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authorHeikki Krogerus <heikki.krogerus@linux.intel.com>2019-10-08 15:26:00 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-11-04 17:05:26 +0300
commita69dff995477a57badacfea56438b40e22247cd5 (patch)
treeb8c51e0336f660c4d114658e578acd2c220b9b41 /drivers/extcon/extcon-axp288.c
parentc6919d5e0cd168a732034d8dc19fdc3dff683a2b (diff)
downloadlinux-a69dff995477a57badacfea56438b40e22247cd5.tar.xz
extcon: axp288: Remove the build-in connection description
Getting handle to the USB role switch by first finding its software fwnode. Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Tested-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20191008122600.22340-3-heikki.krogerus@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/extcon/extcon-axp288.c')
-rw-r--r--drivers/extcon/extcon-axp288.c38
1 files changed, 23 insertions, 15 deletions
diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
index 415afaf479e7..a7f216191493 100644
--- a/drivers/extcon/extcon-axp288.c
+++ b/drivers/extcon/extcon-axp288.c
@@ -322,6 +322,25 @@ static void axp288_put_role_sw(void *data)
usb_role_switch_put(info->role_sw);
}
+static int axp288_extcon_find_role_sw(struct axp288_extcon_info *info)
+{
+ const struct software_node *swnode;
+ struct fwnode_handle *fwnode;
+
+ if (!x86_match_cpu(cherry_trail_cpu_ids))
+ return 0;
+
+ swnode = software_node_find_by_name(NULL, "intel-xhci-usb-sw");
+ if (!swnode)
+ return -EPROBE_DEFER;
+
+ fwnode = software_node_fwnode(swnode);
+ info->role_sw = usb_role_switch_find_by_fwnode(fwnode);
+ fwnode_handle_put(fwnode);
+
+ return info->role_sw ? 0 : -EPROBE_DEFER;
+}
+
static int axp288_extcon_probe(struct platform_device *pdev)
{
struct axp288_extcon_info *info;
@@ -343,9 +362,10 @@ static int axp288_extcon_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, info);
- info->role_sw = usb_role_switch_get(dev);
- if (IS_ERR(info->role_sw))
- return PTR_ERR(info->role_sw);
+ ret = axp288_extcon_find_role_sw(info);
+ if (ret)
+ return ret;
+
if (info->role_sw) {
ret = devm_add_action_or_reset(dev, axp288_put_role_sw, info);
if (ret)
@@ -440,26 +460,14 @@ static struct platform_driver axp288_extcon_driver = {
},
};
-static struct device_connection axp288_extcon_role_sw_conn = {
- .endpoint[0] = "axp288_extcon",
- .endpoint[1] = "intel_xhci_usb_sw-role-switch",
- .id = "usb-role-switch",
-};
-
static int __init axp288_extcon_init(void)
{
- if (x86_match_cpu(cherry_trail_cpu_ids))
- device_connection_add(&axp288_extcon_role_sw_conn);
-
return platform_driver_register(&axp288_extcon_driver);
}
module_init(axp288_extcon_init);
static void __exit axp288_extcon_exit(void)
{
- if (x86_match_cpu(cherry_trail_cpu_ids))
- device_connection_remove(&axp288_extcon_role_sw_conn);
-
platform_driver_unregister(&axp288_extcon_driver);
}
module_exit(axp288_extcon_exit);