linux-kernel - [PATCH -next 0/2] dmaengine: xilinx_dma: In dma channel probe fix node order dependency

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Date:   Thu, 30 Jan 2020 18:24:23 +0530
From:   Radhey Shyam Pandey <radhey.shyam.pandey@...inx.com>
To:     vkoul@...nel.org, dan.j.williams@...el.com,
        michal.simek@...inx.com, nick.graumann@...il.com,
        andrea.merello@...il.com, appana.durga.rao@...inx.com,
        mcgrof@...nel.org
Cc:     dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        git@...inx.com,
        Radhey Shyam Pandey <radhey.shyam.pandey@...inx.com>
Subject: [PATCH -next 0/2] dmaengine: xilinx_dma: In dma channel probe fix node order dependency

In overlay application[1] we noticed that channel DT nodes are inverted and
as a sideffect of this behaviour the axidmatest client fails.

In general driver should not assume specific DT probe order. So to fix this
failure remove channel node ordering restriction from the xilinx dma driver.

[1]: https://github.com/raspberrypi/linux/issues/2416

Radhey Shyam Pandey (2):
  dmaengine: xilinx_dma: Extend dma_config structure to store max
    channel count
  dmaengine: xilinx_dma: In dma channel probe fix node order dependency

 drivers/dma/xilinx/xilinx_dma.c | 48 +++++++++++++++++++++--------------------
 1 file changed, 25 insertions(+), 23 deletions(-)

-- 
2.7.4