Re: [PATCH] usb: ehci-platform: increase EHCI_MAX_RSTS to 4

From: Masahiro Yamada
Date: Mon Oct 17 2016 - 09:04:39 EST

Hi Greg,

2016-10-17 21:30 GMT+09:00 Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>:
> On Mon, Oct 17, 2016 at 08:11:59PM +0900, Masahiro Yamada wrote:
>> Socionext LD11 SoC (arch/arm64/boot/dts/socionext/uniphier-ld11.dtsi)
>> needs to handle 4 reset lines for EHCI.
> Why? What makes it different from other EHCI implementations?
> thanks,
> greg k-h

This is a generic EHCI driver, but the number of clocks/resets
are SoC-specific.

The following patch you picked up will remind you something?

commit 73577d61799e8d8bb7d69a9acdc54923e5998138
Author: Icenowy Zheng <icenowy@xxxxxxxx>
Date: Fri Aug 12 11:06:22 2016 +0800

ehci-platform: add the max clock number to 4

Allwinner A64 EHCI requires 4 clocks to be enabled.

Signed-off-by: Icenowy Zheng <icenowy@xxxxxxxx>
Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

Best Regards
Masahiro Yamada