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block: constify sect_buf argument of ide_write_data

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Add a const keyword to the sect_buf argument of
ide_write_data to fix the following warning:

  cmd_ide.c: In function '__ide_output_data':
  cmd_ide.c:548: warning: passing argument 2 of 'ide_write_data' discards qualifiers from pointer target type
  /devel/u-boot.git/include/ide.h:76: note: expected 'ulong *' but argument is of type 'const ulong *'

Also modify the driver-model documentation to
match with the new prototype.

Compile tested only.

Cc: Macpaul Lin <macpaul@andestech.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
This commit is contained in:
Gabor Juhos 2013-05-26 12:11:28 +02:00 • committed by Macpaul Lin
parent dbb713baa6
commit c575180bae
3 changed files with 3 additions and 3 deletions
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2
doc/driver-model/UDM-block.txt
View file

@ -93,7 +93,7 @@ I) Overview
uchar ide_read_register(int dev, unsigned int port); uchar ide_read_register(int dev, unsigned int port);
void ide_write_register(int dev, unsigned int port, unsigned char val); void ide_write_register(int dev, unsigned int port, unsigned char val);
void ide_read_data(int dev, ulong *sect_buf, int words); void ide_read_data(int dev, ulong *sect_buf, int words);
void ide_write_data(int dev, ulong *sect_buf, int words); void ide_write_data(int dev, const ulong *sect_buf, int words);
The first two functions are called from ide_inb()/ide_outb(), and will The first two functions are called from ide_inb()/ide_outb(), and will
default to direct memory access if CONFIG_IDE_AHB is not set, or default to direct memory access if CONFIG_IDE_AHB is not set, or

2
drivers/block/ftide020.c
View file

@ -81,7 +81,7 @@ void ide_write_register(int dev, unsigned int port, unsigned char val)
IDE_REG_DA_WRITE(port) | val); IDE_REG_DA_WRITE(port) | val);
} }
void ide_write_data(int dev, ulong *sect_buf, int words) void ide_write_data(int dev, const ulong *sect_buf, int words)
{ {
static struct ftide020_s *ftide020 = (struct ftide020_s *) FTIDE_BASE; static struct ftide020_s *ftide020 = (struct ftide020_s *) FTIDE_BASE;

2
include/ide.h
View file

@ -76,7 +76,7 @@ int ide_device_present(int dev);
unsigned char ide_read_register(int dev, unsigned int port); unsigned char ide_read_register(int dev, unsigned int port);
void ide_write_register(int dev, unsigned int port, unsigned char val); void ide_write_register(int dev, unsigned int port, unsigned char val);
void ide_read_data(int dev, ulong *sect_buf, int words); void ide_read_data(int dev, ulong *sect_buf, int words);
void ide_write_data(int dev, ulong *sect_buf, int words); void ide_write_data(int dev, const ulong *sect_buf, int words);
#endif #endif
/* /*