From 6a7b36aa4b0afbe7a9798feac16de47ad856f358 Mon Sep 17 00:00:00 2001 From: Chandrabhanu Mahapatra Date: Tue, 10 Jul 2012 19:05:37 +0530 Subject: [PATCH] GPIO: PCA953X: Increase size of invert variable to support 24 bit TCA6424 is a low voltage 24 bit I2C and SMBus I/O expander of pca953x family similar to its 16 bit predecessor TCA6416. It comes with three 8-bit active Input, Output, Polarity Inversion and Configuration registers each. The polarity of Input ports can be reversed by setting the appropiate bit in Polarity Inversion registers. The variables corresponding to Input, Output and Configuration registers have already been updated to support 24 bit values. This patch thus updates the invert variable of PCA953X platform data to support 24 bit. Signed-off-by: Chandrabhanu Mahapatra Signed-off-by: Linus Walleij --- drivers/gpio/gpio-pca953x.c | 11 ++++++----- include/linux/i2c/pca953x.h | 2 +- 2 files changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index de24af202447..266b910de43b 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -568,7 +568,7 @@ static void pca953x_irq_teardown(struct pca953x_chip *chip) * WARNING: This is DEPRECATED and will be removed eventually! */ static void -pca953x_get_alt_pdata(struct i2c_client *client, int *gpio_base, int *invert) +pca953x_get_alt_pdata(struct i2c_client *client, int *gpio_base, u32 *invert) { struct device_node *node; const __be32 *val; @@ -596,13 +596,13 @@ pca953x_get_alt_pdata(struct i2c_client *client, int *gpio_base, int *invert) } #else static void -pca953x_get_alt_pdata(struct i2c_client *client, int *gpio_base, int *invert) +pca953x_get_alt_pdata(struct i2c_client *client, int *gpio_base, u32 *invert) { *gpio_base = -1; } #endif -static int __devinit device_pca953x_init(struct pca953x_chip *chip, int invert) +static int __devinit device_pca953x_init(struct pca953x_chip *chip, u32 invert) { int ret; @@ -621,7 +621,7 @@ static int __devinit device_pca953x_init(struct pca953x_chip *chip, int invert) return ret; } -static int __devinit device_pca957x_init(struct pca953x_chip *chip, int invert) +static int __devinit device_pca957x_init(struct pca953x_chip *chip, u32 invert) { int ret; u32 val = 0; @@ -657,8 +657,9 @@ static int __devinit pca953x_probe(struct i2c_client *client, { struct pca953x_platform_data *pdata; struct pca953x_chip *chip; - int irq_base=0, invert=0; + int irq_base = 0; int ret; + u32 invert = 0; chip = kzalloc(sizeof(struct pca953x_chip), GFP_KERNEL); if (chip == NULL) diff --git a/include/linux/i2c/pca953x.h b/include/linux/i2c/pca953x.h index 139ba52667c8..3c98dd4f901f 100644 --- a/include/linux/i2c/pca953x.h +++ b/include/linux/i2c/pca953x.h @@ -11,7 +11,7 @@ struct pca953x_platform_data { unsigned gpio_base; /* initial polarity inversion setting */ - uint16_t invert; + u32 invert; /* interrupt base */ int irq_base; -- GitLab