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ARM: dts: am437x-sk: reduce col-scan-delay-us
authorFelipe Balbi <balbi@ti.com>
Thu, 9 Apr 2015 15:59:27 +0000 (10:59 -0500)
committerTony Lindgren <tony@atomide.com>
Mon, 4 May 2015 16:21:02 +0000 (09:21 -0700)
The new AM437x SK Beta boards have removed the
large capacitors on the gpio-matrix column lines
which means we can reduce col-scan-delay-us to 5us
without loosing functionality.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
arch/arm/boot/dts/am437x-sk-evm.dts patch | blob | blame | history

diff --git a/arch/arm/boot/dts/am437x-sk-evm.dts b/arch/arm/boot/dts/am437x-sk-evm.dts
index fbc50f92e6229b30540fb5ef539940511acd4cd9..c17097d2c167d4718f76200f51e599d6605d144e 100644 (file)
--- a/arch/arm/boot/dts/am437x-sk-evm.dts
+++ b/arch/arm/boot/dts/am437x-sk-evm.dts
@@ -49,7 +49,7 @@
                pinctrl-0 = <&matrix_keypad_pins>;
 
                debounce-delay-ms = <5>;
-               col-scan-delay-us = <1500>;
+               col-scan-delay-us = <5>;
 
                row-gpios = <&gpio5 5 GPIO_ACTIVE_HIGH          /* Bank5, pin5 */
                                &gpio5 6 GPIO_ACTIVE_HIGH>;     /* Bank5, pin6 */