Thread (21 messages) 21 messages, 5 authors, 2019-10-25

Re: [PATCH v5 0/9] i2c: add support for filters

From: Ludovic Desroches <ludovic.desroches@microchip.com>
Date: 2019-10-25 10:04:41
Also in: linux-devicetree, linux-i2c, lkml

On Thu, Oct 24, 2019 at 08:30:35PM +0200, Wolfram Sang wrote:
On Wed, Sep 11, 2019 at 08:24:14AM +0000, Eugen.Hristev@microchip.com wrote:
quoted
From: Eugen Hristev <redacted>

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 later
[PATCH v4 0/9] i2c: add support for filters
and enhanced to add the bindings for all controllers plus an extra bindings
for the width of the spikes in nanoseconds (digital filters) and cut-off
frequency (analog filters)

First, bindings are created for
'i2c-analog-filter'
'i2c-digital-filter'
'i2c-digital-filter-width-ns'
'i2c-analog-filter-cutoff-frequency'

The support is added in the i2c core to retrieve filter width/cutoff frequency
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.
Applied patches 1-7 to for-next (patch 3 is v6). Thanks for your
patience and thanks to Ludovic and Peter for the review! Patches 8-9
should go via the at91 tree.
Thanks, patch 8 and 9 applied to at91-dt.

Regards

Ludovic

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help