The I2C controllers in the A100 SoC are newer-generation hardware which includes an offload engine. Signify that by including the allwinner,sun8i-v536-i2c fallback compatible, as V536 is the first SoC with this generation of I2C controller. Signed-off-by: Samuel Holland <samuel@xxxxxxxxxxxx> --- arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi index f6d7d7f7fdab..548539c93ab0 100644 --- a/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun50i-a100.dtsi @@ -203,6 +203,7 @@ uart4: serial@5001000 { i2c0: i2c@5002000 { compatible = "allwinner,sun50i-a100-i2c", + "allwinner,sun8i-v536-i2c", "allwinner,sun6i-a31-i2c"; reg = <0x05002000 0x400>; interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>; @@ -215,6 +216,7 @@ i2c0: i2c@5002000 { i2c1: i2c@5002400 { compatible = "allwinner,sun50i-a100-i2c", + "allwinner,sun8i-v536-i2c", "allwinner,sun6i-a31-i2c"; reg = <0x05002400 0x400>; interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>; @@ -227,6 +229,7 @@ i2c1: i2c@5002400 { i2c2: i2c@5002800 { compatible = "allwinner,sun50i-a100-i2c", + "allwinner,sun8i-v536-i2c", "allwinner,sun6i-a31-i2c"; reg = <0x05002800 0x400>; interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>; @@ -239,6 +242,7 @@ i2c2: i2c@5002800 { i2c3: i2c@5002c00 { compatible = "allwinner,sun50i-a100-i2c", + "allwinner,sun8i-v536-i2c", "allwinner,sun6i-a31-i2c"; reg = <0x05002c00 0x400>; interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>; @@ -315,6 +319,7 @@ r_uart: serial@7080000 { r_i2c0: i2c@7081400 { compatible = "allwinner,sun50i-a100-i2c", + "allwinner,sun8i-v536-i2c", "allwinner,sun6i-a31-i2c"; reg = <0x07081400 0x400>; interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>; @@ -329,6 +334,7 @@ r_i2c0: i2c@7081400 { r_i2c1: i2c@7081800 { compatible = "allwinner,sun50i-a100-i2c", + "allwinner,sun8i-v536-i2c", "allwinner,sun6i-a31-i2c"; reg = <0x07081800 0x400>; interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>; -- 2.35.1