From: <Eugen.Hristev@microchip.com>
To: <alexandre.belloni@bootlin.com>,
<Ludovic.Desroches@microchip.com>, <robh+dt@kernel.org>
Cc: <Nicolas.Ferre@microchip.com>,
<linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<Eugen.Hristev@microchip.com>
Subject: [PATCH] ARM: dts: at91: sama5d27_som1_ek: add i2c filters properties
Date: Mon, 25 Nov 2019 09:27:41 +0000 [thread overview]
Message-ID: <1574674036-5589-1-git-send-email-eugen.hristev@microchip.com> (raw)
From: Eugen Hristev <eugen.hristev@microchip.com>
Add properties for i2c filters for i2c0 and i2c1 on sama5d27_som1_ek.
Noise is affecting communication on i2c for example when connecting i2c
camera sensors.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
---
arch/arm/boot/dts/at91-sama5d27_som1_ek.dts | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
index fca5716..b6a22bb 100644
--- a/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
+++ b/arch/arm/boot/dts/at91-sama5d27_som1_ek.dts
@@ -123,6 +123,9 @@
flx1: flexcom@f8038000 {
atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
+ i2c-analog-filter;
+ i2c-digital-filter;
+ i2c-digital-filter-width-ns = <35>;
status = "okay";
i2c2: i2c@600 {
@@ -246,6 +249,9 @@
i2c1: i2c@fc028000 {
dmas = <0>, <0>;
+ i2c-analog-filter;
+ i2c-digital-filter;
+ i2c-digital-filter-width-ns = <35>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_i2c1_default>;
status = "okay";
--
2.7.4
next reply other threads:[~2019-11-25 9:27 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-25 9:27 Eugen.Hristev [this message]
2019-12-02 17:36 ` [PATCH] ARM: dts: at91: sama5d27_som1_ek: add i2c filters properties Alexandre Belloni
2019-12-05 7:45 ` Eugen.Hristev
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1574674036-5589-1-git-send-email-eugen.hristev@microchip.com \
--to=eugen.hristev@microchip.com \
--cc=Ludovic.Desroches@microchip.com \
--cc=Nicolas.Ferre@microchip.com \
--cc=alexandre.belloni@bootlin.com \
--cc=devicetree@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=robh+dt@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).