From 6dd808ff5c3e907e883962bfaae194f82492a3e1 Mon Sep 17 00:00:00 2001
From: Denis Karpov <ext-denis.2.karpov@nokia.com>
Date: Tue, 22 Sep 2009 16:44:38 -0700
Subject: [PATCH] --- yaml --- r: 164713 b: refs/heads/master c:
 d900f7128cf73d77467209672db2dcf0ff02dde6 h: refs/heads/master i:   164711:
 7f8dd3636f83ea6bdcb46827143be743ada9d240 v: v3

---
 [refs]                              |  2 +-
 trunk/drivers/mmc/host/omap_hsmmc.c | 57 +++++++++++++++++++++++++++++
 2 files changed, 58 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 2ffa36dad503..c3db4963148e 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ef0b27d4ccacac32afc3d1c0e8a95e4091dfbc8c
+refs/heads/master: d900f7128cf73d77467209672db2dcf0ff02dde6
diff --git a/trunk/drivers/mmc/host/omap_hsmmc.c b/trunk/drivers/mmc/host/omap_hsmmc.c
index 4b3af9e11b7b..259c07d61a81 100644
--- a/trunk/drivers/mmc/host/omap_hsmmc.c
+++ b/trunk/drivers/mmc/host/omap_hsmmc.c
@@ -17,6 +17,8 @@
 
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
@@ -974,6 +976,59 @@ static struct mmc_host_ops mmc_omap_ops = {
 	/* NYET -- enable_sdio_irq */
 };
 
+#ifdef CONFIG_DEBUG_FS
+
+static int mmc_regs_show(struct seq_file *s, void *data)
+{
+	struct mmc_host *mmc = s->private;
+	struct mmc_omap_host *host = mmc_priv(mmc);
+
+	seq_printf(s, "mmc%d regs:\n", mmc->index);
+
+	seq_printf(s, "SYSCONFIG:\t0x%08x\n",
+			OMAP_HSMMC_READ(host->base, SYSCONFIG));
+	seq_printf(s, "CON:\t\t0x%08x\n",
+			OMAP_HSMMC_READ(host->base, CON));
+	seq_printf(s, "HCTL:\t\t0x%08x\n",
+			OMAP_HSMMC_READ(host->base, HCTL));
+	seq_printf(s, "SYSCTL:\t\t0x%08x\n",
+			OMAP_HSMMC_READ(host->base, SYSCTL));
+	seq_printf(s, "IE:\t\t0x%08x\n",
+			OMAP_HSMMC_READ(host->base, IE));
+	seq_printf(s, "ISE:\t\t0x%08x\n",
+			OMAP_HSMMC_READ(host->base, ISE));
+	seq_printf(s, "CAPA:\t\t0x%08x\n",
+			OMAP_HSMMC_READ(host->base, CAPA));
+	return 0;
+}
+
+static int mmc_regs_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, mmc_regs_show, inode->i_private);
+}
+
+static const struct file_operations mmc_regs_fops = {
+	.open           = mmc_regs_open,
+	.read           = seq_read,
+	.llseek         = seq_lseek,
+	.release        = single_release,
+};
+
+static void omap_mmc_debugfs(struct mmc_host *mmc)
+{
+	if (mmc->debugfs_root)
+		debugfs_create_file("regs", S_IRUSR, mmc->debugfs_root,
+			mmc, &mmc_regs_fops);
+}
+
+#else
+
+static void omap_mmc_debugfs(struct mmc_host *mmc)
+{
+}
+
+#endif
+
 static int __init omap_mmc_probe(struct platform_device *pdev)
 {
 	struct omap_mmc_platform_data *pdata = pdev->dev.platform_data;
@@ -1157,6 +1212,8 @@ static int __init omap_mmc_probe(struct platform_device *pdev)
 			goto err_cover_switch;
 	}
 
+	omap_mmc_debugfs(mmc);
+
 	return 0;
 
 err_cover_switch: