[v3,3/4] ARM: dts: sun8i-a83t-tbs-a711: Add support for the vibrator motor
diff mbox series

Message ID 20200702112041.1942707-4-megous@megous.com
State Superseded
Headers show
  • Add support for vibrator motor for TBS A711 Tablet
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Commit Message

Ondřej Jirman July 2, 2020, 11:20 a.m. UTC
The board has a vibrator mottor. Hook it to the input subsystem.

According to the PMIC specification, LDO needs to be enabled (value 0b11)
to achieve the specified max driving current of 150mA. We can't drive
the motor with just GPIO mode.

In GPIO mode the chip is probably just using the regular CMOS logic
output circuitry (typically limited to around 20-35mA, but not specified
in this datasheet).

Signed-off-by: Ondrej Jirman <megous@megous.com>
 arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts | 5 +++++
 1 file changed, 5 insertions(+)


Pavel Machek July 12, 2020, 9:02 p.m. UTC | #1

> The board has a vibrator mottor. Hook it to the input subsystem.

motor, I believe.

Best regards,

diff mbox series

diff --git a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
index bfc9bb277a49..a278a1e33930 100644
--- a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
+++ b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
@@ -99,6 +99,11 @@  panel_input: endpoint {
+	vibrator {
+		compatible = "gpio-vibrator";
+		vcc-supply = <&reg_ldo_io1>;
+	};
 	reg_gps: reg-gps {
 		compatible = "regulator-fixed";
 		regulator-name = "gps";