Lines Matching defs:arb

44 	const struct i2c_arbitrator_data *arb = i2c_mux_priv(muxc);
48 	stop_time = jiffies + usecs_to_jiffies(arb->wait_free_us) + 1;
51 		gpiod_set_value(arb->our_gpio, 1);
52 		udelay(arb->slew_delay_us);
55 		stop_retry = jiffies + usecs_to_jiffies(arb->wait_retry_us) + 1;
57 			int gpio_val = gpiod_get_value(arb->their_gpio);
68 		gpiod_set_value(arb->our_gpio, 0);
70 		usleep_range(arb->wait_retry_us, arb->wait_retry_us * 2);
74 	gpiod_set_value(arb->our_gpio, 0);
75 	udelay(arb->slew_delay_us);
87 	const struct i2c_arbitrator_data *arb = i2c_mux_priv(muxc);
90 	gpiod_set_value(arb->our_gpio, 0);
91 	udelay(arb->slew_delay_us);
102 	struct i2c_arbitrator_data *arb;
116 	muxc = i2c_mux_alloc(NULL, dev, 1, sizeof(*arb), I2C_MUX_ARBITRATOR,
120 	arb = i2c_mux_priv(muxc);
125 	arb->our_gpio = devm_gpiod_get(dev, "our-claim", GPIOD_OUT_LOW);
126 	if (IS_ERR(arb->our_gpio)) {
128 			PTR_ERR(arb->our_gpio));
129 		return PTR_ERR(arb->our_gpio);
132 	arb->their_gpio = devm_gpiod_get(dev, "their-claim", GPIOD_IN);
133 	if (IS_ERR(arb->their_gpio)) {
135 			PTR_ERR(arb->their_gpio));
136 		return PTR_ERR(arb->their_gpio);
149 	if (of_property_read_u32(np, "slew-delay-us", &arb->slew_delay_us))
150 		arb->slew_delay_us = 10;
151 	if (of_property_read_u32(np, "wait-retry-us", &arb->wait_retry_us))
152 		arb->wait_retry_us = 3000;
153 	if (of_property_read_u32(np, "wait-free-us", &arb->wait_free_us))
154 		arb->wait_free_us = 50000;
186 	{ .compatible = "i2c-arb-gpio-challenge", },
195 		.name	= "i2c-arb-gpio-challenge",
205 MODULE_ALIAS("platform:i2c-arb-gpio-challenge");