[PATCH] arm64: dts: r8a7796: Add DRIF support
From: horms@verge.net.au (Simon Horman)
Date: 2017-06-30 10:17:20
Also in:
linux-devicetree, linux-renesas-soc
On Tue, Jun 27, 2017 at 01:54:38PM +0100, Ramesh Shanmugasundaram wrote:
quoted hunk ↗ jump to hunk
Adds the DRIF controller nodes for r8a7796. Signed-off-by: Ramesh Shanmugasundaram <redacted> --- Hi Simon, This patch is based on renesas-devel-20170626-v4.12-rc7 tag. It is verified on M3 ES1.0. I also verified there are no regression issues with this addition. The driver[1] is pushed into the media_tree. The bindings[2] are ACK'ed by Geert & Rob and in the media_tree queue. [1] https://git.linuxtv.org/media_tree.git/commit/?id=7625ee981af166ddb569e2e6c0006e2af471326f [2] https://www.mail-archive.com/linux-renesas-soc at vger.kernel.org/msg15602.html Thanks, Ramesh. arch/arm64/boot/dts/renesas/r8a7796.dtsi | 120 +++++++++++++++++++++++++++++++ 1 file changed, 120 insertions(+)diff --git a/arch/arm64/boot/dts/renesas/r8a7796.dtsi b/arch/arm64/boot/dts/renesas/r8a7796.dtsi index 1f6710912045..df04d132a127 100644 --- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi@@ -639,6 +639,126 @@ }; }; + drif00: rif at e6f40000 { + compatible = "renesas,r8a7796-drif", + "renesas,rcar-gen3-drif"; + reg = <0 0xe6f40000 0 0x64>; + interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&cpg CPG_MOD 515>; + clock-names = "fck"; + dmas = <&dmac1 0x20>, <&dmac2 0x20>;
The dmas property seems a little strange. I would have expected to allow ether dmac1 or dmac2 to be used for both tx and rx: dmas = <&dmac1 0x20>, <&dmac1 0x20>, <&dmac2 0x20>, <&dmac2 0x20>;
+ dma-names = "rx", "rx"; + power-domains = <&sysc R8A7796_PD_ALWAYS_ON>; + resets = <&cpg 515>; + renesas,bonding = <&drif01>; + status = "disabled"; + };
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