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

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Message-Id: <20170524234916.16181-5-chris.packham@alliedtelesis.co.nz>
Date:   Thu, 25 May 2017 11:49:15 +1200
From:   Chris Packham <chris.packham@...iedtelesis.co.nz>
To:     linux-mtd@...ts.infradead.org, andrew@...n.ch,
        computersforpeace@...il.com, dwmw2@...radead.org,
        boris.brezillon@...e-electrons.com, linux-kernel@...r.kernel.org
Cc:     Chris Packham <chris.packham@...iedtelesis.co.nz>,
        Marek Vasut <marek.vasut@...il.com>,
        Richard Weinberger <richard@....at>,
        Cyrille Pitchen <cyrille.pitchen@...ev4u.fr>
Subject: [PATCH v4 4/5] mtd: mchp23k256: add partitioning support

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>
---
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;
-- 
2.13.0