[PATCH AUTOSEL 4.14 09/23] mfd: omap-usb-host: Fix dts probe of children

From: Sasha Levin
Date: Fri Oct 05 2018 - 12:16:47 EST


From: Tony Lindgren <tony@xxxxxxxxxxx>

[ Upstream commit 10492ee8ed9188d6d420e1f79b2b9bdbc0624e65 ]

It currently only works if the parent bus uses "simple-bus". We
currently try to probe children with non-existing compatible values.
And we're missing .probe.

I noticed this while testing devices configured to probe using ti-sysc
interconnect target module driver. For that we also may want to rebind
the driver, so let's remove __init and __exit.

Signed-off-by: Tony Lindgren <tony@xxxxxxxxxxx>
Acked-by: Roger Quadros <rogerq@xxxxxx>
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
---
drivers/mfd/omap-usb-host.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index 7aab376ecb84..3785c638d530 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -548,8 +548,8 @@ static int usbhs_omap_get_dt_pdata(struct device *dev,
}

static const struct of_device_id usbhs_child_match_table[] = {
- { .compatible = "ti,omap-ehci", },
- { .compatible = "ti,omap-ohci", },
+ { .compatible = "ti,ehci-omap", },
+ { .compatible = "ti,ohci-omap3", },
{ }
};

@@ -875,6 +875,7 @@ static struct platform_driver usbhs_omap_driver = {
.pm = &usbhsomap_dev_pm_ops,
.of_match_table = usbhs_omap_dt_ids,
},
+ .probe = usbhs_omap_probe,
.remove = usbhs_omap_remove,
};

@@ -884,9 +885,9 @@ MODULE_ALIAS("platform:" USBHS_DRIVER_NAME);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("usb host common core driver for omap EHCI and OHCI");

-static int __init omap_usbhs_drvinit(void)
+static int omap_usbhs_drvinit(void)
{
- return platform_driver_probe(&usbhs_omap_driver, usbhs_omap_probe);
+ return platform_driver_register(&usbhs_omap_driver);
}

/*
@@ -898,7 +899,7 @@ static int __init omap_usbhs_drvinit(void)
*/
fs_initcall_sync(omap_usbhs_drvinit);

-static void __exit omap_usbhs_drvexit(void)
+static void omap_usbhs_drvexit(void)
{
platform_driver_unregister(&usbhs_omap_driver);
}
--
2.17.1