On 05/29/2018 04:05 PM, Simon Horman wrote:
>> Define the generic R8A77980 parts of the I2C[0-5] device node.
>>
>> Based on the original (and large) patch by Vladimir Barinov.
>>
>> Signed-off-by: Vladimir Barinov <vladimir.barinov@xxxxxxxxxxxxxxxxxx>
>> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@xxxxxxxxxxxxxxxxxx>
>>
>> ---
>> arch/arm64/boot/dts/renesas/r8a77980.dtsi | 111 ++++++++++++++++++++++++++++++
>> 1 file changed, 111 insertions(+)
>>
>> Index: renesas/arch/arm64/boot/dts/renesas/r8a77980.dtsi
>> ===================================================================
>> --- renesas.orig/arch/arm64/boot/dts/renesas/r8a77980.dtsi
>> +++ renesas/arch/arm64/boot/dts/renesas/r8a77980.dtsi
[...]
>> @@ -135,6 +144,108 @@
[...]
>> + i2c3: i2c@e66d0000 {
>> + compatible = "renesas,i2c-r8a77980",
>> + "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 R8A77980_PD_ALWAYS_ON>;
>> + resets = <&cpg 928>;
>> + dmas = <&dmac1 0x97>, <&dmac1 0x96>,
>> + <&dmac2 0x97>, <&dmac2 0x96>;
>> + dma-names = "tx", "rx", "tx", "rx";
>> + i2c-scl-internal-delay-ns = <6>;
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> + status = "disabled";
>> + };
>
> DMA for i2c3 and i2c4 seems unclear in v0.80 and v1.00 of the User's Manual.
> Although what is described here does match v0.55E of the User's Manual.
Hm, looking at all these manuals, I'm not even seeing V3H I2C3/4 having DMA
in v0.55E!
> Have you been able to confirm what is correct here?
No. Probably need to drop I2C3/4 DMA altogether...
> Other than that this patch looks fine to me.
TY!
[...]
MBR, Sergei
