| From d24bb9c4b5d3b0bb2bd5dd922bae3fce894ab87e Mon Sep 17 00:00:00 2001 |
| From: Phil Elwell <phil@raspberrypi.org> |
| Date: Tue, 1 Oct 2019 10:19:50 +0100 |
| Subject: [PATCH] overlays: Remove hack from uart0 overlay |
| |
| The uart0 overlay contained a hack to return GPIOs 14 and 15 to inputs |
| when the UART0 function was moved to alternative pins. This has the |
| unwanted side effect of claiming GPIOs 14 & 15, preventing them being |
| used for something else. |
| |
| See: https://github.com/raspberrypi/linux/issues/2856 |
| https://www.raspberrypi.org/forums/viewtopic.php?f=98&t=252911 |
| |
| Signed-off-by: Stefan Enge <stefan.enge@escatec.com> |
| Signed-off-by: Phil Elwell <phil@raspberrypi.org> |
| --- |
| arch/arm/boot/dts/overlays/uart0-overlay.dts | 13 ++++++------- |
| 1 file changed, 6 insertions(+), 7 deletions(-) |
| |
| --- a/arch/arm/boot/dts/overlays/uart0-overlay.dts |
| +++ b/arch/arm/boot/dts/overlays/uart0-overlay.dts |
| @@ -17,17 +17,16 @@ |
| target = <&gpio>; |
| __overlay__ { |
| uart0_pins: uart0_pins { |
| - brcm,pins = <14 15 14 15>; |
| - brcm,function = <0 0 4 4>; /* alt0 */ |
| - brcm,pull = <0 0 0 2>; |
| + brcm,pins = <14 15>; |
| + brcm,function = <4>; /* alt0 */ |
| + brcm,pull = <0 2>; |
| }; |
| }; |
| }; |
| |
| __overrides__ { |
| - txd0_pin = <&uart0_pins>,"brcm,pins:8"; |
| - rxd0_pin = <&uart0_pins>,"brcm,pins:12"; |
| - pin_func = <&uart0_pins>,"brcm,function:8", |
| - <&uart0_pins>,"brcm,function:12"; |
| + txd0_pin = <&uart0_pins>,"brcm,pins:0"; |
| + rxd0_pin = <&uart0_pins>,"brcm,pins:4"; |
| + pin_func = <&uart0_pins>,"brcm,function:0"; |
| }; |
| }; |