From 96bd0de3915f6baabc42bad12069a511dded12bd Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Wed, 20 Mar 2024 08:55:52 +0100 Subject: [PATCH] arm64: dts: qcom: sc7180-trogdor: mark bluetooth address as broken commit e12e28009e584c8f8363439f6a928ec86278a106 upstream. Several Qualcomm Bluetooth controllers lack persistent storage for the device address and instead one can be provided by the boot firmware using the 'local-bd-address' devicetree property. The Bluetooth bindings clearly states that the address should be specified in little-endian order, but due to a long-standing bug in the Qualcomm driver which reversed the address some boot firmware has been providing the address in big-endian order instead. The boot firmware in SC7180 Trogdor Chromebooks is known to be affected so mark the 'local-bd-address' property as broken to maintain backwards compatibility with older firmware when fixing the underlying driver bug. Note that ChromeOS always updates the kernel and devicetree in lockstep so that there is no need to handle backwards compatibility with older devicetrees. Fixes: 7ec3e67307f8 ("arm64: dts: qcom: sc7180-trogdor: add initial trogdor and lazor dt") Cc: stable@vger.kernel.org # 5.10 Cc: Rob Clark Reviewed-by: Douglas Anderson Signed-off-by: Johan Hovold Acked-by: Bjorn Andersson Reviewed-by: Bjorn Andersson Signed-off-by: Luiz Augusto von Dentz Signed-off-by: Greg Kroah-Hartman --- arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi index a9d36ac6cb90..a88798b80921 100644 --- a/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi +++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor.dtsi @@ -911,6 +911,8 @@ ap_spi_fp: &spi10 { vddrf-supply = <&pp1300_l2c>; vddch0-supply = <&pp3300_l10c>; max-speed = <3200000>; + + qcom,local-bd-address-broken; }; };