linux-kernel - [PATCH stable 5.4 7/7] ARM: dts: gpio-ranges property is now required

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Date:   Tue, 25 Jan 2022 11:42:22 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     stable@...r.kernel.org
Cc:     Phil Elwell <phil@...pberrypi.com>,
        Stefan Wahren <stefan.wahren@...e.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Jan Kiszka <jan.kiszka@....de>,
        Linus Walleij <linus.walleij@...aro.org>,
        Olof Johansson <olof@...om.net>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com (maintainer:BROADCOM
        BCM281XX/BCM11XXX/BCM216XX ARM ARCHITE...),
        Eric Anholt <eric@...olt.net>,
        Stefan Wahren <wahrenst@....net>,
        Nicolas Saenz Julienne <nsaenz@...nel.org>,
        devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED
        DEVICE TREE BINDINGS), linux-kernel@...r.kernel.org (open list),
        linux-gpio@...r.kernel.org (open list:PIN CONTROL SUBSYSTEM),
        linux-rpi-kernel@...ts.infradead.org (moderated list:BROADCOM
        BCM2711/BCM2835 ARM ARCHITECTURE),
        linux-arm-kernel@...ts.infradead.org (moderated list:BROADCOM
        BCM2711/BCM2835 ARM ARCHITECTURE)
Subject: [PATCH stable 5.4 7/7] ARM: dts: gpio-ranges property is now required

From: Phil Elwell <phil@...pberrypi.com>

commit c8013355ead68dce152cf426686f8a5f80d88b40 upstream

Since [1], added in 5.7, the absence of a gpio-ranges property has
prevented GPIOs from being restored to inputs when released.
Add those properties for BCM283x and BCM2711 devices.

[1] commit 2ab73c6d8323 ("gpio: Support GPIO controllers without
    pin-ranges")

Link: https://lore.kernel.org/r/20220104170247.956760-1-linus.walleij@linaro.org
Fixes: 2ab73c6d8323 ("gpio: Support GPIO controllers without pin-ranges")
Fixes: 266423e60ea1 ("pinctrl: bcm2835: Change init order for gpio hogs")
Reported-by: Stefan Wahren <stefan.wahren@...e.com>
Reported-by: Florian Fainelli <f.fainelli@...il.com>
Reported-by: Jan Kiszka <jan.kiszka@....de>
Signed-off-by: Phil Elwell <phil@...pberrypi.com>
Acked-by: Florian Fainelli <f.fainelli@...il.com>
Reviewed-by: Linus Walleij <linus.walleij@...aro.org>
Link: https://lore.kernel.org/r/20211206092237.4105895-3-phil@raspberrypi.com
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
Acked-by: Florian Fainelli <f.fainelli@...il.com>
Signed-off-by: Olof Johansson <olof@...om.net>
[florian: Remove bcm2711.dtsi hunk which does not exist in 5.4]
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
 arch/arm/boot/dts/bcm283x.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi
index 50c64146d492..af81f386793c 100644
--- a/arch/arm/boot/dts/bcm283x.dtsi
+++ b/arch/arm/boot/dts/bcm283x.dtsi
@@ -183,6 +183,7 @@
 
 			interrupt-controller;
 			#interrupt-cells = <2>;
+			gpio-ranges = <&gpio 0 0 54>;
 
 			/* Defines pin muxing groups according to
 			 * BCM2835-ARM-Peripherals.pdf page 102.
-- 
2.25.1