V4L/DVB (9764): em28xx: Add support for suspend the device when not used

Several chips may be turned off when the device is not used, like audio,
video and dvb demods. This patch adds a gpio callback at the core
structs to allow turning off such devices.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h
index b2b41b3635e2..b505d44fed87 100644
--- a/drivers/media/video/em28xx/em28xx.h
+++ b/drivers/media/video/em28xx/em28xx.h
@@ -160,7 +160,7 @@
 #define EM2800_I2C_WRITE_TIMEOUT 20
 
 enum em28xx_mode {
-        EM28XX_MODE_UNDEFINED,
+        EM28XX_SUSPEND,
         EM28XX_ANALOG_MODE,
         EM28XX_DIGITAL_MODE,
 };
@@ -336,6 +336,7 @@ struct em28xx_board {
         unsigned int tda9887_conf;
 
         struct em28xx_reg_seq *dvb_gpio;
+        struct em28xx_reg_seq *suspend_gpio;
 
         unsigned int is_em2800:1;
         unsigned int has_msp34xx:1;