iio: resolver: ad2s1210: move out of staging

This moves the ad2s1210 resolver driver out of staging. The driver has
been fixed up and is ready to graduate.

Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://lore.kernel.org/r/20231010-ad2s1210-mainline-v5-4-35a0f6ffa04a@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/resolver/Kconfig

@@ -25,4 +25,17 @@ config AD2S1200
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad2s1200.
+
+config AD2S1210
+	tristate "Analog Devices ad2s1210 driver"
+	depends on SPI
+	depends on COMMON_CLK
+	depends on GPIOLIB || COMPILE_TEST
+	help
+	  Say yes here to build support for Analog Devices spi resolver
+	  to digital converters, ad2s1210, provides direct access via sysfs.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ad2s1210.
+
 endmenu

drivers/iio/resolver/Makefile

@@ -5,3 +5,4 @@
 
 obj-$(CONFIG_AD2S90) += ad2s90.o
 obj-$(CONFIG_AD2S1200) += ad2s1200.o
+obj-$(CONFIG_AD2S1210) += ad2s1210.o

drivers/staging/iio/Kconfig

@@ -10,6 +10,5 @@ source "drivers/staging/iio/adc/Kconfig"
 source "drivers/staging/iio/addac/Kconfig"
 source "drivers/staging/iio/frequency/Kconfig"
 source "drivers/staging/iio/impedance-analyzer/Kconfig"
-source "drivers/staging/iio/resolver/Kconfig"
 
 endmenu

drivers/staging/iio/Makefile

@@ -8,4 +8,3 @@ obj-y += adc/
 obj-y += addac/
 obj-y += frequency/
 obj-y += impedance-analyzer/
-obj-y += resolver/

drivers/staging/iio/resolver/Kconfig

@@ -1,19 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-#
-# Resolver/Synchro drivers
-#
-menu "Resolver to digital converters"
-
-config AD2S1210
-	tristate "Analog Devices ad2s1210 driver"
-	depends on SPI
-	depends on COMMON_CLK
-	depends on GPIOLIB || COMPILE_TEST
-	help
-	  Say yes here to build support for Analog Devices spi resolver
-	  to digital converters, ad2s1210, provides direct access via sysfs.
-
-	  To compile this driver as a module, choose M here: the
-	  module will be called ad2s1210.
-
-endmenu

drivers/staging/iio/resolver/Makefile

@@ -1,6 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-#
-# Makefile for Resolver/Synchro drivers
-#
-
-obj-$(CONFIG_AD2S1210) += ad2s1210.o