From: Pratyush Yadav <p.yadav@ti.com>
To: Tudor Ambarus <tudor.ambarus@microchip.com>,
Miquel Raynal <miquel.raynal@bootlin.com>,
Richard Weinberger <richard@nod.at>,
Vignesh Raghavendra <vigneshr@ti.com>,
Mark Brown <broonie@kernel.org>,
Nicolas Ferre <nicolas.ferre@microchip.com>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Ludovic Desroches <ludovic.desroches@microchip.com>,
<linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
<linux-spi@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>
Cc: Sekhar Nori <nsekhar@ti.com>, Pratyush Yadav <p.yadav@ti.com>
Subject: [PATCH v4 13/16] mtd: spi-nor: Disable Octal DTR mode on suspend.
Date: Sat, 25 Apr 2020 00:14:07 +0530 [thread overview]
Message-ID: <20200424184410.8578-14-p.yadav@ti.com> (raw)
In-Reply-To: <20200424184410.8578-1-p.yadav@ti.com>
On resume, the init procedure will be run that will re-enable it.
Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
---
drivers/mtd/spi-nor/core.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index b0f94d6d28bf..b9b9c2b9a3da 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -3227,6 +3227,23 @@ static void spi_nor_soft_reset(struct spi_nor *nor)
usleep_range(SPI_NOR_SRST_SLEEP_MIN, SPI_NOR_SRST_SLEEP_MAX);
}
+/* mtd suspend handler */
+static int spi_nor_suspend(struct mtd_info *mtd)
+{
+ struct spi_nor *nor = mtd_to_spi_nor(mtd);
+ struct device *dev = nor->dev;
+ int ret;
+
+ /* Disable octal DTR mode if we enabled it. */
+ ret = spi_nor_octal_dtr_enable(nor, false);
+ if (ret) {
+ dev_err(dev, "suspend() failed\n");
+ return ret;
+ }
+
+ return 0;
+}
+
/* mtd resume handler */
static void spi_nor_resume(struct mtd_info *mtd)
{
@@ -3420,6 +3437,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name,
mtd->size = nor->params->size;
mtd->_erase = spi_nor_erase;
mtd->_read = spi_nor_read;
+ mtd->_suspend = spi_nor_suspend;
mtd->_resume = spi_nor_resume;
if (nor->params->locking_ops) {
--
2.25.0
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
next prev parent reply other threads:[~2020-04-24 18:53 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-24 18:43 [PATCH v4 00/16] mtd: spi-nor: add xSPI Octal DTR support Pratyush Yadav
2020-04-24 18:43 ` [PATCH v4 01/16] spi: spi-mem: allow specifying whether an op is DTR or not Pratyush Yadav
2020-04-24 18:43 ` [PATCH v4 02/16] spi: atmel-quadspi: reject DTR ops Pratyush Yadav
2020-04-30 11:32 ` Mark Brown
2020-04-30 12:17 ` Pratyush Yadav
2020-04-30 12:19 ` Mark Brown
2020-04-24 18:43 ` [PATCH v4 03/16] spi: spi-mem: allow specifying a command's extension Pratyush Yadav
2020-04-24 18:43 ` [PATCH v4 04/16] mtd: spi-nor: add support for DTR protocol Pratyush Yadav
2020-04-24 18:43 ` [PATCH v4 05/16] mtd: spi-nor: default to address width of 3 for configurable widths Pratyush Yadav
2020-04-26 3:53 ` Yicong Yang
2020-04-27 17:23 ` Pratyush Yadav
2020-04-28 1:34 ` Yicong Yang
2020-04-28 5:25 ` Tudor.Ambarus
2020-04-24 18:44 ` [PATCH v4 06/16] mtd: spi-nor: prepare BFPT parsing for JESD216 rev D Pratyush Yadav
2020-04-24 18:44 ` [PATCH v4 07/16] mtd: spi-nor: get command opcode extension type from BFPT Pratyush Yadav
2020-04-24 18:44 ` [PATCH v4 08/16] mtd: spi-nor: parse xSPI Profile 1.0 table Pratyush Yadav
2020-04-24 18:44 ` [PATCH v4 09/16] mtd: spi-nor: use dummy cycle and address width info from SFDP Pratyush Yadav
2020-04-24 18:44 ` [PATCH v4 10/16] mtd: spi-nor: do 2 byte reads for SR and FSR in DTR mode Pratyush Yadav
2020-04-24 18:44 ` [PATCH v4 11/16] mtd: spi-nor: enable octal DTR mode when possible Pratyush Yadav
2020-04-24 18:44 ` [PATCH v4 12/16] mtd: spi-nor: perform a Soft Reset on shutdown Pratyush Yadav
2020-05-10 11:22 ` Tudor.Ambarus
2020-05-11 18:01 ` Pratyush Yadav
2020-04-24 18:44 ` Pratyush Yadav [this message]
2020-04-24 18:44 ` [PATCH v4 14/16] mtd: spi-nor: expose spi_nor_default_setup() in core.h Pratyush Yadav
2020-04-24 18:44 ` [PATCH v4 15/16] mtd: spi-nor: add support for Cypress Semper flash Pratyush Yadav
2020-04-24 18:44 ` [PATCH v4 16/16] mtd: spi-nor: allow using MT35XU512ABA in Octal DTR mode Pratyush Yadav
2020-05-11 9:00 ` [PATCH v4 00/16] mtd: spi-nor: add xSPI Octal DTR support Tudor.Ambarus
2020-05-11 9:27 ` Boris Brezillon
2020-05-11 18:24 ` Pratyush Yadav
2020-05-12 6:16 ` Tudor.Ambarus
2020-05-12 9:49 ` Vignesh Raghavendra
2020-05-12 11:29 ` Tudor.Ambarus
2020-05-12 18:46 ` Pratyush Yadav
2020-05-11 9:43 ` Vignesh Raghavendra
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200424184410.8578-14-p.yadav@ti.com \
--to=p.yadav@ti.com \
--cc=alexandre.belloni@bootlin.com \
--cc=broonie@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mtd@lists.infradead.org \
--cc=linux-spi@vger.kernel.org \
--cc=ludovic.desroches@microchip.com \
--cc=miquel.raynal@bootlin.com \
--cc=nicolas.ferre@microchip.com \
--cc=nsekhar@ti.com \
--cc=richard@nod.at \
--cc=tudor.ambarus@microchip.com \
--cc=vigneshr@ti.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).