linux-kernel - Re: [PATCH v4 4/5] mtd: mchp23k256: add partitioning support

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Message-ID: <20170529111428.6748c2e2@bbrezillon>
Date:   Mon, 29 May 2017 11:14:28 +0200
From:   Boris Brezillon <boris.brezillon@...e-electrons.com>
To:     Chris Packham <chris.packham@...iedtelesis.co.nz>
Cc:     linux-mtd@...ts.infradead.org, andrew@...n.ch,
        computersforpeace@...il.com, dwmw2@...radead.org,
        linux-kernel@...r.kernel.org, Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>,
        Cyrille Pitchen <cyrille.pitchen@...ev4u.fr>
Subject: Re: [PATCH v4 4/5] mtd: mchp23k256: add partitioning support

On Thu, 25 May 2017 11:49:15 +1200
Chris Packham <chris.packham@...iedtelesis.co.nz> wrote:

> Setting the of_node for the mtd device allows the generic mtd code to
> setup the partitions. Additionally we must specify a non-zero erasesize
> for the partitions to be writeable.
> 
> Signed-off-by: Chris Packham <chris.packham@...iedtelesis.co.nz>
> Reviewed-by: Andrew Lunn <andrew@...n.ch>
> Tested-by: Andrew Lunn <andrew@...n.ch>

Acked-by: Boris Brezillon <boris.brezillon@...e-electrons.com>

> ---
> Changes in v2
> - collect revew/test from Andrew
> Changes in v3:
> - remove setting of erasesize
> Changes in v4:
> - none
> 
>  drivers/mtd/devices/mchp23k256.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/mtd/devices/mchp23k256.c b/drivers/mtd/devices/mchp23k256.c
> index 2542f5b8b63f..3e5feb454644 100644
> --- a/drivers/mtd/devices/mchp23k256.c
> +++ b/drivers/mtd/devices/mchp23k256.c
> @@ -143,6 +143,7 @@ static int mchp23k256_probe(struct spi_device *spi)
>  
>  	data = dev_get_platdata(&spi->dev);
>  
> +	mtd_set_of_node(&flash->mtd, spi->dev.of_node);
>  	flash->mtd.dev.parent	= &spi->dev;
>  	flash->mtd.type		= MTD_RAM;
>  	flash->mtd.flags	= MTD_CAP_RAM;