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>,
Matthias Brugger <matthias.bgg@gmail.com>,
Michal Simek <michal.simek@xilinx.com>,
<linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
<linux-spi@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>
Cc: Boris Brezillon <boris.brezillon@collabora.com>,
Sekhar Nori <nsekhar@ti.com>, Pratyush Yadav <p.yadav@ti.com>
Subject: [PATCH v10 14/17] mtd: spi-nor: core: disable Octal DTR mode on suspend.
Date: Wed, 24 Jun 2020 00:00:27 +0530 [thread overview]
Message-ID: <20200623183030.26591-15-p.yadav@ti.com> (raw)
In-Reply-To: <20200623183030.26591-1-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 27ad9bab06dc..369d754988f0 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -3239,6 +3239,23 @@ 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)
{
@@ -3432,6 +3449,7 @@ 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) {
--
2.27.0
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next prev parent reply other threads:[~2020-06-23 18:41 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-23 18:30 [PATCH v10 00/17] mtd: spi-nor: add xSPI Octal DTR support Pratyush Yadav
2020-06-23 18:30 ` [PATCH v10 01/17] spi: spi-mem: allow specifying whether an op is DTR or not Pratyush Yadav
2020-07-08 16:22 ` Tudor.Ambarus
2020-07-13 3:55 ` Tudor.Ambarus
2020-06-23 18:30 ` [PATCH v10 02/17] spi: spi-mem: allow specifying a command's extension Pratyush Yadav
2020-07-13 6:15 ` Tudor.Ambarus
2020-06-23 18:30 ` [PATCH v10 03/17] spi: atmel-quadspi: reject DTR ops Pratyush Yadav
2020-07-13 6:19 ` Tudor.Ambarus
2020-06-23 18:30 ` [PATCH v10 04/17] spi: spi-mtk-nor: " Pratyush Yadav
2020-07-13 6:24 ` Tudor.Ambarus
2020-06-23 18:30 ` [PATCH v10 05/17] mtd: spi-nor: add support for DTR protocol Pratyush Yadav
2020-07-07 17:37 ` Tudor.Ambarus
2020-07-21 11:29 ` Pratyush Yadav
2020-09-29 15:42 ` Tudor.Ambarus
2020-09-29 16:29 ` Pratyush Yadav
2020-09-29 18:34 ` Tudor.Ambarus
2020-09-29 16:57 ` Vignesh Raghavendra
2020-06-23 18:30 ` [PATCH v10 06/17] mtd: spi-nor: sfdp: get command opcode extension type from BFPT Pratyush Yadav
2020-07-07 17:53 ` Tudor.Ambarus
2020-06-23 18:30 ` [PATCH v10 07/17] mtd: spi-nor: sfdp: parse xSPI Profile 1.0 table Pratyush Yadav
2020-07-08 16:01 ` Tudor.Ambarus
2020-07-20 16:38 ` Pratyush Yadav
2020-06-23 18:30 ` [PATCH v10 08/17] mtd: spi-nor: core: use dummy cycle and address width info from SFDP Pratyush Yadav
2020-07-08 16:03 ` Tudor.Ambarus
2020-07-20 16:24 ` Pratyush Yadav
2020-06-23 18:30 ` [PATCH v10 09/17] mtd: spi-nor: core: do 2 byte reads for SR and FSR in DTR mode Pratyush Yadav
2020-06-23 18:30 ` [PATCH v10 10/17] mtd: spi-nor: core: enable octal DTR mode when possible Pratyush Yadav
2020-06-23 18:30 ` [PATCH v10 11/17] mtd: spi-nor: sfdp: do not make invalid quad enable fatal Pratyush Yadav
2020-07-13 9:33 ` Tudor.Ambarus
2020-06-23 18:30 ` [PATCH v10 12/17] mtd: spi-nor: sfdp: detect Soft Reset sequence support from BFPT Pratyush Yadav
2020-07-08 16:08 ` Tudor.Ambarus
2020-07-20 16:21 ` Pratyush Yadav
2020-06-23 18:30 ` [PATCH v10 13/17] mtd: spi-nor: core: perform a Soft Reset on shutdown Pratyush Yadav
2020-07-08 16:10 ` Tudor.Ambarus
2020-07-20 16:11 ` Pratyush Yadav
2020-06-23 18:30 ` Pratyush Yadav [this message]
2020-06-23 18:30 ` [PATCH v10 15/17] mtd: spi-nor: core: expose spi_nor_default_setup() in core.h Pratyush Yadav
2020-06-23 18:30 ` [PATCH v10 16/17] mtd: spi-nor: spansion: add support for Cypress Semper flash Pratyush Yadav
2020-06-23 18:30 ` [PATCH v10 17/17] mtd: spi-nor: micron-st: allow using MT35XU512ABA in Octal DTR mode Pratyush Yadav
2020-07-13 6:34 ` [PATCH v10 00/17] mtd: spi-nor: add xSPI Octal DTR support Tudor.Ambarus
2020-07-14 19:19 ` Mark Brown
2020-07-15 3:40 ` Tudor.Ambarus
2020-07-14 16:40 ` Mark Brown
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