staging:iio:resolver:ad2s1210 general driver cleanup.

Note I haven't made any changes to the userspace interface as yet.
This is all about cleaning up what was actually there (handling
all errors etc).
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/iio/resolver/Kconfig

@@ -25,30 +25,3 @@ config AD2S1210
 	  Say yes here to build support for Analog Devices spi resolver
 	  to digital converters, ad2s1210, provides direct access via sysfs.
 
-choice
-	prompt "Resolution Control"
-	depends on AD2S1210
-	default AD2S1210_GPIO_NONE
-	help
-	  In normal mode, the resolution of the digital output is selected
-	  using the RES0 and RES1 input pins. In configuration mode, the
-	  resolution is selected by setting the RES0 and RES1 bits in the
-	  control regsiter. When switching between normal mode and configuration
-	  mode, there are some schemes to keep them matchs.
-
-config AD2S1210_GPIO_INPUT
-	bool "read resolution from gpio pins"
-	help
-	  GPIO pins are sampling RES0 and RES1 pins, read the resolution
-	  settings from the GPIO pins.
-
-config AD2S1210_GPIO_OUTPUT
-	bool "set gpio pins to set resolution"
-	help
-	  RES0 and RES1 pins are controlled by GPIOs, setting GPIO pins to
-	  set the resolution.
-
-config AD2S1210_GPIO_NONE
-	bool "take the responsibility by user"
-
-endchoice

drivers/staging/iio/resolver/ad2s1210.h

+/*
+ * ad2s1210.h plaform data for the ADI Resolver to Digital Converters:
+ * AD2S1210
+ *
+ * Copyright (c) 2010-2010 Analog Devices Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+struct ad2s1210_platform_data {
+	unsigned sample;
+	unsigned a[2];
+	unsigned res[2];
+	bool gpioin;
+};