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From:   Luca Weiss <luca.weiss@fairphone.com>
To:     linux-arm-msm@vger.kernel.org
Cc:     ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org,
        Luca Weiss <luca.weiss@fairphone.com>,
        Andy Gross <agross@kernel.org>,
        Bjorn Andersson <bjorn.andersson@linaro.org>,
        Konrad Dybcio <konrad.dybcio@somainline.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 3/3] arm64: dts: qcom: sm6350: Add GPI DMA nodes
Date:   Fri, 12 Aug 2022 10:27:21 +0200
Message-Id: <20220812082721.1125759-4-luca.weiss@fairphone.com>
In-Reply-To: <20220812082721.1125759-1-luca.weiss@fairphone.com>
References: <20220812082721.1125759-1-luca.weiss@fairphone.com>
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Add nodes for the gpi_dma0 and gpi_dma1 which are (optionally) used for
various i2c busses based on the qup firmware configuration.

Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
---
 arch/arm64/boot/dts/qcom/sm6350.dtsi | 59 ++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sm6350.dtsi b/arch/arm64/boot/dts/qcom/sm6350.dtsi
index 76f14d54ae1c..5de6eb26f904 100644
--- a/arch/arm64/boot/dts/qcom/sm6350.dtsi
+++ b/arch/arm64/boot/dts/qcom/sm6350.dtsi
@@ -5,6 +5,7 @@
 
 #include <dt-bindings/clock/qcom,gcc-sm6350.h>
 #include <dt-bindings/clock/qcom,rpmh.h>
+#include <dt-bindings/dma/qcom-gpi.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/mailbox/qcom-ipcc.h>
@@ -517,6 +518,26 @@ opp-384000000 {
 			};
 		};
 
+		gpi_dma0: dma-controller@800000 {
+			compatible = "qcom,sm6350-gpi-dma";
+			reg = <0 0x00800000 0 0x60000>;
+			interrupts = <GIC_SPI 244 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 245 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 246 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 247 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 248 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 249 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 250 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 251 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 252 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 253 IRQ_TYPE_LEVEL_HIGH>;
+			dma-channels = <10>;
+			dma-channel-mask = <0x1f>;
+			iommus = <&apps_smmu 0x56 0x0>;
+			#dma-cells = <3>;
+			status = "disabled";
+		};
+
 		qupv3_id_0: geniqup@8c0000 {
 			compatible = "qcom,geni-se-qup";
 			reg = <0x0 0x8c0000 0x0 0x2000>;
@@ -537,6 +558,9 @@ i2c0: i2c@880000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_i2c0_default>;
 				interrupts = <GIC_SPI 601 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&gpi_dma0 0 0 QCOM_GPI_I2C>,
+				       <&gpi_dma0 1 0 QCOM_GPI_I2C>;
+				dma-names = "tx", "rx";
 				#address-cells = <1>;
 				#size-cells = <0>;
 				status = "disabled";
@@ -550,12 +574,35 @@ i2c2: i2c@888000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_i2c2_default>;
 				interrupts = <GIC_SPI 603 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&gpi_dma0 0 2 QCOM_GPI_I2C>,
+				       <&gpi_dma0 1 2 QCOM_GPI_I2C>;
+				dma-names = "tx", "rx";
 				#address-cells = <1>;
 				#size-cells = <0>;
 				status = "disabled";
 			};
 		};
 
+		gpi_dma1: dma-controller@900000 {
+			compatible = "qcom,sm6350-gpi-dma";
+			reg = <0 0x00900000 0 0x60000>;
+			interrupts = <GIC_SPI 645 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 646 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 647 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 648 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 649 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 650 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 651 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 652 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 653 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 654 IRQ_TYPE_LEVEL_HIGH>;
+			dma-channels = <10>;
+			dma-channel-mask = <0x3f>;
+			iommus = <&apps_smmu 0x4d6 0x0>;
+			#dma-cells = <3>;
+			status = "disabled";
+		};
+
 		qupv3_id_1: geniqup@9c0000 {
 			compatible = "qcom,geni-se-qup";
 			reg = <0x0 0x9c0000 0x0 0x2000>;
@@ -576,6 +623,9 @@ i2c6: i2c@980000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_i2c6_default>;
 				interrupts = <GIC_SPI 353 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&gpi_dma1 0 0 QCOM_GPI_I2C>,
+				       <&gpi_dma1 1 0 QCOM_GPI_I2C>;
+				dma-names = "tx", "rx";
 				#address-cells = <1>;
 				#size-cells = <0>;
 				status = "disabled";
@@ -589,6 +639,9 @@ i2c7: i2c@984000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_i2c7_default>;
 				interrupts = <GIC_SPI 354 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&gpi_dma1 0 1 QCOM_GPI_I2C>,
+				       <&gpi_dma1 1 1 QCOM_GPI_I2C>;
+				dma-names = "tx", "rx";
 				#address-cells = <1>;
 				#size-cells = <0>;
 				status = "disabled";
@@ -602,6 +655,9 @@ i2c8: i2c@988000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_i2c8_default>;
 				interrupts = <GIC_SPI 355 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&gpi_dma1 0 2 QCOM_GPI_I2C>,
+				       <&gpi_dma1 1 2 QCOM_GPI_I2C>;
+				dma-names = "tx", "rx";
 				#address-cells = <1>;
 				#size-cells = <0>;
 				status = "disabled";
@@ -626,6 +682,9 @@ i2c10: i2c@990000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&qup_i2c10_default>;
 				interrupts = <GIC_SPI 357 IRQ_TYPE_LEVEL_HIGH>;
+				dmas = <&gpi_dma1 0 4 QCOM_GPI_I2C>,
+				       <&gpi_dma1 1 4 QCOM_GPI_I2C>;
+				dma-names = "tx", "rx";
 				#address-cells = <1>;
 				#size-cells = <0>;
 				status = "disabled";
-- 
2.37.1