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From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Lubomir Rintel <lkundrak@v3.sk>
Cc: Mark Brown <broonie@kernel.org>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	quozl@laptop.org, Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Eric Miao <eric.y.miao@gmail.com>,
	Haojian Zhuang <haojian.zhuang@gmail.com>,
	Daniel Mack <daniel@zonque.org>,
	Robert Jarzmik <robert.jarzmik@free.fr>,
	linux-spi <linux-spi@vger.kernel.org>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
	<devicetree@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH 09/11] dt-bindings: spi/spi-pxa2xx: Add ready GPIO signal
Date: Thu, 11 Oct 2018 09:26:39 +0200	[thread overview]
Message-ID: <CAMuHMdWJ1YN-_HKbXHH_zhJcG23-9ZnXn3hfV=4bPQHbV6No3g@mail.gmail.com> (raw)
In-Reply-To: <20181010170936.316862-10-lkundrak@v3.sk>

Hi Lubomir,

On Wed, Oct 10, 2018 at 7:10 PM Lubomir Rintel <lkundrak@v3.sk> wrote:
> This this is used to let the SPI master know that our FIFO is filled and
> we're ready to service a transfer. Only useful in slave mode.
>
> A signal like this is used by an embedded controller on a OLPC XO 1.75
> machine, that happens to be a SPI master.
>
> Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>

Thanks for your patch!

> --- a/Documentation/devicetree/bindings/spi/spi-pxa2xx.txt
> +++ b/Documentation/devicetree/bindings/spi/spi-pxa2xx.txt
> @@ -12,6 +12,8 @@ Optional properties:
>  - cs-gpios: list of GPIO chip selects. See the SPI bus bindings,
>    Documentation/devicetree/bindings/spi/spi-bus.txt
>  - spi-slave: Empty property indicating the SPI controller is used in slave mode.
> +- ready-gpio: GPIO used to signal a SPI master that the FIFO is filled

ready-gpios

Documentation/devicetree/bindings/gpio/gpio.txt:
   "GPIO properties named "[<name>-]gpio" are valid and old
    bindings use it, but are only supported for compatibility reasons
and should not
    be used for newer bindings since it has been deprecated."

> +  and we're ready to service a transfer. Only useful in slave mode.
>
>  Child nodes represent devices on the SPI bus
>    See ../spi/spi-bus.txt

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

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

WARNING: multiple messages have this Message-ID (diff)
From: geert@linux-m68k.org (Geert Uytterhoeven)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 09/11] dt-bindings: spi/spi-pxa2xx: Add ready GPIO signal
Date: Thu, 11 Oct 2018 09:26:39 +0200	[thread overview]
Message-ID: <CAMuHMdWJ1YN-_HKbXHH_zhJcG23-9ZnXn3hfV=4bPQHbV6No3g@mail.gmail.com> (raw)
In-Reply-To: <20181010170936.316862-10-lkundrak@v3.sk>

Hi Lubomir,

On Wed, Oct 10, 2018 at 7:10 PM Lubomir Rintel <lkundrak@v3.sk> wrote:
> This this is used to let the SPI master know that our FIFO is filled and
> we're ready to service a transfer. Only useful in slave mode.
>
> A signal like this is used by an embedded controller on a OLPC XO 1.75
> machine, that happens to be a SPI master.
>
> Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>

Thanks for your patch!

> --- a/Documentation/devicetree/bindings/spi/spi-pxa2xx.txt
> +++ b/Documentation/devicetree/bindings/spi/spi-pxa2xx.txt
> @@ -12,6 +12,8 @@ Optional properties:
>  - cs-gpios: list of GPIO chip selects. See the SPI bus bindings,
>    Documentation/devicetree/bindings/spi/spi-bus.txt
>  - spi-slave: Empty property indicating the SPI controller is used in slave mode.
> +- ready-gpio: GPIO used to signal a SPI master that the FIFO is filled

ready-gpios

Documentation/devicetree/bindings/gpio/gpio.txt:
   "GPIO properties named "[<name>-]gpio" are valid and old
    bindings use it, but are only supported for compatibility reasons
and should not
    be used for newer bindings since it has been deprecated."

