linux-kernel - Re: [PATCH 06/12] mtd: nand: gpmi: rely on generic DT parsing done in nand_scan

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Date:	Sat, 16 Apr 2016 11:07:20 +0200
From:	Boris Brezillon <boris.brezillon@...e-electrons.com>
To:	Han Xu <han.xu@....com>
Cc:	Roger Quadros <rogerq@...com>, Tony Lindgren <tony@...mide.com>,
	Wenyou Yang <wenyou.yang@...el.com>,
	Josh Wu <rainyfeeling@...look.com>,
	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	Richard Weinberger <richard@....at>,
	linux-mtd@...ts.infradead.org,
	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	Kamal Dasu <kdasu.kdev@...il.com>,
	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
	Stefan Agner <stefan@...er.ch>, linux-omap@...r.kernel.org,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
	Gregory CLEMENT <gregory.clement@...e-electrons.com>,
	Jason Cooper <jason@...edaemon.net>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Andrew Lunn <andrew@...n.ch>, Daniel Mack <daniel@...que.org>,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	Robert Jarzmik <robert.jarzmik@...e.fr>,
	bcm-kernel-feedback-list@...adcom.com,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Chen-Yu Tsai <wens@...e.org>, linux-sunxi@...glegroups.com,
	Zhou Wang <wangzhou1@...ilicon.com>,
	Alex Smith <alex.smith@...tec.com>,
	Harvey Hunt <harvey.hunt@...tec.com>
Subject: Re: [PATCH 06/12] mtd: nand: gpmi: rely on generic DT parsing done
 in nand_scan_ident()

Hi Han,

On Fri,  1 Apr 2016 14:54:26 +0200
Boris Brezillon <boris.brezillon@...e-electrons.com> wrote:

> The core now takes care of parsing generic DT properties in
> nand_scan_ident() when nand_set_flash_node() has been called.
> Rely on this initialization instead of calling of_get_nand_xxx()
> manually.

Can you review/test this patch? I'd like to have the whole series
merged in this release.

Thanks,

Boris

> 
> Signed-off-by: Boris Brezillon <boris.brezillon@...e-electrons.com>
> ---
>  drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 21 ++++++++++-----------
>  1 file changed, 10 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
> index 8122c69..c6e8a1c 100644
> --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
> +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
> @@ -25,7 +25,6 @@
>  #include <linux/mtd/partitions.h>
>  #include <linux/of.h>
>  #include <linux/of_device.h>
> -#include <linux/of_mtd.h>
>  #include "gpmi-nand.h"
>  #include "bch-regs.h"
>  
> @@ -1914,16 +1913,6 @@ static int gpmi_nand_init(struct gpmi_nand_data *this)
>  	/* Set up swap_block_mark, must be set before the gpmi_set_geometry() */
>  	this->swap_block_mark = !GPMI_IS_MX23(this);
>  
> -	if (of_get_nand_on_flash_bbt(this->dev->of_node)) {
> -		chip->bbt_options |= NAND_BBT_USE_FLASH | NAND_BBT_NO_OOB;
> -
> -		if (of_property_read_bool(this->dev->of_node,
> -						"fsl,no-blockmark-swap"))
> -			this->swap_block_mark = false;
> -	}
> -	dev_dbg(this->dev, "Blockmark swapping %sabled\n",
> -		this->swap_block_mark ? "en" : "dis");
> -
>  	/*
>  	 * Allocate a temporary DMA buffer for reading ID in the
>  	 * nand_scan_ident().
> @@ -1938,6 +1927,16 @@ static int gpmi_nand_init(struct gpmi_nand_data *this)
>  	if (ret)
>  		goto err_out;
>  
> +	if (chip->bbt_options & NAND_BBT_USE_FLASH) {
> +		chip->bbt_options |= NAND_BBT_NO_OOB;
> +
> +		if (of_property_read_bool(this->dev->of_node,
> +						"fsl,no-blockmark-swap"))
> +			this->swap_block_mark = false;
> +	}
> +	dev_dbg(this->dev, "Blockmark swapping %sabled\n",
> +		this->swap_block_mark ? "en" : "dis");
> +
>  	ret = gpmi_init_last(this);
>  	if (ret)
>  		goto err_out;



-- 
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com