mtd: spi-nor: drop replaceable wait-till-ready function pointer
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Mon Dec 15 19:59:05 PST 2014
Gitweb: http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=b94ed087744c5bc287d2ed706b476693df07151d
Commit: b94ed087744c5bc287d2ed706b476693df07151d
Parent: 8fdc6cd45891d26e2c82ad22cc6f85cbb4d526d2
Author: Brian Norris <computersforpeace at gmail.com>
AuthorDate: Wed Aug 6 18:17:00 2014 -0700
Committer: Brian Norris <computersforpeace at gmail.com>
CommitDate: Wed Nov 5 02:08:21 2014 -0800
mtd: spi-nor: drop replaceable wait-till-ready function pointer
We don't need to expose a 'wait-till-ready' interface to drivers. Status
register polling should be handled by the core spi-nor.c library, and as
of now, I see no need to provide a special driver-specific hook for it.
Signed-off-by: Brian Norris <computersforpeace at gmail.com>
Reviewed-by: Marek Vasut <marex at denx.de>
---
drivers/mtd/spi-nor/spi-nor.c | 28 ++++++++++------------------
include/linux/mtd/spi-nor.h | 2 --
2 files changed, 10 insertions(+), 20 deletions(-)
diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index 93cd104..bfb67f1 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -195,6 +195,10 @@ static int spi_nor_ready(struct spi_nor *nor)
return sr && fsr;
}
+/*
+ * Service routine to read status register until ready, or timeout occurs.
+ * Returns non-zero if error.
+ */
static int spi_nor_wait_till_ready(struct spi_nor *nor)
{
unsigned long deadline;
@@ -216,15 +220,6 @@ static int spi_nor_wait_till_ready(struct spi_nor *nor)
}
/*
- * Service routine to read status register until ready, or timeout occurs.
- * Returns non-zero if error.
- */
-static int wait_till_ready(struct spi_nor *nor)
-{
- return nor->wait_till_ready(nor);
-}
-
-/*
* Erase the whole flash memory
*
* Returns 0 if successful, non-zero otherwise.
@@ -708,7 +703,7 @@ static int sst_write(struct mtd_info *mtd, loff_t to, size_t len,
/* write one byte. */
nor->write(nor, to, 1, retlen, buf);
- ret = wait_till_ready(nor);
+ ret = spi_nor_wait_till_ready(nor);
if (ret)
goto time_out;
}
@@ -720,7 +715,7 @@ static int sst_write(struct mtd_info *mtd, loff_t to, size_t len,
/* write two bytes. */
nor->write(nor, to, 2, retlen, buf + actual);
- ret = wait_till_ready(nor);
+ ret = spi_nor_wait_till_ready(nor);
if (ret)
goto time_out;
to += 2;
@@ -729,7 +724,7 @@ static int sst_write(struct mtd_info *mtd, loff_t to, size_t len,
nor->sst_write_second = false;
write_disable(nor);
- ret = wait_till_ready(nor);
+ ret = spi_nor_wait_till_ready(nor);
if (ret)
goto time_out;
@@ -740,7 +735,7 @@ static int sst_write(struct mtd_info *mtd, loff_t to, size_t len,
nor->program_opcode = SPINOR_OP_BP;
nor->write(nor, to, 1, retlen, buf + actual);
- ret = wait_till_ready(nor);
+ ret = spi_nor_wait_till_ready(nor);
if (ret)
goto time_out;
write_disable(nor);
@@ -786,7 +781,7 @@ static int spi_nor_write(struct mtd_info *mtd, loff_t to, size_t len,
if (page_size > nor->page_size)
page_size = nor->page_size;
- ret = wait_till_ready(nor);
+ ret = spi_nor_wait_till_ready(nor);
if (ret)
goto write_err;
@@ -812,7 +807,7 @@ static int macronix_quad_enable(struct spi_nor *nor)
nor->cmd_buf[0] = val | SR_QUAD_EN_MX;
nor->write_reg(nor, SPINOR_OP_WRSR, nor->cmd_buf, 1, 0);
- if (wait_till_ready(nor))
+ if (spi_nor_wait_till_ready(nor))
return 1;
ret = read_sr(nor);
@@ -892,9 +887,6 @@ static int spi_nor_check(struct spi_nor *nor)
return -EINVAL;
}
- if (!nor->wait_till_ready)
- nor->wait_till_ready = spi_nor_wait_till_ready;
-
return 0;
}
diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h
index d691025..63aeccf 100644
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -144,7 +144,6 @@ enum spi_nor_option_flags {
* @write_xfer: [OPTIONAL] the writefundamental primitive
* @read_reg: [DRIVER-SPECIFIC] read out the register
* @write_reg: [DRIVER-SPECIFIC] write data to the register
- * @wait_till_ready: [REPLACEABLE] wait till the NOR becomes ready
* @read: [DRIVER-SPECIFIC] read data from the SPI NOR
* @write: [DRIVER-SPECIFIC] write data to the SPI NOR
* @erase: [DRIVER-SPECIFIC] erase a sector of the SPI NOR
@@ -176,7 +175,6 @@ struct spi_nor {
int (*read_reg)(struct spi_nor *nor, u8 opcode, u8 *buf, int len);
int (*write_reg)(struct spi_nor *nor, u8 opcode, u8 *buf, int len,
int write_enable);
- int (*wait_till_ready)(struct spi_nor *nor);
int (*read)(struct spi_nor *nor, loff_t from,
size_t len, size_t *retlen, u_char *read_buf);
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