media: cec-pin: Fixed ktime_t to ns conversion

Older Kernels use a struct for ktime_t, which requires the conversion
function ktime_to_ns to be used on some places. With this patch it will
compile now also for older Kernel versions.
Signed-off-by: Jasmin Jessich <jasmin@anw.at>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/media/cec/cec-pin.c

@@ -668,7 +668,7 @@ static void cec_pin_rx_states(struct cec_pin *pin, ktime_t ts)
 		/* Start bit low is too short, go back to idle */
 		if (delta < CEC_TIM_START_BIT_LOW_MIN - CEC_TIM_IDLE_SAMPLE) {
 			if (!pin->rx_start_bit_low_too_short_cnt++) {
-				pin->rx_start_bit_low_too_short_ts = pin->ts;
+				pin->rx_start_bit_low_too_short_ts = ktime_to_ns(pin->ts);
 				pin->rx_start_bit_low_too_short_delta = delta;
 			}
 			cec_pin_to_idle(pin);
@@ -700,7 +700,7 @@ static void cec_pin_rx_states(struct cec_pin *pin, ktime_t ts)
 		/* Start bit is too short, go back to idle */
 		if (delta < CEC_TIM_START_BIT_TOTAL_MIN - CEC_TIM_IDLE_SAMPLE) {
 			if (!pin->rx_start_bit_too_short_cnt++) {
-				pin->rx_start_bit_too_short_ts = pin->ts;
+				pin->rx_start_bit_too_short_ts = ktime_to_ns(pin->ts);
 				pin->rx_start_bit_too_short_delta = delta;
 			}
 			cec_pin_to_idle(pin);
@@ -770,7 +770,7 @@ static void cec_pin_rx_states(struct cec_pin *pin, ktime_t ts)
 		 */
 		if (delta < CEC_TIM_DATA_BIT_TOTAL_MIN) {
 			if (!pin->rx_data_bit_too_short_cnt++) {
-				pin->rx_data_bit_too_short_ts = pin->ts;
+				pin->rx_data_bit_too_short_ts = ktime_to_ns(pin->ts);
 				pin->rx_data_bit_too_short_delta = delta;
 			}
 			cec_pin_low(pin);