From f3dc3630f687aa4664b663143f69d99d83195c54 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Wed, 6 Feb 2008 01:39:03 -0800 Subject: [PATCH] gpio: rename pca953x symbols This second part of an extension to support more pca953x chips renames the C and Kconfig symbols. All affected files were updated by sed, except for a couple of obvious exceptions. It also updates the Kconfig helptext. Signed-off-by: Guennadi Liakhovetski Signed-off-by: David Brownell Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/gpio/Kconfig | 11 ++-- drivers/gpio/Makefile | 2 +- drivers/gpio/pca953x.c | 110 ++++++++++++++++++------------------ include/linux/i2c/pca953x.h | 2 +- 4 files changed, 63 insertions(+), 62 deletions(-) diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index 74fac0f5c3..bbd28342e7 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -27,15 +27,16 @@ config DEBUG_GPIO comment "I2C GPIO expanders:" -config GPIO_PCA9539 - tristate "PCA9539 16-bit I/O port" +config GPIO_PCA953X + tristate "PCA953x I/O ports" depends on I2C help - Say yes here to support the PCA9539 16-bit I/O port. These - parts are made by NXP and TI. + Say yes here to support the PCA9534 (8-bit), PCA9535 (16-bit), + PCA9536 (4-bit), PCA9537 (4-bit), PCA9538 (8-bit), and PCA9539 + (16-bit) I/O ports. These parts are made by NXP and TI. This driver can also be built as a module. If so, the module - will be called pca9539. + will be called pca953x. config GPIO_PCF857X tristate "PCF857x, PCA857x, and PCA967x I2C GPIO expanders" diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 16dda772b4..fdde9923cf 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -5,5 +5,5 @@ ccflags-$(CONFIG_DEBUG_GPIO) += -DDEBUG obj-$(CONFIG_HAVE_GPIO_LIB) += gpiolib.o obj-$(CONFIG_GPIO_MCP23S08) += mcp23s08.o -obj-$(CONFIG_GPIO_PCA9539) += pca953x.o +obj-$(CONFIG_GPIO_PCA953X) += pca953x.o obj-$(CONFIG_GPIO_PCF857X) += pcf857x.o diff --git a/drivers/gpio/pca953x.c b/drivers/gpio/pca953x.c index 7fae4e500d..ef1fe24bcb 100644 --- a/drivers/gpio/pca953x.c +++ b/drivers/gpio/pca953x.c @@ -1,5 +1,5 @@ /* - * pca9539.c - 16-bit I/O port with interrupt and reset + * pca953x.c - 16-bit I/O port with interrupt and reset * * Copyright (C) 2005 Ben Gardner * Copyright (C) 2007 Marvell International Ltd. @@ -19,14 +19,14 @@ #include -#define NR_PCA9539_GPIOS 16 +#define NR_PCA953X_GPIOS 16 -#define PCA9539_INPUT 0 -#define PCA9539_OUTPUT 2 -#define PCA9539_INVERT 4 -#define PCA9539_DIRECTION 6 +#define PCA953X_INPUT 0 +#define PCA953X_OUTPUT 2 +#define PCA953X_INVERT 4 +#define PCA953X_DIRECTION 6 -struct pca9539_chip { +struct pca953x_chip { unsigned gpio_start; uint16_t reg_output; uint16_t reg_direction; @@ -38,7 +38,7 @@ struct pca9539_chip { /* NOTE: we can't currently rely on fault codes to come from SMBus * calls, so we map all errors to EIO here and return zero otherwise. */ -static int pca9539_write_reg(struct pca9539_chip *chip, int reg, uint16_t val) +static int pca953x_write_reg(struct pca953x_chip *chip, int reg, uint16_t val) { if (i2c_smbus_write_word_data(chip->client, reg, val) < 0) return -EIO; @@ -46,7 +46,7 @@ static int pca9539_write_reg(struct pca9539_chip *chip, int reg, uint16_t val) return 0; } -static int pca9539_read_reg(struct pca9539_chip *chip, int reg, uint16_t *val) +static int pca953x_read_reg(struct pca953x_chip *chip, int reg, uint16_t *val) { int ret; @@ -60,16 +60,16 @@ static int pca9539_read_reg(struct