[PATCH 1/9] ARM: dts: add generic DMA DT binding for tegra apbdma

From: Richard Zhao
Date: Wed Jul 24 2013 - 00:13:26 EST

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All Tegra device drivers will soon move to generic DMA device tree bindings.
Add the required properties to the Tegra DT files to support that. The legacy
property nvidia,dma-request-selector will be removed after all drivers have
been converted, in order to maintain bisectability.

Changes:
- Add '#dma-cells' for apbdma nodes
- And properties 'dmas' and 'dma-names' for apbdma client nodes
- update apbdma DT binding doc

Signed-off-by: Richard Zhao <rizhao@xxxxxxxxxx>
---
.../devicetree/bindings/dma/tegra20-apbdma.txt | 1 +
arch/arm/boot/dts/tegra114.dtsi | 27 ++++++++++++++++++++++
arch/arm/boot/dts/tegra20.dtsi | 27 ++++++++++++++++++++++
arch/arm/boot/dts/tegra30.dtsi | 25 ++++++++++++++++++++
4 files changed, 80 insertions(+)

diff --git a/Documentation/devicetree/bindings/dma/tegra20-apbdma.txt b/Documentation/devicetree/bindings/dma/tegra20-apbdma.txt
index 90fa7da..e4fc695 100644
--- a/Documentation/devicetree/bindings/dma/tegra20-apbdma.txt
+++ b/Documentation/devicetree/bindings/dma/tegra20-apbdma.txt
@@ -5,6 +5,7 @@ Required properties:
- reg: Should contain DMA registers location and length. This shuld include
all of the per-channel registers.
- interrupts: Should contain all of the per-channel DMA interrupts.
+- #dma-cells: Must be <1>, which specifies the dma request.

Examples:

diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi
index abf6c40..b133c62 100644
--- a/arch/arm/boot/dts/tegra114.dtsi
+++ b/arch/arm/boot/dts/tegra114.dtsi
@@ -81,6 +81,7 @@
<GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&tegra_car TEGRA114_CLK_APBDMA>;
+ #dma-cells = <1>;
};

ahb: ahb {
@@ -125,6 +126,8 @@
reg-shift = <2>;
interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 8>;
+ dmas = <&apbdma 8>;
+ dma-names = "rx-tx";
status = "disabled";
clocks = <&tegra_car TEGRA114_CLK_UARTA>;
};
@@ -135,6 +138,8 @@
reg-shift = <2>;
interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 9>;
+ dmas = <&apbdma 9>;
+ dma-names = "rx-tx";
status = "disabled";
clocks = <&tegra_car TEGRA114_CLK_UARTB>;
};
@@ -145,6 +150,8 @@
reg-shift = <2>;
interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 10>;
+ dmas = <&apbdma 10>;
+ dma-names = "rx-tx";
status = "disabled";
clocks = <&tegra_car TEGRA114_CLK_UARTC>;
};
@@ -155,6 +162,8 @@
reg-shift = <2>;
interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 19>;
+ dmas = <&apbdma 19>;
+ dma-names = "rx-tx";
status = "disabled";
clocks = <&tegra_car TEGRA114_CLK_UARTD>;
};
@@ -227,6 +236,8 @@
reg = <0x7000d400 0x200>;
interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 15>;
+ dmas = <&apbdma 15>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA114_CLK_SBC1>;
@@ -239,6 +250,8 @@
reg = <0x7000d600 0x200>;
interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 16>;
+ dmas = <&apbdma 16>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA114_CLK_SBC2>;
@@ -251,6 +264,8 @@
reg = <0x7000d800 0x200>;
interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 17>;
+ dmas = <&apbdma 17>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA114_CLK_SBC3>;
@@ -263,6 +278,8 @@
reg = <0x7000da00 0x200>;
interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 18>;
+ dmas = <&apbdma 18>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA114_CLK_SBC4>;
@@ -275,6 +292,8 @@
reg = <0x7000dc00 0x200>;
interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 27>;
+ dmas = <&apbdma 27>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA114_CLK_SBC5>;
@@ -287,6 +306,8 @@
reg = <0x7000de00 0x200>;
interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 28>;
+ dmas = <&apbdma 28>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA114_CLK_SBC6>;
@@ -337,6 +358,12 @@
<&apbdma 3>, <&apbdma 4>, <&apbdma 6>, <&apbdma 7>,
<&apbdma 12>, <&apbdma 13>, <&apbdma 14>,
<&apbdma 29>;
+ dmas = <&apbdma 1>, <&apbdma 2>, <&apbdma 3>, <&apbdma 4>,
+ <&apbdma 6>, <&apbdma 7>, <&apbdma 12>, <&apbdma 13>,
+ <&apbdma 14>, <&apbdma 29>;
+ dma-names = "channel0", "channel1", "channel2", "channel3",
+ "channel4", "channel5", "channel6", "channel7",
+ "channel8", "channel9";
clocks = <&tegra_car TEGRA114_CLK_D_AUDIO>,
<&tegra_car TEGRA114_CLK_APBIF>,
<&tegra_car TEGRA114_CLK_I2S0>,
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 9653fd8..0fe7f37 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -182,6 +182,7 @@
<GIC_SPI 118 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 119 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&tegra_car TEGRA20_CLK_APBDMA>;
+ #dma-cells = <1>;
};

