From: Michael Walle <michael@walle.cc>
To: linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org
Cc: Tudor Ambarus <tudor.ambarus@microchip.com>,
Pratyush Yadav <p.yadav@ti.com>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
Michael Walle <michael@walle.cc>
Subject: [RFC PATCH 2/3] mtd: spi-nor: sfdp: fix spi_nor_read_sfdp()
Date: Fri, 12 Mar 2021 20:05:47 +0100 [thread overview]
Message-ID: <20210312190548.6954-3-michael@walle.cc> (raw)
In-Reply-To: <20210312190548.6954-1-michael@walle.cc>
If spi_nor_read_sfdp() is used after probe, we have to set read_proto
and the read dirmap.
Signed-off-by: Michael Walle <michael@walle.cc>
---
drivers/mtd/spi-nor/sfdp.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/drivers/mtd/spi-nor/sfdp.c b/drivers/mtd/spi-nor/sfdp.c
index b1814afefc33..47634ec9b899 100644
--- a/drivers/mtd/spi-nor/sfdp.c
+++ b/drivers/mtd/spi-nor/sfdp.c
@@ -179,19 +179,27 @@ static int spi_nor_read_sfdp(struct spi_nor *nor, u32 addr,
size_t len, void *buf)
{
u8 addr_width, read_opcode, read_dummy;
+ struct spi_mem_dirmap_desc *rdesc;
+ enum spi_nor_protocol read_proto;
int ret;
read_opcode = nor->read_opcode;
+ read_proto = nor->read_proto;
+ rdesc = nor->dirmap.rdesc;
addr_width = nor->addr_width;
read_dummy = nor->read_dummy;
nor->read_opcode = SPINOR_OP_RDSFDP;
+ nor->read_proto = SNOR_PROTO_1_1_1;
+ nor->dirmap.rdesc = NULL;
nor->addr_width = 3;
nor->read_dummy = 8;
ret = spi_nor_read_raw(nor, addr, len, buf);
nor->read_opcode = read_opcode;
+ nor->read_proto = read_proto;
+ nor->dirmap.rdesc = rdesc;
nor->addr_width = addr_width;
nor->read_dummy = read_dummy;
--
2.20.1
next prev parent reply other threads:[~2021-03-12 19:07 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-12 19:05 [RFC PATCH 1/3] mtd: spi-nor: support dumping sfdp tables Michael Walle
2021-03-12 19:05 ` [RFC PATCH 1/3] mtd: spi-nor: sfdp: remember sfdp_size Michael Walle
2021-03-16 10:42 ` Pratyush Yadav
2021-03-16 11:01 ` Michael Walle
2021-03-16 11:06 ` Pratyush Yadav
2021-03-16 11:22 ` Michael Walle
2021-03-12 19:05 ` Michael Walle [this message]
2021-03-16 11:04 ` [RFC PATCH 2/3] mtd: spi-nor: sfdp: fix spi_nor_read_sfdp() Pratyush Yadav
2021-03-16 11:15 ` Michael Walle
2021-03-16 13:15 ` Pratyush Yadav
2021-03-12 19:05 ` [RFC PATCH 3/3] mtd: spi-nor: add sysfs and SFDP support Michael Walle
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