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>,
<linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>
Cc: Boris Brezillon <boris.brezillon@collabora.com>,
Sekhar Nori <nsekhar@ti.com>, Pratyush Yadav <p.yadav@ti.com>
Subject: [PATCH v13 12/15] mtd: spi-nor: core: disable Octal DTR mode on suspend.
Date: Wed, 16 Sep 2020 18:14:15 +0530 [thread overview]
Message-ID: <20200916124418.833-13-p.yadav@ti.com> (raw)
In-Reply-To: <20200916124418.833-1-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 853dfa02f0de..d5c92c9c7307 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -3212,6 +3212,23 @@ 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)
{
@@ -3406,6 +3423,7 @@ 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) {
--
2.28.0
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next prev parent reply other threads:[~2020-09-16 12:46 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-16 12:44 [PATCH v13 00/15] mtd: spi-nor: add xSPI Octal DTR support Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 01/15] mtd: spi-nor: core: use EOPNOTSUPP instead of ENOTSUPP Pratyush Yadav
2020-09-29 11:30 ` Tudor.Ambarus
2020-09-16 12:44 ` [PATCH v13 02/15] mtd: spi-nor: core: add spi_nor_{read, write}_reg() helpers Pratyush Yadav
2020-09-29 11:38 ` [PATCH v13 02/15] mtd: spi-nor: core: add spi_nor_{read,write}_reg() helpers Tudor.Ambarus
2020-09-29 12:54 ` Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 03/15] mtd: spi-nor: core: add spi_nor_controller_ops_erase helper Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 04/15] mtd: spi-nor: add support for DTR protocol Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 05/15] mtd: spi-nor: sfdp: get command opcode extension type from BFPT Pratyush Yadav
2020-09-30 6:17 ` Tudor.Ambarus
2020-09-16 12:44 ` [PATCH v13 06/15] mtd: spi-nor: sfdp: parse xSPI Profile 1.0 table Pratyush Yadav
2020-09-30 6:44 ` Tudor.Ambarus
2020-09-30 6:53 ` Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 07/15] mtd: spi-nor: core: use dummy cycle and address width info from SFDP Pratyush Yadav
2020-09-30 6:46 ` Tudor.Ambarus
2020-09-16 12:44 ` [PATCH v13 08/15] mtd: spi-nor: core: do 2 byte reads for SR and FSR in DTR mode Pratyush Yadav
2020-09-30 6:50 ` Tudor.Ambarus
2020-09-30 6:55 ` Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 09/15] mtd: spi-nor: core: enable octal DTR mode when possible Pratyush Yadav
2020-09-29 11:26 ` Tudor.Ambarus
2020-09-29 12:51 ` Pratyush Yadav
2020-09-29 13:05 ` Tudor.Ambarus
2020-09-30 7:11 ` Tudor.Ambarus
2020-09-16 12:44 ` [PATCH v13 10/15] mtd: spi-nor: sfdp: detect Soft Reset sequence support from BFPT Pratyush Yadav
2020-09-30 7:23 ` Tudor.Ambarus
2020-09-30 7:31 ` Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 11/15] mtd: spi-nor: core: perform a Soft Reset on shutdown Pratyush Yadav
2020-09-29 13:08 ` Pratyush Yadav
2020-09-30 7:32 ` Tudor.Ambarus
2020-09-30 7:43 ` Pratyush Yadav
2020-09-16 12:44 ` Pratyush Yadav [this message]
2020-09-30 7:40 ` [PATCH v13 12/15] mtd: spi-nor: core: disable Octal DTR mode on suspend Tudor.Ambarus
2020-09-30 7:44 ` Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 13/15] mtd: spi-nor: core: expose spi_nor_default_setup() in core.h Pratyush Yadav
2020-09-30 7:51 ` Tudor.Ambarus
2020-09-30 8:03 ` Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 14/15] mtd: spi-nor: spansion: add support for Cypress Semper flash Pratyush Yadav
2020-09-30 8:36 ` Tudor.Ambarus
2020-09-30 12:32 ` Pratyush Yadav
2020-09-16 12:44 ` [PATCH v13 15/15] mtd: spi-nor: micron-st: allow using MT35XU512ABA in Octal DTR mode Pratyush Yadav
2020-09-30 9:12 ` Tudor.Ambarus
2020-09-29 9:59 ` [RFC PATCH 0/3] mtd: spi-nor: Tackle stateful modes Tudor Ambarus
2020-09-29 9:59 ` [RFC PATCH 1/3] mtd: spi-nor: Introduce SNOR_F_IO_MODE_EN_VOLATILE Tudor Ambarus
2020-09-29 16:45 ` Vignesh Raghavendra
2020-09-29 9:59 ` [RFC PATCH 2/3] mtd: spi-nor: Introduce MTD_SPI_NOR_ALLOW_STATEFUL_MODES Tudor Ambarus
2020-09-29 16:45 ` Vignesh Raghavendra
2020-09-29 9:59 ` [RFC PATCH 3/3] mtd: spi-nor: Parse SFDP SCCR Map Tudor Ambarus
2020-09-30 9:57 ` [PATCH v13 00/15] mtd: spi-nor: add xSPI Octal DTR support Tudor.Ambarus
2020-09-30 12:01 ` Pratyush Yadav
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