From: Boris Brezillon <boris.brezillon@bootlin.com>
To: Miquel Raynal <miquel.raynal@bootlin.com>
Cc: Liang Yang <liang.yang@amlogic.com>,
Rob Herring <robh@kernel.org>,
Hanjie Lin <hanjie.lin@amlogic.com>,
Victor Wan <victor.wan@amlogic.com>,
Jianxin Pan <jianxin.pan@amlogic.com>,
Neil Armstrong <narmstrong@baylibre.com>,
Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
Richard Weinberger <richard@nod.at>,
Yixun Lan <yixun.lan@amlogic.com>, <linux-kernel@vger.kernel.org>,
Marek Vasut <marek.vasut@gmail.com>,
Jian Hu <jian.hu@amlogic.com>, <linux-mtd@lists.infradead.org>,
Kevin Hilman <khilman@baylibre.com>,
Carlo Caione <carlo@caione.org>,
<linux-amlogic@lists.infradead.org>,
Brian Norris <computersforpeace@gmail.com>,
David Woodhouse <dwmw2@infradead.org>,
<linux-arm-kernel@lists.infradead.org>,
Jerome Brunet <jbrunet@baylibre.com>,
Wolfram Sang <wsa@the-dreams.de>
Subject: Re: [PATCH v6 2/2] mtd: rawnand: meson: add support for Amlogic NAND flash controller
Date: Thu, 15 Nov 2018 14:09:05 +0100 [thread overview]
Message-ID: <20181115140905.40011b4b@bbrezillon> (raw)
In-Reply-To: <20181115140400.3934effe@xps13>
On Thu, 15 Nov 2018 14:04:00 +0100
Miquel Raynal <miquel.raynal@bootlin.com> wrote:
> Hi Liang,
>
> Liang Yang <liang.yang@amlogic.com> wrote on Thu, 15 Nov 2018 19:25:07
> +0800:
>
> > Hi Boris,
> >
> > I have implemented dma access base on these helpers you provided below.
> > we prepare to send v7 version now, so when will these helpers be pushed?
>
> Thanks for your work. You can send the v7 so we will have a look at the
> overall driver; but since we raised the DMA buffers issue we had a
> discussion with Boris about how to handle them and I think we are going
> to adopt the same solution as Wolfram in the I2C subsystem: manual
> flagging. Sadly, this is probably the best we can do to ensure proper
> DMA support.
>
> There is nothing set is stone yet but I started a small rework to
> handle MTD operations differently (and add a DMA_SAFE flag), you can
> have a look there [1]. Don't base your work on it for now as it is just
> a preliminary version, subject to big changes.
In order to not block the driver, I'd suggest that you move the helper
I proposed directly into your driver and prefix them with 'meson_'.
next prev parent reply other threads:[~2018-11-15 13:09 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-01 16:42 [PATCH v6 0/2] mtd: rawnand: meson: add Amlogic NAND driver support Jianxin Pan
2018-11-01 16:42 ` [PATCH v6 1/2] dt-bindings: nand: meson: add Amlogic NAND controller driver Jianxin Pan
2018-11-01 16:42 ` [PATCH v6 2/2] mtd: rawnand: meson: add support for Amlogic NAND flash controller Jianxin Pan
2018-11-05 15:53 ` Boris Brezillon
2018-11-06 9:08 ` Liang Yang
2018-11-06 9:28 ` Boris Brezillon
2018-11-06 10:00 ` Liang Yang
2018-11-06 10:22 ` Boris Brezillon
2018-11-06 11:08 ` Liang Yang
2018-11-06 16:16 ` Boris Brezillon
2018-11-07 2:13 ` Liang Yang
2018-11-08 7:41 ` Liang Yang
2018-11-12 16:13 ` Miquel Raynal
2018-11-12 16:54 ` Boris Brezillon
2018-11-12 17:45 ` Boris Brezillon
2018-11-15 11:25 ` Liang Yang
2018-11-15 13:04 ` Miquel Raynal
2018-11-15 13:09 ` Boris Brezillon [this message]
2018-11-16 8:29 ` Liang Yang
2018-11-11 20:57 ` [PATCH v6 0/2] mtd: rawnand: meson: add Amlogic NAND driver support Miquel Raynal
2018-11-14 6:42 ` Jianxin Pan
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