> +  and we're ready to service a transfer. Only useful in slave mode.
>
>  Child nodes represent devices on the SPI bus
>    See ../spi/spi-bus.txt

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

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

  reply	other threads:[~2018-10-11  7:26 UTC|newest]

Thread overview: 70+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-10-10 17:09 [PATCH 0/11] spi: pxa2xx: add DT and slave mode support Lubomir Rintel
2018-10-10 17:09 ` Lubomir Rintel
2018-10-10 17:09 ` [PATCH v2 01/11] dt-bindings: spi/spi-pxa2xx: add PXA2xx SSP SPI Controller Lubomir Rintel
2018-10-10 17:09   ` Lubomir Rintel
2018-10-11 14:27   ` Mark Brown
2018-10-11 14:27     ` Mark Brown
2018-10-11 17:59     ` Lubomir Rintel
2018-10-11 17:59       ` Lubomir Rintel
2018-10-12 17:00       ` Mark Brown
2018-10-12 17:00         ` Mark Brown
2018-10-17 19:32         ` Rob Herring
2018-10-17 19:32           ` Rob Herring
2018-11-04 12:00   ` Pavel Machek
2018-11-04 12:00     ` Pavel Machek
2018-10-10 17:09 ` [PATCH v2 02/11] PCI: Provide pci_match_id() with CONFIG_PCI=n Lubomir Rintel
2018-10-10 17:09   ` Lubomir Rintel
2018-11-04 12:02   ` Pavel Machek
2018-11-04 12:02     ` Pavel Machek
2018-10-10 17:09 ` [PATCH 03/11] spi: pxa2xx: Use an enum for type Lubomir Rintel
2018-10-10 17:09   ` Lubomir Rintel
2018-11-04 12:03   ` Pavel Machek
2018-11-04 12:03     ` Pavel Machek
2018-10-10 17:09 ` [PATCH 04/11] spi: pxa2xx: Add devicetree support Lubomir Rintel
2018-10-10 17:09   ` Lubomir Rintel
2018-11-04 12:04   ` Pavel Machek
2018-11-04 12:04     ` Pavel Machek
2018-10-10 17:09 ` [PATCH 05/11] DT: marvell,mmp2: Add SSP1 and SSP3 Lubomir Rintel
2018-10-10 17:09   ` Lubomir Rintel
2018-10-29  5:35   ` James Cameron
2018-10-29  5:35     ` James Cameron
2018-11-04 12:06   ` Pavel Machek
2018-11-04 12:06     ` Pavel Machek
2018-10-10 17:09 ` [PATCH 06/11] dt-bindings: spi/spi-pxa2xx: Add spi-slave property Lubomir Rintel
2018-10-10 17:09   ` Lubomir Rintel
2018-10-17 19:33   ` Rob Herring
2018-10-17 19:33     ` Rob Herring
2018-11-04 12:07   ` Pavel Machek
2018-11-04 12:07     ` Pavel Machek
2018-10-10 17:09 ` [PATCH 07/11] spi: Deal with slaves that return from transfer_one() unfinished Lubomir Rintel
2018-10-10 17:09   ` Lubomir Rintel
2018-10-11  7:23   ` Geert Uytterhoeven
2018-10-11  7:23     ` Geert Uytterhoeven
2018-10-11  7:23     ` Geert Uytterhoeven
2018-11-04 12:09   ` Pavel Machek
2018-11-04 12:09     ` Pavel Machek
2018-10-10 17:09 ` [PATCH 08/11] spi: pxa2xx: Add slave mode support Lubomir Rintel
2018-10-10 17:09   ` Lubomir Rintel
2018-11-04 12:12   ` Pavel Machek
2018-11-04 12:12     ` Pavel Machek
2018-10-10 17:09 ` [PATCH 09/11] dt-bindings: spi/spi-pxa2xx: Add ready GPIO signal Lubomir Rintel
2018-10-10 17:09   ` Lubomir Rintel
2018-10-11  7:26   ` Geert Uytterhoeven [this message]
2018-10-11  7:26     ` Geert Uytterhoeven
2018-10-11  7:26     ` Geert Uytterhoeven
2018-11-04 12:13   ` Pavel Machek
2018-11-04 12:13     ` Pavel Machek
2018-10-10 17:09 ` [PATCH 10/11] spi: pxa2xx: Add ready signal Lubomir Rintel
2018-10-10 17:09   ` Lubomir Rintel
2018-10-11  7:28   ` Geert Uytterhoeven
2018-10-11  7:28     ` Geert Uytterhoeven
2018-10-11  7:28     ` Geert Uytterhoeven
2018-10-11 16:13     ` Lubomir Rintel
2018-10-11 16:13       ` Lubomir Rintel
2018-10-11 16:13       ` Lubomir Rintel
2018-11-04 12:16   ` Pavel Machek
2018-11-04 12:16     ` Pavel Machek
2018-10-10 17:09 ` [PATCH 11/11] spi: pxa2xx: Deal with the leftover garbage in TXFIFO Lubomir Rintel
2018-10-10 17:09   ` Lubomir Rintel
2018-11-04 12:19   ` Pavel Machek
2018-11-04 12:19     ` Pavel Machek

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