linux-kernel - Re: [PATCH 0/3] An alternative to SPI NAND

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Message-ID: <20150108010257.GP9759@ld-irv-0074>
Date:	Wed, 7 Jan 2015 17:03:29 -0800
From:	Brian Norris <computersforpeace@...il.com>
To:	Peter Pan 潘栋 (peterpandong) 
	<peterpandong@...ron.com>
Cc:	"dwmw2@...radead.org" <dwmw2@...radead.org>,
	Ezequiel Garcia <ezequiel.garcia@...tec.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
	Qi Wang 王起 (qiwang) <qiwang@...ron.com>,
	Frank Liu 刘群 (frankliu) 
	<frankliu@...ron.com>,
	Melanie Zhang 张燕 (melaniezhang) 
	<melaniezhang@...ron.com>
Subject: Re: [PATCH 0/3] An alternative to SPI NAND

On Thu, Jan 08, 2015 at 12:47:24AM +0000, Peter Pan 潘栋 (peterpandong) wrote:
> Documentation/devicetree/bindings/mtd/spi-nand.txt |   22 +
> drivers/mtd/Kconfig                                |    2 +
> drivers/mtd/Makefile                               |    1 +
> drivers/mtd/spi-nand/Kconfig                       |    7 +
> drivers/mtd/spi-nand/Makefile                      |    3 +
> drivers/mtd/spi-nand/spi-nand-base.c               | 2034 ++++++++++++++++++++
> drivers/mtd/spi-nand/spi-nand-bbt.c                | 1279 ++++++++++++

I can already tell by the diffstat that I don't like this. We probably
don't need 3000 new lines of code for this, but we especially don't want
to duplicate nand_bbt.c. It won't take a lot of work to augment
nand_bbt.c to make it shareable. (I can whip that patch up if needed.)

I'll still take a look at the rest of the code eventually, but just
wanted to give my 2 cents up front.

> drivers/mtd/spi-nand/spi-nand-device.c             |  281 +++
> include/linux/mtd/spi-nand.h                       |  317 +++
> 9 files changed, 3946 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/mtd/spi-nand.txt
> create mode 100644 drivers/mtd/spi-nand/Kconfig
> create mode 100644 drivers/mtd/spi-nand/Makefile
> create mode 100644 drivers/mtd/spi-nand/spi-nand-base.c
> create mode 100644 drivers/mtd/spi-nand/spi-nand-bbt.c
> create mode 100644 drivers/mtd/spi-nand/spi-nand-device.c
> create mode 100644 include/linux/mtd/spi-nand.h

Brian
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