diff options
| author | Alexander Stein <alexander.stein@ew.tq-group.com> | 2022-01-05 08:14:07 +0100 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2022-11-02 14:20:20 +0100 |
| commit | 9add5e5e1f7dd1e79eb0f7f7e32f1ab4851a9808 (patch) | |
| tree | 807c964d49a6c15bb909897a0e2b0120ed473b33 /drivers | |
| parent | b4f7c3c44d8543d5c62b55fa2e23da8743471044 (diff) | |
usb: dwc3: drd: Add support for usb-conn-gpio based usb-role-switch
usb-conn-gpio devices are a subnode of the USB interface controller, which
needs to be populated.
This allows having a non-type-c connector providing dual-role.
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20220105071407.2240302-1-alexander.stein@ew.tq-group.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Upstream-status: Backport [a102f07e4edf0f1cf06bf9825ab10e26a29dd945]
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/dwc3/drd.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/drd.c b/drivers/usb/dwc3/drd.c index 6c82493f7df9..cb737c276583 100644 --- a/drivers/usb/dwc3/drd.c +++ b/drivers/usb/dwc3/drd.c @@ -9,6 +9,7 @@ #include <linux/extcon.h> #include <linux/of_graph.h> +#include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/property.h> @@ -568,6 +569,18 @@ static int dwc3_setup_role_switch(struct dwc3 *dwc) if (IS_ERR(dwc->role_sw)) return PTR_ERR(dwc->role_sw); + if (IS_ENABLED(CONFIG_OF)) { + /* populate connector entry */ + int ret = devm_of_platform_populate(dwc->dev); + + if (ret) { + usb_role_switch_unregister(dwc->role_sw); + dwc->role_sw = NULL; + dev_err(dwc->dev, "DWC3 platform devices creation failed: %i\n", ret); + return ret; + } + } + dwc3_set_mode(dwc, mode); return 0; } |