From: Anton Bondarenko <anton.bondarenko.sama@gmail.com>
To: Sascha Hauer <s.hauer@pengutronix.de>
Cc: broonie@kernel.org, b38343@freescale.com,
linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
vladimir_zapolskiy@mentor.com, jiada_wang@mentor.com
Subject: Re: [PATCH v3 6/7] spi: imx: return error from dma channel request
Date: Thu, 5 Nov 2015 17:00:28 +0100 [thread overview]
Message-ID: <563B7D1C.7010105@gmail.com> (raw)
In-Reply-To: <20151105085637.GJ8526@pengutronix.de>
On 05.11.2015 09:56, Sascha Hauer wrote:
> On Sun, Nov 01, 2015 at 03:41:40PM +0100, Anton Bondarenko wrote:
>> From: Anton Bondarenko <anton_bondarenko@mentor.com>
>>
>> On SDMA initialization return exactly the same error, which is
>> reported by dma_request_slave_channel_reason(), it is a preceding
>> change to defer SPI DMA initialization, if SDMA module is not yet
>> available.
>
> Maybe something like: "fix probe deferral when dmaengine is not yet
> available" in the subject line will better express that this is a patch
> that should be applied ASAP. Also you can move this up to the front of
> the series when resending.
>
> Sascha
>
This patch itself does not implement deferral for spi-imx if dmaengine
not ready. The patch targets 2 things: give a bit more detailed error
information of SPI dma slave channel initialization error and provide a
basis for the next patch ([PATCH v3 7/7] spi: imx: defer spi
initialization, if DMA engine is pending).
Regards, Anton
next prev parent reply other threads:[~2015-11-05 16:00 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-01 14:41 [PATCH v3 0/7] Improvements for SPI IMX driver for Freescale IMX51, IMX53 and IMX6 Anton Bondarenko
2015-11-01 14:41 ` [PATCH v3 1/7] spi: imx: Fix DMA transfer Anton Bondarenko
2015-11-03 7:08 ` Robin Gong
2015-11-04 21:03 ` Anton Bondarenko
2015-11-05 8:34 ` Sascha Hauer
[not found] ` <20151105083422.GH8526-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2015-11-05 16:51 ` Anton Bondarenko
[not found] ` <563B88FD.8050702-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-11-14 10:02 ` Anton Bondarenko
2015-11-01 14:41 ` [PATCH v3 5/7] spi: imx: Add support for loopback for ECSPI controllers Anton Bondarenko
[not found] ` <1446388901-6073-6-git-send-email-anton.bondarenko.sama-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-11-14 10:06 ` Anton Bondarenko
[not found] ` <1446388901-6073-1-git-send-email-anton.bondarenko.sama-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-11-01 14:41 ` [PATCH v3 2/7] spi: imx: replace fixed timeout with calculated one Anton Bondarenko
2015-11-05 8:47 ` Sascha Hauer
[not found] ` <20151105084723.GI8526-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2015-11-10 20:20 ` Anton Bondarenko
2015-11-11 8:12 ` Sascha Hauer
2015-11-14 10:01 ` Anton Bondarenko
2015-11-01 14:41 ` [PATCH v3 3/7] spi: imx: add support for all SPI word width for DMA transfer Anton Bondarenko
[not found] ` <1446388901-6073-4-git-send-email-anton.bondarenko.sama-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-11-14 10:08 ` Anton Bondarenko
2015-11-01 14:41 ` [PATCH v3 4/7] spi: imx: add function to check for IMX51 family controller Anton Bondarenko
2015-11-14 10:06 ` Anton Bondarenko
2015-11-01 14:41 ` [PATCH v3 6/7] spi: imx: return error from dma channel request Anton Bondarenko
[not found] ` <1446388901-6073-7-git-send-email-anton.bondarenko.sama-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-11-05 8:56 ` Sascha Hauer
2015-11-05 16:00 ` Anton Bondarenko [this message]
2015-11-14 10:03 ` Anton Bondarenko
[not found] ` <563B7D1C.7010105-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-11-14 10:05 ` Anton Bondarenko
2015-11-01 14:41 ` [PATCH v3 7/7] spi: imx: defer spi initialization, if DMA engine is pending Anton Bondarenko
2015-11-05 8:59 ` Sascha Hauer
2015-11-05 16:18 ` Anton Bondarenko
[not found] ` <563B8157.9030104-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2015-11-14 10:03 ` Anton Bondarenko
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