From: <Claudiu.Beznea@microchip.com> To: <stern@rowland.harvard.edu> Cc: <gregkh@linuxfoundation.org>, <Nicolas.Ferre@microchip.com>, <alexandre.belloni@bootlin.com>, <Ludovic.Desroches@microchip.com>, <Cristian.Birsan@microchip.com>, <linux-usb@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>, <linux-kernel@vger.kernel.org> Subject: Re: [PATCH] usb: host: ohci-at91: suspend/resume ports after/before OHCI accesses Date: Wed, 23 Jun 2021 14:33:14 +0000 [thread overview] Message-ID: <8bff20a7-8eb8-276a-086e-f1729fbbdbe4@microchip.com> (raw) In-Reply-To: <20210623141907.GC491169@rowland.harvard.edu> On 23.06.2021 17:19, Alan Stern wrote: > EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe > > On Wed, Jun 23, 2021 at 02:09:16PM +0000, Claudiu.Beznea@microchip.com wrote: >> On 23.06.2021 16:59, Alan Stern wrote: >>> One thing you might consider changing: The name of the >>> ohci_at91_port_suspend routine is misleading. It doesn't really >>> handle suspending the port; instead it handles the clocks that drive >>> the entire OHCI controller. Right? >> >> It does both as far as I can tell at the moment. > > But the name suggests that it only handles suspending a port. That's > misleading. > > And the way it is used in the SetPortFeature(USB_PORT_FEAT_SUSPEND) > case in ohci_at91_hub_control is just plain wrong. It won't merely > suspend a single port; it will disable the entire OHCI controller. Agree with all the above! > > Alan Stern >
WARNING: multiple messages have this Message-ID (diff)
From: <Claudiu.Beznea@microchip.com> To: <stern@rowland.harvard.edu> Cc: alexandre.belloni@bootlin.com, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Ludovic.Desroches@microchip.com, linux-arm-kernel@lists.infradead.org, Cristian.Birsan@microchip.com Subject: Re: [PATCH] usb: host: ohci-at91: suspend/resume ports after/before OHCI accesses Date: Wed, 23 Jun 2021 14:33:14 +0000 [thread overview] Message-ID: <8bff20a7-8eb8-276a-086e-f1729fbbdbe4@microchip.com> (raw) In-Reply-To: <20210623141907.GC491169@rowland.harvard.edu> On 23.06.2021 17:19, Alan Stern wrote: > EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe > > On Wed, Jun 23, 2021 at 02:09:16PM +0000, Claudiu.Beznea@microchip.com wrote: >> On 23.06.2021 16:59, Alan Stern wrote: >>> One thing you might consider changing: The name of the >>> ohci_at91_port_suspend routine is misleading. It doesn't really >>> handle suspending the port; instead it handles the clocks that drive >>> the entire OHCI controller. Right? >> >> It does both as far as I can tell at the moment. > > But the name suggests that it only handles suspending a port. That's > misleading. > > And the way it is used in the SetPortFeature(USB_PORT_FEAT_SUSPEND) > case in ohci_at91_hub_control is just plain wrong. It won't merely > suspend a single port; it will disable the entire OHCI controller. Agree with all the above! > > Alan Stern > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-06-23 14:33 UTC|newest] Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-06-09 12:10 [PATCH] usb: host: ohci-at91: suspend/resume ports after/before OHCI accesses Claudiu Beznea 2021-06-09 12:10 ` Claudiu Beznea 2021-06-09 12:40 ` Nicolas Ferre 2021-06-09 12:40 ` Nicolas Ferre 2021-06-09 23:07 ` Alan Stern 2021-06-09 23:07 ` Alan Stern 2021-06-23 12:47 ` Claudiu.Beznea 2021-06-23 12:47 ` Claudiu.Beznea 2021-06-23 13:59 ` Alan Stern 2021-06-23 13:59 ` Alan Stern 2021-06-23 14:09 ` Claudiu.Beznea 2021-06-23 14:09 ` Claudiu.Beznea 2021-06-23 14:19 ` Alan Stern 2021-06-23 14:19 ` Alan Stern 2021-06-23 14:33 ` Claudiu.Beznea [this message] 2021-06-23 14:33 ` Claudiu.Beznea 2021-06-23 16:41 ` Alan Stern 2021-06-23 16:41 ` Alan Stern 2021-06-24 6:40 ` Claudiu.Beznea 2021-06-24 6:40 ` Claudiu.Beznea 2021-06-24 6:54 ` Claudiu.Beznea 2021-06-24 6:54 ` Claudiu.Beznea 2021-06-24 13:23 ` Alan Stern 2021-06-24 13:23 ` Alan Stern 2021-06-30 14:46 ` Claudiu.Beznea 2021-06-30 14:46 ` Claudiu.Beznea 2021-06-30 18:21 ` Alan Stern 2021-06-30 18:21 ` Alan Stern 2021-07-01 5:45 ` Claudiu.Beznea 2021-07-01 5:45 ` Claudiu.Beznea 2021-07-01 14:01 ` Alan Stern 2021-07-01 14:01 ` Alan Stern 2021-06-30 14:47 ` Claudiu.Beznea 2021-06-30 14:47 ` Claudiu.Beznea 2021-07-21 8:08 ` Greg KH 2021-07-21 8:08 ` Greg KH
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