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From: Mark Brown <broonie@kernel.org>
To: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Cc: Robin Murphy <robin.murphy@arm.com>,
	"mark.rutland@arm.com" <mark.rutland@arm.com>,
	"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
	"martin.fuzzey@flowbird.group" <martin.fuzzey@flowbird.group>,
	"catalin.marinas@arm.com" <catalin.marinas@arm.com>,
	"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
	"will.deacon@arm.com" <will.deacon@arm.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-spi@vger.kernel.org" <linux-spi@vger.kernel.org>,
	"vkoul@kernel.org" <vkoul@kernel.org>,
	"robh+dt@kernel.org" <robh+dt@kernel.org>,
	dl-linux-imx <linux-imx@nxp.com>,
	"festevam@gmail.com" <festevam@gmail.com>,
	"u.kleine-koenig@pengutronix.de" <u.kleine-koenig@pengutronix.de>,
	"dmaengine@vger.kernel.org" <dmaengine@vger.kernel.org>,
	"dan.j.williams@intel.com" <dan.j.williams@intel.com>,
	"shawnguo@kernel.org" <shawnguo@kernel.org>,
	"kernel@pengutronix.de" <kernel@pengutronix.de>,
	"linux-arm-kernel@lists.infradead.org" 
	<linux-arm-kernel@lists.infradead.org>,
	Robin Gong <yibin.gong@nxp.com>
Subject: Re: (EXT) Re: [PATCH v9 RESEND 01/13] spi: imx: add dma_sync_sg_for_device after fallback from dma
Date: Tue, 9 Jun 2020 14:26:18 +0100	[thread overview]
Message-ID: <20200609132617.GF4583@sirena.org.uk> (raw)
In-Reply-To: <4a663b38fe5c6b2ee37049fb0dcd88b70dbf232e.camel@ew.tq-group.com>

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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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  reply	other threads:[~2020-06-09 13:26 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-06 23:21 [PATCH v9 RESEND 00/13] add ecspi ERR009165 for i.mx6/7 soc family Robin Gong
2020-06-06 23:21 ` [PATCH v9 RESEND 01/13] spi: imx: add dma_sync_sg_for_device after fallback from dma Robin Gong
2020-06-08 14:34   ` Mark Brown
2020-06-08 15:08     ` Robin Gong
2020-06-08 15:31       ` Mark Brown
2020-06-08 16:44         ` Robin Murphy
2020-06-09  5:21           ` Robin Gong
2020-06-09 10:00             ` Robin Murphy
2020-06-09 10:09               ` (EXT) " Matthias Schiffer
2020-06-09 13:26                 ` Mark Brown [this message]
2020-06-09 10:10               ` Robin Gong
2020-06-09 13:36               ` Mark Brown
2020-06-09  2:45         ` Robin Gong
2020-06-06 23:21 ` [PATCH v9 RESEND 02/13] Revert "ARM: dts: imx6q: Use correct SDMA script for SPI5 core" Robin Gong
2020-06-06 23:21 ` [PATCH v9 RESEND 03/13] Revert "ARM: dts: imx6: Use correct SDMA script for SPI cores" Robin Gong
2020-06-06 23:21 ` [PATCH v9 RESEND 04/13] Revert "dmaengine: imx-sdma: refine to load context only once" Robin Gong
2020-06-06 23:21 ` [PATCH v9 RESEND 05/13] dmaengine: imx-sdma: remove duplicated sdma_load_context Robin Gong
2020-06-06 23:21 ` [PATCH v9 RESEND 06/13] dmaengine: imx-sdma: add mcu_2_ecspi script Robin Gong
2020-06-06 23:21 ` [PATCH v9 RESEND 07/13] spi: imx: fix ERR009165 Robin Gong
2020-06-06 23:21 ` [PATCH v9 RESEND 08/13] spi: imx: remove ERR009165 workaround on i.mx6ul Robin Gong
2020-06-06 23:21 ` [PATCH v9 RESEND 09/13] spi: imx: add new i.mx6ul compatible name in binding doc Robin Gong
2020-06-06 23:21 ` [PATCH v9 RESEND 10/13] dmaengine: imx-sdma: remove ERR009165 on i.mx6ul Robin Gong
2020-06-06 23:21 ` [PATCH v9 RESEND 11/13] dma: imx-sdma: add i.mx6ul compatible name Robin Gong
2020-06-06 23:21 ` [PATCH v9 RESEND 12/13] dmaengine: imx-sdma: fix ecspi1 rx dma not work on i.mx8mm Robin Gong
2020-06-06 23:21 ` [PATCH v9 RESEND 13/13] dmaengine: imx-sdma: add uart rom script Robin Gong
2020-06-08  9:11 ` (EXT) [PATCH v9 RESEND 00/13] add ecspi ERR009165 for i.mx6/7 soc family Matthias Schiffer

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