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mfd: allow reading entire register banks on twl4030

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Minor change to the TWL4030 utility interface:  support reads
of all 256 bytes in each register bank (vs just 255).  This
can help when debugging, but is otherwise a NOP.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>
This commit is contained in:
David Brownell 2008-11-08 01:13:16 +01:00 committed by Samuel Ortiz
parent 6748852634
commit 3fba19ec1a
2 changed files with 4 additions and 4 deletions
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4
drivers/mfd/twl4030-core.c
View File

@ -225,7 +225,7 @@ static struct twl4030mapping twl4030_map[TWL4030_MODULE_LAST + 1] = {
*
* Returns the result of operation - 0 is success
*/
int twl4030_i2c_write(u8 mod_no, u8 *value, u8 reg, u8 num_bytes)
int twl4030_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
{
int ret;
int sid;
@ -274,7 +274,7 @@ EXPORT_SYMBOL(twl4030_i2c_write);
*
* Returns result of operation - num_bytes is success else failure.
*/
int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, u8 num_bytes)
int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes)
{
int ret;
u8 val;

4
include/linux/i2c/twl4030.h
View File

@ -78,8 +78,8 @@ int twl4030_i2c_read_u8(u8 mod_no, u8 *val, u8 reg);
* IMPORTANT: For twl4030_i2c_write(), allocate num_bytes + 1
* for the value, and populate your data starting at offset 1.
*/
int twl4030_i2c_write(u8 mod_no, u8 *value, u8 reg, u8 num_bytes);
int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, u8 num_bytes);
int twl4030_i2c_write(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes);
int twl4030_i2c_read(u8 mod_no, u8 *value, u8 reg, unsigned num_bytes);
/*----------------------------------------------------------------------*/