From: Maulik Shah <maulik.shah@oss.qualcomm.com>
To: Thomas Gleixner <tglx@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Radu Rendec <radu@rendec.net>
Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org,
Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>,
Maulik Shah <maulik.shah@oss.qualcomm.com>
Subject: [PATCH v4 3/3] arm64: dts: qcom: purwa: Drop the Hamoa workaround for PDC
Date: Thu, 06 Aug 2026 14:26:29 +0530 [thread overview]
Message-ID: <20260806-purwa-pdc-v4-3-62467f4b4ddc@oss.qualcomm.com> (raw)
In-Reply-To: <20260806-purwa-pdc-v4-0-62467f4b4ddc@oss.qualcomm.com>
X1P42100 (Purwa) shares the X1E80100 (Hamoa) PDC device, but the hardware
register bug addressed in commit e9a48ea4d90b ("irqchip/qcom-pdc:
Workaround hardware register bug on X1E80100") is already fixed in
X1P42100 silicon.
X1E80100 compatible forces the software workaround. Use the X1P42100
specific compatible string for the PDC node to remove the workaround.
Fixes: f08edb529916 ("arm64: dts: qcom: Add X1P42100 SoC and CRD")
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Maulik Shah <maulik.shah@oss.qualcomm.com>
---
arch/arm64/boot/dts/qcom/purwa.dtsi | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/purwa.dtsi b/arch/arm64/boot/dts/qcom/purwa.dtsi
index c698e6cb2543..4348dd3d1dc5 100644
--- a/arch/arm64/boot/dts/qcom/purwa.dtsi
+++ b/arch/arm64/boot/dts/qcom/purwa.dtsi
@@ -224,6 +224,11 @@ &pcie6a_phy {
compatible = "qcom,x1p42100-qmp-gen4x4-pcie-phy";
};
+/* X1P42100 PDC is same as X1E80100, but without hardware register bug */
+&pdc {
+ compatible = "qcom,x1p42100-pdc", "qcom,pdc";
+};
+
&qfprom {
gpu_speed_bin: gpu-speed-bin@119 {
reg = <0x119 0x2>;
--
2.43.0
next prev parent reply other threads:[~2026-08-06 8:56 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-06 8:56 [PATCH v4 0/3] purwa: Drop the Hamoa PDC workaround from purwa Maulik Shah
2026-08-06 8:56 ` [PATCH v4 1/3] dt-bindings: interrupt-controller: qcom,pdc: Document Purwa PDC Maulik Shah
2026-08-06 8:56 ` [PATCH v4 2/3] irqchip/qcom-pdc: Add purwa compatible for PDC secondary mode Maulik Shah
2026-08-06 9:30 ` Dmitry Baryshkov
2026-08-12 10:33 ` Abel Vesa
2026-08-19 10:00 ` Konrad Dybcio
2026-08-06 8:56 ` Maulik Shah [this message]
2026-08-11 12:58 ` [PATCH v4 3/3] arm64: dts: qcom: purwa: Drop the Hamoa workaround for PDC Dmitry Baryshkov
2026-08-12 10:33 ` Abel Vesa
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