* [PATCH] ARM: da850: Fix LEGO EV3 battery voltage gpio
@ 2017-12-03 19:29 David Lechner
2017-12-03 19:56 ` David Lechner
0 siblings, 1 reply; 2+ messages in thread
From: David Lechner @ 2017-12-03 19:29 UTC (permalink / raw)
To: linux-arm-kernel; +Cc: David Lechner, Sekhar Nori, linux-kernel
This fixes the battery voltage monitoring gpio-hog settings.
When the gpio is low, it turns off the battery voltage to the ADC chip.
However, this needs to be on all of the time so that we can monitor
battery voltage.
Signed-off-by: David Lechner <david@lechnology.com>
---
arch/arm/boot/dts/da850-lego-ev3.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/da850-lego-ev3.dts b/arch/arm/boot/dts/da850-lego-ev3.dts
index aeb5fb0..9d15982 100644
--- a/arch/arm/boot/dts/da850-lego-ev3.dts
+++ b/arch/arm/boot/dts/da850-lego-ev3.dts
@@ -463,7 +463,7 @@
batt_volt_en {
gpio-hog;
gpios = <6 GPIO_ACTIVE_HIGH>;
- output-low;
+ output-high;
};
/* Don't impede Bluetooth clock signal */
--
2.7.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ARM: da850: Fix LEGO EV3 battery voltage gpio
2017-12-03 19:29 [PATCH] ARM: da850: Fix LEGO EV3 battery voltage gpio David Lechner
@ 2017-12-03 19:56 ` David Lechner
0 siblings, 0 replies; 2+ messages in thread
From: David Lechner @ 2017-12-03 19:56 UTC (permalink / raw)
To: linux-arm-kernel; +Cc: Sekhar Nori, linux-kernel
On 12/03/2017 01:29 PM, David Lechner wrote:
> This fixes the battery voltage monitoring gpio-hog settings.
>
> When the gpio is low, it turns off the battery voltage to the ADC chip.
> However, this needs to be on all of the time so that we can monitor
> battery voltage.
>
> Signed-off-by: David Lechner <david@lechnology.com>
> ---
Please disregard this patch. Apparently, pinmuxing on platform devices
is broken in the linux-davinci master branch, which led me astray.
^ permalink raw reply [flat|nested] 2+ messages in thread
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