Linux-mtd Archive on lore.kernel.org
 help / color / Atom feed
From: <Tudor.Ambarus@microchip.com>
To: <marek.vasut@gmail.com>, <miquel.raynal@bootlin.com>,
	<richard@nod.at>, <vigneshr@ti.com>, <joel@jms.id.au>,
	<andrew@aj.id.au>, <matthias.bgg@gmail.com>, <vz@mleia.com>,
	<boris.brezillon@collabora.com>, <linux-mtd@lists.infradead.org>,
	<linux-arm-kernel@lists.infradead.org>
Cc: Tudor.Ambarus@microchip.com
Subject: [PATCH 03/13] mtd: spi-nor: cadence-quadspi: Fix cqspi_command_read() definition
Date: Wed, 11 Sep 2019 09:40:53 +0000
Message-ID: <20190911094031.17615-4-tudor.ambarus@microchip.com> (raw)
In-Reply-To: <20190911094031.17615-1-tudor.ambarus@microchip.com>

From: Tudor Ambarus <tudor.ambarus@microchip.com>

n_tx was never used, drop it. Replace 'const u8 *txbuf' with 'u8 opcode',
to comply with the SPI NOR int (*read_reg)() method. The 'const'
qualifier has no meaning for parameters passed by value, drop it.
Going furher, the opcode was passed to cqspi_calc_rdreg() - drop it,
as it was never used.

Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
---
 drivers/mtd/spi-nor/cadence-quadspi.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/mtd/spi-nor/cadence-quadspi.c b/drivers/mtd/spi-nor/cadence-quadspi.c
index ebda612641a4..22008fecd326 100644
--- a/drivers/mtd/spi-nor/cadence-quadspi.c
+++ b/drivers/mtd/spi-nor/cadence-quadspi.c
@@ -285,7 +285,7 @@ static irqreturn_t cqspi_irq_handler(int this_irq, void *dev)
 	return IRQ_HANDLED;
 }
 
-static unsigned int cqspi_calc_rdreg(struct spi_nor *nor, const u8 opcode)
+static unsigned int cqspi_calc_rdreg(struct spi_nor *nor)
 {
 	struct cqspi_flash_pdata *f_pdata = nor->priv;
 	u32 rdreg = 0;
@@ -354,8 +354,7 @@ static int cqspi_exec_flash_cmd(struct cqspi_st *cqspi, unsigned int reg)
 	return cqspi_wait_idle(cqspi);
 }
 
-static int cqspi_command_read(struct spi_nor *nor,
-			      const u8 *txbuf, const unsigned n_tx,
+static int cqspi_command_read(struct spi_nor *nor, u8 opcode,
 			      u8 *rxbuf, size_t n_rx)
 {
 	struct cqspi_flash_pdata *f_pdata = nor->priv;
@@ -373,9 +372,9 @@ static int cqspi_command_read(struct spi_nor *nor,
 		return -EINVAL;
 	}
 
-	reg = txbuf[0] << CQSPI_REG_CMDCTRL_OPCODE_LSB;
+	reg = opcode << CQSPI_REG_CMDCTRL_OPCODE_LSB;
 
-	rdreg = cqspi_calc_rdreg(nor, txbuf[0]);
+	rdreg = cqspi_calc_rdreg(nor);
 	writel(rdreg, reg_base + CQSPI_REG_RD_INSTR);
 
 	reg |= (0x1 << CQSPI_REG_CMDCTRL_RD_EN_LSB);
@@ -471,7 +470,7 @@ static int cqspi_read_setup(struct spi_nor *nor)
 	unsigned int reg;
 
 	reg = nor->read_opcode << CQSPI_REG_RD_INSTR_OPCODE_LSB;
-	reg |= cqspi_calc_rdreg(nor, nor->read_opcode);
+	reg |= cqspi_calc_rdreg(nor);
 
