From a9400f1979a0820113a7216a69385cad3a9badde Mon Sep 17 00:00:00 2001 From: Frank Li Date: Fri, 6 Sep 2024 12:30:38 -0400 Subject: [PATCH] usb: dwc3: imx8mp: add 2 software managed quirk properties for host mode Add 2 software manage quirk properties (xhci-missing-cas-quirk and xhci-skip-phy-init-quirk) for xhci host. dwc3 driver have PHY management to cover both device and host mode, so add xhci-skip-phy-init-quirk to skip PHY management from HCD core. Cold Attach Status (CAS) bit can't be set at i.MX8MP after resume from suspend state. So set xhci-missing-cas-quirk. Signed-off-by: Frank Li Acked-by: Thinh Nguyen Link: https://lore.kernel.org/r/20240906-dwc-mp-v5-2-ea8ec6774e7b@nxp.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/dwc3-imx8mp.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-imx8mp.c b/drivers/usb/dwc3/dwc3-imx8mp.c index 8b88649b569feb..cfb59f6bf5dde7 100644 --- a/drivers/usb/dwc3/dwc3-imx8mp.c +++ b/drivers/usb/dwc3/dwc3-imx8mp.c @@ -145,6 +145,17 @@ static irqreturn_t dwc3_imx8mp_interrupt(int irq, void *_dwc3_imx) return IRQ_HANDLED; } +static int dwc3_imx8mp_set_software_node(struct device *dev) +{ + struct property_entry props[3] = { 0 }; + int prop_idx = 0; + + props[prop_idx++] = PROPERTY_ENTRY_BOOL("xhci-missing-cas-quirk"); + props[prop_idx++] = PROPERTY_ENTRY_BOOL("xhci-skip-phy-init-quirk"); + + return device_create_managed_software_node(dev, props, NULL); +} + static int dwc3_imx8mp_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; @@ -207,6 +218,13 @@ static int dwc3_imx8mp_probe(struct platform_device *pdev) if (err < 0) goto disable_rpm; + err = dwc3_imx8mp_set_software_node(dev); + if (err) { + err = -ENODEV; + dev_err(dev, "failed to create software node\n"); + goto disable_rpm; + } + err = of_platform_populate(node, NULL, NULL, dev); if (err) { dev_err(&pdev->dev, "failed to create dwc3 core\n");