55 static int mc33880_write_config(struct mc33880 *mc)  in mc33880_write_config()  argument
57 	return spi_write(mc->spi, &mc->port_config, sizeof(mc->port_config));  in mc33880_write_config()
61 static int __mc33880_set(struct mc33880 *mc, unsigned offset, int value)  in __mc33880_set()  argument
64 		mc->port_config |= 1 << offset;  in __mc33880_set()
66 		mc->port_config &= ~(1 << offset);  in __mc33880_set()
68 	return mc33880_write_config(mc);  in __mc33880_set()
74 	struct mc33880 *mc = container_of(chip, struct mc33880, chip);  in mc33880_set()  local
76 	mutex_lock(&mc->lock);  in mc33880_set()
78 	__mc33880_set(mc, offset, value);  in mc33880_set()
80 	mutex_unlock(&mc->lock);  in mc33880_set()
85 	struct mc33880 *mc;  in mc33880_probe()  local
104 	mc = devm_kzalloc(&spi->dev, sizeof(struct mc33880), GFP_KERNEL);  in mc33880_probe()
105 	if (!mc)  in mc33880_probe()
108 	mutex_init(&mc->lock);  in mc33880_probe()
110 	spi_set_drvdata(spi, mc);  in mc33880_probe()
112 	mc->spi = spi;  in mc33880_probe()
114 	mc->chip.label = DRIVER_NAME,  in mc33880_probe()
115 	mc->chip.set = mc33880_set;  in mc33880_probe()
116 	mc->chip.base = pdata->base;  in mc33880_probe()
117 	mc->chip.ngpio = PIN_NUMBER;  in mc33880_probe()
118 	mc->chip.can_sleep = true;  in mc33880_probe()
119 	mc->chip.dev = &spi->dev;  in mc33880_probe()
120 	mc->chip.owner = THIS_MODULE;  in mc33880_probe()
122 	mc->port_config = 0x00;  in mc33880_probe()
127 	ret = mc33880_write_config(mc);  in mc33880_probe()
128 	mc->port_config = 0x00;  in mc33880_probe()
130 		ret = mc33880_write_config(mc);  in mc33880_probe()
138 	ret = gpiochip_add(&mc->chip);  in mc33880_probe()
145 	mutex_destroy(&mc->lock);  in mc33880_probe()
151 	struct mc33880 *mc;  in mc33880_remove()  local
153 	mc = spi_get_drvdata(spi);  in mc33880_remove()
154 	if (!mc)  in mc33880_remove()
157 	gpiochip_remove(&mc->chip);  in mc33880_remove()
158 	mutex_destroy(&mc->lock);  in mc33880_remove()