* [PATCH/RFT] arm64: dts: renesas: r8a77990: Enable I2C DMA
@ 2018-10-20 21:35 Yoshihiro Kaneko
2018-11-21 12:02 ` Simon Horman
2018-11-23 13:19 ` Geert Uytterhoeven
0 siblings, 2 replies; 4+ messages in thread
From: Yoshihiro Kaneko @ 2018-10-20 21:35 UTC (permalink / raw)
To: linux-arm-kernel
From: Takeshi Kihara <takeshi.kihara.df@renesas.com>
This patch enables I2C DMA.
NOTE: I2C7 DMA is not supported by R-Car Gen3 Hardware User's Manual
Rev.0.80E.
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
---
This patch is based on the devel branch of Simon Horman's renesas tree.
arch/arm64/boot/dts/renesas/r8a77990.dtsi | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a77990.dtsi b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
index a437862..9df0751 100644
--- a/arch/arm64/boot/dts/renesas/r8a77990.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77990.dtsi
@@ -213,6 +213,9 @@
clocks = <&cpg CPG_MOD 931>;
power-domains = <&sysc R8A77990_PD_ALWAYS_ON>;
resets = <&cpg 931>;
+ dmas = <&dmac1 0x91>, <&dmac1 0x90>,
+ <&dmac2 0x91>, <&dmac2 0x90>;
+ dma-names = "tx", "rx", "tx", "rx";
i2c-scl-internal-delay-ns = <110>;
status = "disabled";
};
@@ -227,6 +230,9 @@
clocks = <&cpg CPG_MOD 930>;
power-domains = <&sysc R8A77990_PD_ALWAYS_ON>;
resets = <&cpg 930>;
+ dmas = <&dmac1 0x93>, <&dmac1 0x92>,
+ <&dmac2 0x93>, <&dmac2 0x92>;
+ dma-names = "tx", "rx", "tx", "rx";
i2c-scl-internal-delay-ns = <6>;
status = "disabled";
};
@@ -241,6 +247,9 @@
clocks = <&cpg CPG_MOD 929>;
power-domains = <&sysc R8A77990_PD_ALWAYS_ON>;
resets = <&cpg 929>;
+ dmas = <&dmac1 0x95>, <&dmac1 0x94>,
+ <&dmac2 0x95>, <&dmac2 0x94>;
+ dma-names = "tx", "rx", "tx", "rx";
i2c-scl-internal-delay-ns = <6>;
status = "disabled";
};
@@ -255,6 +264,8 @@
clocks = <&cpg CPG_MOD 928>;
power-domains = <&sysc R8A77990_PD_ALWAYS_ON>;
resets = <&cpg 928>;
+ dmas = <&dmac0 0x97>, <&dmac0 0x96>;
+ dma-names = "tx", "rx";
i2c-scl-internal-delay-ns = <110>;
status = "disabled";
};
@@ -269,6 +280,8 @@
clocks = <&cpg CPG_MOD 927>;
power-domains = <&sysc R8A77990_PD_ALWAYS_ON>;
resets = <&cpg 927>;
+ dmas = <&dmac0 0x99>, <&dmac0 0x98>;
+ dma-names = "tx", "rx";
i2c-scl-internal-delay-ns = <6>;
status = "disabled";
};
@@ -283,6 +296,8 @@
clocks = <&cpg CPG_MOD 919>;
power-domains = <&sysc R8A77990_PD_ALWAYS_ON>;
resets = <&cpg 919>;
+ dmas = <&dmac0 0x9b>, <&dmac0 0x9a>;
+ dma-names = "tx", "rx";
i2c-scl-internal-delay-ns = <6>;
status = "disabled";
};
@@ -297,6 +312,8 @@
clocks = <&cpg CPG_MOD 918>;
power-domains = <&sysc R8A77990_PD_ALWAYS_ON>;
resets = <&cpg 918>;
+ dmas = <&dmac0 0x9d>, <&dmac0 0x9c>;
+ dma-names = "tx", "rx";
i2c-scl-internal-delay-ns = <6>;
status = "disabled";
};
--
1.9.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH/RFT] arm64: dts: renesas: r8a77990: Enable I2C DMA
2018-10-20 21:35 [PATCH/RFT] arm64: dts: renesas: r8a77990: Enable I2C DMA Yoshihiro Kaneko
@ 2018-11-21 12:02 ` Simon Horman
2018-11-23 12:37 ` Simon Horman
2018-11-23 13:19 ` Geert Uytterhoeven
1 sibling, 1 reply; 4+ messages in thread
From: Simon Horman @ 2018-11-21 12:02 UTC (permalink / raw)
To: linux-arm-kernel
On Sun, Oct 21, 2018 at 06:35:26AM +0900, Yoshihiro Kaneko wrote:
> From: Takeshi Kihara <takeshi.kihara.df@renesas.com>
>
> This patch enables I2C DMA.
