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From: Vignesh Raghavendra <vigneshr@ti.com>
To: Tudor Ambarus <tudor.ambarus@microchip.com>,
	Mark Brown <broonie@kernel.org>
Cc: Vignesh Raghavendra <vigneshr@ti.com>,
	Boris Brezillon <bbrezillon@kernel.org>,
	Ramuthevar Vadivel Murugan 
	<vadivel.muruganx.ramuthevar@linux.intel.com>,
	<linux-mtd@lists.infradead.org>, <linux-kernel@vger.kernel.org>,
	<linux-spi@vger.kernel.org>, <simon.k.r.goldschmidt@gmail.com>,
	<dinguyen@kernel.org>, <marex@denx.de>
Subject: [RESEND PATCH v3 6/8] mtd: spi-nor: cadence-quadspi: Drop redundant WREN in erase path
Date: Mon, 1 Jun 2020 12:34:42 +0530	[thread overview]
Message-ID: <20200601070444.16923-7-vigneshr@ti.com> (raw)
In-Reply-To: <20200601070444.16923-1-vigneshr@ti.com>

Drop redundant WREN command in cqspi_erase() as SPI NOR core takes care
of sending WREN command before sending erase command.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
---
 drivers/mtd/spi-nor/controllers/cadence-quadspi.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/mtd/spi-nor/controllers/cadence-quadspi.c b/drivers/mtd/spi-nor/controllers/cadence-quadspi.c
index 0570ebca135a9..6b1cbad25e3f6 100644
--- a/drivers/mtd/spi-nor/controllers/cadence-quadspi.c
+++ b/drivers/mtd/spi-nor/controllers/cadence-quadspi.c
@@ -1016,11 +1016,6 @@ static int cqspi_erase(struct spi_nor *nor, loff_t offs)
 	if (ret)
 		return ret;
 
-	/* Send write enable, then erase commands. */
-	ret = nor->controller_ops->write_reg(nor, SPINOR_OP_WREN, NULL, 0);
-	if (ret)
-		return ret;
-
 	/* Set up command buffer. */
 	ret = cqspi_command_write_addr(nor, nor->erase_opcode, offs);
 	if (ret)
-- 
2.26.2


WARNING: multiple messages have this Message-ID (diff)
From: Vignesh Raghavendra <vigneshr@ti.com>
To: Tudor Ambarus <tudor.ambarus@microchip.com>,
	Mark Brown <broonie@kernel.org>
Cc: marex@denx.de, Vignesh Raghavendra <vigneshr@ti.com>,
	Boris Brezillon <bbrezillon@kernel.org>,
	dinguyen@kernel.org, simon.k.r.goldschmidt@gmail.com,
	linux-kernel@vger.kernel.org, linux-spi@vger.kernel.org,
	Ramuthevar Vadivel Murugan
	<vadivel.muruganx.ramuthevar@linux.intel.com>,
	linux-mtd@lists.infradead.org
Subject: [RESEND PATCH v3 6/8] mtd: spi-nor: cadence-quadspi: Drop redundant WREN in erase path
Date: Mon, 1 Jun 2020 12:34:42 +0530	[thread overview]
Message-ID: <20200601070444.16923-7-vigneshr@ti.com> (raw)
In-Reply-To: <20200601070444.16923-1-vigneshr@ti.com>

Drop redundant WREN command in cqspi_erase() as SPI NOR core takes care
of sending WREN command before sending erase command.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
---
 drivers/mtd/spi-nor/controllers/cadence-quadspi.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/mtd/spi-nor/controllers/cadence-quadspi.c b/drivers/mtd/spi-nor/controllers/cadence-quadspi.c
index 0570ebca135a9..6b1cbad25e3f6 100644
--- a/drivers/mtd/spi-nor/controllers/cadence-quadspi.c
+++ b/drivers/mtd/spi-nor/controllers/cadence-quadspi.c
@@ -1016,11 +1016,6 @@ static int cqspi_erase(struct spi_nor *nor, loff_t offs)
 	if (ret)
 		return ret;
 
-	/* Send write enable, then erase commands. */
-	ret = nor->controller_ops->write_reg(nor, SPINOR_OP_WREN, NULL, 0);
-	if (ret)
-		return ret;
-
 	/* Set up command buffer. */
 	ret = cqspi_command_write_addr(nor, nor->erase_opcode, offs);
 	if (ret)
-- 
2.26.2


