usb: host: xhci-plat: Set XHCI max interrupters if property is present

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.

Tested-by: Puma Hsu <pumahsu@google.com>
Tested-by: Daehwan Jung <dh10.jung@samsung.com>
Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20250409194804.3773260-5-quic_wcheng@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 3155e3a842da9a979f29e5cad18a3b18d70cfdab..6dab142e72789be74d9f54226687122367e3517b 100644 (file)
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -267,6 +267,8 @@ 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);
        }
 
        /*