From: Peter Rosin <peda@axentia.se>
To: linux-kernel@vger.kernel.org
Cc: Peter Rosin <peda@axentia.se>,
Nicolas Ferre <nicolas.ferre@microchip.com>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Russell King <linux@armlinux.org.uk>,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org
Subject: [PATCH 3/3] ARM: dts: at91sam9260: pullup rx on usart0
Date: Wed, 21 Mar 2018 16:35:52 +0100 [thread overview]
Message-ID: <20180321153552.29213-4-peda@axentia.se> (raw)
In-Reply-To: <20180321153552.29213-1-peda@axentia.se>
For consistency with all other serial pins, add this pullup. It also
prevents the signal from floating and so consuming a useless extra amount
of power in crowbarred state if nothing is connected to RX.
Signed-off-by: Peter Rosin <peda@axentia.se>
---
arch/arm/boot/dts/at91sam9260.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/at91sam9260.dtsi b/arch/arm/boot/dts/at91sam9260.dtsi
index 3ae7e6c55fe4..9118e29b6d6a 100644
--- a/arch/arm/boot/dts/at91sam9260.dtsi
+++ b/arch/arm/boot/dts/at91sam9260.dtsi
@@ -434,8 +434,8 @@
usart0 {
pinctrl_usart0: usart0-0 {
atmel,pins =
- <AT91_PIOB 4 AT91_PERIPH_A AT91_PINCTRL_NONE /* PB4 periph A */
- AT91_PIOB 5 AT91_PERIPH_A AT91_PINCTRL_NONE>; /* PB5 periph A */
+ <AT91_PIOB 4 AT91_PERIPH_A AT91_PINCTRL_NONE
+ AT91_PIOB 5 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;
};
pinctrl_usart0_rts: usart0_rts-0 {
--
2.11.0
next prev parent reply other threads:[~2018-03-21 15:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-21 15:35 [PATCH 0/3] ARM: dts: at91: cleanup pullup on uarts Peter Rosin
2018-03-21 15:35 ` [PATCH 1/3] ARM: dts: at91: fixes uart pinctrl, set pullup on rx, clear pullup on tx Peter Rosin
2018-03-21 15:35 ` [PATCH 2/3] ARM: dts: at91rm9200: pullup rx on uart0 Peter Rosin
2018-03-21 15:35 ` Peter Rosin [this message]
2018-03-21 20:50 ` [PATCH 0/3] ARM: dts: at91: cleanup pullup on uarts Alexandre Belloni
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=20180321153552.29213-4-peda@axentia.se \
--to=peda@axentia.se \
--cc=alexandre.belloni@bootlin.com \
--cc=devicetree@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@armlinux.org.uk \
--cc=mark.rutland@arm.com \
--cc=nicolas.ferre@microchip.com \
--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
all inboxes | Powered by JetHome®