From 1da5cc7373f44cb73fd323d78e1184e61cb4b46e Mon Sep 17 00:00:00 2001 From: Dave Stevenson Date: Wed, 2 Apr 2025 12:37:08 +0100 Subject: [PATCH] dtoverlays: Add invx and invy overrides to ads7846 touch overlay It had swapxy, but no way to trigger the X and Y inversions Also use the generic "touchscreen-swapped-x-y" for swapxy instead of the TI specific "ti,swap-xy". Signed-off-by: Dave Stevenson --- arch/arm/boot/dts/overlays/README | 2 ++ arch/arm/boot/dts/overlays/ads7846-overlay.dts | 4 +++- 2 files changed, 5 insertions(+), 1 deletion(-) --- a/arch/arm/boot/dts/overlays/README +++ b/arch/arm/boot/dts/overlays/README @@ -602,6 +602,8 @@ Params: cs SPI bus pmax Maximum reported pressure value (default 65535) xohms Touchpanel sensitivity (X-plate resistance) (default 400) + invx Invert x axis + invy Invert y axis penirq is required and usually xohms (60-100) has to be set as well. Apart from that, pmax (255) and swapxy are also common. --- a/arch/arm/boot/dts/overlays/ads7846-overlay.dts +++ b/arch/arm/boot/dts/overlays/ads7846-overlay.dts @@ -77,7 +77,7 @@ <&ads7846>,"interrupts:0", <&ads7846>,"pendown-gpio:4"; penirq_pull = <&ads7846_pins>,"brcm,pull:0"; - swapxy = <&ads7846>,"ti,swap-xy?"; + swapxy = <&ads7846>,"touchscreen-swapped-x-y?"; xmin = <&ads7846>,"ti,x-min;0"; ymin = <&ads7846>,"ti,y-min;0"; xmax = <&ads7846>,"ti,x-max;0"; @@ -85,5 +85,7 @@ pmin = <&ads7846>,"ti,pressure-min;0"; pmax = <&ads7846>,"ti,pressure-max;0"; xohms = <&ads7846>,"ti,x-plate-ohms;0"; + invx = <&ads7846>,"touchscreen-inverted-x?"; + invy = <&ads7846>,"touchscreen-inverted-y?"; }; };