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gpio: pca953x: remove incorrect le16_to_cpu calls

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i2c_smbus commands handle the correct byte order for smbus transactions
internally. This will currently result in incorrect operation on big
endian systems.

Suggested-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Andy Shevchenko 2017-07-03 20:45:30 +03:00 committed by Linus Walleij
parent ef954844c7
commit b2dc4110cb
1 changed files with 3 additions and 5 deletions
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8
drivers/gpio/gpio-pca953x.c
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@ -187,10 +187,9 @@ static int pca953x_write_regs_8(struct pca953x_chip *chip, int reg, u8 *val)
static int pca953x_write_regs_16(struct pca953x_chip *chip, int reg, u8 *val) static int pca953x_write_regs_16(struct pca953x_chip *chip, int reg, u8 *val)
{ {
__le16 word = cpu_to_le16(get_unaligned((u16 *)val)); u16 word = get_unaligned((u16 *)val);
return i2c_smbus_write_word_data(chip->client, return i2c_smbus_write_word_data(chip->client, reg << 1, word);
reg << 1, (__force u16)word);
} }
static int pca957x_write_regs_16(struct pca953x_chip *chip, int reg, u8 *val) static int pca957x_write_regs_16(struct pca953x_chip *chip, int reg, u8 *val)
@ -241,8 +240,7 @@ static int pca953x_read_regs_16(struct pca953x_chip *chip, int reg, u8 *val)
int ret; int ret;
ret = i2c_smbus_read_word_data(chip->client, reg << 1); ret = i2c_smbus_read_word_data(chip->client, reg << 1);
val[0] = (u16)ret & 0xFF; put_unaligned(ret, (u16 *)val);
val[1] = (u16)ret >> 8;
return ret; return ret;
} }