diff options
| author | Peter Chen <peter.chen@nxp.com> | 2017-12-11 11:29:07 +0800 |
|---|---|---|
| committer | Leonard Crestez <leonard.crestez@nxp.com> | 2018-08-24 12:41:33 +0300 |
| commit | db065184b460c26c7499f53a12b4eba1eb0e7de6 (patch) | |
| tree | 6c5a9823f1c4503940ae019d32ff496e78ee39cf | |
| parent | c27a7698a1c9d6d7c2e208d1f06bf5cb6da7673c (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 25f73407ca93..1fc8a564efaa 100644 --- a/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt +++ b/Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt @@ -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 diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c index 74408d282a6f..7f68b5e4b014 100644 --- a/drivers/usb/chipidea/ci_hdrc_imx.c +++ b/drivers/usb/chipidea/ci_hdrc_imx.c @@ -529,6 +529,11 @@ 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; |