lkml.org 
[lkml]   [2022]   [May]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
SubjectRe: [PATCH 2/2] arm64: tegra: Add Tegra234 GPCDMA device tree node
From
On 13/05/2022 10:39, Jon Hunter wrote:
>
> On 13/05/2022 09:32, Krzysztof Kozlowski wrote:
>> On 12/05/2022 11:00, Akhil R wrote:
>>> Add device tree nodes for Tegra234 GPCDMA
>>>
>>> Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
>>> ---
>>> arch/arm64/boot/dts/nvidia/tegra234.dtsi | 43 ++++++++++++++++++++++++
>>> 1 file changed, 43 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
>>> index cb3af539e477..860c3cc68cea 100644
>>> --- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
>>> +++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
>>> @@ -21,6 +21,49 @@
>>>
>>> ranges = <0x0 0x0 0x0 0x40000000>;
>>>
>>> + gpcdma: dma-controller@2600000 {
>>> + compatible = "nvidia,tegra194-gpcdma",
>>> + "nvidia,tegra186-gpcdma";
>>> + reg = <0x2600000 0x210000>;
>>> + resets = <&bpmp TEGRA234_RESET_GPCDMA>;
>>> + reset-names = "gpcdma";
>>> + interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>,
>>> + <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
>>> + #dma-cells = <1>;
>>> + iommus = <&smmu_niso0 TEGRA234_SID_GPCDMA>;
>>> + dma-coherent;
>>> + status = "okay";
>>
>> okay is by default for new nodes.
>
> Just so I know, is it recommended then to drop the status in this case
> or is it OK to leave as is?

If this is a new node, then please drop it. Less code.

Of course it would be entirely different if this was overriding an
existing node with status=disabled.


Best regards,
Krzysztof

\
 
 \ /
  Last update: 2022-05-13 11:15    [W:0.135 / U:0.192 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site