diff options
| author | Peter Chen <peter.chen@nxp.com> | 2019-09-30 10:49:12 +0800 |
|---|---|---|
| committer | Dong Aisheng <aisheng.dong@nxp.com> | 2019-11-25 15:56:52 +0800 |
| commit | 9a2bb23f01a1f6450e5453ed1ef592880584a94a (patch) | |
| tree | af040f07ef4bedd5348fa6fd4f1c08ca7c847bdc | |
| parent | 1fbbc6bd1574da5412d39f26d26a54cd182dbce6 (diff) | |
MLK-16715-7 usb: chipidea: imx: add "ci-disable-lpm" quirk
Some chipidea hardware needs to disable low power mode for controller
due to IC issue or hardware issue, add one quirk for it.
Acked-by: Jun Li <jun.li@nxp.com>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
| -rw-r--r-- | Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt | 1 | ||||
| -rw-r--r-- | drivers/usb/chipidea/ci_hdrc_imx.c | 5 |
2 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt index cfc9f40ab641..c2d72c8fe6a0 100644 --- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt @@ -86,6 +86,7 @@ Optional properties: case, the "idle" state needs to pull down the data and strobe pin and the "active" state needs to pull up the strobe pin. - pinctrl-n: alternate pin modes +- ci-disable-lpm: Some chipidea hardware need to disable low power mode i.mx specific properties - fsl,usbmisc: phandler of non-core register device, with one diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index bd623eb2a91c..cd56d73616b1 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -418,6 +418,11 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev) if (pdata.flags & CI_HDRC_SUPPORTS_RUNTIME_PM) data->supports_runtime_pm = true; + if (of_find_property(np, "ci-disable-lpm", NULL)) { + data->supports_runtime_pm = false; + pdata.flags &= ~CI_HDRC_SUPPORTS_RUNTIME_PM; + } + ret = imx_usbmisc_init(data->usbmisc_data); if (ret) { dev_err(dev, "usbmisc init failed, ret=%d\n", ret); |