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extcon: axp288: Remove the build-in connection description

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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>
This commit is contained in:
Heikki Krogerus 2019-10-08 15:26:00 +03:00 committed by Greg Kroah-Hartman
parent c6919d5e0c
commit a69dff9954
1 changed files with 23 additions and 15 deletions
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38
drivers/extcon/extcon-axp288.c
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@ -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);