Re: [PATCH v2] arm64: dts: amlogic: Make mmc host controller interrupts level-sensitive

[Neil Armstrong <neil.armstrong@linaro.org>]

Hi,

On 26/01/2023 15:03, Heiner Kallweit wrote:
> 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.

Thanks, I applied it in for-next so it runs on the CI tests.

> 
> [0] https://www.spinics.net/lists/linux-mmc/msg73991.html
> 
> Fixes: 1499218c80c9 ("arm64: dts: move common G12A & G12B modes to meson-g12-common.dtsi")

I think we should find a better Fixes or perhaps split in 3 so it targets the
right commit adding the nodes for each family.

If the test doesn't report any breakage, I'll probably ask you that.

Neil


> Reported-by: Peter Suti <peter.suti@streamunlimited.com>
> Tested-by: Peter Suti <peter.suti@streamunlimited.com>
> Cc: stable@vger.kernel.org
> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
> ---
> v2:
> - apply the fix also to meson-axg
> - apply the fix to all host controller instances
> ---
>   arch/arm64/boot/dts/amlogic/meson-axg.dtsi        | 4 ++--
>   arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 6 +++---
>   arch/arm64/boot/dts/amlogic/meson-gx.dtsi         | 6 +++---
>   3 files changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
> index ed895fb32..a6a3095de 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@ffe00000 {
>   			sd_emmc_b: mmc@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: mmc@5000 {
>   			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>,
> diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
> index 6d7272b2c..13fdaba21 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
> @@ -2324,7 +2324,7 @@ uart_A: serial@24000 {
>   		sd_emmc_a: mmc@ffe03000 {
>   			compatible = "amlogic,meson-axg-mmc";
>   			reg = <0x0 0xffe03000 0x0 0x800>;
> -			interrupts = <GIC_SPI 189 IRQ_TYPE_EDGE_RISING>;
> +			interrupts = <GIC_SPI 189 IRQ_TYPE_LEVEL_HIGH>;
>   			status = "disabled";
>   			clocks = <&clkc CLKID_SD_EMMC_A>,
>   				 <&clkc CLKID_SD_EMMC_A_CLK0>,
> @@ -2336,7 +2336,7 @@ sd_emmc_a: mmc@ffe03000 {
>   		sd_emmc_b: mmc@ffe05000 {
>   			compatible = "amlogic,meson-axg-mmc";
>   			reg = <0x0 0xffe05000 0x0 0x800>;
> -			interrupts = <GIC_SPI 190 IRQ_TYPE_EDGE_RISING>;
> +			interrupts = <GIC_SPI 190 IRQ_TYPE_LEVEL_HIGH>;
>   			status = "disabled";
>   			clocks = <&clkc CLKID_SD_EMMC_B>,
>   				 <&clkc CLKID_SD_EMMC_B_CLK0>,
> @@ -2348,7 +2348,7 @@ sd_emmc_b: mmc@ffe05000 {
>   		sd_emmc_c: mmc@ffe07000 {
>   			compatible = "amlogic,meson-axg-mmc";
>   			reg = <0x0 0xffe07000 0x0 0x800>;
> -			interrupts = <GIC_SPI 191 IRQ_TYPE_EDGE_RISING>;
> +			interrupts = <GIC_SPI 191 IRQ_TYPE_LEVEL_HIGH>;
>   			status = "disabled";
>   			clocks = <&clkc CLKID_SD_EMMC_C>,
>   				 <&clkc CLKID_SD_EMMC_C_CLK0>,
> diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
> index e3c12e0be..5eed15035 100644
> --- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
> +++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
> @@ -603,21 +603,21 @@ apb: apb@d0000000 {
>   			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";
>   			};
>   		};