usb: host: ohci-platform: add TPL support

The Target Peripheral List (TPL) is used to identify targeted devices
during Embedded Host compliance testing. The user can add "tpl-support"
in the device tree to enable it.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Amelie Delaunay <amelie.delaunay@foss.st.com>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
Link: https://lore.kernel.org/r/20220621152350.145745-2-fabrice.gasnier@foss.st.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index 47dfbfe..0adae62 100644 (file)
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -28,6 +28,7 @@
 #include <linux/usb/ohci_pdriver.h>
 #include <linux/usb.h>
 #include <linux/usb/hcd.h>
+#include <linux/usb/of.h>
 
 #include "ohci.h"
 
@@ -210,6 +211,8 @@ static int ohci_platform_probe(struct platform_device *dev)
        hcd->rsrc_start = res_mem->start;
        hcd->rsrc_len = resource_size(res_mem);
 
+       hcd->tpl_support = of_usb_host_tpl_support(dev->dev.of_node);
+
        err = usb_add_hcd(hcd, irq, IRQF_SHARED);
        if (err)
                goto err_power;