[PATCH V2 1/3] dt/bindings: bcm2835: add interrupt-names property

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Martin Sperl <kernel@xxxxxxxxxxxxxxxx>

Added standard interrupt-names property so that
platform_get_irq_byname() can get used to fetch the
interrupt corresponding to each dma_channel
instead of the current platform_get_irq() with
an assumed ordering of the interrupts.

Signed-off-by: Martin Sperl <kernel@xxxxxxxxxxxxxxxx>
Acked-by: Rob Herring <robh@xxxxxxxxxx>
Acked-by: Eric Anholt <eric@xxxxxxxxxx>
Acked-by: Mark Rutland <mark.rutland@xxxxxxx>
---
 .../devicetree/bindings/dma/brcm,bcm2835-dma.txt   | 26 ++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt b/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt
index 1396078..baf9b34 100644
--- a/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt
+++ b/Documentation/devicetree/bindings/dma/brcm,bcm2835-dma.txt
@@ -12,6 +12,10 @@ Required properties:
 - reg: Should contain DMA registers location and length.
 - interrupts: Should contain the DMA interrupts associated
 		to the DMA channels in ascending order.
+- interrupt-names: Should contain the names of the interrupt
+		   in the form "dmaXX".
+		   Use "dma-shared-all" for the common interrupt line
+		   that is shared by all dma channels.
 - #dma-cells: Must be <1>, the cell in the dmas property of the
 		client device represents the DREQ number.
 - brcm,dma-channel-mask: Bit mask representing the channels
@@ -34,13 +38,35 @@ dma: dma@7e007000 {
 		     <1 24>,
 		     <1 25>,
 		     <1 26>,
+		     /* dma channel 11-14 share one irq */
 		     <1 27>,
+		     <1 27>,
+		     <1 27>,
+		     <1 27>,
+		     /* unused shared irq for all channels */
 		     <1 28>;
+	interrupt-names = "dma0",
+			  "dma1",
+			  "dma2",
+			  "dma3",
+			  "dma4",
+			  "dma5",
+			  "dma6",
+			  "dma7",
+			  "dma8",
+			  "dma9",
+			  "dma10",
+			  "dma11",
+			  "dma12",
+			  "dma13",
+			  "dma14",
+			  "dma-shared-all";
 
 	#dma-cells = <1>;
 	brcm,dma-channel-mask = <0x7f35>;
 };
 
+
 DMA clients connected to the BCM2835 DMA controller must use the format
 described in the dma.txt file, using a two-cell specifier for each channel.
 
-- 
2.1.4

--
To unsubscribe from this list: send the line "unsubscribe dmaengine" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Kernel]     [Linux ARM (vger)]     [Linux ARM MSM]     [Linux Omap]     [Linux Arm]     [Linux Tegra]     [Fedora ARM]     [Linux for Samsung SOC]     [eCos]     [Linux PCI]     [Linux Fastboot]     [Gcc Help]     [Git]     [DCCP]     [IETF Announce]     [Security]     [Linux MIPS]     [Yosemite Campsites]

  Powered by Linux