Hook up the SMMU for doing DMA over i2c. Some peripherals like touchscreens easily exceed 32-bytes per transfer, causing errors and lockups without this.
Signed-off-by: Caleb Connolly <[email protected]> --- Fixes i2c on the OnePlus 7, without this touching the screen with more than 4 fingers causes the device to lock up and reboot. --- arch/arm64/boot/dts/qcom/sm8150.dtsi | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/sm8150.dtsi b/arch/arm64/boot/dts/qcom/sm8150.dtsi index 03e05d98daf2..543417d74216 100644 --- a/arch/arm64/boot/dts/qcom/sm8150.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8150.dtsi @@ -583,6 +583,7 @@ qupv3_id_0: geniqup@8c0000 { clock-names = "m-ahb", "s-ahb"; clocks = <&gcc GCC_QUPV3_WRAP_0_M_AHB_CLK>, <&gcc GCC_QUPV3_WRAP_0_S_AHB_CLK>; + iommus = <&apps_smmu 0xc3 0x0>; #address-cells = <2>; #size-cells = <2>; ranges; @@ -595,6 +596,7 @@ qupv3_id_1: geniqup@ac0000 { clock-names = "m-ahb", "s-ahb"; clocks = <&gcc GCC_QUPV3_WRAP_1_M_AHB_CLK>, <&gcc GCC_QUPV3_WRAP_1_S_AHB_CLK>; + iommus = <&apps_smmu 0x603 0x0>; #address-cells = <2>; #size-cells = <2>; ranges; @@ -617,6 +619,7 @@ qupv3_id_2: geniqup@cc0000 { clock-names = "m-ahb", "s-ahb"; clocks = <&gcc GCC_QUPV3_WRAP_2_M_AHB_CLK>, <&gcc GCC_QUPV3_WRAP_2_S_AHB_CLK>; + iommus = <&apps_smmu 0x7a3 0x0>; #address-cells = <2>; #size-cells = <2>; ranges; -- 2.29.2
