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    Subject[PATCH AUTOSEL 5.7 048/388] arm64: dts: armada-3720-turris-mox: forbid SDR104 on SDIO for FCC purposes
    Date
    From: Marek Behún <marek.behun@nic.cz>

    [ Upstream commit 7a2c36b039d2343cc29fec6102da839477b8dc60 ]

    Use sdhci-caps-mask to forbid SDR104 mode on the SDIO capable SDHCI
    controller. Without this the device cannot pass electromagnetic
    interference certifications.

    Fixes: 7109d817db2e ("arm64: dts: marvell: add DTS for Turris Mox")
    Signed-off-by: Marek Behún <marek.behun@nic.cz>
    Cc: Gregory CLEMENT <gregory.clement@bootlin.com>
    Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts | 2 ++
    1 file changed, 2 insertions(+)

    diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
    index bb42d1e6a4e9..47fee66c70cb 100644
    --- a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
    +++ b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
    @@ -179,6 +179,8 @@ &sdhci1 {
    marvell,pad-type = "sd";
    vqmmc-supply = <&vsdio_reg>;
    mmc-pwrseq = <&sdhci1_pwrseq>;
    + /* forbid SDR104 for FCC purposes */
    + sdhci-caps-mask = <0x2 0x0>;
    status = "okay";
    };

    --
    2.25.1
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