pca9539_chip *chip, int reg, uint16_t *val) return 0; } -static int pca9539_gpio_direction_input(struct gpio_chip *gc, unsigned off) +static int pca953x_gpio_direction_input(struct gpio_chip *gc, unsigned off) { - struct pca9539_chip *chip; + struct pca953x_chip *chip; uint16_t reg_val; int ret; - chip = container_of(gc, struct pca9539_chip, gpio_chip); + chip = container_of(gc, struct pca953x_chip, gpio_chip); reg_val = chip->reg_direction | (1u << off); - ret = pca9539_write_reg(chip, PCA9539_DIRECTION, reg_val); + ret = pca953x_write_reg(chip, PCA953X_DIRECTION, reg_val); if (ret) return ret; @@ -77,14 +77,14 @@ static int pca9539_gpio_direction_input(struct gpio_chip *gc, unsigned off) return 0; } -static int pca9539_gpio_direction_output(struct gpio_chip *gc, +static int pca953x_gpio_direction_output(struct gpio_chip *gc, unsigned off, int val) { - struct pca9539_chip *chip; + struct pca953x_chip *chip; uint16_t reg_val; int ret; - chip = container_of(gc, struct pca9539_chip, gpio_chip); + chip = container_of(gc, struct pca953x_chip, gpio_chip); /* set output level */ if (val) @@ -92,7 +92,7 @@ static int pca9539_gpio_direction_output(struct gpio_chip *gc, else reg_val = chip->reg_output & ~(1u << off); - ret = pca9539_write_reg(chip, PCA9539_OUTPUT, reg_val); + ret = pca953x_write_reg(chip, PCA953X_OUTPUT, reg_val); if (ret) return ret; @@ -100,7 +100,7 @@ static int pca9539_gpio_direction_output(struct gpio_chip *gc, /* then direction */ reg_val = chip->reg_direction & ~(1u << off); - ret = pca9539_write_reg(chip, PCA9539_DIRECTION, reg_val); + ret = pca953x_write_reg(chip, PCA953X_DIRECTION, reg_val); if (ret) return ret; @@ -108,15 +108,15 @@ static int pca9539_gpio_direction_output(struct gpio_chip *gc, return 0; } -static int pca9539_gpio_get_value(struct gpio_chip *gc, unsigned off) +static int pca953x_gpio_get_value(struct gpio_chip *gc, unsigned off) { - struct pca9539_chip *chip; + struct pca953x_chip *chip; uint16_t reg_val; int ret; - chip = container_of(gc, struct pca9539_chip, gpio_chip); + chip = container_of(gc, struct pca953x_chip, gpio_chip); - ret = pca9539_read_reg(chip, PCA9539_INPUT, ®_val); + ret = pca953x_read_reg(chip, PCA953X_INPUT, ®_val); if (ret < 0) { /* NOTE: diagnostic already emitted; that's all we should * do unless gpio_*_value_cansleep() calls become different @@ -128,55 +128,55 @@ static int pca9539_gpio_get_value(struct gpio_chip *gc, unsigned off) return (reg_val & (1u << off)) ? 1 : 0; } -static void pca9539_gpio_set_value(struct gpio_chip *gc, unsigned off, int val) +static void pca953x_gpio_set_value(struct gpio_chip *gc, unsigned off, int val) { - struct pca9539_chip *chip; + struct pca953x_chip *chip; uint16_t reg_val; int ret; - chip = container_of(gc, struct pca9539_chip, gpio_chip); + chip = container_of(gc, struct pca953x_chip, gpio_chip); if (val) reg_val = chip->reg_output | (1u << off); else reg_val = chip->reg_output & ~(1u << off); - ret = pca9539_write_reg(chip, PCA9539_OUTPUT, reg_val); + ret = pca953x_write_reg(chip, PCA953X_OUTPUT, reg_val); if (ret) return; chip->reg_output = reg_val; } -static int pca9539_init_gpio(struct pca9539_chip *chip) +static int pca953x_init_gpio(struct pca953x_chip *chip) { struct gpio_chip *gc; gc = &chip->gpio_chip; - gc->direction_input = pca9539_gpio_direction_input; - gc->direction_output = pca9539_gpio_direction_output; - gc->get = pca9539_gpio_get_value; - gc->set = pca9539_gpio_set_value; + gc->direction_input = pca953x_gpio_direction_input; + gc->direction_output = pca953x_gpio_direction_output; + gc->get = pca953x_gpio_get_value; + gc->set = pca953x_gpio_set_value; gc->base = chip->gpio_start; - gc->ngpio = NR_PCA9539_GPIOS; - gc->label = "pca9539"; + gc->ngpio = NR_PCA953X_GPIOS; + gc->label = "pca953x"; return gpiochip_add(gc); } -static int __devinit pca9539_probe(struct i2c_client *client) +static int __devinit pca953x_probe(struct i2c_client *client) { - struct pca9539_platform_data *pdata; - struct pca9539_chip *chip; + struct pca953x_platform_data *pdata; + struct pca953x_chip *chip; int ret; pdata = client->dev.platform_data; if (pdata == NULL) return -ENODEV; - chip = kzalloc(sizeof(struct pca9539_chip), GFP_KERNEL); + chip = kzalloc(sizeof(struct pca953x_chip), GFP_KERNEL); if (chip == NULL) return -ENOMEM; @@ -187,20 +187,20 @@ static int __devinit pca9539_probe(struct i2c_client *client) /* initialize cached registers from their original values. * we can't share this chip with another i2c master. */ - ret = pca9539_read_reg(chip, PCA9539_OUTPUT, &chip->reg_output); + ret = pca953x_read_reg(chip, PCA953X_OUTPUT, &chip->reg_output); if (ret) goto out_failed; - ret = pca9539_read_reg(chip, PCA9539_DIRECTION, &chip->reg_direction); + ret = pca953x_read_reg(chip, PCA953X_DIRECTION, &chip->reg_direction); if (ret) goto out_failed; /* set platform specific polarity inversion */ - ret = pca9539_write_reg(chip, PCA9539_INVERT, pdata->invert); + ret = pca953x_write_reg(chip, PCA953X_INVERT, pdata->invert); if (ret) goto out_failed; - ret = pca9539_init_gpio(chip); + ret = pca953x_init_gpio(chip); if (ret) goto out_failed; @@ -219,10 +219,10 @@ out_failed: return ret; } -static int pca9539_remove(struct i2c_client *client) +static int pca953x_remove(struct i2c_client *client) { - struct pca9539_platform_data *pdata = client->dev.platform_data; - struct pca9539_chip *chip = i2c_get_clientdata(client); + struct pca953x_platform_data *pdata = client->dev.platform_data; + struct pca953x_chip *chip = i2c_get_clientdata(client); int ret = 0; if (pdata->teardown) { @@ -246,26 +246,26 @@ static int pca9539_remove(struct i2c_client *client) return 0; } -static struct i2c_driver pca9539_driver = { +static struct i2c_driver pca953x_driver = { .driver = { - .name = "pca9539", + .name = "pca953x", }, - .probe = pca9539_probe, - .remove = pca9539_remove, + .probe = pca953x_probe, + .remove = pca953x_remove, }; -static int __init pca9539_init(void) +static int __init pca953x_init(void) { - return i2c_add_driver(&pca9539_driver); + return i2c_add_driver(&pca953x_driver); } -module_init(pca9539_init); +module_init(pca953x_init); -static void __exit pca9539_exit(void) +static void __exit pca953x_exit(void) { - i2c_del_driver(&pca9539_driver); + i2c_del_driver(&pca953x_driver); } -module_exit(pca9539_exit); +module_exit(pca953x_exit); MODULE_AUTHOR("eric miao "); -MODULE_DESCRIPTION("GPIO expander driver for PCA9539"); +MODULE_DESCRIPTION("GPIO expander driver for PCA953x"); MODULE_LICENSE("GPL"); diff --git a/include/linux/i2c/pca953x.h b/include/linux/i2c/pca953x.h index 611d84ab7a..3c7361217d 100644 --- a/include/linux/i2c/pca953x.h +++ b/include/linux/i2c/pca953x.h @@ -1,6 +1,6 @@ /* platform data for the PCA9539 16-bit I/O expander driver */ -struct pca9539_platform_data { +struct pca953x_platform_data { /* number of the first GPIO */ unsigned gpio_base; -- 2.39.5