ASoC: add AD1980 obsolete information

This codec has been obsoleted by ADI, so add appropriate warnings to the
source tree to dissuade people from using in new designs based on driver
support.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

2 files changed, 15 insertions, 2 deletions

diff --git a/sound/soc/blackfin/Kconfig b/sound/soc/blackfin/Kconfig
index 8ef25025f3dc..3abeeddc67d3 100644
--- a/sound/soc/blackfin/Kconfig
+++ b/sound/soc/blackfin/Kconfig
@@ -105,13 +105,18 @@ config SND_BF5XX_RESET_GPIO_NUM
           Set the correct GPIO for RESET the sound chip.
 
 config SND_BF5XX_SOC_AD1980
-        tristate "SoC AD1980/1 Audio support for BF5xx"
+        tristate "SoC AD1980/1 Audio support for BF5xx (Obsolete)"
         depends on SND_BF5XX_AC97
         select SND_BF5XX_SOC_AC97
         select SND_SOC_AD1980
         help
           Say Y if you want to add support for SoC audio on BF5xx STAMP/EZKIT.
 
+          Warning:
+          Because Analog Devices Inc. discontinued the ad1980 sound chip since
+          Sep. 2009, this ad1980 driver is not maintained, tested and supported
+          by ADI now.
+
 config SND_BF5XX_SOC_SPORT
         tristate
 
diff --git a/sound/soc/blackfin/bf5xx-ad1980.c b/sound/soc/blackfin/bf5xx-ad1980.c
index d8f591273778..92f7c327bb7a 100644
--- a/sound/soc/blackfin/bf5xx-ad1980.c
+++ b/sound/soc/blackfin/bf5xx-ad1980.c
@@ -26,6 +26,14 @@
  * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
+/*
+ * WARNING:
+ *
+ * Because Analog Devices Inc. discontinued the ad1980 sound chip since
+ * Sep. 2009, this ad1980 driver is not maintained, tested and supported
+ * by ADI now.
+ */
+
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/device.h>
@@ -109,5 +117,5 @@ module_exit(bf5xx_board_exit);
 
 /* Module information */
 MODULE_AUTHOR("Cliff Cai");
-MODULE_DESCRIPTION("ALSA SoC AD1980/1 BF5xx board");
+MODULE_DESCRIPTION("ALSA SoC AD1980/1 BF5xx board (Obsolete)");
 MODULE_LICENSE("GPL");