* [PATCH v2] arm64: dts: rockchip: Fix rk3566-bigtreetech-cb2 touchscreen property
@ 2026-07-21 13:54 ` Fabio Estevam
0 siblings, 0 replies; 2+ messages in thread
From: Fabio Estevam @ 2026-07-21 13:54 UTC (permalink / raw)
To: heiko
Cc: robh, krzk+dt, conor+dt, devicetree, linux-arm-kernel,
linux-rockchip, ivan8215145640, Fabio Estevam
The TSC2007 driver uses the ti,max-rt property to specify the maximum
touch resistance, but the rk3566-bigtreetech-cb2 device tree uses the
undocumented ti,rt-thr property instead.
As a result, the configured value is ignored and the driver falls back
to its default maximum resistance value of 4095.
Replace ti,rt-thr with ti,max-rt to preserve the intended resistance
threshold of 3000.
Fixes: bfbc663d2733 ("arm64: dts: rockchip: Add BigTreeTech CB2 and Pi2")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
Changes since v1:
- Use the documented ti,max-rt instead. (Sashiko)
arch/arm64/boot/dts/rockchip/rk3566-bigtreetech-cb2.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3566-bigtreetech-cb2.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-bigtreetech-cb2.dtsi
index b6cf03a7ba66..04cf285e6c2a 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-bigtreetech-cb2.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3566-bigtreetech-cb2.dtsi
@@ -569,7 +569,7 @@ tft_tp: touchscreen@48 {
reg = <0x48>;
status = "okay";
ti,x-plate-ohms = <660>;
- ti,rt-thr = <3000>;
+ ti,max-rt = <3000>;
ti,fuzzx = <32>;
ti,fuzzy = <16>;
};
--
2.43.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH v2] arm64: dts: rockchip: Fix rk3566-bigtreetech-cb2 touchscreen property
@ 2026-07-21 13:54 ` Fabio Estevam
0 siblings, 0 replies; 2+ messages in thread
From: Fabio Estevam @ 2026-07-21 13:54 UTC (permalink / raw)
To: heiko
Cc: robh, krzk+dt, conor+dt, devicetree, linux-arm-kernel,
linux-rockchip, ivan8215145640, Fabio Estevam
The TSC2007 driver uses the ti,max-rt property to specify the maximum
touch resistance, but the rk3566-bigtreetech-cb2 device tree uses the
undocumented ti,rt-thr property instead.
As a result, the configured value is ignored and the driver falls back
to its default maximum resistance value of 4095.
Replace ti,rt-thr with ti,max-rt to preserve the intended resistance
threshold of 3000.
Fixes: bfbc663d2733 ("arm64: dts: rockchip: Add BigTreeTech CB2 and Pi2")
Signed-off-by: Fabio Estevam <festevam@gmail.com>
---
Changes since v1:
- Use the documented ti,max-rt instead. (Sashiko)
arch/arm64/boot/dts/rockchip/rk3566-bigtreetech-cb2.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3566-bigtreetech-cb2.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-bigtreetech-cb2.dtsi
index b6cf03a7ba66..04cf285e6c2a 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-bigtreetech-cb2.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3566-bigtreetech-cb2.dtsi
@@ -569,7 +569,7 @@ tft_tp: touchscreen@48 {
reg = <0x48>;
status = "okay";
ti,x-plate-ohms = <660>;
- ti,rt-thr = <3000>;
+ ti,max-rt = <3000>;
ti,fuzzx = <32>;
ti,fuzzy = <16>;
};
--
2.43.0
_______________________________________________
Linux-rockchip mailing list
Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 2+ messages in thread
end of thread, other threads:[~2026-07-21 13:55 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-07-21 13:54 [PATCH v2] arm64: dts: rockchip: Fix rk3566-bigtreetech-cb2 touchscreen property Fabio Estevam
2026-07-21 13:54 ` Fabio Estevam
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.