linux-kernel - [PATCH 3/6] ARM: dts: qcom: sdx75: Add QPIC BAM support

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Message-ID: <20250313130918.4238-4-quic_kaushalk@quicinc.com>
Date: Thu, 13 Mar 2025 18:39:15 +0530
From: Kaushal Kumar <quic_kaushalk@...cinc.com>
To: <vkoul@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>, <manivannan.sadhasivam@...aro.org>,
        <miquel.raynal@...tlin.com>, <richard@....at>, <vigneshr@...com>,
        <andersson@...nel.org>, <konradybcio@...nel.org>, <agross@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <dmaengine@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-mtd@...ts.infradead.org>,
        Kaushal Kumar <quic_kaushalk@...cinc.com>
Subject: [PATCH 3/6] ARM: dts: qcom: sdx75: Add QPIC BAM support

Add devicetree node to enable support for QPIC
BAM DMA controller on Qualcomm SDX75 platform.

Signed-off-by: Kaushal Kumar <quic_kaushalk@...cinc.com>
---
 arch/arm64/boot/dts/qcom/sdx75.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdx75.dtsi b/arch/arm64/boot/dts/qcom/sdx75.dtsi
index b0a8a0fe5f39..e3a0ee661c4a 100644
--- a/arch/arm64/boot/dts/qcom/sdx75.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdx75.dtsi
@@ -880,6 +880,20 @@
 			qcom,bcm-voters = <&apps_bcm_voter>;
 		};
 
+		qpic_bam: dma-controller@...c000 {
+			compatible = "qcom,bam-v1.7.0";
+			reg = <0x0 0x01c9c000 0x0 0x1c000>;
+			interrupts = <GIC_SPI 135 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&rpmhcc RPMH_QPIC_CLK>;
+			clock-names = "bam_clk";
+			#dma-cells = <1>;
+			qcom,ee = <0>;
+			qcom,controlled-remotely;
+			iommus = <&apps_smmu 0x100 0x3>;
+			dma-coherent;
+			status = "disabled";
+		};
+
 		tcsr_mutex: hwlock@...0000 {
 			compatible = "qcom,tcsr-mutex";
 			reg = <0x0 0x01f40000 0x0 0x40000>;
-- 
2.17.1