50 #define BANK_SZ 8
55  * @dev: udevice structure for the device
65 	struct udevice *dev;  member
75 static int pca953x_write_single(struct udevice *dev, int reg, u8 val,  in pca953x_write_single()  argument
78 	struct pca953x_info *info = dev_get_platdata(dev);  in pca953x_write_single()
83 	ret = dm_i2c_write(dev, (reg << bank_shift) + off, &val, 1);  in pca953x_write_single()
85 		dev_err(dev, "%s error\n", __func__);  in pca953x_write_single()
92 static int pca953x_read_single(struct udevice *dev, int reg, u8 *val,  in pca953x_read_single()  argument
95 	struct pca953x_info *info = dev_get_platdata(dev);  in pca953x_read_single()
101 	ret = dm_i2c_read(dev, (reg << bank_shift) + off, &byte, 1);  in pca953x_read_single()
103 		dev_err(dev, "%s error\n", __func__);  in pca953x_read_single()
112 static int pca953x_read_regs(struct udevice *dev, int reg, u8 *val)  in pca953x_read_regs()  argument
114 	struct pca953x_info *info = dev_get_platdata(dev);  in pca953x_read_regs()
117 	if (info->gpio_count <= 8) {  in pca953x_read_regs()
118 		ret = dm_i2c_read(dev, reg, val, 1);  in pca953x_read_regs()
120 		ret = dm_i2c_read(dev, reg << 1, val, info->bank_count);  in pca953x_read_regs()
123 		ret = dm_i2c_read(dev, (reg << 3) | 0x80, val,  in pca953x_read_regs()
126 		dev_err(dev, "Unsupported now\n");  in pca953x_read_regs()
133 static int pca953x_write_regs(struct udevice *dev, int reg, u8 *val)  in pca953x_write_regs()  argument
135 	struct pca953x_info *info = dev_get_platdata(dev);  in pca953x_write_regs()
138 	if (info->gpio_count <= 8) {  in pca953x_write_regs()
139 		ret = dm_i2c_write(dev, reg, val, 1);  in pca953x_write_regs()
141 		ret = dm_i2c_write(dev, reg << 1, val, info->bank_count);  in pca953x_write_regs()
144 		ret = dm_i2c_write(dev, (reg << 3) | 0x80, val, info->bank_count);  in pca953x_write_regs()
152 static int pca953x_is_output(struct udevice *dev, int offset)  in pca953x_is_output()  argument
154 	struct pca953x_info *info = dev_get_platdata(dev);  in pca953x_is_output()
163 static int pca953x_get_value(struct udevice *dev, uint offset)  in pca953x_get_value()  argument
170 	ret = pca953x_read_single(dev, PCA953X_INPUT, &val, offset);  in pca953x_get_value()
177 static int pca953x_set_value(struct udevice *dev, uint offset, int value)  in pca953x_set_value()  argument
179 	struct pca953x_info *info = dev_get_platdata(dev);  in pca953x_set_value()
190 	ret = pca953x_write_single(dev, PCA953X_OUTPUT, val, offset);  in pca953x_set_value()
199 static int pca953x_set_direction(struct udevice *dev, uint offset, int dir)  in pca953x_set_direction()  argument
201 	struct pca953x_info *info = dev_get_platdata(dev);  in pca953x_set_direction()
212 	ret = pca953x_write_single(dev, PCA953X_DIRECTION, val, offset);  in pca953x_set_direction()
221 static int pca953x_direction_input(struct udevice *dev, uint offset)  in pca953x_direction_input()  argument
223 	return pca953x_set_direction(dev, offset, PCA953X_DIRECTION_IN);  in pca953x_direction_input()
226 static int pca953x_direction_output(struct udevice *dev, uint offset, int value)  in pca953x_direction_output()  argument
229 	pca953x_set_value(dev, offset, value);  in pca953x_direction_output()
232 	pca953x_set_direction(dev, offset, PCA953X_DIRECTION_OUT);  in pca953x_direction_output()
237 static int pca953x_get_function(struct udevice *dev, uint offset)  in pca953x_get_function()  argument
239 	if (pca953x_is_output(dev, offset))  in pca953x_get_function()
245 static int pca953x_xlate(struct udevice *dev, struct gpio_desc *desc,  in pca953x_xlate()  argument
263 static int pca953x_probe(struct udevice *dev)  in pca953x_probe()  argument
265 	struct pca953x_info *info = dev_get_platdata(dev);  in pca953x_probe()
266 	struct gpio_dev_priv *uc_priv = dev_get_uclass_priv(dev);  in pca953x_probe()
267 	char name[32], label[8], *str;  in pca953x_probe()
275 	addr = dev_read_addr(dev);  in pca953x_probe()
281 	driver_data = dev_get_driver_data(dev);  in pca953x_probe()
285 		dev_err(dev, "Max support %d pins now\n", MAX_BANK * BANK_SZ);  in pca953x_probe()
291 		dev_err(dev, "Only support PCA953X chip type now.\n");  in pca953x_probe()
297 	ret = pca953x_read_regs(dev, PCA953X_OUTPUT, info->reg_output);  in pca953x_probe()
299 		dev_err(dev, "Error reading output register\n");  in pca953x_probe()
303 	ret = pca953x_read_regs(dev, PCA953X_DIRECTION, info->reg_direction);  in pca953x_probe()
305 		dev_err(dev, "Error reading direction register\n");  in pca953x_probe()
309 	tmp = dev_read_prop(dev, "label", &size);  in pca953x_probe()
321 	ret = pca953x_write_regs(dev, PCA953X_INVERT, val);  in pca953x_probe()
323 		dev_err(dev, "Error writing invert register\n");  in pca953x_probe()
333 	dev_dbg(dev, "%s is ready\n", str);  in pca953x_probe()
343 	{ .compatible = "nxp,pca9534", .data = OF_953X(8, PCA_INT), },
347 	{ .compatible = "nxp,pca9538", .data = OF_953X(8, PCA_INT), },
349 	{ .compatible = "nxp,pca9554", .data = OF_953X(8, PCA_INT), },
351 	{ .compatible = "nxp,pca9556", .data = OF_953X(8, 0), },
352 	{ .compatible = "nxp,pca9557", .data = OF_953X(8, 0), },
353 	{ .compatible = "nxp,pca9574", .data = OF_957X(8, PCA_INT), },
357 	{ .compatible = "maxim,max7310", .data = OF_953X(8, 0), },
360 	{ .compatible = "maxim,max7315", .data = OF_953X(8, PCA_INT), },
362 	{ .compatible = "ti,pca6107", .data = OF_953X(8, PCA_INT), },
363 	{ .compatible = "ti,tca6408", .data = OF_953X(8, PCA_INT), },
367 	{ .compatible = "onsemi,pca9654", .data = OF_953X(8, PCA_INT), },
369 	{ .compatible = "exar,xra1202", .data = OF_953X(8, 0), },