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drivers: regulator: improve regulator_get_voltage

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- Function now returns error, value is obtained by reference. This
  allows to propagate potential bus errors.

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This commit is contained in:
Gerard Marull-Paretas 2022-12-01 13:23:32 +01:00 • committed by Carles Cufí
commit 3d47b6dfba
3 changed files with 15 additions and 12 deletions
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5
drivers/regulator/regulator_shell.c
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@ -56,6 +56,7 @@ static int cmd_reg_dis(const struct shell *sh, size_t argc, char **argv)
static int cmd_set_vol(const struct shell *sh, size_t argc, char **argv)
{
int lvol, uvol, ret;
int32_t volt_uv;
const struct device *reg_dev;
reg_dev = device_get_binding(argv[1]);
@ -72,12 +73,12 @@ static int cmd_set_vol(const struct shell *sh, size_t argc, char **argv)
shell_error(sh, "failed to set voltage, error %d", ret);
return ret;
}
ret = regulator_get_voltage(reg_dev);
ret = regulator_get_voltage(reg_dev, &volt_uv);
if (ret < 0) {
shell_error(sh, "failed to read voltage, error %d", ret);
return ret;
}
shell_print(sh, "set voltage to %d uV", ret);
shell_print(sh, "set voltage to %d uV", volt_uv);
return 0;
}