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48 lines
1.7 KiB
48 lines
1.7 KiB
From fe013a7a5667763bde164dd5c9341ee5361a9c23 Mon Sep 17 00:00:00 2001
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From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
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Date: Sat, 19 Oct 2013 18:19:25 -0300
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Subject: [PATCH 127/203] mtd: nand: pxa3xx: Fix registered MTD name
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In a recent commit:
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commit f455578dd961087a5cf94730d9f6489bb1d355f0
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Author: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
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Date: Mon Aug 12 14:14:53 2013 -0300
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mtd: nand: pxa3xx: Remove hardcoded mtd name
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There's no advantage in using a hardcoded name for the mtd device.
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Instead use the provided by the platform_device.
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The MTD name was changed to use the one provided by the platform_device.
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However, this can be problematic as some users want to set partitions
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using the kernel parameter 'mtdparts', where the name is needed.
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Therefore, to avoid regressions in users relying in 'mtdparts' we revert
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the change and use the previous one 'pxa3xx_nand-0'.
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While at it, let's put a big comment and prevent this change from happening
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ever again.
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Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
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Signed-off-by: Brian Norris <computersforpeace@gmail.com>
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---
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drivers/mtd/nand/pxa3xx_nand.c | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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--- a/drivers/mtd/nand/pxa3xx_nand.c
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+++ b/drivers/mtd/nand/pxa3xx_nand.c
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@@ -1320,7 +1320,12 @@ static int pxa3xx_nand_probe(struct plat
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for (cs = 0; cs < pdata->num_cs; cs++) {
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struct mtd_info *mtd = info->host[cs]->mtd;
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- mtd->name = pdev->name;
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+ /*
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+ * The mtd name matches the one used in 'mtdparts' kernel
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+ * parameter. This name cannot be changed or otherwise
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+ * user's mtd partitions configuration would get broken.
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+ */
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+ mtd->name = "pxa3xx_nand-0";
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info->cs = cs;
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ret = pxa3xx_nand_scan(mtd);
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if (ret) {
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