The Toradex Colibri iMX6ULL board has a special USB hardware design. With runtime-pm enabled USB reset itself continuously. Furthermore the OTG port is also not enumerating devices if the Chipidea IP is in runtime sleep mode and a device or host gets plugged in. This patch adds the opportunity to disable Runtime Power Management from devicetree Signed-off-by: Philippe Schenker <philippe.schenker@xxxxxxxxxxx> --- Changes in v2: - Change commit message to tell the use case for Colibri iMX6ULL drivers/usb/chipidea/ci_hdrc_imx.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index 5ae16368a0c7..5078d0695eb7 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -434,6 +434,9 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) usb_phy_init(pdata.usb_phy); } + if (of_property_read_bool(np, "disable-runtime-pm")) + pdata.flags &= ~CI_HDRC_SUPPORTS_RUNTIME_PM; + if (pdata.flags & CI_HDRC_SUPPORTS_RUNTIME_PM) data->supports_runtime_pm = true; -- 2.27.0
