[PATCH v2] ARM: dts: integrator: Fix DMA ranges mismatch warning on IM-PD1

[Kuan-Wei Chiu]

When compiling the device tree for the Integrator/AP with IM-PD1, the
following warning is observed regarding the display controller node:

arch/arm/boot/dts/arm/integratorap-im-pd1.dts:251.3-14: Warning
(dma_ranges_format):
/bus at c0000000/bus at c0000000/display at 1000000:dma-ranges: empty
"dma-ranges" property but its #address-cells (2) differs from
/bus at c0000000/bus at c0000000 (1)

The "dma-ranges" property is intended to describe DMA address
translations for child nodes. However, the only child of the display
controller is a "port" node, which does not perform DMA memory
accesses.

Since the property is not required for the child node and triggers a
warning due to default address cell mismatch, remove it.

Fixes: 7bea67a99430 ("ARM: dts: integrator: Fix DMA ranges")
Cc: stable at vger.kernel.org
Signed-off-by: Kuan-Wei Chiu <visitorckw at gmail.com>
---
Changes in v2:
- Switch approach to remove the unused "dma-ranges" property instead of
  adding "#address-cells" and "#size-cells".

 arch/arm/boot/dts/arm/integratorap-im-pd1.dts | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/boot/dts/arm/integratorap-im-pd1.dts b/arch/arm/boot/dts/arm/integratorap-im-pd1.dts
index db13e09f2fab..0e568baf03b0 100644
--- a/arch/arm/boot/dts/arm/integratorap-im-pd1.dts
+++ b/arch/arm/boot/dts/arm/integratorap-im-pd1.dts
@@ -248,7 +248,6 @@ display at 1000000 {
 		/* 640x480 16bpp @ 25.175MHz is 36827428 bytes/s */
 		max-memory-bandwidth = <40000000>;
 		memory-region = <&impd1_ram>;
-		dma-ranges;
 
 		port at 0 {
 			#address-cells = <1>;
-- 
2.52.0.358.g0dd7633a29-goog