linux-kernel - [linux][PATCH 4/6] ARM: dts: at91: sam9x60: Add DMA bindigs for the flexcom nodes

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Date:   Wed, 7 Sep 2022 14:50:52 +0530
From:   Hari Prasath <Hari.PrasathGE@...rochip.com>
To:     <nicolas.ferre@...rochip.com>, <claudiu.beznea@...rochip.com>,
        <davem@...emloft.net>, <krzysztof.kozlowski+dt@...aro.org>,
        <alexandre.belloni@...tlin.com>, <arnd@...db.de>, <olof@...om.net>,
        <soc@...nel.org>, <manikandan.m@...rochip.com>, <michael@...le.cc>,
        <horatiu.vultur@...rochip.com>, <kavyasree.kotagiri@...rochip.com>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <durai.manickamkr@...rochip.com>
CC:     <Hari.PrasathGE@...rochip.com>
Subject: [linux][PATCH 4/6] ARM: dts: at91: sam9x60: Add DMA bindigs for the flexcom nodes

Add dma bindings for flexcom nodes in the soc dtsi file. Users those who
don't wish to use the DMA function for their flexcom functions can
overwrite the dma bindings in the board device tree file.

Signed-off-by: Manikandan M <manikandan.m@...rochip.com>
Signed-off-by: Hari Prasath <Hari.PrasathGE@...rochip.com>
---
 arch/arm/boot/dts/at91-sam9x60ek.dts |  3 +++
 arch/arm/boot/dts/sam9x60.dtsi       | 27 +++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/arch/arm/boot/dts/at91-sam9x60ek.dts b/arch/arm/boot/dts/at91-sam9x60ek.dts
index 9d9e50c77794..9ad528e1bdd2 100644
--- a/arch/arm/boot/dts/at91-sam9x60ek.dts
+++ b/arch/arm/boot/dts/at91-sam9x60ek.dts
@@ -213,6 +213,7 @@
 	i2c0: i2c@600 {
 		#address-cells = <1>;
 		#size-cells = <0>;
+		dmas = <0>, <0>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_flx0_default>;
 		i2c-analog-filter;
@@ -234,6 +235,7 @@
 	status = "disabled";
 
 	spi4: spi@400 {
+		dmas = <0>, <0>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_flx4_default>;
 		status = "disabled";
@@ -258,6 +260,7 @@
 	i2c6: i2c@600 {
 		#address-cells = <1>;
 		#size-cells = <0>;
+		dmas = <0>, <0>;
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_flx6_default>;
 		i2c-analog-filter;
diff --git a/arch/arm/boot/dts/sam9x60.dtsi b/arch/arm/boot/dts/sam9x60.dtsi
index 224b406c8384..feeabc53e0ec 100644
--- a/arch/arm/boot/dts/sam9x60.dtsi
+++ b/arch/arm/boot/dts/sam9x60.dtsi
@@ -176,6 +176,15 @@
 					interrupts = <13 IRQ_TYPE_LEVEL_HIGH 7>;
 					clocks = <&pmc PMC_TYPE_PERIPHERAL 13>;
 					clock-names = "spi_clk";
+					dmas = <&dma0
+						(AT91_XDMAC_DT_MEM_IF(0) |
+						 AT91_XDMAC_DT_PER_IF(1) |
+						 AT91_XDMAC_DT_PERID(8))>,
+						<&dma0
+						(AT91_XDMAC_DT_MEM_IF(0) |
+						 AT91_XDMAC_DT_PER_IF(1) |
+						 AT91_XDMAC_DT_PERID(9))>;
+					dma-names = "tx", "rx";
 					atmel,fifo-size = <16>;
 					status = "disabled";
 				};
@@ -415,6 +424,15 @@
 					reg = <0x600 0x200>;
 					interrupts = <9 IRQ_TYPE_LEVEL_HIGH 7>;
 					clocks = <&pmc PMC_TYPE_PERIPHERAL 9>;
+					dmas = <&dma0
+						(AT91_XDMAC_DT_MEM_IF(0) |
+						 AT91_XDMAC_DT_PER_IF(1) |
+						 AT91_XDMAC_DT_PERID(12))>,
+						<&dma0
+						(AT91_XDMAC_DT_MEM_IF(0) |
+						 AT91_XDMAC_DT_PER_IF(1) |
+						 AT91_XDMAC_DT_PERID(13))>;
+					dma-names = "tx", "rx";
 					atmel,fifo-size = <16>;
 					status = "disabled";
 				};
@@ -454,6 +472,15 @@
 					#address-cells = <1>;
 					#size-cells = <0>;
 					clocks = <&pmc PMC_TYPE_PERIPHERAL 5>;
+					dmas = <&dma0
+						(AT91_XDMAC_DT_MEM_IF(0) |
+						 AT91_XDMAC_DT_PER_IF(1) |
+						 AT91_XDMAC_DT_PERID(0))>,
+						<&dma0
+						(AT91_XDMAC_DT_MEM_IF(0) |
+						 AT91_XDMAC_DT_PER_IF(1) |
+						 AT91_XDMAC_DT_PERID(1))>;
+					dma-names = "tx", "rx";
 					atmel,fifo-size = <16>;
 					status = "disabled";
 				};
-- 
2.17.1