From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WuKf3-0007xi-7S for barebox@lists.infradead.org; Tue, 10 Jun 2014 11:56:17 +0000 From: Sascha Hauer Date: Tue, 10 Jun 2014 13:55:53 +0200 Message-Id: <1402401353-13704-2-git-send-email-s.hauer@pengutronix.de> In-Reply-To: <1402401353-13704-1-git-send-email-s.hauer@pengutronix.de> References: <1402401353-13704-1-git-send-email-s.hauer@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 2/2] mtd: partition: implement lock/unlock To: barebox@lists.infradead.org CFI Nor flashes need lock/unlock which is not implemented for partitions. Fix this. Signed-off-by: Sascha Hauer --- drivers/mtd/partition.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/drivers/mtd/partition.c b/drivers/mtd/partition.c index 52d0c94..5c0d46f 100644 --- a/drivers/mtd/partition.c +++ b/drivers/mtd/partition.c @@ -49,6 +49,32 @@ static int mtd_part_erase(struct mtd_info *mtd, struct erase_info *instr) return ret; } +static int mtd_part_lock(struct mtd_info *mtd, loff_t offset, size_t len) +{ + if (!(mtd->flags & MTD_WRITEABLE)) + return -EROFS; + + if (offset + len > mtd->size) + return -EINVAL; + + offset += mtd->master_offset; + + return mtd->master->lock(mtd->master, offset, len); +} + +static int mtd_part_unlock(struct mtd_info *mtd, loff_t offset, size_t len) +{ + if (!(mtd->flags & MTD_WRITEABLE)) + return -EROFS; + + if (offset + len > mtd->size) + return -EINVAL; + + offset += mtd->master_offset; + + return mtd->master->unlock(mtd->master, offset, len); +} + static int mtd_part_block_isbad(struct mtd_info *mtd, loff_t ofs) { if (ofs >= mtd->size) @@ -122,6 +148,8 @@ struct mtd_info *mtd_add_partition(struct mtd_info *mtd, off_t offset, if (IS_ENABLED(CONFIG_MTD_WRITE)) { part->write = mtd_part_write; part->erase = mtd_part_erase; + part->lock = mtd_part_lock; + part->unlock = mtd_part_unlock; part->block_markbad = mtd->block_markbad ? mtd_part_block_markbad : NULL; } -- 2.0.0.rc2 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox