Re: [PATCH v10 05/12] dmaengine: dma: imx-sdma: add fw_loaded and is_ram_script
From: Vinod Koul <vkoul@kernel.org>
Date: 2020-07-15 05:57:17
Also in:
dmaengine, linux-arm-kernel, linux-spi, lkml
On 30-06-20, 21:31, Robin Gong wrote:
Add 'fw_loaded' and 'is_ram_script' to check if the script used by channel is ram script and it's loaded or not, so that could prevent meaningless following malloc dma descriptor and bd allocate in sdma_transfer_init(), otherwise memory may be consumed out potentially without free in case that spi fallback into pio while dma transfer failed by sdma firmware not ready(next ERR009165 patch depends on sdma RAM scripts/firmware).
Acked-By: Vinod Koul <vkoul@kernel.org> -- ~Vinod