linux-kernel - [PATCH v2 2/4] usb: host: ehci-platform: add TPL support

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Message-ID: <20220621152350.145745-3-fabrice.gasnier@foss.st.com>
Date:   Tue, 21 Jun 2022 17:23:48 +0200
From:   Fabrice Gasnier <fabrice.gasnier@...s.st.com>
To:     <hminas@...opsys.com>, <gregkh@...uxfoundation.org>,
        <robh+dt@...nel.org>
CC:     <stern@...land.harvard.edu>, <krzysztof.kozlowski+dt@...aro.org>,
        <devicetree@...r.kernel.org>, <linux-usb@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <amelie.delaunay@...s.st.com>, <fabrice.gasnier@...s.st.com>
Subject: [PATCH v2 2/4] usb: host: ehci-platform: add TPL support

From: Amelie Delaunay <amelie.delaunay@...s.st.com>

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@...land.harvard.edu>
Signed-off-by: Amelie Delaunay <amelie.delaunay@...s.st.com>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...s.st.com>
---
Changes in v2:
- update commit message to clarify TPL and EH meaning
- add collected ack
---
 drivers/usb/host/ehci-platform.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index f343967443e23..6924f0316e9a8 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -370,6 +370,8 @@ static int ehci_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;
-- 
2.25.1