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sysreset: syscon: update regmap access to syscon

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Use new API syscon_node_to_regmap in sysreset_syscon driver
for compatible "syscon-reboot"; that's avoid the need of explicit
syscon binding for "regmap" handle.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit is contained in:
Patrick Delaunay 2018-07-09 14:59:29 +02:00 committed by Tom Rini
parent af95a3e7c0
commit 1f6ca3f42f
1 changed files with 9 additions and 7 deletions
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16
drivers/sysreset/sysreset_syscon.c
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@ -35,18 +35,20 @@ static struct sysreset_ops syscon_reboot_ops = {
int syscon_reboot_probe(struct udevice *dev)
{
struct udevice *syscon;
struct syscon_reboot_priv *priv = dev_get_priv(dev);
int err;
u32 phandle;
ofnode node;
err = uclass_get_device_by_phandle(UCLASS_SYSCON, dev,
"regmap", &syscon);
if (err) {
pr_err("unable to find syscon device\n");
err = ofnode_read_u32(dev_ofnode(dev), "regmap", &phandle);
if (err)
return err;
}
priv->regmap = syscon_get_regmap(syscon);
node = ofnode_get_by_phandle(phandle);
if (!ofnode_valid(node))
return -EINVAL;
priv->regmap = syscon_node_to_regmap(node);
if (!priv->regmap) {
pr_err("unable to find regmap\n");
return -ENODEV;