From b23208aad3e8bc60e6eab9bbfb65030137611398 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andy.shevchenko@gmail.com>
Date: Wed, 13 Oct 2010 11:22:22 +0300
Subject: [PATCH] --- yaml --- r: 219018 b: refs/heads/master c:
 703aae3d09a4b351866f1a97b2afafb905bdbf1e h: refs/heads/master v: v3

---
 [refs]                           |  2 +-
 trunk/drivers/mmc/core/debugfs.c | 35 ++++++++++++++++++++++++++++++--
 2 files changed, 34 insertions(+), 3 deletions(-)

diff --git a/[refs] b/[refs]
index 2a222e3ec13b..a270260f9d54 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 643a81ff3c5a89ae5c0768f89b29d3e1d08be5c3
+refs/heads/master: 703aae3d09a4b351866f1a97b2afafb905bdbf1e
diff --git a/trunk/drivers/mmc/core/debugfs.c b/trunk/drivers/mmc/core/debugfs.c
index 46bc6d7551a3..eed1405fd742 100644
--- a/trunk/drivers/mmc/core/debugfs.c
+++ b/trunk/drivers/mmc/core/debugfs.c
@@ -134,6 +134,33 @@ static const struct file_operations mmc_ios_fops = {
 	.release	= single_release,
 };
 
+static int mmc_clock_opt_get(void *data, u64 *val)
+{
+	struct mmc_host *host = data;
+
+	*val = host->ios.clock;
+
+	return 0;
+}
+
+static int mmc_clock_opt_set(void *data, u64 val)
+{
+	struct mmc_host *host = data;
+
+	/* We need this check due to input value is u64 */
+	if (val > host->f_max)
+		return -EINVAL;
+
+	mmc_claim_host(host);
+	mmc_set_clock(host, (unsigned int) val);
+	mmc_release_host(host);
+
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(mmc_clock_fops, mmc_clock_opt_get, mmc_clock_opt_set,
+	"%llu\n");
+
 void mmc_add_host_debugfs(struct mmc_host *host)
 {
 	struct dentry *root;
@@ -150,11 +177,15 @@ void mmc_add_host_debugfs(struct mmc_host *host)
 	host->debugfs_root = root;
 
 	if (!debugfs_create_file("ios", S_IRUSR, root, host, &mmc_ios_fops))
-		goto err_ios;
+		goto err_node;
+
+	if (!debugfs_create_file("clock", S_IRUSR | S_IWUSR, root, host,
+			&mmc_clock_fops))
+		goto err_node;
 
 	return;
 
-err_ios:
+err_node:
 	debugfs_remove_recursive(root);
 	host->debugfs_root = NULL;
 err_root: