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gpio: pca953x: Use ARRAY_SIZE instead of reinventing it

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Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Axel Lin
2013-06-22 18:22:48 +08:00
committed by Tom Rini
parent 2db1c3fc67
commit f218761743
1 changed files with 1 additions and 4 deletions
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5
drivers/gpio/pca953x.c
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@@ -47,9 +47,6 @@ struct pca953x_chip_ngpio {
static struct pca953x_chip_ngpio pca953x_chip_ngpios[] = static struct pca953x_chip_ngpio pca953x_chip_ngpios[] =
CONFIG_SYS_I2C_PCA953X_WIDTH; CONFIG_SYS_I2C_PCA953X_WIDTH;
#define NUM_CHIP_GPIOS (sizeof(pca953x_chip_ngpios) / \
sizeof(struct pca953x_chip_ngpio))
/* /*
* Determine the number of GPIO pins supported. If we don't know we assume * Determine the number of GPIO pins supported. If we don't know we assume
* 8 pins. * 8 pins.
@@ -58,7 +55,7 @@ static int pca953x_ngpio(uint8_t chip)
{ {
int i; int i;
for (i = 0; i < NUM_CHIP_GPIOS; i++) for (i = 0; i < ARRAY_SIZE(pca953x_chip_ngpios); i++)
if (pca953x_chip_ngpios[i].chip == chip) if (pca953x_chip_ngpios[i].chip == chip)
return pca953x_chip_ngpios[i].ngpio; return pca953x_chip_ngpios[i].ngpio;