sysreset: syscon: remove POWER reset cause

The sysreset of 'POWER' type is a PMIC reset defined as
'remove and restore power'.
So normally only COLD/WARN is supported by sysreset_syscon.

This modification allows to use the function sysreset_walk(SYSRESET_POWER)
when it is supported by PMIC driver (see example in stpmic1).

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>

diff --git a/drivers/sysreset/sysreset_syscon.c b/drivers/sysreset/sysreset_syscon.c
index 3fb39b9952e313c721340fd81eb4f639bad427a7..1028160247ac4171ca6f881702d48a1985798fa8 100644 (file)
--- a/drivers/sysreset/sysreset_syscon.c
+++ b/drivers/sysreset/sysreset_syscon.c
@@ -24,6 +24,9 @@ static int syscon_reboot_request(struct udevice *dev, enum sysreset_t type)
 {
        struct syscon_reboot_priv *priv = dev_get_priv(dev);
 
+       if (type == SYSRESET_POWER)
+               return -EPROTONOSUPPORT;
+
        regmap_write(priv->regmap, priv->offset, priv->mask);
 
        return -EINPROGRESS;