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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 <g.liakhovetski@pengutronix.de> Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Guennadi Liakhovetski
Linus Torvalds
parent
d1c057e317
commit
f3dc3630f6
@ -27,15 +27,16 @@ config DEBUG_GPIO
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comment "I2C GPIO expanders:"
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config GPIO_PCA9539
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tristate "PCA9539 16-bit I/O port"
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config GPIO_PCA953X
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tristate "PCA953x I/O ports"
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depends on I2C
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help
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Say yes here to support the PCA9539 16-bit I/O port. These
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parts are made by NXP and TI.
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Say yes here to support the PCA9534 (8-bit), PCA9535 (16-bit),
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PCA9536 (4-bit), PCA9537 (4-bit), PCA9538 (8-bit), and PCA9539
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(16-bit) I/O ports. These parts are made by NXP and TI.
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This driver can also be built as a module. If so, the module
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will be called pca9539.
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will be called pca953x.
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config GPIO_PCF857X
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tristate "PCF857x, PCA857x, and PCA967x I2C GPIO expanders"
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@ -5,5 +5,5 @@ ccflags-$(CONFIG_DEBUG_GPIO) += -DDEBUG
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obj-$(CONFIG_HAVE_GPIO_LIB) += gpiolib.o
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obj-$(CONFIG_GPIO_MCP23S08) += mcp23s08.o
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obj-$(CONFIG_GPIO_PCA9539) += pca953x.o
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obj-$(CONFIG_GPIO_PCA953X) += pca953x.o
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obj-$(CONFIG_GPIO_PCF857X) += pcf857x.o
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@ -1,5 +1,5 @@
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/*
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* pca9539.c - 16-bit I/O port with interrupt and reset
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* pca953x.c - 16-bit I/O port with interrupt and reset
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*
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* Copyright (C) 2005 Ben Gardner <bgardner@wabtec.com>
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* Copyright (C) 2007 Marvell International Ltd.
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@ -19,14 +19,14 @@
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#include <asm/gpio.h>
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#define NR_PCA9539_GPIOS 16
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#define NR_PCA953X_GPIOS 16
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#define PCA9539_INPUT 0
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#define PCA9539_OUTPUT 2
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#define PCA9539_INVERT 4
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#define PCA9539_DIRECTION 6
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#define PCA953X_INPUT 0
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#define PCA953X_OUTPUT 2
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#define PCA953X_INVERT 4
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#define PCA953X_DIRECTION 6
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struct pca9539_chip {
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struct pca953x_chip {
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unsigned gpio_start;
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uint16_t reg_output;
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uint16_t reg_direction;
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@ -38,7 +38,7 @@ struct pca9539_chip {
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/* NOTE: we can't currently rely on fault codes to come from SMBus
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* calls, so we map all errors to EIO here and return zero otherwise.
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*/
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static int pca9539_write_reg(struct pca9539_chip *chip, int reg, uint16_t val)
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static int pca953x_write_reg(struct pca953x_chip *chip, int reg, uint16_t val)
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{
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if (i2c_smbus_write_word_data(chip->client, reg, val) < 0)
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return -EIO;
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@ -46,7 +46,7 @@ static int pca9539_write_reg(struct pca9539_chip *chip, int reg, uint16_t val)
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return 0;
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}
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static int pca9539_read_reg(struct pca9539_chip *chip, int reg, uint16_t *val)
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static int pca953x_read_reg(struct pca953x_chip *chip, int reg, uint16_t *val)
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{
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int ret;
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@ -60,16 +60,16 @@ static int pca9539_read_reg(struct pca9539_chip *chip, int reg, uint16_t *val)
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return 0;
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}
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static int pca9539_gpio_direction_input(struct gpio_chip *gc, unsigned off)
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static int pca953x_gpio_direction_input(struct gpio_chip *gc, unsigned off)
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{
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struct pca9539_chip *chip;
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struct pca953x_chip *chip;
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uint16_t reg_val;
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int ret;
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chip = container_of(gc, struct pca9539_chip, gpio_chip);
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chip = container_of(gc, struct pca953x_chip, gpio_chip);
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reg_val = chip->reg_direction | (1u << off);
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ret = pca9539_write_reg(chip, PCA9539_DIRECTION, reg_val);
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ret = pca953x_write_reg(chip, PCA953X_DIRECTION, reg_val);
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if (ret)
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return ret;
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@ -77,14 +77,14 @@ static int pca9539_gpio_direction_input(struct gpio_chip *gc, unsigned off)
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return 0;
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}
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static int pca9539_gpio_direction_output(struct gpio_chip *gc,
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static int pca953x_gpio_direction_output(struct gpio_chip *gc,
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unsigned off, int val)
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{
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struct pca9539_chip *chip;
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struct pca953x_chip *chip;
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uint16_t reg_val;
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int ret;
