Re: [PATCH] arm64: dts: rockchip: rk3328: Fix UART pull-ups

2020-12-04 Thread Heiko Stuebner
On Fri, 4 Dec 2020 14:48:05 +0800, Chen-Yu Tsai wrote: > For UARTs, the local pull-ups should be on the RX pin, not the TX pin. > UARTs transmit active-low, so a disconnected RX pin should be pulled > high instead of left floating to prevent noise being interpreted as > transmissions. > > This get

[PATCH] arm64: dts: rockchip: rk3328: Fix UART pull-ups

2020-12-03 Thread Chen-Yu Tsai
From: Chen-Yu Tsai For UARTs, the local pull-ups should be on the RX pin, not the TX pin. UARTs transmit active-low, so a disconnected RX pin should be pulled high instead of left floating to prevent noise being interpreted as transmissions. This gets rid of bogus sysrq events when the UART cons