V4L/DVB (8529): mxl5007t: enable _init and _sleep power management functionality

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

1 files changed, 34 insertions, 8 deletions

diff --git a/drivers/media/common/tuners/mxl5007t.c b/drivers/media/common/tuners/mxl5007t.c
index 80cfa9ba1dcf..f3b193ac6614 100644
--- a/drivers/media/common/tuners/mxl5007t.c
+++ b/drivers/media/common/tuners/mxl5007t.c
@@ -830,27 +830,53 @@ fail:
 static int mxl5007t_init(struct dvb_frontend *fe)
 {
         struct mxl5007t_state *state = fe->tuner_priv;
-        //int ret;
+        int ret;
+        u8 d;
 
         mutex_lock(&state->lock);
-        /* do init */
-//fail:
+
+        if (fe->ops.i2c_gate_ctrl)
+                fe->ops.i2c_gate_ctrl(fe, 1);
+
+        ret = mxl5007t_read_reg(state, 0x05, &d);
+        if (mxl_fail(ret))
+                goto fail;
+
+        ret = mxl5007t_write_reg(state, 0x05, d | 0x01);
+        mxl_fail(ret);
+fail:
+        if (fe->ops.i2c_gate_ctrl)
+                fe->ops.i2c_gate_ctrl(fe, 0);
+
         mutex_unlock(&state->lock);
 
-        return 0;//ret;
+        return ret;
 }
 
 static int mxl5007t_sleep(struct dvb_frontend *fe)
 {
         struct mxl5007t_state *state = fe->tuner_priv;
-        //int ret;
+        int ret;
+        u8 d;
 
         mutex_lock(&state->lock);
-        /* do standby */
-//fail:
+
+        if (fe->ops.i2c_gate_ctrl)
+                fe->ops.i2c_gate_ctrl(fe, 1);
+
+        ret = mxl5007t_read_reg(state, 0x05, &d);
+        if (mxl_fail(ret))
+                goto fail;
+
+        ret = mxl5007t_write_reg(state, 0x05, d & ~0x01);
+        mxl_fail(ret);
+fail:
+        if (fe->ops.i2c_gate_ctrl)
+                fe->ops.i2c_gate_ctrl(fe, 0);
+
         mutex_unlock(&state->lock);
 
-        return 0;//ret;
+        return ret;
 }
 
 /* ------------------------------------------------------------------------- */