Re: [PATCH v3 0/9] i2c: add support for filters

Eugen.Hristev
2019-08-22T15:00:21Z

On 12.07.2019 11:20, Ludovic Desroches wrote:
> On Tue, Jul 09, 2019 at 03:19:26PM +0200, Eugen Hristev - M18282 wrote:
>> From: Eugen Hristev <eugen.hristev@microchip.com>
>>
>> Hello,
>>
>> This series adds support for analog and digital filters for i2c controllers
>>
>> This series is based on the series:
>> [PATCH v2 0/9] i2c: at91: filters support for at91 SoCs
>> and enhanced to add the bindings for all controllers plus an extra binding
>> for the width of the spikes in nanoseconds.
>>
>> First, bindings are created for
>> 'i2c-ana-filter'
>> 'i2c-dig-filter'
>> 'i2c-filter-width-ns'
>>
>> The support is added in the i2c core to retrieve filter width and add it
>> to the timings structure.
>> Next, the at91 driver is enhanced for supporting digital filter, advanced
>> digital filter (with selectable spike width) and the analog filter.
>>
>> Finally the device tree for two boards are modified to make use of the
>> new properties.
>>
>> This series is the result of the comments on the ML in the direction
>> requested: to make the bindings globally available for i2c drivers.
>>
>> Changes in v3:
>> - made bindings global for i2c controllers and modified accordingly
>> - gave up PADFCDF bit because it's a lack in datasheet
>> - the computation on the width of the spike is based on periph clock as it
>> is done for hold time.
>>
>> Changes in v2:
>> - added device tree bindings and support for enable-ana-filt and
>> enable-dig-filt
>> - added the new properties to the DT for sama5d4_xplained/sama5d2_xplained
>>
>> Eugen Hristev (9):
>> dt-bindings: i2c: at91: add new compatible
>> dt-bindings: i2c: add bindings for i2c analog and digital filter
>> i2c: add support for filter-width-ns optional property
>> i2c: at91: add new platform support for sam9x60
>> i2c: at91: add support for digital filtering
>> i2c: at91: add support for advanced digital filtering
>> i2c: at91: add support for analog filtering
>> ARM: dts: at91: sama5d2_xplained: add analog and digital filter for
>> i2c
>> ARM: dts: at91: sama5d4_xplained: add analog filter for i2c
>>
>> Documentation/devicetree/bindings/i2c/i2c-at91.txt | 3 +-
>> Documentation/devicetree/bindings/i2c/i2c.txt | 11 +++++
>> arch/arm/boot/dts/at91-sama5d2_xplained.dts | 6 +++
>> arch/arm/boot/dts/at91-sama5d4_xplained.dts | 1 +
>> drivers/i2c/busses/i2c-at91-core.c | 38 +++++++++++++++++
>> drivers/i2c/busses/i2c-at91-master.c | 49 ++++++++++++++++++++--
>> drivers/i2c/busses/i2c-at91.h | 13 ++++++
>> drivers/i2c/i2c-core-base.c | 2 +
>> include/linux/i2c.h | 2 +
>> 9 files changed, 121 insertions(+), 4 deletions(-)
>
> Hi,
>
> I don't know if it will fit other vendors need concerning the binding
> but for Microchip it sounds good.
>
> Acked-by: Ludovic Desroches <ludovic.desroches@microchip.com>
> for the whole serie.
>
> Regards
>
> Ludovic
>

Hello Wolfram,

What is the plan for this patch series?

Thanks,
Eugen