ahb {
@@ -223,6 +224,8 @@
reg = <0x70002000 0x200>;
interrupts = <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 12>;
+ dmas = <&apbdma 12>;
+ dma-names = "rx-tx";
clocks = <&tegra_car TEGRA20_CLK_AC97>;
status = "disabled";
};
@@ -232,6 +235,8 @@
reg = <0x70002800 0x200>;
interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 2>;
+ dmas = <&apbdma 2>;
+ dma-names = "rx-tx";
clocks = <&tegra_car TEGRA20_CLK_I2S1>;
status = "disabled";
};
@@ -241,6 +246,8 @@
reg = <0x70002a00 0x200>;
interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 1>;
+ dmas = <&apbdma 1>;
+ dma-names = "rx-tx";
clocks = <&tegra_car TEGRA20_CLK_I2S2>;
status = "disabled";
};
@@ -258,6 +265,8 @@
reg-shift = <2>;
interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 8>;
+ dmas = <&apbdma 8>;
+ dma-names = "rx-tx";
clocks = <&tegra_car TEGRA20_CLK_UARTA>;
status = "disabled";
};
@@ -268,6 +277,8 @@
reg-shift = <2>;
interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 9>;
+ dmas = <&apbdma 9>;
+ dma-names = "rx-tx";
clocks = <&tegra_car TEGRA20_CLK_UARTB>;
status = "disabled";
};
@@ -278,6 +289,8 @@
reg-shift = <2>;
interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 10>;
+ dmas = <&apbdma 10>;
+ dma-names = "rx-tx";
clocks = <&tegra_car TEGRA20_CLK_UARTC>;
status = "disabled";
};
@@ -288,6 +301,8 @@
reg-shift = <2>;
interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 19>;
+ dmas = <&apbdma 19>;
+ dma-names = "rx-tx";
clocks = <&tegra_car TEGRA20_CLK_UARTD>;
status = "disabled";
};
@@ -298,6 +313,8 @@
reg-shift = <2>;
interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 20>;
+ dmas = <&apbdma 20>;
+ dma-names = "rx-tx";
clocks = <&tegra_car TEGRA20_CLK_UARTE>;
status = "disabled";
};
@@ -334,6 +351,8 @@
reg = <0x7000c380 0x80>;
interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 11>;
+ dmas = <&apbdma 11>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA20_CLK_SPI>;
@@ -381,6 +400,8 @@
reg = <0x7000d400 0x200>;
interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 15>;
+ dmas = <&apbdma 15>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA20_CLK_SBC1>;
@@ -392,6 +413,8 @@
reg = <0x7000d600 0x200>;
interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 16>;
+ dmas = <&apbdma 16>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA20_CLK_SBC2>;
@@ -403,6 +426,8 @@
reg = <0x7000d800 0x200>;
interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 17>;
+ dmas = <&apbdma 17>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA20_CLK_SBC3>;
@@ -414,6 +439,8 @@
reg = <0x7000da00 0x200>;
interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 18>;
+ dmas = <&apbdma 18>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA20_CLK_SBC4>;
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index d8783f0..c266316 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -201,6 +201,7 @@
<GIC_SPI 142 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&tegra_car TEGRA30_CLK_APBDMA>;
+ #dma-cells = <1>;
};

