On 03/12/2019 15:21:47+0100, Ingo van Lil wrote:

Pull-ups for SAM9 UART/USART TX lines were disabled in a previous
commit. However, several chips in the SAM9 family require pull-ups to
prevent the TX lines from falling (and causing an endless break
condition) when the transceiver is disabled.

From the SAM9G20 datasheet, 32.5.1: "To prevent the TXD line from
falling when the USART is disabled, the use of an internal pull up
is mandatory.". This commit reenables the pull-ups for all chips having
that sentence in their datasheets.

Fixes: 5e04822f7db5 ("ARM: dts: at91: fixes uart pinctrl, set pullup on rx, clear pullup on tx")
Signed-off-by: Ingo van Lil <redacted>
Cc: Peter Rosin <redacted>
---
 arch/arm/boot/dts/at91sam9260.dtsi | 12 ++++++------
 arch/arm/boot/dts/at91sam9261.dtsi |  6 +++---
 arch/arm/boot/dts/at91sam9263.dtsi |  6 +++---
 arch/arm/boot/dts/at91sam9g45.dtsi |  8 ++++----
 arch/arm/boot/dts/at91sam9rl.dtsi  |  8 ++++----
 5 files changed, 20 insertions(+), 20 deletions(-)

Applied, thanks.

-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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