>
> NOTE: I2C7 DMA is not supported by R-Car Gen3 Hardware User's Manual
> Rev.0.80E.
>
> Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
> Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Base patch stack:
* renesas-devel-20181121-v4.20-rc3
+ "iommu/ipmmu-vmsa: Hook up r8a77990 DT matching code"
+ "pinctrl: sh-pfc: r8a77990: Add Audio SSI pins, groups and functions"
+ "pinctrl: sh-pfc: r8a77990: Add Audio clock pins, groups and functions"
Config: renesas_defconfig + IPMMU_VMSA
Should we enable IPMMU_VMSA in arm64 defconfig and renesas_defconfig?
Test with base patch stack:
# grep dma /proc/interrupts | grep -v "0 0"
(no output)
# amixer set "DVC Out" 2%
# play xyz.wav
# grep dma /proc/interrupts | grep -v "0 0"
(no output)
Test with base patch stack + this patch applied:
# grep dma /proc/interrupts | grep -v "0 0"
(no output)
# amixer set "DVC Out" 2%
# play xyz.wav
# grep dma /proc/interrupts | grep -v "0 0"
109: 512 0 GIC-0 352 Level ec700000.dma-controller:0
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
I plan to apply this patch for v4.21.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH/RFT] arm64: dts: renesas: r8a77990: Enable I2C DMA
2018-11-21 12:02 ` Simon Horman
@ 2018-11-23 12:37 ` Simon Horman
0 siblings, 0 replies; 4+ messages in thread
From: Simon Horman @ 2018-11-23 12:37 UTC (permalink / raw)
To: linux-arm-kernel
On Wed, Nov 21, 2018 at 01:02:57PM +0100, Simon Horman wrote:
> On Sun, Oct 21, 2018 at 06:35:26AM +0900, Yoshihiro Kaneko wrote:
> > From: Takeshi Kihara <takeshi.kihara.df@renesas.com>
> >
> > This patch enables I2C DMA.
> >
> > NOTE: I2C7 DMA is not supported by R-Car Gen3 Hardware User's Manual
> > Rev.0.80E.
> >
> > Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
> > Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
>
> Base patch stack:
> * renesas-devel-20181121-v4.20-rc3
> + "iommu/ipmmu-vmsa: Hook up r8a77990 DT matching code"
> + "pinctrl: sh-pfc: r8a77990: Add Audio SSI pins, groups and functions"
> + "pinctrl: sh-pfc: r8a77990: Add Audio clock pins, groups and functions"
>
> Config: renesas_defconfig + IPMMU_VMSA
>
> Should we enable IPMMU_VMSA in arm64 defconfig and renesas_defconfig?
>
> Test with base patch stack:
> # grep dma /proc/interrupts | grep -v "0 0"
> (no output)
> # amixer set "DVC Out" 2%
> # play xyz.wav
> # grep dma /proc/interrupts | grep -v "0 0"
> (no output)
>
> Test with base patch stack + this patch applied:
> # grep dma /proc/interrupts | grep -v "0 0"
> (no output)
> # amixer set "DVC Out" 2%
> # play xyz.wav
> # grep dma /proc/interrupts | grep -v "0 0"
> 109: 512 0 GIC-0 352 Level ec700000.dma-controller:0
>
>
> Tested-by: Simon Horman <horms+renesas@verge.net.au>
> Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
>
> I plan to apply this patch for v4.21.
Done.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH/RFT] arm64: dts: renesas: r8a77990: Enable I2C DMA
2018-10-20 21:35 [PATCH/RFT] arm64: dts: renesas: r8a77990: Enable I2C DMA Yoshihiro Kaneko
2018-11-21 12:02 ` Simon Horman
@ 2018-11-23 13:19 ` Geert Uytterhoeven
1 sibling, 0 replies; 4+ messages in thread
From: Geert Uytterhoeven @ 2018-11-23 13:19 UTC (permalink / raw)
To: linux-arm-kernel
On Sat, Oct 20, 2018 at 11:35 PM Yoshihiro Kaneko <ykaneko0929@gmail.com> wrote:
> From: Takeshi Kihara <takeshi.kihara.df@renesas.com>
>
> This patch enables I2C DMA.
>
> NOTE: I2C7 DMA is not supported by R-Car Gen3 Hardware User's Manual
> Rev.0.80E.
>
> Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
> Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at 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
^ permalink raw reply [flat|nested] 4+ messages in thread
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2018-10-20 21:35 [PATCH/RFT] arm64: dts: renesas: r8a77990: Enable I2C DMA Yoshihiro Kaneko
2018-11-21 12:02 ` Simon Horman
2018-11-23 12:37 ` Simon Horman
2018-11-23 13:19 ` Geert Uytterhoeven
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