Hi:

Huang Shijie writes:

quoted

These files contain the common code for the GPMI driver.

Signed-off-by: Huang Shijie<redacted>
---
  drivers/mtd/nand/gpmi-nfc/gpmi-nfc.c | 2501 ++++++++++++++++++++++++++++++++++
  drivers/mtd/nand/gpmi-nfc/gpmi-nfc.h |  488 +++++++
  2 files changed, 2989 insertions(+), 0 deletions(-)
  create mode 100644 drivers/mtd/nand/gpmi-nfc/gpmi-nfc.c
  create mode 100644 drivers/mtd/nand/gpmi-nfc/gpmi-nfc.h

diff --git a/drivers/mtd/nand/gpmi-nfc/gpmi-nfc.c b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc.c
new file mode 100644
index 0000000..53d6915
--- /dev/null
+++ b/drivers/mtd/nand/gpmi-nfc/gpmi-nfc.c

@@ -0,0 +1,2501 @@
+/*
+ * Freescale GPMI NFC NAND Flash Driver
+ *
+ * Copyright (C) 2010-2011 Freescale Semiconductor, Inc.
+ * Copyright (C) 2008 Embedded Alley Solutions, Inc.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#include<linux/slab.h>
+#include "gpmi-nfc.h"
+
+/* add our owner bbt descriptor */
+static uint8_t scan_ff_pattern[] = { 0xff };
+static struct nand_bbt_descr gpmi_bbt_descr = {
+	.options	= 0,
+	.offs		= 0,
+	.len		= 1,
+	.pattern	= scan_ff_pattern
+};
+
+/* debug control */
+int gpmi_debug;
+

This could be a module_param.

I think the module_param is not easy to use.
I want to know the log when the gpmi driver is running, and change the 
log level as soon
as my need changs.

So I prefer to use the origin method.


Best Regards
Huang Shijie