[PATCH 1/3] arm64: dts: meson-axg: Make mmc host controller interrupts level-sensitive
Heiner Kallweit
hkallweit1 at gmail.com
Thu Feb 9 12:10:31 PST 2023
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: 221cf34bac54 ("ARM64: dts: meson-axg: enable the eMMC controller")
Reported-by: Peter Suti <peter.suti at streamunlimited.com>
Tested-by: Vyacheslav Bocharov <adeep at lexina.in>
Tested-by: Peter Suti <peter.suti at streamunlimited.com>
Cc: stable at vger.kernel.org
Signed-off-by: Heiner Kallweit <hkallweit1 at gmail.com>
---
arch/arm64/boot/dts/amlogic/meson-axg.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
index 1648e67af..417523dc4 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
@@ -1886,7 +1886,7 @@ apb: bus at ffe00000 {
sd_emmc_b: sd at 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>,
@@ -1898,7 +1898,7 @@ sd_emmc_b: sd at 5000 {
sd_emmc_c: mmc at 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>,
--
2.39.1
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