ARM: dts: add generic DMA device tree binding for mxs-dma

Add generic DMA device tree binding for mxs-dma.  The changes include:

 * Add channel interrupts into DMA controller nodes
 * Add properties '#dma-cells' and 'dma-channels' for DMA controller nodes
 * And properties 'dmas' and 'dma-names' for DMA client nodes
 * Update mxs-dma device tree binding doc

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 40 insertions, 2 deletions

diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23.dtsi
index ad2d79324cd3..73fd7d0887b5 100644
--- a/arch/arm/boot/dts/imx23.dtsi
+++ b/arch/arm/boot/dts/imx23.dtsi
@@ -49,9 +49,15 @@
                                 reg = <0x80000000 0x2000>;
                         };
 
-                        dma-apbh@80004000 {
+                        dma_apbh: dma-apbh@80004000 {
                                 compatible = "fsl,imx23-dma-apbh";
                                 reg = <0x80004000 0x2000>;
+                                interrupts = <0 14 20 0
+                                              13 13 13 13>;
+                                interrupt-names = "empty", "ssp0", "ssp1", "empty",
+                                                  "gpmi0", "gpmi1", "gpmi2", "gpmi3";
+                                #dma-cells = <1>;
+                                dma-channels = <8>;
                                 clocks = <&clks 15>;
                         };
 
@@ -70,6 +76,8 @@
                                 interrupt-names = "gpmi-dma", "bch";
                                 clocks = <&clks 34>;
                                 clock-names = "gpmi_io";
+                                dmas = <&dma_apbh 4>;
+                                dma-names = "rx-tx";
                                 fsl,gpmi-dma-channel = <4>;
                                 status = "disabled";
                         };
@@ -78,6 +86,8 @@
                                 reg = <0x80010000 0x2000>;
                                 interrupts = <15 14>;
                                 clocks = <&clks 33>;
+                                dmas = <&dma_apbh 1>;
+                                dma-names = "rx-tx";
                                 fsl,ssp-dma-channel = <1>;
                                 status = "disabled";
                         };
@@ -305,9 +315,19 @@
                                 status = "disabled";
                         };
 
-                        dma-apbx@80024000 {
+                        dma_apbx: dma-apbx@80024000 {
                                 compatible = "fsl,imx23-dma-apbx";
                                 reg = <0x80024000 0x2000>;
+                                interrupts = <7 5 9 26
+                                              19 0 25 23
+                                              60 58 9 0
+                                              0 0 0 0>;
+                                interrupt-names = "audio-adc", "audio-dac", "spdif-tx", "i2c",
+                                                  "saif0", "empty", "auart0-rx", "auart0-tx",
+                                                  "auart1-rx", "auart1-tx", "saif1", "empty",
+                                                  "empty", "empty", "empty", "empty";
+                                #dma-cells = <1>;
+                                dma-channels = <16>;
                                 clocks = <&clks 16>;
                         };
 
@@ -344,6 +364,8 @@
                                 reg = <0x80034000 0x2000>;
                                 interrupts = <2 20>;
                                 clocks = <&clks 33>;
+                                dmas = <&dma_apbh 2>;
+                                dma-names = "rx-tx";
                                 fsl,ssp-dma-channel = <2>;
                                 status = "disabled";
                         };
@@ -369,6 +391,8 @@
 
                         saif0: saif@80042000 {
                                 reg = <0x80042000 0x2000>;
+                                dmas = <&dma_apbx 4>;
+                                dma-names = "rx-tx";
                                 status = "disabled";
                         };
 
@@ -379,16 +403,22 @@
 
                         saif1: saif@80046000 {
                                 reg = <0x80046000 0x2000>;
+                                dmas = <&dma_apbx 10>;
+                                dma-names = "rx-tx";
                                 status = "disabled";
                         };
 
                         audio-out@80048000 {
                                 reg = <0x80048000 0x2000>;
+                                dmas = <&dma_apbx 1>;
+                                dma-names = "tx";
                                 status = "disabled";
                         };
 
                         audio-in@8004c000 {
                                 reg = <0x8004c000 0x2000>;
+                                dmas = <&dma_apbx 0>;
+                                dma-names = "rx";
                                 status = "disabled";
                         };
 
@@ -401,11 +431,15 @@
 
                         spdif@80054000 {
                                 reg = <0x80054000 2000>;
+                                dmas = <&dma_apbx 2>;
+                                dma-names = "tx";
                                 status = "disabled";
                         };
 
                         i2c@80058000 {
                                 reg = <0x80058000 0x2000>;
+                                dmas = <&dma_apbx 3>;
+                                dma-names = "rx-tx";
                                 status = "disabled";
                         };
 
@@ -436,6 +470,8 @@
                                 reg = <0x8006c000 0x2000>;
                                 interrupts = <24 25 23>;
                                 clocks = <&clks 32>;
+                                dmas = <&dma_apbx 6>, <&dma_apbx 7>;
+                                dma-names = "rx", "tx";
                                 status = "disabled";
                         };
 
@@ -444,6 +480,8 @@
                                 reg = <0x8006e000 0x2000>;
                                 interrupts = <59 60 58>;
                                 clocks = <&clks 32>;
+                                dmas = <&dma_apbx 8>, <&dma_apbx 9>;
+                                dma-names = "rx", "tx";
                                 status = "disabled";
                         };