[media] media: ths7353: add support for ths7353 video amplifier

The patch adds support for THS7353 video amplifier.
The the THS7353 amplifier is very much similar to the
existing THS7303 video amplifier driver.
This patch appropriately makes changes to the existing
ths7303 driver and adds support for the THS7353.
This patch also adds V4L2_IDENT_THS7353 for the THS7353
chip and appropriate changes to Kconfig file for building.
Signed-off-by: Lad, Prabhakar <prabhakar.lad@ti.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Martin Bugge <marbugge@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/i2c/Kconfig

@@ -550,10 +550,10 @@ config VIDEO_UPD64083
 comment "Miscelaneous helper chips"
 
 config VIDEO_THS7303
-	tristate "THS7303 Video Amplifier"
-	depends on I2C
+	tristate "THS7303/53 Video Amplifier"
+	depends on VIDEO_V4L2 && I2C
 	help
-	  Support for TI THS7303 video amplifier
+	  Support for TI THS7303/53 video amplifier
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called ths7303.

include/media/ths7303.h

+/*
+ * Copyright (C) 2013 Texas Instruments Inc
+ *
+ * Copyright 2013 Cisco Systems, Inc. and/or its affiliates.
+ *
+ * Contributors:
+ *     Hans Verkuil <hans.verkuil@cisco.com>
+ *     Lad, Prabhakar <prabhakar.lad@ti.com>
+ *     Martin Bugge <marbugge@cisco.com>
+ *
+ * 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 version 2.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#ifndef THS7353_H
+#define THS7353_H
+
+/**
+ * struct ths7303_platform_data - Platform dependent data
+ * @ch_1: Bias value for channel one.
+ * @ch_2: Bias value for channel two.
+ * @ch_3: Bias value for channel three.
+ * @init_enable: initalize on init.
+ */
+struct ths7303_platform_data {
+	u8 ch_1;
+	u8 ch_2;
+	u8 ch_3;
+	u8 init_enable;
+};
+
+#endif

include/media/v4l2-chip-ident.h

@@ -188,6 +188,9 @@ enum {
 	/* module adv7343: just ident 7343 */
 	V4L2_IDENT_ADV7343 = 7343,
 
+	/* module ths7353: just ident 7353 */
+	V4L2_IDENT_THS7353 = 7353,
+
 	/* module adv7393: just ident 7393 */
 	V4L2_IDENT_ADV7393 = 7393,