From: Bjorn Andersson <bjorn.andersson@linaro.org>
Date: Fri, 2 Nov 2018 21:45:32 +0000 (-0700)
Subject: arm64: dts: sdm845-mtp: Reserve reserved gpios
X-Git-Tag: v4.19.10~110
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=1eb8dd51887bbcdd08220828f693105e9e3459fe;p=users%2Fdwmw2%2Flinux.git

arm64: dts: sdm845-mtp: Reserve reserved gpios

[ Upstream commit 5f8d3ab136d0ccb59c4d628d8f85e0d8f2761d07 ]

With the introduction of commit 3edfb7bd76bd ("gpiolib: Show correct
direction from the beginning") the gpiolib will attempt to read the
direction of all pins, which triggers a read from protected register
regions.

The pins 0 through 3 and 81 through 84 are protected, so mark these as
reserved.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---

diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
index 6d651f3141937..6921f8dc5ebbc 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
@@ -31,6 +31,10 @@
 	status = "okay";
 };
 
+&tlmm {
+	gpio-reserved-ranges = <0 4>, <81 4>;
+};
+
 &uart9 {
 	status = "okay";
 };