@@ -144,10 +144,9 @@ static int mcp_write(struct mcp23s08 *mcp, unsigned int reg, unsigned int val)
return regmap_write(mcp->regmap, reg << mcp->reg_shift, val);
}
-static int mcp_set_mask(struct mcp23s08 *mcp, unsigned int reg,
- unsigned int mask, bool enabled)
+static int mcp_update_bits(struct mcp23s08 *mcp, unsigned int reg,
+ unsigned int mask, unsigned int val)
{
- u16 val = enabled ? 0xffff : 0x0000;
return regmap_update_bits(mcp->regmap, reg << mcp->reg_shift,
mask, val);
}
@@ -156,7 +155,7 @@ static int mcp_set_bit(struct mcp23s08 *mcp, unsigned int reg,
unsigned int pin, bool enabled)
{
u16 mask = BIT(pin);
- return mcp_set_mask(mcp, reg, mask, enabled);
+ return mcp_update_bits(mcp, reg, mask, enabled ? mask : 0);
}
static const struct pinctrl_pin_desc mcp23x08_pins[] = {
@@ -310,7 +309,7 @@ static int mcp23s08_get(struct gpio_chip *chip, unsigned offset)
static int __mcp23s08_set(struct mcp23s08 *mcp, unsigned mask, bool value)
{
- return mcp_set_mask(mcp, MCP_OLAT, mask, value);
+ return mcp_update_bits(mcp, MCP_OLAT, mask, value ? mask : 0);
}
static void mcp23s08_set(struct gpio_chip *chip, unsigned offset, int value)
@@ -333,7 +332,7 @@ mcp23s08_direction_output(struct gpio_chip *chip, unsigned offset, int value)
mutex_lock(&mcp->lock);
status = __mcp23s08_set(mcp, mask, value);
if (status == 0) {
- status = mcp_set_mask(mcp, MCP_IODIR, mask, false);
+ status = mcp_update_bits(mcp, MCP_IODIR, mask, 0);
}
mutex_unlock(&mcp->lock);
return status;
The semantic of mcp_set_mask() was surprising to me when I first read that driver. So it was unexpected that in the call mcp_set_mask(mcp, MCP_OLAT, mask, value); value was a bool. Make the function a thinner wrapper around regmap_update_bits() and rename it to also have a similar name. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/pinctrl/pinctrl-mcp23s08.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) base-commit: fe15c26ee26efa11741a7b632e9f23b01aca4cc6