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Date: Fri, 8 Feb 2019 17:08:51 +0900
From: Masahiro Yamada <yamada.masahiro@...ionext.com>
To: linux-mtd@...ts.infradead.org,
Miquel Raynal <miquel.raynal@...tlin.com>
Cc: Boris Brezillon <bbrezillon@...nel.org>,
Masahiro Yamada <yamada.masahiro@...ionext.com>,
Brian Norris <computersforpeace@...il.com>,
linux-kernel@...r.kernel.org, Marek Vasut <marek.vasut@...il.com>,
Richard Weinberger <richard@....at>,
David Woodhouse <dwmw2@...radead.org>
Subject: [PATCH 07/11] mtd: rawnand: denali: use bool type instead of int where appropriate
Use 'bool' type for some function arguments.
- write (write or read?)
- raw (the raw access mode or not?)
It is true that denali_nand_info::dma_avail is also boolean, but
I am keeping it as 'int' because 'scripts/checkpatch --strict' would
report the following:
CHECK: Avoid using bool structure members because of possible alignment issues
- see: https://lkml.org/lkml/2017/11/21/384
I do not think it is a matter here, but I am sticking to the suggestion.
Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
---
drivers/mtd/nand/raw/denali.c | 23 ++++++++++++-----------
drivers/mtd/nand/raw/denali.h | 2 +-
2 files changed, 13 insertions(+), 12 deletions(-)
diff --git a/drivers/mtd/nand/raw/denali.c b/drivers/mtd/nand/raw/denali.c
index 514d189..748711e 100644
--- a/drivers/mtd/nand/raw/denali.c
+++ b/drivers/mtd/nand/raw/denali.c
@@ -357,7 +357,7 @@ static int denali_sw_ecc_fixup(struct nand_chip *chip,
}
static void denali_setup_dma64(struct denali_nand_info *denali,
- dma_addr_t dma_addr, int page, int write)
+ dma_addr_t dma_addr, int page, bool write)
{
uint32_t mode;
const int page_count = 1;
@@ -371,7 +371,8 @@ static void denali_setup_dma64(struct denali_nand_info *denali,
* burst len = 64 bytes, the number of pages
*/
denali->host_write(denali, mode,
- 0x01002000 | (64 << 16) | (write << 8) | page_count);
+ 0x01002000 | (64 << 16) |
+ (write ? BIT(8) : 0) | page_count);
/* 2. set memory low address */
denali->host_write(denali, mode, lower_32_bits(dma_addr));
@@ -381,7 +382,7 @@ static void denali_setup_dma64(struct denali_nand_info *denali,
}
static void denali_setup_dma32(struct denali_nand_info *denali,
- dma_addr_t dma_addr, int page, int write)
+ dma_addr_t dma_addr, int page, bool write)
{
uint32_t mode;
const int page_count = 1;
@@ -392,7 +393,7 @@ static void denali_setup_dma32(struct denali_nand_info *denali,
/* 1. setup transfer type and # of pages */
denali->host_write(denali, mode | page,
- 0x2000 | (write << 8) | page_count);
+ 0x2000 | (write ? BIT(8) : 0) | page_count);
/* 2. set memory high address bits 23:8 */
denali->host_write(denali, mode | ((dma_addr >> 16) << 8), 0x2200);
@@ -453,7 +454,7 @@ static int denali_pio_write(struct denali_nand_info *denali, const u32 *buf,
}
static int denali_pio_xfer(struct denali_nand_info *denali, void *buf,
- size_t size, int page, int write)
+ size_t size, int page, bool write)
{
if (write)
return denali_pio_write(denali, buf, size, page);
@@ -462,7 +463,7 @@ static int denali_pio_xfer(struct denali_nand_info *denali, void *buf,
}
static int denali_dma_xfer(struct denali_nand_info *denali, void *buf,
- size_t size, int page, int write)
+ size_t size, int page, bool write)
{
dma_addr_t dma_addr;
u32 irq_mask, irq_stat, ecc_err_mask;
@@ -519,7 +520,7 @@ static int denali_dma_xfer(struct denali_nand_info *denali, void *buf,
}
static int denali_data_xfer(struct nand_chip *chip, void *buf, size_t size,
- int page, int raw, int write)
+ int page, bool raw, bool write)
{
struct denali_nand_info *denali = to_denali(chip);
@@ -644,7 +645,7 @@ static int denali_read_page_raw(struct nand_chip *chip, uint8_t *buf,
if (!buf)
return -EINVAL;
- ret = denali_data_xfer(chip, tmp_buf, size, page, 1, 0);
+ ret = denali_data_xfer(chip, tmp_buf, size, page, true, false);
if (ret)
return ret;
@@ -700,7 +701,7 @@ static int denali_write_page_raw(struct nand_chip *chip, const uint8_t *buf,
return ret;
}
- return denali_data_xfer(chip, tmp_buf, size, page, 1, 1);
+ return denali_data_xfer(chip, tmp_buf, size, page, true, true);
}
static int denali_change_read_column_op(void *buf, unsigned int offset,
@@ -752,7 +753,7 @@ static int denali_read_page(struct nand_chip *chip, uint8_t *buf,
int stat = 0;
int ret;
- ret = denali_data_xfer(chip, buf, mtd->writesize, page, 0, 0);
+ ret = denali_data_xfer(chip, buf, mtd->writesize, page, false, false);
if (ret && ret != -EBADMSG)
return ret;
@@ -782,7 +783,7 @@ static int denali_write_page(struct nand_chip *chip, const uint8_t *buf,
struct mtd_info *mtd = nand_to_mtd(chip);
return denali_data_xfer(chip, (void *)buf, mtd->writesize, page,
- 0, 1);
+ false, true);
}
static int denali_setup_data_interface(struct nand_chip *chip, int chipnr,
diff --git a/drivers/mtd/nand/raw/denali.h b/drivers/mtd/nand/raw/denali.h
index 46296f2..8e91438 100644
--- a/drivers/mtd/nand/raw/denali.h
+++ b/drivers/mtd/nand/raw/denali.h
@@ -314,7 +314,7 @@ struct denali_nand_info {
u32 (*host_read)(struct denali_nand_info *denali, u32 addr);
void (*host_write)(struct denali_nand_info *denali, u32 addr, u32 data);
void (*setup_dma)(struct denali_nand_info *denali, dma_addr_t dma_addr,
- int page, int write);
+ int page, bool write);
};
#define DENALI_CAP_HW_ECC_FIXUP BIT(0)
--
2.7.4
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