rk29sdk: disable adc key

diff --git a/arch/arm/mach-rk29/board-rk29sdk-key.c b/arch/arm/mach-rk29/board-rk29sdk-key.c
index 6f3af7fb9446915ed2198ba6666289b066ea5a36..d7301aff91bd31f71cb7d194f7ee965eaf338b76 100755 (executable)
--- a/arch/arm/mach-rk29/board-rk29sdk-key.c
+++ b/arch/arm/mach-rk29/board-rk29sdk-key.c
@@ -100,6 +100,6 @@ static struct rk29_keys_button key_button[] = {
 struct rk29_keys_platform_data rk29_keys_pdata = {\r
        .buttons        = key_button,\r
        .nbuttons       = ARRAY_SIZE(key_button),\r
-       .chn    = 1,  //chn: 0-7, if do not use ADC,set 'chn' -1\r
+       .chn    = -1,  //chn: 0-7, if do not use ADC,set 'chn' -1\r
 };\r
 \r