From: Vinod <vkoul@kernel.org>
To: Guodong Xu <guodong.xu@linaro.org>
Cc: robh+dt@kernel.org, mark.rutland@arm.com,
dan.j.williams@intel.com, liyu65@hisilicon.com,
suzhuangluan@hisilicon.com, xuhongtao8@hisilicon.com,
zhongkaihua@huawei.com, xuezhiliang@hisilicon.com,
xupeng7@huawei.com, sunliang10@huawei.com,
fengbaopeng@hisilicon.com, dmaengine@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/3] dt-bindings: k3dma: add optional property dma_min_chan
Date: Thu, 28 Jun 2018 11:30:34 +0530 [thread overview]
Message-ID: <20180628060034.GN22377@vkoul-mobl> (raw)
In-Reply-To: <20180622032416.20133-2-guodong.xu@linaro.org>
On 22-06-18, 11:24, Guodong Xu wrote:
> From: Li Yu <liyu65@hisilicon.com>
>
> Add optional property dma_min_chan for k3dma.
>
> Signed-off-by: Li Yu <liyu65@hisilicon.com>
> ---
> Documentation/devicetree/bindings/dma/k3dma.txt | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/dma/k3dma.txt b/Documentation/devicetree/bindings/dma/k3dma.txt
> index 4945aeac4dc4..2fa1370c3173 100644
> --- a/Documentation/devicetree/bindings/dma/k3dma.txt
> +++ b/Documentation/devicetree/bindings/dma/k3dma.txt
> @@ -12,6 +12,11 @@ Required properties:
> have specific request line
> - clocks: clock required
>
> +Optional properties:
> +- dma_min_chan: the minimum number of DMA channel which begin to use
> + the default value is 0, but in some platform is
Sorry I don't understand this property, we already have dma-channels
which describes the channels in a controller. What is purpose of this ?
> + configured 1, like hi3660 platform
> +
> Example:
>
> Controller:
> @@ -21,6 +26,7 @@ Controller:
> #dma-cells = <1>;
> dma-channels = <16>;
> dma-requests = <27>;
> + dma_min_chan = <1>;
> interrupts = <0 12 4>;
> clocks = <&pclk>;
> };
> --
> 2.17.1
--
~Vinod
next prev parent reply other threads:[~2018-06-28 6:00 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-22 3:24 [PATCH 0/3] k3dma: add support to reserved channels Guodong Xu
2018-06-22 3:24 ` [PATCH 1/3] dt-bindings: k3dma: add optional property dma_min_chan Guodong Xu
2018-06-28 6:00 ` Vinod [this message]
2018-07-03 18:54 ` Rob Herring
2018-07-04 1:14 ` Guodong Xu
2018-07-06 3:17 ` Guodong Xu
2018-06-22 3:24 ` [PATCH 2/3] k3dma: add support to reserved minimum channels Guodong Xu
2018-06-28 6:02 ` Vinod
2018-07-06 3:05 ` Guodong Xu
2018-07-06 6:09 ` Vinod
2018-06-22 3:24 ` [PATCH 3/3] k3dma: delete axi_config Guodong Xu
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