int pmic_reg_write(struct pmic *p, u32 reg, u32 val)
{
if (check_reg(p, reg))
- return -1;
+ return -EINVAL;
hi6553_writeb(reg, (uint8_t)val);
int pmic_reg_read(struct pmic *p, u32 reg, u32 *val)
{
if (check_reg(p, reg))
- return -1;
+ return -EINVAL;
*val = (u32)hi6553_readb(reg);