Commit f0302e98 authored Feb 09, 2023 by Heiner Kallweit Committed by Greg Kroah-Hartman Feb 22, 2023

arm64: dts: meson-gx: Make mmc host controller interrupts level-sensitive

commit 66e45351f7d6798751f98001d1fcd572024d87f0 upstream.

The usage of edge-triggered interrupts lead to lost interrupts under load,
see [0]. This was confirmed to be fixed by using level-triggered
interrupts.
The report was about SDIO. However, as the host controller is the same
for SD and MMC, apply the change to all mmc controller instances.

[0] https://www.spinics.net/lists/linux-mmc/msg73991.html



Fixes: ef8d2ffe ("ARM64: dts: meson-gxbb: add MMC support")
Cc: stable@vger.kernel.org
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/76e042e0-a610-5ed5-209f-c4d7f879df44@gmail.com


Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent 1509e939

arch/arm64/boot/dts/amlogic/meson-gx.dtsi

+3 −3

Original line number	Diff line number	Diff line
		@@ -528,21 +528,21 @@
		sd_emmc_a: mmc@70000 {
		compatible = "amlogic,meson-gx-mmc", "amlogic,meson-gxbb-mmc";
		reg = <0x0 0x70000 0x0 0x800>;
		interrupts = <GIC_SPI 216 IRQ_TYPE_EDGE_RISING>;
		interrupts = <GIC_SPI 216 IRQ_TYPE_LEVEL_HIGH>;
		status = "disabled";
		};

		sd_emmc_b: mmc@72000 {
		compatible = "amlogic,meson-gx-mmc", "amlogic,meson-gxbb-mmc";
		reg = <0x0 0x72000 0x0 0x800>;
		interrupts = <GIC_SPI 217 IRQ_TYPE_EDGE_RISING>;
		interrupts = <GIC_SPI 217 IRQ_TYPE_LEVEL_HIGH>;
		status = "disabled";
		};

		sd_emmc_c: mmc@74000 {
		compatible = "amlogic,meson-gx-mmc", "amlogic,meson-gxbb-mmc";
		reg = <0x0 0x74000 0x0 0x800>;
		interrupts = <GIC_SPI 218 IRQ_TYPE_EDGE_RISING>;
		interrupts = <GIC_SPI 218 IRQ_TYPE_LEVEL_HIGH>;
		status = "disabled";
		};
		};