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MLK-16715-7 usb: chipidea: imx: add "ci-disable-lpm" quirk

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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>
This commit is contained in:
Peter Chen 2019-09-30 10:49:12 +08:00 committed by Dong Aisheng
parent 1fbbc6bd15
commit 9a2bb23f01
2 changed files with 6 additions and 0 deletions
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1
Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
View File

@ -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

5
drivers/usb/chipidea/ci_hdrc_imx.c
View File

@ -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);