Commit 5c868098 authored Feb 09, 2023 by Heiner Kallweit Committed by Greg Kroah-Hartman Feb 22, 2023

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

commit d182bcf300772d8b2e5f43e47fa0ebda2b767cc4 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: 221cf34b ("ARM64: dts: meson-axg: enable the eMMC controller")
Reported-by: Peter Suti <peter.suti@streamunlimited.com>
Tested-by: Vyacheslav Bocharov <adeep@lexina.in>
Tested-by: Peter Suti <peter.suti@streamunlimited.com>
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/c00655d3-02f8-6f5f-4239-ca2412420cad@gmail.com


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

parent 4b97dab7

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

+2 −2

Original line number	Diff line number	Diff line
		@@ -1705,7 +1705,7 @@
		sd_emmc_b: sd@5000 {
		compatible = "amlogic,meson-axg-mmc";
		reg = <0x0 0x5000 0x0 0x800>;
		interrupts = <GIC_SPI 217 IRQ_TYPE_EDGE_RISING>;
		interrupts = <GIC_SPI 217 IRQ_TYPE_LEVEL_HIGH>;
		status = "disabled";
		clocks = <&clkc CLKID_SD_EMMC_B>,
		<&clkc CLKID_SD_EMMC_B_CLK0>,
		@@ -1717,7 +1717,7 @@
		sd_emmc_c: mmc@7000 {
		compatible = "amlogic,meson-axg-mmc";
		reg = <0x0 0x7000 0x0 0x800>;
		interrupts = <GIC_SPI 218 IRQ_TYPE_EDGE_RISING>;
		interrupts = <GIC_SPI 218 IRQ_TYPE_LEVEL_HIGH>;
		status = "disabled";
		clocks = <&clkc CLKID_SD_EMMC_C>,
		<&clkc CLKID_SD_EMMC_C_CLK0>,