linux-kernel - [PATCH 5.12 196/677] arm64: dts: qcom: sdm845: fix number of pins in gpio-ranges

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Message-Id: <20210512144843.765318767@linuxfoundation.org>
Date:   Wed, 12 May 2021 16:44:02 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Evan Green <evgreen@...omium.org>,
        Shawn Guo <shawn.guo@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.12 196/677] arm64: dts: qcom: sdm845: fix number of pins in gpio-ranges

From: Shawn Guo <shawn.guo@...aro.org>

[ Upstream commit 02058fc3839df65ff64de2a6b1c5de8c9fd705c1 ]

The last cell of 'gpio-ranges' should be number of GPIO pins, and in
case of qcom platform it should match msm_pinctrl_soc_data.ngpio rather
than msm_pinctrl_soc_data.ngpio - 1.

This fixes the problem that when the last GPIO pin in the range is
configured with the following call sequence, it always fails with
-EPROBE_DEFER.

    pinctrl_gpio_set_config()
        pinctrl_get_device_gpio_range()
            pinctrl_match_gpio_range()

Fixes: bc2c806293c6 ("arm64: dts: qcom: sdm845: Add gpio-ranges to TLMM node")
Cc: Evan Green <evgreen@...omium.org>
Signed-off-by: Shawn Guo <shawn.guo@...aro.org>
Link: https://lore.kernel.org/r/20210303033106.549-2-shawn.guo@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/qcom/sdm845.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 454f794af547..6a2ed02d383d 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -2382,7 +2382,7 @@
 			#gpio-cells = <2>;
 			interrupt-controller;
 			#interrupt-cells = <2>;
-			gpio-ranges = <&tlmm 0 0 150>;
+			gpio-ranges = <&tlmm 0 0 151>;
 			wakeup-parent = <&pdc_intc>;
 
 			cci0_default: cci0-default {
-- 
2.30.2