From: Caleb Connolly <caleb@connolly.tech>
To: caleb@connolly.tech, Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Rob Herring <robh+dt@kernel.org>
Cc: ~postmarketos/upstreaming@lists.sr.ht,
phone-devel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 2/3] arm64: dts: qcom: sm8150: add iommus to qups
Date: Wed, 10 Mar 2021 16:31:28 +0000 [thread overview]
Message-ID: <20210310163024.393578-3-caleb@connolly.tech> (raw)
In-Reply-To: <20210310163024.393578-1-caleb@connolly.tech>
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 <caleb@connolly.tech>
---
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
next prev parent reply other threads:[~2021-03-10 16:32 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210310163024.393578-1-caleb@connolly.tech>
2021-03-10 16:31 ` [PATCH 1/3] arm64: dts: qcom: sm8150: add other QUP nodes Caleb Connolly
2021-03-15 19:17 ` Bhupesh Sharma
2021-03-10 16:31 ` Caleb Connolly [this message]
2021-03-15 19:07 ` [PATCH 2/3] arm64: dts: qcom: sm8150: add iommus to qups Bhupesh Sharma
2021-03-16 6:15 ` Vinod Koul
2021-03-20 17:16 ` Caleb Connolly
2021-03-22 6:01 ` Vinod Koul
2021-03-10 16:31 ` [PATCH 3/3] arm64: dts: qcom: sm8150: add i2c nodes Caleb Connolly
2021-03-15 19:16 ` Bhupesh Sharma
2021-03-16 6:16 ` Vinod Koul
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