[PATCH 3/4] pinctrl: stmfx: update the result type of dm_i2c_reg_read

[Patrice CHOTARD]

On 1/28/20 10:44 AM, Patrick Delaunay wrote:
> 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 at st.com>
> ---
>
>  drivers/pinctrl/pinctrl-stmfx.c | 7 ++++---
>  1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/pinctrl/pinctrl-stmfx.c b/drivers/pinctrl/pinctrl-stmfx.c
> index 0b5a0433cd..0def27166e 100644
> --- a/drivers/pinctrl/pinctrl-stmfx.c
> +++ b/drivers/pinctrl/pinctrl-stmfx.c
> @@ -351,11 +351,12 @@ 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

Reviewed-by: Patrice Chotard <patrice.chotard at st.com>

Thanks