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authorOliver Endriss <o.endriss@gmx.de>2011-01-10 09:36:10 (GMT)
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-01-17 15:35:57 (GMT)
commite90e0a5675c5d59dfc6c1c31451093784a673412 (patch)
tree134666f6d61f63c5a98ffdb76c6aecdce7127f9f
parent704be43999044ebc94738dfc5ab3d8797bf983ab (diff)
[media] stv090x: Optional external lock routine
Card driver may supply its own lock routine now. Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Manu Abraham <manu@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--drivers/media/dvb/frontends/stv090x.c21
-rw-r--r--drivers/media/dvb/frontends/stv090x.h1
2 files changed, 17 insertions, 5 deletions
diff --git a/drivers/media/dvb/frontends/stv090x.c b/drivers/media/dvb/frontends/stv090x.c
index e26bfd7..eccad06 100644
--- a/drivers/media/dvb/frontends/stv090x.c
+++ b/drivers/media/dvb/frontends/stv090x.c
@@ -767,8 +767,12 @@ static int stv090x_i2c_gate_ctrl(struct stv090x_state *state, int enable)
* In case of any error, the lock is unlocked and exit within the
* relevant operations themselves.
*/
- if (enable)
- mutex_lock(&state->internal->tuner_lock);
+ if (enable) {
+ if (state->config->tuner_i2c_lock)
+ state->config->tuner_i2c_lock(&state->frontend, 1);
+ else
+ mutex_lock(&state->internal->tuner_lock);
+ }
reg = STV090x_READ_DEMOD(state, I2CRPT);
if (enable) {
@@ -784,13 +788,20 @@ static int stv090x_i2c_gate_ctrl(struct stv090x_state *state, int enable)
goto err;
}
- if (!enable)
- mutex_unlock(&state->internal->tuner_lock);
+ if (!enable) {
+ if (state->config->tuner_i2c_lock)
+ state->config->tuner_i2c_lock(&state->frontend, 0);
+ else
+ mutex_unlock(&state->internal->tuner_lock);
+ }
return 0;
err:
dprintk(FE_ERROR, 1, "I/O error");
- mutex_unlock(&state->internal->tuner_lock);
+ if (state->config->tuner_i2c_lock)
+ state->config->tuner_i2c_lock(&state->frontend, 0);
+ else
+ mutex_unlock(&state->internal->tuner_lock);
return -1;
}
diff --git a/drivers/media/dvb/frontends/stv090x.h b/drivers/media/dvb/frontends/stv090x.h
index a3fefa7..29cdc2b 100644
--- a/drivers/media/dvb/frontends/stv090x.h
+++ b/drivers/media/dvb/frontends/stv090x.h
@@ -100,6 +100,7 @@ struct stv090x_config {
int (*tuner_get_bbgain) (struct dvb_frontend *fe, u32 *gain);
int (*tuner_set_refclk) (struct dvb_frontend *fe, u32 refclk);
int (*tuner_get_status) (struct dvb_frontend *fe, u32 *status);
+ void (*tuner_i2c_lock) (struct dvb_frontend *fe, int lock);
};
#if defined(CONFIG_DVB_STV090x) || (defined(CONFIG_DVB_STV090x_MODULE) && defined(MODULE))

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