From: "William A. Kennington III" <wak@google.com>
To: linux-mtd@lists.infradead.org
Cc: wak@google.com
Subject: [PATCH] mtd: powernv: Support MTD_NO_ERASE
Date: Tue, 5 Sep 2017 13:23:39 -0700 [thread overview]
Message-ID: <20170905202339.20732-1-wak@google.com> (raw)
As of skiboot@ba99af9b149d02438347b055e6e7d6bd15e33551, we now support
adding a device tree entry which marks a flash device as not needing
erase. This patch adds support for setting MTD_NO_ERASE on powernvflash
devices which have the property no-erase.
Signed-off-by: William A. Kennington III <wak@google.com>
---
drivers/mtd/devices/powernv_flash.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/mtd/devices/powernv_flash.c b/drivers/mtd/devices/powernv_flash.c
index f5396f26ddb4..fab9f9121b4c 100644
--- a/drivers/mtd/devices/powernv_flash.c
+++ b/drivers/mtd/devices/powernv_flash.c
@@ -196,6 +196,8 @@ static int powernv_flash_set_driver_info(struct device *dev,
mtd->name = of_get_property(dev->of_node, "name", NULL);
mtd->type = MTD_NORFLASH;
mtd->flags = MTD_WRITEABLE;
+ if (of_property_read_bool(dev->of_node, "no-erase"))
+ mtd->flags |= MTD_NO_ERASE;
mtd->size = size;
mtd->erasesize = erase_size;
mtd->writebufsize = mtd->writesize = 1;
--
2.13.1
next reply other threads:[~2017-09-05 20:24 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-05 20:23 William A. Kennington III [this message]
2017-09-21 7:59 ` [PATCH] mtd: powernv: Support MTD_NO_ERASE Boris Brezillon
[not found] ` <CAPnigKmBujCoKdtXwnK6YsU=YvXM+MaDvDvKpUXEVgHzOC-VEw@mail.gmail.com>
2017-09-22 4:13 ` Michael Ellerman
2017-10-16 15:55 ` Boris Brezillon
2017-10-17 13:21 ` Rob Herring
2017-10-18 5:11 ` Stewart Smith
2017-10-30 8:48 ` Boris Brezillon
2017-10-30 15:23 ` Rob Herring
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