2022-11-21 16:13:24

by Geert Uytterhoeven

[permalink] [raw]
Subject: [PATCH] usb: USB_FOTG210 should depend on ARCH_GEMINI

The Faraday Technology FOTG210 USB2 Dual Role Controller is only present
on Cortina Systems Gemini SoCs. Hence add a dependency on ARCH_GEMINI,
to prevent asking the user about its drivers when configuring a kernel
without Cortina Systems Gemini SoC support.

Fixes: 1dd33a9f1b95ab59 ("usb: fotg210: Collect pieces of dual mode controller")
Signed-off-by: Geert Uytterhoeven <[email protected]>
---
drivers/usb/fotg210/Kconfig | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/usb/fotg210/Kconfig b/drivers/usb/fotg210/Kconfig
index 534206ee0d1db74f..dad1b088aba59217 100644
--- a/drivers/usb/fotg210/Kconfig
+++ b/drivers/usb/fotg210/Kconfig
@@ -4,6 +4,7 @@ config USB_FOTG210
tristate "Faraday FOTG210 USB2 Dual Role controller"
depends on USB || USB_GADGET
depends on HAS_DMA && HAS_IOMEM
+ depends on ARCH_GEMINI || COMPILE_TEST
default ARCH_GEMINI
select MFD_SYSCON
help
--
2.25.1



2022-11-22 00:02:11

by Linus Walleij

[permalink] [raw]
Subject: Re: [PATCH] usb: USB_FOTG210 should depend on ARCH_GEMINI

On Mon, Nov 21, 2022 at 4:22 PM Geert Uytterhoeven
<[email protected]> wrote:

> The Faraday Technology FOTG210 USB2 Dual Role Controller is only present
> on Cortina Systems Gemini SoCs. Hence add a dependency on ARCH_GEMINI,
> to prevent asking the user about its drivers when configuring a kernel
> without Cortina Systems Gemini SoC support.
>
> Fixes: 1dd33a9f1b95ab59 ("usb: fotg210: Collect pieces of dual mode controller")
> Signed-off-by: Geert Uytterhoeven <[email protected]>

Ok that's fair. When Faraday merged these drivers they probably had
some other system(s) in mind, but they don't talk much recently so:
Reviewed-by: Linus Walleij <[email protected]>

Yours,
Linus Walleij

2022-12-05 23:32:24

by Linus Walleij

[permalink] [raw]
Subject: Re: [PATCH] usb: USB_FOTG210 should depend on ARCH_GEMINI

On Mon, Nov 21, 2022 at 4:22 PM Geert Uytterhoeven
<[email protected]> wrote:

> The Faraday Technology FOTG210 USB2 Dual Role Controller is only present
> on Cortina Systems Gemini SoCs.

As it turns out, this is not true. The TI nSpire uses this too, I should have
noted since the nSpire maintainer was patching the driver...
https://lore.kernel.org/linux-usb/[email protected]/

Shall we revert it or just add another clause for the nSpire?

Yours,
Linus Walleij

2022-12-06 08:14:01

by Geert Uytterhoeven

[permalink] [raw]
Subject: Re: [PATCH] usb: USB_FOTG210 should depend on ARCH_GEMINI

Hi Linus,

On Mon, Dec 5, 2022 at 11:24 PM Linus Walleij <[email protected]> wrote:
> On Mon, Nov 21, 2022 at 4:22 PM Geert Uytterhoeven
> <[email protected]> wrote:
> > The Faraday Technology FOTG210 USB2 Dual Role Controller is only present
> > on Cortina Systems Gemini SoCs.
>
> As it turns out, this is not true. The TI nSpire uses this too, I should have
> noted since the nSpire maintainer was patching the driver...
> https://lore.kernel.org/linux-usb/[email protected]/
>
> Shall we revert it or just add another clause for the nSpire?

Oh, but the integration is not (yet) upstream, as I didn't find any
"faraday,fotg210" outside gemini.dtsi.

I guess another clause would be the most-userfriendly solution.

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- [email protected]

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds

2022-12-06 14:39:32

by Linus Walleij

[permalink] [raw]
Subject: Re: [PATCH] usb: USB_FOTG210 should depend on ARCH_GEMINI

On Tue, Dec 6, 2022 at 9:01 AM Geert Uytterhoeven <[email protected]> wrote:
> On Mon, Dec 5, 2022 at 11:24 PM Linus Walleij <[email protected]> wrote:
> > On Mon, Nov 21, 2022 at 4:22 PM Geert Uytterhoeven
> > <[email protected]> wrote:
> > > The Faraday Technology FOTG210 USB2 Dual Role Controller is only present
> > > on Cortina Systems Gemini SoCs.
> >
> > As it turns out, this is not true. The TI nSpire uses this too, I should have
> > noted since the nSpire maintainer was patching the driver...
> > https://lore.kernel.org/linux-usb/[email protected]/
> >
> > Shall we revert it or just add another clause for the nSpire?
>
> Oh, but the integration is not (yet) upstream, as I didn't find any
> "faraday,fotg210" outside gemini.dtsi.

Ah it is still brewing, sorry.

> I guess another clause would be the most-userfriendly solution.

Yeah we can just add it when adding nSpire II.

Yours,
Linus Walleij