At this point, these two functions only differ in whether they do or do not
set the address increment bit on PCA9575. Merge these two functions together
to simplify the code a bit.
Signed-off-by: Marek Vasut <marek.vasut+renesas@xxxxxxxxx>
Cc: Linus Walleij <linus.walleij@xxxxxxxxxx>
Cc: Bartosz Golaszewski <bgolaszewski@xxxxxxxxxxxx>
---
V2: No change
V3: No change
---
drivers/gpio/gpio-pca953x.c | 16 +++++-----------
1 file changed, 5 insertions(+), 11 deletions(-)
diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index 8f6478f4545f..7288a589a6b7 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -208,14 +208,11 @@ 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)
{
- u16 word = get_unaligned((u16 *)val);
+ u32 regaddr = (reg << 1);
- return i2c_smbus_write_word_data(chip->client, reg << 1, word);
-}
-
-static int pca957x_write_regs_16(struct pca953x_chip *chip, int reg, u8 *val)
-{
- u32 regaddr = (reg << 1) | REG_ADDR_AI;
+ /* PCA9575 needs address-increment on multi-byte writes */
+ if (PCA_CHIP_TYPE(chip->driver_data) == PCA957X_TYPE)
+ regaddr |= REG_ADDR_AI;
return i2c_smbus_write_i2c_block_data(chip->client, regaddr,
NBANK(chip), val);
@@ -892,10 +889,7 @@ static int pca953x_probe(struct i2c_client *client,
chip->write_regs = pca953x_write_regs_24;
chip->read_regs = pca953x_read_regs_24;
} else {
- if (PCA_CHIP_TYPE(chip->driver_data) == PCA953X_TYPE)
- chip->write_regs = pca953x_write_regs_16;
- else
- chip->write_regs = pca957x_write_regs_16;
+ chip->write_regs = pca953x_write_regs_16;
chip->read_regs = pca953x_read_regs_16;
}
--
2.18.0
