Commit 77906a54 authored by Daniel Silverstone's avatar Daniel Silverstone Committed by Linus Torvalds
Browse files

pca953x: support GPIOLIB GPIO naming 



Add support to the PCA953x driver to use the GPIOLIB naming facility for
GPIOs.

Signed-off-by: default avatarDaniel Silverstone <dsilvers@simtec.co.uk>
Cc: Ben Gardner <bgardner@wabtec.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 7bfa58dd

drivers/gpio/pca953x.c

+4 −0
Original line number Diff line number Diff line
@@ -50,6 +50,7 @@ struct pca953x_chip { 


	struct i2c_client *client;

	struct gpio_chip gpio_chip;

	char **names;

};



static int pca953x_write_reg(struct pca953x_chip *chip, int reg, uint16_t val)
@@ -192,6 +193,7 @@ static void pca953x_setup_gpio(struct pca953x_chip *chip, int gpios) 
	gc->label = chip->client->name;

	gc->dev = &chip->client->dev;

	gc->owner = THIS_MODULE;

	gc->names = chip->names;

}



static int __devinit pca953x_probe(struct i2c_client *client,
@@ -215,6 +217,8 @@ static int __devinit pca953x_probe(struct i2c_client *client, 


	chip->gpio_start = pdata->gpio_base;



	chip->names = pdata->names;



	/* initialize cached registers from their original values.

	 * we can't share this chip with another i2c master.

	 */

include/linux/i2c/pca953x.h

+1 −0
Original line number Diff line number Diff line
@@ -15,4 +15,5 @@ struct pca953x_platform_data { 
	int		(*teardown)(struct i2c_client *client,

				unsigned gpio, unsigned ngpio,

				void *context);

	char		**names;

};

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