[PATCH v5 16/32] usb: host: xhci-plat: Set XHCI max interrupters if property is present

From: Wesley Cheng
Date: Tue Aug 29 2023 - 17:08:51 EST


Some platforms may want to limit the number of XHCI interrupters allocated.
This is passed to xhci-plat as a device property. Ensure that this is read
and the max_interrupters field is set.

Signed-off-by: Wesley Cheng <quic_wcheng@xxxxxxxxxxx>
---
drivers/usb/host/xhci-plat.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 28218c8f1837..d01318f89278 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -251,6 +251,8 @@ int xhci_plat_probe(struct platform_device *pdev, struct device *sysdev, const s

device_property_read_u32(tmpdev, "imod-interval-ns",
&xhci->imod_interval);
+ device_property_read_u16(tmpdev, "num-hc-interrupters",
+ &xhci->max_interrupters);
}

hcd->usb_phy = devm_usb_get_phy_by_phandle(sysdev, "usb-phy", 0);