* [PATCH 1/2] arm64: dts: renesas: r8a77970: add I2C support
@ 2017-11-16 21:06 Sergei Shtylyov
2017-11-22 13:06 ` Geert Uytterhoeven
0 siblings, 1 reply; 3+ messages in thread
From: Sergei Shtylyov @ 2017-11-16 21:06 UTC (permalink / raw)
To: Simon Horman, Rob Herring, Catalin Marinas, Will Deacon,
linux-renesas-soc-u79uwXL29TY76Z2rM5mHXA,
devicetree-u79uwXL29TY76Z2rM5mHXA
Cc: Magnus Damm, Mark Rutland,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r,
Vladimir Barinov, Sergei Shtylyov
[-- Attachment #1: arm64-dts-renesas-r8a77970-add-I2C-support.patch --]
[-- Type: text/plain, Size: 3615 bytes --]
Define the generic R8A77970 parts of the I2C[0-4] device node.
Based on the original (and large) patch by Daisuke Matsushita
<daisuke.matsushita.ns-FCd8Q96Dh0JBDgjK7y7TUQ@public.gmane.org>.
Signed-off-by: Vladimir Barinov <vladimir.barinov-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>
---
arch/arm64/boot/dts/renesas/r8a77970.dtsi | 88 ++++++++++++++++++++++++++++++
1 file changed, 88 insertions(+)
Index: renesas/arch/arm64/boot/dts/renesas/r8a77970.dtsi
===================================================================
--- renesas.orig/arch/arm64/boot/dts/renesas/r8a77970.dtsi
+++ renesas/arch/arm64/boot/dts/renesas/r8a77970.dtsi
@@ -18,6 +18,14 @@
#address-cells = <2>;
#size-cells = <2>;
+ aliases {
+ i2c0 = &i2c0;
+ i2c1 = &i2c1;
+ i2c2 = &i2c2;
+ i2c3 = &i2c3;
+ i2c4 = &i2c4;
+ };
+
psci {
compatible = "arm,psci-1.0", "arm,psci-0.2";
method = "smc";
@@ -483,5 +491,85 @@
#address-cells = <1>;
#size-cells = <0>;
};
+
+ i2c0: i2c@e6500000 {
+ compatible = "renesas,i2c-r8a77970",
+ "renesas,rcar-gen3-i2c";
+ reg = <0 0xe6500000 0 0x40>;
+ interrupts = <GIC_SPI 287 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 931>;
+ power-domains = <&sysc 32>;
+ resets = <&cpg 931>;
+ dmas = <&dmac1 0x91>, <&dmac1 0x90>;
+ dma-names = "tx", "rx";
+ i2c-scl-internal-delay-ns = <6>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c1: i2c@e6508000 {
+ compatible = "renesas,i2c-r8a77970",
+ "renesas,rcar-gen3-i2c";
+ reg = <0 0xe6508000 0 0x40>;
+ interrupts = <GIC_SPI 288 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 930>;
+ power-domains = <&sysc 32>;
+ resets = <&cpg 930>;
+ dmas = <&dmac1 0x93>, <&dmac1 0x92>;
+ dma-names = "tx", "rx";
+ i2c-scl-internal-delay-ns = <6>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c2: i2c@e6510000 {
+ compatible = "renesas,i2c-r8a77970",
+ "renesas,rcar-gen3-i2c";
+ reg = <0 0xe6510000 0 0x40>;
+ interrupts = <GIC_SPI 286 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 929>;
+ power-domains = <&sysc 32>;
+ resets = <&cpg 929>;
+ dmas = <&dmac1 0x95>, <&dmac1 0x94>;
+ dma-names = "tx", "rx";
+ i2c-scl-internal-delay-ns = <6>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c3: i2c@e66d0000 {
+ compatible = "renesas,i2c-r8a77970",
+ "renesas,rcar-gen3-i2c";
+ reg = <0 0xe66d0000 0 0x40>;
+ interrupts = <GIC_SPI 290 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 928>;
+ power-domains = <&sysc 32>;
+ resets = <&cpg 928>;
+ dmas = <&dmac1 0x97>, <&dmac1 0x96>;
+ dma-names = "tx", "rx";
+ i2c-scl-internal-delay-ns = <6>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+
+ i2c4: i2c@e66d8000 {
+ compatible = "renesas,i2c-r8a77970",
+ "renesas,rcar-gen3-i2c";
+ reg = <0 0xe66d8000 0 0x40>;
+ interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&cpg CPG_MOD 927>;
+ power-domains = <&sysc 32>;
+ resets = <&cpg 927>;
+ dmas = <&dmac1 0x99>, <&dmac1 0x98>;
+ dma-names = "tx", "rx";
+ i2c-scl-internal-delay-ns = <6>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
};
};
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^ permalink raw reply [flat|nested] 3+ messages in thread* Re: [PATCH 1/2] arm64: dts: renesas: r8a77970: add I2C support
2017-11-16 21:06 [PATCH 1/2] arm64: dts: renesas: r8a77970: add I2C support Sergei Shtylyov
@ 2017-11-22 13:06 ` Geert Uytterhoeven
[not found] ` <CAMuHMdV1RFyvPSZjEiJvdnu6QfHC9s-oUubvph0atGqx27MjnA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
0 siblings, 1 reply; 3+ messages in thread
From: Geert Uytterhoeven @ 2017-11-22 13:06 UTC (permalink / raw)
To: Sergei Shtylyov
Cc: Simon Horman, Rob Herring, Catalin Marinas, Will Deacon,
Linux-Renesas, devicetree@vger.kernel.org, Magnus Damm,
Mark Rutland, linux-arm-kernel@lists.infradead.org,
Vladimir Barinov
Hi Sergei,
On Thu, Nov 16, 2017 at 10:06 PM, Sergei Shtylyov
<sergei.shtylyov@cogentembedded.com> wrote:
> Define the generic R8A77970 parts of the I2C[0-4] device node.
>
> Based on the original (and large) patch by Daisuke Matsushita
> <daisuke.matsushita.ns@hitachi.com>.
>
> Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Thanks for your patch!
> --- renesas.orig/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> +++ renesas/arch/arm64/boot/dts/renesas/r8a77970.dtsi
> @@ -483,5 +491,85 @@
> #address-cells = <1>;
> #size-cells = <0>;
> };
> +
> + i2c0: i2c@e6500000 {
> + compatible = "renesas,i2c-r8a77970",
> + "renesas,rcar-gen3-i2c";
> + reg = <0 0xe6500000 0 0x40>;
> + interrupts = <GIC_SPI 287 IRQ_TYPE_LEVEL_HIGH>;
> + clocks = <&cpg CPG_MOD 931>;
> + power-domains = <&sysc 32>;
> + resets = <&cpg 931>;
> + dmas = <&dmac1 0x91>, <&dmac1 0x90>;
Can't all five i2c interfaces be used with both dmac1 and dmac2?
With that fixed:
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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2017-11-16 21:06 [PATCH 1/2] arm64: dts: renesas: r8a77970: add I2C support Sergei Shtylyov
2017-11-22 13:06 ` Geert Uytterhoeven
[not found] ` <CAMuHMdV1RFyvPSZjEiJvdnu6QfHC9s-oUubvph0atGqx27MjnA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-11-29 9:38 ` Simon Horman
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