pinctrl: stmfx: update the result type of dm_i2c_reg_read

Use int as result of dm_i2c_reg_read to avoid warning with
W=1 (warning: comparison is always false due to limited range
of data type [-Wtype-limits])

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>

diff --git a/drivers/pinctrl/pinctrl-stmfx.c b/drivers/pinctrl/pinctrl-stmfx.c
index c8e61e2..b0e43ae 100644 (file)
--- a/drivers/pinctrl/pinctrl-stmfx.c
+++ b/drivers/pinctrl/pinctrl-stmfx.c
@@ -352,11 +352,12 @@ static int stmfx_chip_init(struct udevice *dev)
        int ret;
        struct dm_i2c_chip *chip = dev_get_parent_platdata(dev);
 
-       id = dm_i2c_reg_read(dev, STMFX_REG_CHIP_ID);
-       if (id < 0) {
-               dev_err(dev, "error reading chip id: %d\n", id);
+       ret = dm_i2c_reg_read(dev, STMFX_REG_CHIP_ID);
+       if (ret < 0) {
+               dev_err(dev, "error reading chip id: %d\n", ret);
                return ret;
        }
+       id = (u8)ret;
        /*
         * Check that ID is the complement of the I2C address:
         * STMFX I2C address follows the 7-bit format (MSB), that's why