
+       .read = audmux_read_file,
+       .llseek = default_llseek,
+};
+
+static void audmux_debugfs_init(void)
+{
+       int i;
+       char buf[20];
+
+       audmux_debugfs_root = debugfs_create_dir("audmux", NULL);
+       if (!audmux_debugfs_root) {
+               pr_warning("Failed to create AUDMUX debugfs root\n");
+               return;
+       }
+
+       for (i = 1; i < 8; i++) {
+               snprintf(buf, sizeof(buf), "ssi%d", i);
+               if (!debugfs_create_file(buf, 0444, audmux_debugfs_root,
+                                        (void *)i, &audmux_debugfs_fops))
+                       pr_warning("Failed to create AUDMUX port %d debugfs file\n",
+                                  i);
+       }
+}
+#else
+static inline void audmux_debugfs_init(void)
+{
+}
+#endif
+
+static const uint8_t port_mapping[] = {
+       0x0, 0x4, 0x8, 0x10, 0x14, 0x1c,
+};
+
+int mxc_audmux_v1_configure_port(unsigned int port, unsigned int pcr)
+{
+       if (!audmux_base)
+               return -ENOSYS;
+
+       if (port >= ARRAY_SIZE(port_mapping))
+               return -EINVAL;
+
+       writel(pcr, audmux_base + port_mapping[port]);
+
+       return 0;
+}
+EXPORT_SYMBOL_GPL(mxc_audmux_v1_configure_port);
+
+int mxc_audmux_v2_configure_port(unsigned int port, unsigned int ptcr,
+               unsigned int pdcr)
+{
+       if (!audmux_base)
+               return -ENOSYS;
+
+       if (audmux_clk)
+               clk_enable(audmux_clk);
+
+       writel(ptcr, audmux_base + MXC_AUDMUX_V2_PTCR(port));
+       writel(pdcr, audmux_base + MXC_AUDMUX_V2_PDCR(port));
+
+       if (audmux_clk)
+               clk_disable(audmux_clk);
+
+       return 0;
+}
+EXPORT_SYMBOL_GPL(mxc_audmux_v2_configure_port);
+
+static int mxc_audmux_init(void)
+{
+       int ret;
+       if (cpu_is_mx51()) {
+               audmux_base = MX51_IO_ADDRESS(MX51_AUDMUX_BASE_ADDR);
+       } else if (cpu_is_mx31()) {
+               audmux_base = MX31_IO_ADDRESS(MX31_AUDMUX_BASE_ADDR);
+       } else if (cpu_is_mx35()) {
+               audmux_clk = clk_get(NULL, "audmux");
+               if (IS_ERR(audmux_clk)) {
+                       ret = PTR_ERR(audmux_clk);
+                       printk(KERN_ERR "%s: cannot get clock: %d\n", __func__,
+                                       ret);
+                       return ret;
+               }
+               audmux_base = MX35_IO_ADDRESS(MX35_AUDMUX_BASE_ADDR);
+       } else if (cpu_is_mx25()) {
+               audmux_clk = clk_get(NULL, "audmux");
+               if (IS_ERR(audmux_clk)) {
+                       ret = PTR_ERR(audmux_clk);
+                       printk(KERN_ERR "%s: cannot get clock: %d\n", __func__,
+                                       ret);
+                       return ret;
+               }
+               audmux_base = MX25_IO_ADDRESS(MX25_AUDMUX_BASE_ADDR);
+       } else if (cpu_is_mx27()) {
+               audmux_base = MX27_IO_ADDRESS(MX27_AUDMUX_BASE_ADDR);
+       } else if (cpu_is_mx21()) {
+               audmux_base = MX21_IO_ADDRESS(MX21_AUDMUX_BASE_ADDR);
+       }
+
+       if (!cpu_is_mx2())
+               audmux_debugfs_init();
+
+       return 0;
+}
+
+postcore_initcall(mxc_audmux_init);