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, 4 insertions, 4 deletions

diff --git a/drivers/media/video/em28xx/em28xx-dvb.c b/drivers/media/video/em28xx/em28xx-dvb.c
index 09c15cc088a6..211156d458f0 100644
--- a/drivers/media/video/em28xx/em28xx-dvb.c
+++ b/drivers/media/video/em28xx/em28xx-dvb.c
@@ -161,7 +161,7 @@ static int stop_streaming(struct em28xx_dvb *dvb)
 
         em28xx_uninit_isoc(dev);
 
-        em28xx_set_mode(dev, EM28XX_MODE_UNDEFINED);
+        em28xx_set_mode(dev, EM28XX_SUSPEND);
 
         return 0;
 }
@@ -215,7 +215,7 @@ static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
         if (acquire)
                 return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
         else
-                return em28xx_set_mode(dev, EM28XX_MODE_UNDEFINED);
+                return em28xx_set_mode(dev, EM28XX_SUSPEND);
 }
 
 /* ------------------------------------------------------------------ */
@@ -466,12 +466,12 @@ static int dvb_init(struct em28xx *dev)
         if (result < 0)
                 goto out_free;
 
-        em28xx_set_mode(dev, EM28XX_MODE_UNDEFINED);
+        em28xx_set_mode(dev, EM28XX_SUSPEND);
         printk(KERN_INFO "Successfully loaded em28xx-dvb\n");
         return 0;
 
 out_free:
-        em28xx_set_mode(dev, EM28XX_MODE_UNDEFINED);
+        em28xx_set_mode(dev, EM28XX_SUSPEND);
         kfree(dvb);
         dev->dvb = NULL;
         return result;