[PATCH 6.6 145/254] arm64: dts: rockchip: Fix voltage threshold for volume keys for Pinephone Pro

Greg Kroah-Hartman
2026-01-28T15:36:11Z

From: Ondrej Jirman <megi@xff.cz>

commit 5497ffe305b2ea31ae62d4a311d7cabfb671f54a upstream.

Previously sometimes pressing the volume-down button would register as
a volume-up button. Match the thresholds as shown in the Pinephone Pro
schematic.

Tests:

~ $ evtest
// Mashed the volume down ~100 times with varying intensity
Event: time xxx, type 1 (EV_KEY), code 114 (KEY_VOLUMEDOWN), value 1
Event: time xxx, type 1 (EV_KEY), code 114 (KEY_VOLUMEDOWN), value 0
// Mashed the volume up ~100 times with varying intensity
Event: time xxx, type 1 (EV_KEY), code 115 (KEY_VOLUMEUP), value 1
Event: time xxx, type 1 (EV_KEY), code 115 (KEY_VOLUMEUP), value 0

Fixes: d3150ed53580 ("arm64: dts: rockchip: Add support for volume keys to rk3399-pinephone-pro")
Cc: stable@vger.kernel.org
Signed-off-by: Ondrej Jirman <megi@xff.cz>
Signed-off-by: Rudraksha Gupta <guptarud@gmail.com>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Link: https://patch.msgid.link/20251124-ppp_light_accel_mag_vol-down-v5-4-f9a10a0a50eb@gmail.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-pinephone-pro.dts
@@ -40,13 +40,13 @@
button-up {
label = "Volume Up";
linux,code = <KEY_VOLUMEUP>;
- press-threshold-microvolt = <100000>;
+ press-threshold-microvolt = <2000>;
};

button-down {
label = "Volume Down";
linux,code = <KEY_VOLUMEDOWN>;
- press-threshold-microvolt = <600000>;
+ press-threshold-microvolt = <300000>;
};
};