linux-kernel - [PATCH 2/2] arm64: dts: qcom: sdm845: enable dma for spi

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Message-Id: <20220222041951.1185186-2-vkoul@kernel.org>
Date:   Tue, 22 Feb 2022 09:49:51 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, Vinod Koul <vkoul@...nel.org>,
        Andy Gross <agross@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] arm64: dts: qcom: sdm845: enable dma for spi

Add dmas property for spi@...000 and pinconf setting so that we can use
dma for this spi device. Also, add iommu properties for qup and spi.

Signed-off-by: Vinod Koul <vkoul@...nel.org>
---
 arch/arm64/boot/dts/qcom/sdm845-db845c.dts |  4 ++++
 arch/arm64/boot/dts/qcom/sdm845.dtsi       | 11 +++++++++++
 2 files changed, 15 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
index 13f80a0b6faa..119b15476a71 100644
--- a/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
+++ b/arch/arm64/boot/dts/qcom/sdm845-db845c.dts
@@ -425,6 +425,10 @@ &gmu {
 	status = "okay";
 };
 
+&gpi_dma0 {
+	status = "okay";
+};
+
 &gpu {
 	status = "okay";
 	zap-shader {
diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index e8b50f3bf1bf..231f3020123b 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -12,6 +12,7 @@
 #include <dt-bindings/clock/qcom,lpass-sdm845.h>
 #include <dt-bindings/clock/qcom,rpmh.h>
 #include <dt-bindings/clock/qcom,videocc-sdm845.h>
+#include <dt-bindings/dma/qcom-gpi.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/interconnect/qcom,osm-l3.h>
 #include <dt-bindings/interconnect/qcom,sdm845.h>
@@ -1194,6 +1195,9 @@ spi0: spi@...000 {
 				interconnects = <&aggre1_noc MASTER_QUP_1 0 &config_noc SLAVE_BLSP_1 0>,
 						<&gladiator_noc MASTER_APPSS_PROC 0 &config_noc SLAVE_BLSP_1 0>;
 				interconnect-names = "qup-core", "qup-config";
+				dmas = <&gpi_dma0 0 0 QCOM_GPI_SPI>,
+				       <&gpi_dma0 1 0 QCOM_GPI_SPI>;
+				dma-names = "tx", "rx";
 				status = "disabled";
 			};
 
@@ -2633,6 +2637,13 @@ pinmux {
 					       "gpio2", "gpio3";
 					function = "qup0";
 				};
+
+				config {
+					pins = "gpio0", "gpio1",
+					       "gpio2", "gpio3";
+					drive-strength = <6>;
+					bias-disable;
+				};
 			};
 
 			qup_spi1_default: qup-spi1-default {
-- 
2.34.1