29 	unsigned int signal = cd->min_signal, val;  in pl080_get_signal()  local
34 	/* Return if signal is already acquired by somebody else */  in pl080_get_signal()
35 	if (signals[signal].busy &&  in pl080_get_signal()
36 			(signals[signal].val != cd->muxval)) {  in pl080_get_signal()
42 	if (!signals[signal].busy) {  in pl080_get_signal()
48 		 * value by 2 * signal number.  in pl080_get_signal()
50 		val &= ~(0x3 << (signal * 2));  in pl080_get_signal()
51 		val |= cd->muxval << (signal * 2);  in pl080_get_signal()
55 	signals[signal].busy++;  in pl080_get_signal()
56 	signals[signal].val = cd->muxval;  in pl080_get_signal()
59 	return signal;  in pl080_get_signal()
62 void pl080_put_signal(const struct pl08x_channel_data *cd, int signal)  in pl080_put_signal()  argument
68 	/* if signal is not used */  in pl080_put_signal()
69 	if (!signals[signal].busy)  in pl080_put_signal()
72 	signals[signal].busy--;  in pl080_put_signal()