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 6d651f314193724e024d099a2f7a9ae32fc26f5f..6921f8dc5ebbcf057e46044ac03a2715b48cce36 100644 (file)
--- 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";
 };