Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1181734
| From | Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v3] phy: rcar-gen2 usb: Add Host/Function switching for USB0 |
| Date | 2015-07-10 18:40 +0200 |
| Message-ID | <pKJvc-8kG-19@gated-at.bofh.it> (permalink) |
| References | <pJ8R4-5a3-27@gated-at.bofh.it> <pJzHB-5bl-37@gated-at.bofh.it> |
| Organization | Cogent Embedded |
Hello.
On 07/07/2015 02:55 PM, Phil Edworthy wrote:
> Instead of statically selecting the PHY connection to either the
> USBHS (Function) or PCI0 (Host) IP blocks, this change allows the
> dts to specifiy gpio pins for the vbus and id signals. Additional
These GPIOs don't have anything to do with the PHY, they're interfacing
Maxim MAX3355 OTG chip for which I have submitted the extcon driver.
> gpio pins are used to control power to an external OTG device and
> an override to turn vbus on/off.
> Note: the R-Car USB PHY only allows this Host/Function switching
> on channel 0.
> This has been tested on a r8a7791 based Koelsch board, which uses
> a MAX3355 device to supply vbus power when needed.
> Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
I'm inclined to NAK this. You're modifying the wrong driver, I think.
WBR, Sergei
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread
Re: [PATCH v3] phy: rcar-gen2 usb: Add Host/Function switching for USB0 Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2015-07-10 18:40 +0200
RE: [PATCH v3] phy: rcar-gen2 usb: Add Host/Function switching for USB0 Phil Edworthy <phil.edworthy@renesas.com> - 2015-07-13 11:10 +0200
Re: [PATCH v3] phy: rcar-gen2 usb: Add Host/Function switching for USB0 Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> - 2015-07-13 12:20 +0200
csiph-web