The patch below does not apply to the 4.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 0768e6e4934e239f1a7f8ba83150a7c46765bb3e Mon Sep 17 00:00:00 2001

From: Krzysztof Kozlowski krzk@kernel.org Date: Wed, 17 Jun 2020 12:23:05 +0200 Subject: [PATCH] dt-bindings: power: supply: bq25890: Document required interrupt

The driver requires interrupts (fails probe if it is not provided) so document this requirement in bindings.

Fixes: 4aeae9cb0dad ("power_supply: Add support for TI BQ25890 charger chip") Cc: stable@vger.kernel.org Signed-off-by: Krzysztof Kozlowski krzk@kernel.org Signed-off-by: Sebastian Reichel sebastian.reichel@collabora.com

diff --git a/Documentation/devicetree/bindings/power/supply/bq25890.txt b/Documentation/devicetree/bindings/power/supply/bq25890.txt index 51ecc756521f..3b4c69a7fa70 100644 --- a/Documentation/devicetree/bindings/power/supply/bq25890.txt +++ b/Documentation/devicetree/bindings/power/supply/bq25890.txt @@ -10,6 +10,7 @@ Required properties: * "ti,bq25895" * "ti,bq25896" - reg: integer, i2c address of the device. +- interrupts: interrupt line; - ti,battery-regulation-voltage: integer, maximum charging voltage (in uV); - ti,charge-current: integer, maximum charging current (in uA); - ti,termination-current: integer, charge will be terminated when current in @@ -39,6 +40,9 @@ bq25890 { compatible = "ti,bq25890"; reg = <0x6a>;

+ interrupt-parent = <&gpio1>; + interrupts = <16 IRQ_TYPE_EDGE_FALLING>; + ti,battery-regulation-voltage = <4200000>; ti,charge-current = <1000000>; ti,termination-current = <50000>;