media: cec-pin: create cec_pin_start_timer() function

This function will be needed for injecting a custom pulse.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/drivers/media/cec/cec-pin-priv.h b/drivers/media/cec/cec-pin-priv.h
index cf41c42..4571a00 100644 (file)
--- a/drivers/media/cec/cec-pin-priv.h
+++ b/drivers/media/cec/cec-pin-priv.h
@@ -118,4 +118,6 @@ struct cec_pin {
        u32                             timer_sum_overrun;
 };
 
+void cec_pin_start_timer(struct cec_pin *pin);
+
 #endif

diff --git a/drivers/media/cec/cec-pin.c b/drivers/media/cec/cec-pin.c
index 8e834b9..67d6ea9 100644 (file)
--- a/drivers/media/cec/cec-pin.c
+++ b/drivers/media/cec/cec-pin.c
@@ -680,6 +680,18 @@ static int cec_pin_adap_log_addr(struct cec_adapter *adap, u8 log_addr)
        return 0;
 }
 
+void cec_pin_start_timer(struct cec_pin *pin)
+{
+       if (pin->state != CEC_ST_RX_IRQ)
+               return;
+
+       atomic_set(&pin->work_irq_change, CEC_PIN_IRQ_UNCHANGED);
+       pin->ops->disable_irq(pin->adap);
+       cec_pin_high(pin);
+       cec_pin_to_idle(pin);
+       hrtimer_start(&pin->timer, ns_to_ktime(0), HRTIMER_MODE_REL);
+}
+
 static int cec_pin_adap_transmit(struct cec_adapter *adap, u8 attempts,
                                      u32 signal_free_time, struct cec_msg *msg)
 {
@@ -689,14 +701,7 @@ static int cec_pin_adap_transmit(struct cec_adapter *adap, u8 attempts,
        pin->tx_msg = *msg;
        pin->work_tx_status = 0;
        pin->tx_bit = 0;
-       if (pin->state == CEC_ST_RX_IRQ) {
-               atomic_set(&pin->work_irq_change, CEC_PIN_IRQ_UNCHANGED);
-               pin->ops->disable_irq(adap);
-               cec_pin_high(pin);
-               cec_pin_to_idle(pin);
-               hrtimer_start(&pin->timer, ns_to_ktime(0),
-                             HRTIMER_MODE_REL);
-       }
+       cec_pin_start_timer(pin);
        return 0;
 }