 	/* Setup dummy clock cycles */
 	dummy_clk = nor->read_dummy;
@@ -604,7 +603,7 @@ static int cqspi_write_setup(struct spi_nor *nor)
 	/* Set opcode. */
 	reg = nor->program_opcode << CQSPI_REG_WR_INSTR_OPCODE_LSB;
 	writel(reg, reg_base + CQSPI_REG_WR_INSTR);
-	reg = cqspi_calc_rdreg(nor, nor->program_opcode);
+	reg = cqspi_calc_rdreg(nor);
 	writel(reg, reg_base + CQSPI_REG_RD_INSTR);
 
 	reg = readl(reg_base + CQSPI_REG_SIZE);
@@ -1087,7 +1086,7 @@ static int cqspi_read_reg(struct spi_nor *nor, u8 opcode, u8 *buf, size_t len)
 
 	ret = cqspi_set_protocol(nor, 0);
 	if (!ret)
-		ret = cqspi_command_read(nor, &opcode, 1, buf, len);
+		ret = cqspi_command_read(nor, opcode, buf, len);
 
 	return ret;
 }
-- 
2.9.5


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

  parent reply index

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-11  9:40 [PATCH 00/13] mtd: spi-nor: Clean Flash Register operations Tudor.Ambarus
2019-09-11  9:40 ` [PATCH 01/13] mtd: spi-nor: hisi-sfc: Drop nor->erase NULL asignment Tudor.Ambarus
2019-09-11  9:40 ` [PATCH 02/13] mtd: spi-nor: Introduce 'struct spi_nor_controller_ops' Tudor.Ambarus
2019-09-11  9:40 ` Tudor.Ambarus [this message]
2019-09-11  9:40 ` [PATCH 04/13] mtd: spi-nor: Rename nor->params to nor->flash Tudor.Ambarus
2019-09-11  9:41 ` [PATCH 05/13] mtd: spi-nor: Rework read_sr() Tudor.Ambarus
2019-09-11  9:41 ` [PATCH 06/13] mtd: spi-nor: Rework read_fsr() Tudor.Ambarus
2019-09-11  9:41 ` [PATCH 07/13] mtd: spi-nor: Rework read_cr() Tudor.Ambarus
2019-09-11  9:41 ` [PATCH 08/13] mtd: spi-nor: Rework write_enable/disable() Tudor.Ambarus
2019-09-11  9:41 ` [PATCH 09/13] mtd: spi-nor: Rework write_sr() Tudor.Ambarus
2019-09-11  9:41 ` [PATCH 10/13] mtd: spi-nor: Rework spi_nor_read/write_sr2() Tudor.Ambarus
2019-09-11  9:41 ` [PATCH 11/13] mtd: spi-nor: Report error in spi_nor_xread_sr() Tudor.Ambarus
2019-09-11  9:41 ` [PATCH 12/13] mtd: spi-nor: Void return type for spi_nor_clear_sr/fsr() Tudor.Ambarus
2019-09-11  9:41 ` [PATCH 13/13] mtd: spi-nor: Drop duplicated new line Tudor.Ambarus

Reply instructions:

You may reply publically 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=20190911094031.17615-4-tudor.ambarus@microchip.com \
    --to=tudor.ambarus@microchip.com \
    --cc=andrew@aj.id.au \
    --cc=boris.brezillon@collabora.com \
    --cc=joel@jms.id.au \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-mtd@lists.infradead.org \
    --cc=marek.vasut@gmail.com \
    --cc=matthias.bgg@gmail.com \
    --cc=miquel.raynal@bootlin.com \
    --cc=richard@nod.at \
    --cc=vigneshr@ti.com \
    --cc=vz@mleia.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

Linux-mtd Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-mtd/0 linux-mtd/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-mtd linux-mtd/ https://lore.kernel.org/linux-mtd \
		linux-mtd@lists.infradead.org linux-mtd@archiver.kernel.org
	public-inbox-index linux-mtd


Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.infradead.lists.linux-mtd


AGPL code for this site: git clone https://public-inbox.org/ public-inbox