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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>
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1 changed files with 13 additions and 10 deletions
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@ -362,25 +362,28 @@ static void pca953x_gpio_set_value(struct gpio_chip *gc, unsigned off, int val)
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}
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static void pca953x_gpio_set_multiple(struct gpio_chip *gc,
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unsigned long *mask, unsigned long *bits)
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unsigned long *mask, unsigned long *bits)
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{
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struct pca953x_chip *chip = gpiochip_get_data(gc);
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unsigned int bank_mask, bank_val;
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int bank_shift, bank;
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u8 reg_val[MAX_BANK];
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int ret;
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int bank_shift = fls((chip->gpio_chip.ngpio - 1) / BANK_SZ);
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int bank;
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bank_shift = fls((chip->gpio_chip.ngpio - 1) / BANK_SZ);
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memcpy(reg_val, chip->reg_output, NBANK(chip));
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mutex_lock(&chip->i2c_lock);
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for(bank=0; bank<NBANK(chip); bank++) {
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unsigned bankmask = mask[bank / sizeof(*mask)] >>
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((bank % sizeof(*mask)) * 8);
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if(bankmask) {
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unsigned bankval = bits[bank / sizeof(*bits)] >>
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((bank % sizeof(*bits)) * 8);
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reg_val[bank] = (reg_val[bank] & ~bankmask) | bankval;
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for (bank = 0; bank < NBANK(chip); bank++) {
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bank_mask = mask[bank / sizeof(*mask)] >>
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((bank % sizeof(*mask)) * 8);
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if (bank_mask) {
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bank_val = bits[bank / sizeof(*bits)] >>
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((bank % sizeof(*bits)) * 8);
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reg_val[bank] = (reg_val[bank] & ~bank_mask) | bank_val;
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}
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}
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ret = i2c_smbus_write_i2c_block_data(chip->client,
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chip->regs->output << bank_shift,
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NBANK(chip), reg_val);
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