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    Subject[PATCH 4.19 034/142] arm64: dts: sdm845-mtp: Reserve reserved gpios
    Date
    4.19-stable review patch.  If anyone has any objections, please let me know.

    ------------------

    [ 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>
    ---
    arch/arm64/boot/dts/qcom/sdm845-mtp.dts | 4 ++++
    1 file changed, 4 insertions(+)

    diff --git a/arch/arm64/boot/dts/qcom/sdm845-mtp.dts b/arch/arm64/boot/dts/qcom/sdm845-mtp.dts
    index 6d651f314193..6921f8dc5ebb 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";
    };
    --
    2.19.1


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