diff options
| author |   Bartosz Golaszewski <bgolaszewski@baylibre.com> | 2016-09-09 11:17:38 +0200 |
|---|---|---|
| committer |   Linus Walleij <linus.walleij@linaro.org> | 2016-09-12 14:49:42 +0200 |
| commit | ea3d579d8f0cc5f16105c2741e2d409563beb948 (patch) | |
| tree | 38ff83c8316ddf6db75326cafeced2532a542bd9 /drivers/gpio/gpio-pca953x.c | |
| parent | gpio: pca953x: remove an unused variable (diff) | |
| download | linux-dev-ea3d579d8f0cc5f16105c2741e2d409563beb948.tar.xz linux-dev-ea3d579d8f0cc5f16105c2741e2d409563beb948.zip | |
gpio: pca953x: coding style fixes
pca953x_gpio_set_multiple() has some coding style issues that make it
harder to read. Tweak the code a bit.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-pca953x.c')
| -rw-r--r-- | drivers/gpio/gpio-pca953x.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c index e36a9bf08fb1..5d059866d17a 100644 --- a/drivers/gpio/gpio-pca953x.c +++ b/drivers/gpio/gpio-pca953x.c @@ -362,25 +362,28 @@ exit: } static void pca953x_gpio_set_multiple(struct gpio_chip *gc, - unsigned long *mask, unsigned long *bits) + unsigned long *mask, unsigned long *bits) { struct pca953x_chip *chip = gpiochip_get_data(gc); + unsigned int bank_mask, bank_val; + int bank_shift, bank; u8 reg_val[MAX_BANK]; int ret; - int bank_shift = fls((chip->gpio_chip.ngpio - 1) / BANK_SZ); - int bank; + + bank_shift = fls((chip->gpio_chip.ngpio - 1) / BANK_SZ); memcpy(reg_val, chip->reg_output, NBANK(chip)); mutex_lock(&chip->i2c_lock); - for(bank=0; bank<NBANK(chip); bank++) { - unsigned bankmask = mask[bank / sizeof(*mask)] >> - ((bank % sizeof(*mask)) * 8); - if(bankmask) { - unsigned bankval = bits[bank / sizeof(*bits)] >> - ((bank % sizeof(*bits)) * 8); - reg_val[bank] = (reg_val[bank] & ~bankmask) | bankval; + for (bank = 0; bank < NBANK(chip); bank++) { + bank_mask = mask[bank / sizeof(*mask)] >> + ((bank % sizeof(*mask)) * 8); + if (bank_mask) { + bank_val = bits[bank / sizeof(*bits)] >> + ((bank % sizeof(*bits)) * 8); + reg_val[bank] = (reg_val[bank] & ~bank_mask) | bank_val; } } + ret = i2c_smbus_write_i2c_block_data(chip->client, chip->regs->output << bank_shift, NBANK(chip), reg_val); |