ahb: ahb {
@@ -245,6 +246,8 @@
reg-shift = <2>;
interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 8>;
+ dmas = <&apbdma 8>;
+ dma-names = "rx-tx";
clocks = <&tegra_car TEGRA30_CLK_UARTA>;
status = "disabled";
};
@@ -255,6 +258,8 @@
reg-shift = <2>;
interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 9>;
+ dmas = <&apbdma 9>;
+ dma-names = "rx-tx";
clocks = <&tegra_car TEGRA30_CLK_UARTB>;
status = "disabled";
};
@@ -265,6 +270,8 @@
reg-shift = <2>;
interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 10>;
+ dmas = <&apbdma 10>;
+ dma-names = "rx-tx";
clocks = <&tegra_car TEGRA30_CLK_UARTC>;
status = "disabled";
};
@@ -275,6 +282,8 @@
reg-shift = <2>;
interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 19>;
+ dmas = <&apbdma 19>;
+ dma-names = "rx-tx";
clocks = <&tegra_car TEGRA30_CLK_UARTD>;
status = "disabled";
};
@@ -285,6 +294,8 @@
reg-shift = <2>;
interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 20>;
+ dmas = <&apbdma 20>;
+ dma-names = "rx-tx";
clocks = <&tegra_car TEGRA30_CLK_UARTE>;
status = "disabled";
};
@@ -369,6 +380,8 @@
reg = <0x7000d400 0x200>;
interrupts = <GIC_SPI 59 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 15>;
+ dmas = <&apbdma 15>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA30_CLK_SBC1>;
@@ -380,6 +393,8 @@
reg = <0x7000d600 0x200>;
interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 16>;
+ dmas = <&apbdma 16>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA30_CLK_SBC2>;
@@ -391,6 +406,8 @@
reg = <0x7000d800 0x200>;
interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 17>;
+ dmas = <&apbdma 17>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA30_CLK_SBC3>;
@@ -402,6 +419,8 @@
reg = <0x7000da00 0x200>;
interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 18>;
+ dmas = <&apbdma 18>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA30_CLK_SBC4>;
@@ -413,6 +432,8 @@
reg = <0x7000dc00 0x200>;
interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 27>;
+ dmas = <&apbdma 27>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA30_CLK_SBC5>;
@@ -424,6 +445,8 @@
reg = <0x7000de00 0x200>;
interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 28>;
+ dmas = <&apbdma 28>;
+ dma-names = "rx-tx";
#address-cells = <1>;
#size-cells = <0>;
clocks = <&tegra_car TEGRA30_CLK_SBC6>;
@@ -470,6 +493,8 @@
0x70080200 0x100>;
interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
nvidia,dma-request-selector = <&apbdma 1>;
+ dmas = <&apbdma 1>, <&apbdma 2>, <&apbdma 3>, <&apbdma 4>;
+ dma-names = "channel0", "channel1", "channel2", "channel3";
clocks = <&tegra_car TEGRA30_CLK_D_AUDIO>,
<&tegra_car TEGRA30_CLK_APBIF>,
<&tegra_car TEGRA30_CLK_I2S0>,
--
1.8.1.5

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Next message: Kukjin Kim: "RE: [PATCH 04/18] MAINTAINERS: ARM: S3C2410: Update patterns"
Previous message: Richard Zhao: "[PATCH 3/9] spi: tegra114: move to generic dma DT binding"
In reply to: Richard Zhao: "[PATCH 3/9] spi: tegra114: move to generic dma DT binding"
Next in thread: Stephen Warren: "Re: [PATCH 0/9] ARM: tegra: move to generic DMA DT binding"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]