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From: Rob Herring <robh@kernel.org>
To: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: vkoul@kernel.org, dan.j.williams@intel.com,
	dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-omap@vger.kernel.org
Subject: Re: [PATCH 4/5] dt-bindings: dma: ti-edma: Add option for reserved channel ranges
Date: Thu, 29 Aug 2019 17:47:28 -0500
Message-ID: <20190829224728.GA1198@bogus> (raw)
In-Reply-To: <20190823125618.8133-5-peter.ujfalusi@ti.com>

On Fri, Aug 23, 2019 at 03:56:17PM +0300, Peter Ujfalusi wrote:
> Similarly to paRAM slots, channels can be used by other cores.
> 
> Add optional property to configure the reserved channel ranges.
> 
> Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
> ---
>  Documentation/devicetree/bindings/dma/ti-edma.txt | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/dma/ti-edma.txt b/Documentation/devicetree/bindings/dma/ti-edma.txt
> index 4bbc94d829c8..1198682ada99 100644
> --- a/Documentation/devicetree/bindings/dma/ti-edma.txt
> +++ b/Documentation/devicetree/bindings/dma/ti-edma.txt
> @@ -42,6 +42,9 @@ Optional properties:
>  - ti,edma-reserved-slot-ranges: PaRAM slot ranges which should not be used by
>  		the driver, they are allocated to be used by for example the
>  		DSP. See example.
> +- ti,edma-reserved-chan-ranges: channel ranges which should not be used by
> +		the driver, they are allocated to be used by for example the
> +		DSP. See example.

Based on the other thread, I think extending dma-channel-mask to a 
uint32-array makes sense here.

Rob

  reply index

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-23 12:56 [PATCH 0/5] dmaengine: ti: edma: Multicore usage related fixes Peter Ujfalusi
2019-08-23 12:56 ` [PATCH 1/5] dmaengine: ti: edma: Do not reset reserved paRAM slots Peter Ujfalusi
2019-08-23 12:56 ` [PATCH 2/5] dmaengine: ti: edma: Only reset region0 access registers Peter Ujfalusi
2019-08-23 12:56 ` [PATCH 3/5] dmaengine: ti: edma: Use bitmap_set() instead of open coded edma_set_bits() Peter Ujfalusi
2019-08-23 12:56 ` [PATCH 4/5] dt-bindings: dma: ti-edma: Add option for reserved channel ranges Peter Ujfalusi
2019-08-29 22:47   ` Rob Herring [this message]
2019-08-30  5:37     ` Peter Ujfalusi
2019-09-03 10:19       ` Peter Ujfalusi
2019-09-06 13:10         ` Rob Herring
2019-08-23 12:56 ` [PATCH 5/5] dmaengine: ti: edma: Add support for handling reserved channels Peter Ujfalusi
2019-09-04  9:49 ` [PATCH 0/5] dmaengine: ti: edma: Multicore usage related fixes Vinod Koul

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