Implement em28xx_ops: suspend/resume hooks. em28xx usb driver will
invoke em28xx_ops: suspend and resume hooks for all its extensions
from its suspend() and resume() interfaces.
Signed-off-by: Shuah Khan <shuah.kh@xxxxxxxxxxx>
---
drivers/media/usb/em28xx/em28xx-dvb.c | 57 +++++++++++++++++++++++++++++++++++
1 file changed, 57 insertions(+)
diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c
index a0a669e..736b674 100644
--- a/drivers/media/usb/em28xx/em28xx-dvb.c
+++ b/drivers/media/usb/em28xx/em28xx-dvb.c
@@ -1492,11 +1492,68 @@ static int em28xx_dvb_fini(struct em28xx *dev)
return 0;
}
+static int em28xx_dvb_suspend(struct em28xx *dev)
+{
+ int ret = 0;
+
+ if (dev->is_audio_only)
+ return 0;
+
+ if (!dev->board.has_dvb)
+ return 0;
+
+ em28xx_info("Suspending DVB extension");
+ if (dev->dvb) {
+ struct em28xx_dvb *dvb = dev->dvb;
+
+ if (dvb->fe[0]) {
+ ret = dvb_frontend_suspend(dvb->fe[0]);
+ em28xx_info("fe0 suspend %d", ret);
+ }
+ if (dvb->fe[1]) {
+ dvb_frontend_suspend(dvb->fe[1]);
+ em28xx_info("fe1 suspend %d", ret);
+ }
+ }
+
+ return 0;
+}
+
+static int em28xx_dvb_resume(struct em28xx *dev)
+{
+ int ret = 0;
+
+ if (dev->is_audio_only)
+ return 0;
+
+ if (!dev->board.has_dvb)
+ return 0;
+
+ em28xx_info("Resuming DVB extension");
+ if (dev->dvb) {
+ struct em28xx_dvb *dvb = dev->dvb;
+
+ if (dvb->fe[0]) {
+ ret = dvb_frontend_resume(dvb->fe[0]);
+ em28xx_info("fe0 resume %d", ret);
+ }
+
+ if (dvb->fe[1]) {
+ ret = dvb_frontend_resume(dvb->fe[1]);
+ em28xx_info("fe1 resume %d", ret);
+ }
+ }
+
+ return 0;
+}
+
static struct em28xx_ops dvb_ops = {
.id = EM28XX_DVB,
.name = "Em28xx dvb Extension",
.init = em28xx_dvb_init,
.fini = em28xx_dvb_fini,
+ .suspend = em28xx_dvb_suspend,
+ .resume = em28xx_dvb_resume,
};
static int __init em28xx_dvb_register(void)
--
1.8.3.2
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