______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

  parent reply	other threads:[~2020-06-01  7:05 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-01  7:04 [RESEND PATCH v3 0/8] mtd: spi-nor: Move cadence-qaudspi to spi-mem framework Vignesh Raghavendra
2020-06-01  7:04 ` Vignesh Raghavendra
2020-06-01  7:04 ` [RESEND PATCH v3 1/8] mtd: spi-nor: cadence-quadspi: Make driver independent of flash geometry Vignesh Raghavendra
2020-06-01  7:04   ` Vignesh Raghavendra
2020-06-01  7:04 ` [RESEND PATCH v3 2/8] mtd: spi-nor: cadence-quadspi: Provide a way to disable DAC mode Vignesh Raghavendra
2020-06-01  7:04   ` Vignesh Raghavendra
2020-06-01  7:04 ` [RESEND PATCH v3 3/8] mtd: spi-nor: cadence-quadspi: Don't initialize rx_dma_complete on failure Vignesh Raghavendra
2020-06-01  7:04   ` Vignesh Raghavendra
2020-06-01  7:04 ` [RESEND PATCH v3 4/8] mtd: spi-nor: cadence-quadspi: Fix error path on failure to acquire reset lines Vignesh Raghavendra
2020-06-01  7:04   ` Vignesh Raghavendra
2020-06-01  7:04 ` [RESEND PATCH v3 5/8] mtd: spi-nor: cadence-quadspi: Handle probe deferral while requesting DMA channel Vignesh Raghavendra
2020-06-01  7:04   ` Vignesh Raghavendra
2020-08-22 18:05   ` Jan Kiszka
2020-08-22 18:05     ` Jan Kiszka
2020-08-24 11:45     ` Vignesh Raghavendra
2020-08-24 11:45       ` Vignesh Raghavendra
2020-08-24 12:49       ` Jan Kiszka
2020-08-24 12:49         ` Jan Kiszka
2020-08-24 17:20         ` Jan Kiszka
2020-08-24 17:20           ` Jan Kiszka
2020-08-26 10:12           ` Jan Kiszka
2020-08-26 10:12             ` Jan Kiszka
2020-08-26 12:18             ` Vignesh Raghavendra
2020-08-26 12:18               ` Vignesh Raghavendra
2020-08-26 13:31               ` Jan Kiszka
2020-08-26 13:31                 ` Jan Kiszka
2020-08-27  7:04                 ` Vignesh Raghavendra
2020-08-27  7:04                   ` Vignesh Raghavendra
2020-08-25  3:12         ` Jin, Le
2020-08-25  3:12           ` Jin, Le
2020-06-01  7:04 ` Vignesh Raghavendra [this message]
2020-06-01  7:04   ` [RESEND PATCH v3 6/8] mtd: spi-nor: cadence-quadspi: Drop redundant WREN in erase path Vignesh Raghavendra
2020-06-01  7:04 ` [RESEND PATCH v3 7/8] mtd: spi-nor: Convert cadence-quadspi to use spi-mem framework Vignesh Raghavendra
2020-06-01  7:04   ` Vignesh Raghavendra
2020-08-24  5:55   ` Jan Kiszka
2020-08-24  5:55     ` Jan Kiszka
2020-08-24 11:44     ` Vignesh Raghavendra
2020-08-24 11:44       ` Vignesh Raghavendra
2020-08-24 12:04       ` Boris Brezillon
2020-08-24 12:04         ` Boris Brezillon
2020-08-24 13:52         ` Jan Kiszka
2020-08-24 13:52           ` Jan Kiszka
2020-08-24 12:06       ` Jan Kiszka
2020-08-24 12:06         ` Jan Kiszka
2020-06-01  7:04 ` [RESEND PATCH v3 8/8] spi: Move cadence-quadspi driver to drivers/spi/ Vignesh Raghavendra
2020-06-01  7:04   ` Vignesh Raghavendra
2020-06-19 10:57 ` [RESEND PATCH v3 0/8] mtd: spi-nor: Move cadence-qaudspi to spi-mem framework Mark Brown
2020-06-19 10:57   ` Mark Brown
2020-06-19 11:47   ` Tudor.Ambarus
2020-06-19 11:47     ` Tudor.Ambarus
2020-06-19 15:17     ` Mark Brown
2020-06-19 15:17       ` Mark Brown
2020-06-26  9:25       ` Tudor.Ambarus
2020-06-26  9:25         ` Tudor.Ambarus
2020-06-19 13:28 ` Mark Brown
2020-06-19 13:28   ` Mark Brown

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