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Groups > linux.kernel > #1273301
| From | Cory Tusar <cory.tusar@pid1solutions.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2 2/5] Documentation: devicetree: Add DT bindings to eeprom_93xx46 driver. |
| Date | 2015-11-19 18:40 +0100 |
| Message-ID | <qwBlD-3WL-1@gated-at.bofh.it> (permalink) |
| References | <qwoeK-3V4-3@gated-at.bofh.it> <qwoeK-3V4-9@gated-at.bofh.it> <qwyQN-2dv-1@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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On 11/19/2015 09:59 AM, Rob Herring wrote:
> 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.
Easy enough. Will fix for v3. Thanks.
>> + 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
>>
- --
Cory Tusar
Principal
PID 1 Solutions, Inc.
"There are two ways of constructing a software design. One way is to
make it so simple that there are obviously no deficiencies, and the
other way is to make it so complicated that there are no obvious
deficiencies." --Sir Charles Anthony Richard Hoare
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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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