linux-kernel - Re: [PATCH v10 1/5] mtd: nand: vf610_nfc: Freescale NFC for VF610, MPC5125 and others

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Message-ID: <20150825203412.GM81844@google.com>
Date:	Tue, 25 Aug 2015 13:34:12 -0700
From:	Brian Norris <computersforpeace@...il.com>
To:	Stefan Agner <stefan@...er.ch>
Cc:	dwmw2@...radead.org, sebastian@...akpoint.cc, robh+dt@...nel.org,
	pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	shawn.guo@...aro.org, kernel@...gutronix.de,
	boris.brezillon@...e-electrons.com, marb@...at.de,
	aaron@...tycactus.com, bpringlemeir@...il.com,
	linux-mtd@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	albert.aribaud@...ev.fr, klimov.linux@...il.com,
	Bill Pringlemeir <bpringlemeir@...ps.com>
Subject: Re: [PATCH v10 1/5] mtd: nand: vf610_nfc: Freescale NFC for VF610,
 MPC5125 and others

One more thing...

On Mon, Aug 03, 2015 at 11:27:26AM +0200, Stefan Agner wrote:
> --- /dev/null
> +++ b/drivers/mtd/nand/vf610_nfc.c
> @@ -0,0 +1,645 @@
...
> +struct vf610_nfc {
> +	struct mtd_info mtd;
> +	struct nand_chip chip;
> +	struct device *dev;
> +	void __iomem *regs;
> +	struct completion cmd_done;
> +	uint buf_offset;
> +	int page_sz;

AFAICT (even with the 2nd patch), you never really use this field. You
just set it/increment it, but don't use it for anything. Kill it?

> +	/* Status and ID are in alternate locations. */
> +	int alt_buf;
> +#define ALT_BUF_ID   1
> +#define ALT_BUF_STAT 2
> +#define ALT_BUF_ONFI 3
> +	struct clk *clk;
> +};

Brian
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