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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>
pull/10/head
Peter Chen 2017-12-11 11:29:07 +08:00 committed by Jason Liu
parent 9f88055220
commit a894fedcf7
2 changed files with 6 additions and 0 deletions
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1
Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt
View File

@ -78,6 +78,7 @@ Optional properties:
needs to make sure it does not send more than 90%
maximum_periodic_data_per_frame. The use case is multiple transactions, but
less frame rate.
- 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

@ -533,6 +533,11 @@ 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;
}
if (of_usb_get_phy_mode(dev->of_node) == USBPHY_INTERFACE_MODE_HSIC) {
pdata.flags |= CI_HDRC_IMX_IS_HSIC;
data->usbmisc_data->hsic = 1;