From 84ab8eddc3e2d590489cf413ee86b9f20564994e Mon Sep 17 00:00:00 2001
From: Robert Nelson <robertcnelson@gmail.com>
Date: Thu, 29 Sep 2011 11:35:01 -0500
Subject: [PATCH 01/14] ksz8851 eeprom 93cx6 add drive_data

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
---
 drivers/misc/eeprom/eeprom_93cx6.c |    3 +++
 include/linux/eeprom_93cx6.h       |    2 ++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/misc/eeprom/eeprom_93cx6.c b/drivers/misc/eeprom/eeprom_93cx6.c
index 7b33de9..a6037af 100644
--- a/drivers/misc/eeprom/eeprom_93cx6.c
+++ b/drivers/misc/eeprom/eeprom_93cx6.c
@@ -63,6 +63,7 @@ static void eeprom_93cx6_startup(struct eeprom_93cx6 *eeprom)
 	eeprom->reg_data_out = 0;
 	eeprom->reg_data_clock = 0;
 	eeprom->reg_chip_select = 1;
+	eeprom->drive_data = 1;
 	eeprom->register_write(eeprom);
 
 	/*
@@ -101,6 +102,7 @@ static void eeprom_93cx6_write_bits(struct eeprom_93cx6 *eeprom,
 	 */
 	eeprom->reg_data_in = 0;
 	eeprom->reg_data_out = 0;
+	eeprom->drive_data = 1;
 
 	/*
 	 * Start writing all bits.
@@ -140,6 +142,7 @@ static void eeprom_93cx6_read_bits(struct eeprom_93cx6 *eeprom,
 	 */
 	eeprom->reg_data_in = 0;
 	eeprom->reg_data_out = 0;
+	eeprom->drive_data = 0;
 
 	/*
 	 * Start reading all bits.
diff --git a/include/linux/eeprom_93cx6.h b/include/linux/eeprom_93cx6.h
index c4627cb..e04546e 100644
--- a/include/linux/eeprom_93cx6.h
+++ b/include/linux/eeprom_93cx6.h
@@ -46,6 +46,7 @@
  * @register_write(struct eeprom_93cx6 *eeprom): handler to
  * write to the eeprom register by using all reg_* fields.
  * @width: eeprom width, should be one of the PCI_EEPROM_WIDTH_* defines
+ * @drive_data: Set if we're driving the data line.
  * @reg_data_in: register field to indicate data input
  * @reg_data_out: register field to indicate data output
  * @reg_data_clock: register field to set the data clock
@@ -62,6 +63,7 @@ struct eeprom_93cx6 {
 
 	int width;
 
+	char drive_data;
 	char reg_data_in;
 	char reg_data_out;
 	char reg_data_clock;
-- 
1.7.7.4

