arm: mvebu: AXP: Add possiblity to configure PEX detection pulse width

[u-boot] / drivers / power / power_core.c

diff --git a/drivers/power/power_core.c b/drivers/power/power_core.c
index 29ccc831af2d80c3bcc4cadb5f80b95170088015..b72286d42961264bb12171e30bc6593eb446b466 100644 (file)
--- a/drivers/power/power_core.c
+++ b/drivers/power/power_core.c
@@ -23,7 +23,7 @@ int check_reg(struct pmic *p, u32 reg)
        if (reg >= p->number_of_regs) {
                printf("<reg num> = %d is invalid. Should be less than %d\n",
                       reg, p->number_of_regs);
-               return -1;
+               return -EINVAL;
        }
 
        return 0;
@@ -34,7 +34,7 @@ int pmic_set_output(struct pmic *p, u32 reg, int out, int on)
        u32 val;
 
        if (pmic_reg_read(p, reg, &val))
-               return -1;
+               return -ENOTSUPP;
 
        if (on)
                val |= out;
@@ -42,7 +42,7 @@ int pmic_set_output(struct pmic *p, u32 reg, int out, int on)
                val &= ~out;
 
        if (pmic_reg_write(p, reg, val))
-               return -1;
+               return -ENOTSUPP;
 
        return 0;
 }
@@ -59,7 +59,7 @@ static int pmic_dump(struct pmic *p)
 
        if (!p) {
                puts("Wrong PMIC name!\n");
-               return -1;
+               return -ENODEV;
        }
 
        pmic_show_info(p);
@@ -140,6 +140,9 @@ int do_pmic(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
                return CMD_RET_SUCCESS;
        }
 
+       if (argc < 3)
+               return CMD_RET_USAGE;
+
        name = argv[1];
        cmd = argv[2];