Re: (EXT) Re: [PATCH v9 RESEND 01/13] spi: imx: add dma_sync_sg_for_device... | linux-arm-kernel

[PATCH v9 RESEND 00/13] add ecspi ERR009165 for i.mx6/7 soc family · Robin Gong <hidden> · 2020-06-06
[PATCH v9 RESEND 01/13] spi: imx: add dma_sync_sg_for_device after fallback from dma · Robin Gong <hidden> · 2020-06-06
Re: [PATCH v9 RESEND 01/13] spi: imx: add dma_sync_sg_for_device after fallback from dma · Mark Brown <broonie@kernel.org> · 2020-06-08
RE: [PATCH v9 RESEND 01/13] spi: imx: add dma_sync_sg_for_device after fallback from dma · Robin Gong <hidden> · 2020-06-08
Re: [PATCH v9 RESEND 01/13] spi: imx: add dma_sync_sg_for_device after fallback from dma · Mark Brown <broonie@kernel.org> · 2020-06-08
Re: [PATCH v9 RESEND 01/13] spi: imx: add dma_sync_sg_for_device after fallback from dma · Robin Murphy <robin.murphy@arm.com> · 2020-06-08
RE: [PATCH v9 RESEND 01/13] spi: imx: add dma_sync_sg_for_device after fallback from dma · Robin Gong <hidden> · 2020-06-09
Re: [PATCH v9 RESEND 01/13] spi: imx: add dma_sync_sg_for_device after fallback from dma · Robin Murphy <robin.murphy@arm.com> · 2020-06-09
Re: (EXT) Re: [PATCH v9 RESEND 01/13] spi: imx: add dma_sync_sg_for_device after fallback from dma · Matthias Schiffer <hidden> · 2020-06-09
Re: (EXT) Re: [PATCH v9 RESEND 01/13] spi: imx: add dma_sync_sg_for_device after fallback from dma · Mark Brown <broonie@kernel.org> · 2020-06-09
RE: [PATCH v9 RESEND 01/13] spi: imx: add dma_sync_sg_for_device after fallback from dma · Robin Gong <hidden> · 2020-06-09
Re: [PATCH v9 RESEND 01/13] spi: imx: add dma_sync_sg_for_device after fallback from dma · Mark Brown <broonie@kernel.org> · 2020-06-09
RE: [PATCH v9 RESEND 01/13] spi: imx: add dma_sync_sg_for_device after fallback from dma · Robin Gong <hidden> · 2020-06-09
[PATCH v9 RESEND 02/13] Revert "ARM: dts: imx6q: Use correct SDMA script for SPI5 core" · Robin Gong <hidden> · 2020-06-06
[PATCH v9 RESEND 03/13] Revert "ARM: dts: imx6: Use correct SDMA script for SPI cores" · Robin Gong <hidden> · 2020-06-06
[PATCH v9 RESEND 05/13] dmaengine: imx-sdma: remove duplicated sdma_load_context · Robin Gong <hidden> · 2020-06-06
[PATCH v9 RESEND 06/13] dmaengine: imx-sdma: add mcu_2_ecspi script · Robin Gong <hidden> · 2020-06-06
[PATCH v9 RESEND 04/13] Revert "dmaengine: imx-sdma: refine to load context only once" · Robin Gong <hidden> · 2020-06-06
[PATCH v9 RESEND 07/13] spi: imx: fix ERR009165 · Robin Gong <hidden> · 2020-06-06
[PATCH v9 RESEND 09/13] spi: imx: add new i.mx6ul compatible name in binding doc · Robin Gong <hidden> · 2020-06-06
[PATCH v9 RESEND 08/13] spi: imx: remove ERR009165 workaround on i.mx6ul · Robin Gong <hidden> · 2020-06-06
[PATCH v9 RESEND 10/13] dmaengine: imx-sdma: remove ERR009165 on i.mx6ul · Robin Gong <hidden> · 2020-06-06
[PATCH v9 RESEND 11/13] dma: imx-sdma: add i.mx6ul compatible name · Robin Gong <hidden> · 2020-06-06
[PATCH v9 RESEND 12/13] dmaengine: imx-sdma: fix ecspi1 rx dma not work on i.mx8mm · Robin Gong <hidden> · 2020-06-06
[PATCH v9 RESEND 13/13] dmaengine: imx-sdma: add uart rom script · Robin Gong <hidden> · 2020-06-06
Re: (EXT) [PATCH v9 RESEND 00/13] add ecspi ERR009165 for i.mx6/7 soc family · Matthias Schiffer <hidden> · 2020-06-08

Re: (EXT) Re: [PATCH v9 RESEND 01/13] spi: imx: add dma_sync_sg_for_device after fallback from dma

From: Mark Brown <broonie@kernel.org>
Date: 2020-06-09 13:26:23
Also in: dmaengine, linux-devicetree, linux-spi, lkml

On Tue, Jun 09, 2020 at 12:09:09PM +0200, Matthias Schiffer wrote:

I assume the actual issue is that the SDMA controller is considered
registered before the firmware load has finished, but I have no idea
how feasible it would be to change that (some comments in the code
explain why this currently isn't the case).

Right, this is what's causing trouble (or at least the DMA driver not
doing PIO behind the driver I guess but that's pretty nasty).

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