Re: [PATCH] arm64: dts: ensure backward compatibility of the AP807 Xenon
From: Marcin Wojtas <hidden>
Date: 2021-06-17 13:50:10
Also in:
linux-arm-kernel, lkml
czw., 17 cze 2021 o 15:14 Gregory CLEMENT [off-list ref] napisał(a):
Hi Marcin,quoted
A recent switch to a dedicated AP807 compatible string for the Xenon SD/MMC controller result in the driver not being probed when using updated device tree with the older kernel revisions. It may also be problematic for other OSs/firmware that use Linux device tree sources as a reference. Resolve the problem with backward compatibility by restoring a previous compatible string as secondary one. Signed-off-by: Marcin Wojtas <redacted>Applied on mvebu/dt64
Thank you! Marcin
quoted
--- arch/arm64/boot/dts/marvell/armada-ap807.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)diff --git a/arch/arm64/boot/dts/marvell/armada-ap807.dtsi b/arch/arm64/boot/dts/marvell/armada-ap807.dtsi index d9bbbfa4b4eb..4a23f65d475f 100644 --- a/arch/arm64/boot/dts/marvell/armada-ap807.dtsi +++ b/arch/arm64/boot/dts/marvell/armada-ap807.dtsi@@ -29,6 +29,7 @@ cpu_clk: clock-cpu { }; &ap_sdhci0 { - compatible = "marvell,armada-ap807-sdhci"; + compatible = "marvell,armada-ap807-sdhci", + "marvell,armada-ap806-sdhci"; /* Backward compatibility */ }; --2.29.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel-- Gregory Clement, Bootlin Embedded Linux and Kernel engineering http://bootlin.com