adc: stm32: Fix warnings when compiling with W=1

This patch solves the following warnings:

drivers/adc/stm32-adc-core.c: In function 'stm32h7_adc_clk_sel':
warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (i = 0; i < ARRAY_SIZE(stm32h7_adc_ckmodes_spec); i++) {
                 ^
warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (i = 0; i < ARRAY_SIZE(stm32h7_adc_ckmodes_spec); i++) {
                ^
Signed-off-by: Patrice Chotard <patrice.chotard@st.com>

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Acked-by: Fabrice Gasnier <fabrice.gasnier@st.com>
This commit is contained in:
Patrick Delaunay 2019-06-21 15:26:45 +02:00
parent 0fb0365673
commit c0d7f1fbad

View file

@ -60,7 +60,8 @@ static int stm32h7_adc_clk_sel(struct udevice *dev,
{
u32 ckmode, presc;
unsigned long rate;
int i, div;
unsigned int i;
int div;
/* stm32h7 bus clock is common for all ADC instances (mandatory) */
if (!clk_valid(&common->bclk)) {