linux-kernel - Re: [PATCH 1/3] usb: host: ohci-platform: add TPL support

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Message-ID: <YrHTba9s2NhBfQT2@rowland.harvard.edu>
Date:   Tue, 21 Jun 2022 10:19:25 -0400
From:   Alan Stern <stern@...land.harvard.edu>
To:     Fabrice Gasnier <fabrice.gasnier@...s.st.com>
Cc:     hminas@...opsys.com, gregkh@...uxfoundation.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
Subject: Re: [PATCH 1/3] usb: host: ohci-platform: add TPL support

On Tue, Jun 21, 2022 at 03:05:04PM +0200, Fabrice Gasnier wrote:
> From: Amelie Delaunay <amelie.delaunay@...s.st.com>
> 
> The TPL support is used to identify targeted devices during EH compliance
> test. The user can add "tpl-support" in the device tree to enable it.
> 
> Signed-off-by: Amelie Delaunay <amelie.delaunay@...s.st.com>
> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@...s.st.com>
> ---

For this patch and the 2/3 ehci-platform patch:

Acked-by: Alan Stern <stern@...land.harvard.edu>

>  drivers/usb/host/ohci-platform.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
> index 47dfbfe9e5190..0adae62651276 100644
> --- 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;
> -- 
> 2.25.1
>