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chip = container_of(gc, struct pca9539_chip, gpio_chip);
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chip = container_of(gc, struct pca953x_chip, gpio_chip);
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/* set output level */
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if (val)
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@ -92,7 +92,7 @@ static int pca9539_gpio_direction_output(struct gpio_chip *gc,
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else
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reg_val = chip->reg_output & ~(1u << off);
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ret = pca9539_write_reg(chip, PCA9539_OUTPUT, reg_val);
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ret = pca953x_write_reg(chip, PCA953X_OUTPUT, reg_val);
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if (ret)
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return ret;
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@ -100,7 +100,7 @@ static int pca9539_gpio_direction_output(struct gpio_chip *gc,
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/* then direction */
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reg_val = chip->reg_direction & ~(1u << off);
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ret = pca9539_write_reg(chip, PCA9539_DIRECTION, reg_val);
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ret = pca953x_write_reg(chip, PCA953X_DIRECTION, reg_val);
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if (ret)
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return ret;
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@ -108,15 +108,15 @@ static int pca9539_gpio_direction_output(struct gpio_chip *gc,
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return 0;
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}
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static int pca9539_gpio_get_value(struct gpio_chip *gc, unsigned off)
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static int pca953x_gpio_get_value(struct gpio_chip *gc, unsigned off)
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{
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struct pca9539_chip *chip;
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struct pca953x_chip *chip;
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uint16_t reg_val;
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int ret;
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chip = container_of(gc, struct pca9539_chip, gpio_chip);
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chip = container_of(gc, struct pca953x_chip, gpio_chip);
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ret = pca9539_read_reg(chip, PCA9539_INPUT, ®_val);
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ret = pca953x_read_reg(chip, PCA953X_INPUT, ®_val);
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if (ret < 0) {
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/* NOTE: diagnostic already emitted; that's all we should
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* do unless gpio_*_value_cansleep() calls become different
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@ -128,55 +128,55 @@ static int pca9539_gpio_get_value(struct gpio_chip *gc, unsigned off)
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return (reg_val & (1u << off)) ? 1 : 0;
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}
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static void pca9539_gpio_set_value(struct gpio_chip *gc, unsigned off, int val)
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static void pca953x_gpio_set_value(struct gpio_chip *gc, unsigned off, int val)
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{
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struct pca9539_chip *chip;
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struct pca953x_chip *chip;
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uint16_t reg_val;
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int ret;
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chip = container_of(gc, struct pca9539_chip, gpio_chip);
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chip = container_of(gc, struct pca953x_chip, gpio_chip);
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if (val)
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reg_val = chip->reg_output | (1u << off);
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else
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reg_val = chip->reg_output & ~(1u << off);
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ret = pca9539_write_reg(chip, PCA9539_OUTPUT, reg_val);
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ret = pca953x_write_reg(chip, PCA953X_OUTPUT, reg_val);
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if (ret)
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return;
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chip->reg_output = reg_val;
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}
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static int pca9539_init_gpio(struct pca9539_chip *chip)
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static int pca953x_init_gpio(struct pca953x_chip *chip)
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{
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struct gpio_chip *gc;
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gc = &chip->gpio_chip;
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gc->direction_input = pca9539_gpio_direction_input;
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gc->direction_output = pca9539_gpio_direction_output;
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gc->get = pca9539_gpio_get_value;
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gc->set = pca9539_gpio_set_value;
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gc->direction_input = pca953x_gpio_direction_input;
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gc->direction_output = pca953x_gpio_direction_output;
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gc->get = pca953x_gpio_get_value;
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gc->set = pca953x_gpio_set_value;
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gc->base = chip->gpio_start;
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gc->ngpio = NR_PCA9539_GPIOS;
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gc->label = "pca9539";
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gc->ngpio = NR_PCA953X_GPIOS;
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gc->label = "pca953x";
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return gpiochip_add(gc);
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}
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static int __devinit pca9539_probe(struct i2c_client *client)
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static int __devinit pca953x_probe(struct i2c_client *client)
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{
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struct pca9539_platform_data *pdata;
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struct pca9539_chip *chip;
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struct pca953x_platform_data *pdata;
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struct pca953x_chip *chip;
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int ret;
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pdata = client->dev.platform_data;
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if (pdata == NULL)
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return -ENODEV;
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chip = kzalloc(sizeof(struct pca9539_chip), GFP_KERNEL);
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chip = kzalloc(sizeof(struct pca953x_chip), GFP_KERNEL);
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if (chip == NULL)
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return -ENOMEM;
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@ -187,20 +187,20 @@ static int __devinit pca9539_probe(struct i2c_client *client)
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/* initialize cached registers from their original values.
