The flow control lines from a user accessible UART are optional, the user might not have anything connected to those pins. In order to prevent random interrupts happening and noise affecting the cts pin should be pulled up. The only boards affected (that care about uart*_cts ) are the veyron chromeos devices and the firefly. Veyron already has something like that, which I now have to remove in the second patch. Firefly uses uart0_cts for the wifi chip communications, same thing as veyron, so it should be fine having it. Changes in v2: - Restrict changes only to cts pin, leave rts alone - CC people with the firefly board - New patch removing redundant pullup code from veyron - cover letter Alexandru M Stan (2): ARM: dts: rockchip: pull up cts lines on rk3288 ARM: dts: rockchip: Remove specific cts pullup from veyron arch/arm/boot/dts/rk3288-veyron.dtsi | 12 ------------ arch/arm/boot/dts/rk3288.dtsi | 8 ++++---- 2 files changed, 4 insertions(+), 16 deletions(-) -- 2.5.0.457.gab17608 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
