linux-kernel - [PATCH v3 3/3] mtd: m25p80: Call spi_mem_get_name() to let controller set a custom name

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Date:   Thu,  2 Aug 2018 14:53:54 +0200
From:   Frieder Schrempf <frieder.schrempf@...eet.de>
To:     dwmw2@...radead.org, computersforpeace@...il.com,
        boris.brezillon@...tlin.com, marek.vasut@...il.com, richard@....at,
        broonie@...nel.org, linux-mtd@...ts.infradead.org,
        linux-spi@...r.kernel.org
Cc:     cyrille.pitchen@...ev4u.fr, frieder.schrempf@...eet.de,
        pp@...ix.com, Zhiqiang.Hou@....com, linux-kernel@...r.kernel.org
Subject: [PATCH v3 3/3] mtd: m25p80: Call spi_mem_get_name() to let controller set a custom name

By calling spi_mem_get_name(), the driver of the (Q)SPI controller can
set a custom name for the memory device if necessary.
This is useful to keep mtdparts compatible when controller drivers are
ported from the MTD to the SPI layer.

Suggested-by: Boris Brezillon <boris.brezillon@...tlin.com>
Signed-off-by: Frieder Schrempf <frieder.schrempf@...eet.de>
---
 drivers/mtd/devices/m25p80.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index e84563d..aac48800 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -202,6 +202,9 @@ static int m25p_probe(struct spi_mem *spimem)
 	if (data && data->name)
 		nor->mtd.name = data->name;
 
+	if (!nor->mtd.name)
+		nor->mtd.name = spi_mem_get_name(spimem);
+
 	/* For some (historical?) reason many platforms provide two different
 	 * names in flash_platform_data: "name" and "type". Quite often name is
 	 * set to "m25p80" and then "type" provides a real chip name.
-- 
2.7.4