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Groups > linux.kernel > #1273186
| From | Rob Herring <robh@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2 2/5] Documentation: devicetree: Add DT bindings to eeprom_93xx46 driver. |
| Date | 2015-11-19 16:00 +0100 |
| Message-ID | <qwyQN-2dv-1@gated-at.bofh.it> (permalink) |
| References | <qwoeK-3V4-3@gated-at.bofh.it> <qwoeK-3V4-9@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, Nov 18, 2015 at 10:29:38PM -0500, Cory Tusar wrote:
> This commit documents bindings to be added to the eeprom_93xx46 driver
> which will allow:
>
> - Device word size and read-only attributes to be specified.
> - A device-specific compatible string for use with Atmel AT93C46D
> EEPROMs.
> - Specifying a GPIO line to function as a 'select' or 'enable' signal
> prior to accessing the EEPROM.
>
> Signed-off-by: Cory Tusar <cory.tusar@pid1solutions.com>
One nit, but:
Acked-by: Rob Herring <robh@kernel.org>
> ---
> .../devicetree/bindings/misc/eeprom-93xx46.txt | 25 ++++++++++++++++++++++
> 1 file changed, 25 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt b/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt
> new file mode 100644
> index 0000000..8e116a1
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/misc/eeprom-93xx46.txt
> @@ -0,0 +1,25 @@
> +EEPROMs (SPI) compatible with Microchip Technology 93xx46 family.
> +
> +Required properties:
> +- compatible : shall be one of:
> + "atmel,at93c46d"
> + "eeprom-93xx46"
> +- data-size : number of data bits per word (either 8 or 16)
> +
> +Optional properties:
> +- read-only : parameter-less property which disables writes to the EEPROM
> +- select-gpios : if present, specifies the GPIO that will be asserted prior to
> + each access to the EEPROM (e.g. for SPI bus multiplexing)
> +
> +Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
> +apply. In particular, "reg" and "spi-max-frequency" properties must be given.
> +
> +Example:
> + 93c46c@0 {
This should be eeprom@0.
> + compatible = "eeprom-93xx46";
> + reg = <0>;
> + spi-max-frequency = <1000000>;
> + spi-cs-high;
> + data-size = <8>;
> + select-gpios = <&gpio4 4 GPIO_ACTIVE_HIGH>;
> + };
> --
> 2.4.10
>
--
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[PATCH v2 0/5] Devicetree support for misc/eeprom/eeprom_93xx46. Cory Tusar <cory.tusar@pid1solutions.com> - 2015-11-19 04:40 +0100
[PATCH v2 1/5] misc: eeprom_93xx46: Fix 16-bit read and write accesses. Cory Tusar <cory.tusar@pid1solutions.com> - 2015-11-19 04:40 +0100
[PATCH v2 2/5] Documentation: devicetree: Add DT bindings to eeprom_93xx46 driver. Cory Tusar <cory.tusar@pid1solutions.com> - 2015-11-19 04:40 +0100
Re: [PATCH v2 2/5] Documentation: devicetree: Add DT bindings to eeprom_93xx46 driver. Rob Herring <robh@kernel.org> - 2015-11-19 16:00 +0100
Re: [PATCH v2 2/5] Documentation: devicetree: Add DT bindings to eeprom_93xx46 driver. Cory Tusar <cory.tusar@pid1solutions.com> - 2015-11-19 18:40 +0100
[PATCH v2 3/5] misc: eeprom_93xx46: Implement eeprom_93xx46 DT bindings. Cory Tusar <cory.tusar@pid1solutions.com> - 2015-11-19 04:40 +0100
Re: [PATCH v2 3/5] misc: eeprom_93xx46: Implement eeprom_93xx46 DT bindings. Vladimir Zapolskiy <vz@mleia.com> - 2015-11-19 07:00 +0100
Re: [PATCH v2 3/5] misc: eeprom_93xx46: Implement eeprom_93xx46 DT bindings. "Andrew F. Davis" <afd@ti.com> - 2015-11-19 15:10 +0100
Re: [PATCH v2 3/5] misc: eeprom_93xx46: Implement eeprom_93xx46 DT bindings. Vladimir Zapolskiy <vz@mleia.com> - 2015-11-19 17:20 +0100
Re: [PATCH v2 3/5] misc: eeprom_93xx46: Implement eeprom_93xx46 DT bindings. Cory Tusar <cory.tusar@pid1solutions.com> - 2015-11-21 06:00 +0100
Re: [PATCH v2 3/5] misc: eeprom_93xx46: Implement eeprom_93xx46 DT bindings. Cory Tusar <cory.tusar@pid1solutions.com> - 2015-11-21 05:50 +0100
Re: [PATCH v2 3/5] misc: eeprom_93xx46: Implement eeprom_93xx46 DT bindings. Vladimir Zapolskiy <vz@mleia.com> - 2015-11-21 19:40 +0100
Re: [PATCH v2 3/5] misc: eeprom_93xx46: Implement eeprom_93xx46 DT bindings. Cory Tusar <cory.tusar@pid1solutions.com> - 2015-11-23 19:30 +0100
[PATCH v2 4/5] misc: eeprom_93xx46: Add quirks to support Atmel AT93C46D device. Cory Tusar <cory.tusar@pid1solutions.com> - 2015-11-19 04:40 +0100
Re: [PATCH v2 4/5] misc: eeprom_93xx46: Add quirks to support Atmel AT93C46D device. Vladimir Zapolskiy <vz@mleia.com> - 2015-11-19 07:00 +0100
Re: [PATCH v2 4/5] misc: eeprom_93xx46: Add quirks to support Atmel AT93C46D device. Cory Tusar <cory.tusar@pid1solutions.com> - 2015-11-23 18:50 +0100
[PATCH v2 5/5] misc: eeprom_93xx46: Add support for a GPIO 'select' line. Cory Tusar <cory.tusar@pid1solutions.com> - 2015-11-19 04:40 +0100
Re: [PATCH v2 5/5] misc: eeprom_93xx46: Add support for a GPIO 'select' line. Vladimir Zapolskiy <vz@mleia.com> - 2015-11-19 07:10 +0100
Re: [PATCH v2 5/5] misc: eeprom_93xx46: Add support for a GPIO 'select' line. Andrew Lunn <andrew@lunn.ch> - 2015-11-19 15:20 +0100
Re: [PATCH v2 5/5] misc: eeprom_93xx46: Add support for a GPIO 'select' line. Vladimir Zapolskiy <vz@mleia.com> - 2015-11-19 18:00 +0100
Re: [PATCH v2 5/5] misc: eeprom_93xx46: Add support for a GPIO 'select' line. Andrew Lunn <andrew@lunn.ch> - 2015-11-19 18:20 +0100
Re: [PATCH v2 5/5] misc: eeprom_93xx46: Add support for a GPIO 'select' line. Cory Tusar <cory.tusar@pid1solutions.com> - 2015-11-25 06:00 +0100
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