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authorSylvain Rochet <sylvain.rochet@finsecur.com>2016-10-16 19:21:45 +0300
committerAlexandre Belloni <alexandre.belloni@free-electrons.com>2016-10-20 18:37:18 +0300
commit138c2b2f175b781242342ee96fa125558c34a245 (patch)
tree593e3052e5fada5fa33fc8b322f128dc62410fa2 /arch/arm/boot/dts/at91sam9rl.dtsi
parent3d9cc1ab767732ca56d2dbe353637fb8221af264 (diff)
downloadlinux-138c2b2f175b781242342ee96fa125558c34a245.tar.xz
ARM: dts: at91: fixes dbgu pinctrl, set pullup on rx, clear pullup on tx
Remove pullup on dbgu DTXD signal, it is a push-pull output thus the pullup is pointless. Add pullup on dbgu DRXD signal, it prevents the DRXD signal to be left floating and so consuming a useless extra amount of power in crowbarred state if nothing is externally connected to dbgu. Signed-off-by: Sylvain Rochet <sylvain.rochet@finsecur.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'arch/arm/boot/dts/at91sam9rl.dtsi')
-rw-r--r--arch/arm/boot/dts/at91sam9rl.dtsi4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/at91sam9rl.dtsi b/arch/arm/boot/dts/at91sam9rl.dtsi
index 70adf940d98c..f4c129a98f17 100644
--- a/arch/arm/boot/dts/at91sam9rl.dtsi
+++ b/arch/arm/boot/dts/at91sam9rl.dtsi
@@ -438,8 +438,8 @@
dbgu {
pinctrl_dbgu: dbgu-0 {
atmel,pins =
- <AT91_PIOA 21 AT91_PERIPH_A AT91_PINCTRL_NONE>,
- <AT91_PIOA 22 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;
+ <AT91_PIOA 21 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>,
+ <AT91_PIOA 22 AT91_PERIPH_A AT91_PINCTRL_NONE>;
};
};