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* we can't share this chip with another i2c master.
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*/
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ret = pca9539_read_reg(chip, PCA9539_OUTPUT, &chip->reg_output);
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ret = pca953x_read_reg(chip, PCA953X_OUTPUT, &chip->reg_output);
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if (ret)
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goto out_failed;
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ret = pca9539_read_reg(chip, PCA9539_DIRECTION, &chip->reg_direction);
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ret = pca953x_read_reg(chip, PCA953X_DIRECTION, &chip->reg_direction);
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if (ret)
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goto out_failed;
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/* set platform specific polarity inversion */
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ret = pca9539_write_reg(chip, PCA9539_INVERT, pdata->invert);
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ret = pca953x_write_reg(chip, PCA953X_INVERT, pdata->invert);
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if (ret)
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goto out_failed;
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ret = pca9539_init_gpio(chip);
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ret = pca953x_init_gpio(chip);
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if (ret)
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goto out_failed;
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@ -219,10 +219,10 @@ out_failed:
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return ret;
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}
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static int pca9539_remove(struct i2c_client *client)
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static int pca953x_remove(struct i2c_client *client)
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{
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struct pca9539_platform_data *pdata = client->dev.platform_data;
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struct pca9539_chip *chip = i2c_get_clientdata(client);
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struct pca953x_platform_data *pdata = client->dev.platform_data;
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struct pca953x_chip *chip = i2c_get_clientdata(client);
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int ret = 0;
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if (pdata->teardown) {
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@ -246,26 +246,26 @@ static int pca9539_remove(struct i2c_client *client)
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return 0;
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}
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static struct i2c_driver pca9539_driver = {
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static struct i2c_driver pca953x_driver = {
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.driver = {
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.name = "pca9539",
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.name = "pca953x",
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},
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.probe = pca9539_probe,
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.remove = pca9539_remove,
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.probe = pca953x_probe,
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.remove = pca953x_remove,
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};
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static int __init pca9539_init(void)
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static int __init pca953x_init(void)
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{
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return i2c_add_driver(&pca9539_driver);
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return i2c_add_driver(&pca953x_driver);
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}
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module_init(pca9539_init);
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module_init(pca953x_init);
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static void __exit pca9539_exit(void)
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static void __exit pca953x_exit(void)
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{
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i2c_del_driver(&pca9539_driver);
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i2c_del_driver(&pca953x_driver);
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}
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module_exit(pca9539_exit);
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module_exit(pca953x_exit);
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MODULE_AUTHOR("eric miao <eric.miao@marvell.com>");
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MODULE_DESCRIPTION("GPIO expander driver for PCA9539");
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MODULE_DESCRIPTION("GPIO expander driver for PCA953x");
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MODULE_LICENSE("GPL");
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@ -1,6 +1,6 @@
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/* platform data for the PCA9539 16-bit I/O expander driver */
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struct pca9539_platform_data {
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struct pca953x_platform_data {
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/* number of the first GPIO */
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unsigned gpio_base;
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