xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

regmap: Add support for padding between register and address

Browse Source 
Some devices, especially those with high speed control interfaces, require
padding between the register and the data. Support this in the regmap API
by providing a pad_bits configuration parameter.

Only devices with integer byte counts are supported.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Mark Brown
2012-01-18 10:52:25 +00:00
parent dcd6c92267
commit 82159ba8e6
3 changed files with 24 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/linux/regmap.h
View File

@@ -44,6 +44,7 @@ struct reg_default {
* Configuration for the register map of a device.
*
* @reg_bits: Number of bits in a register address, mandatory.
* @pad_bits: Number of bits of padding between register and value.
* @val_bits: Number of bits in a register value, mandatory.
*
* @writeable_reg: Optional callback returning true if the register
@@ -74,6 +75,7 @@ struct reg_default {
*/
struct regmap_config {
int reg_bits;
int pad_bits;
int val_bits;
bool (*writeable_reg)(struct device *dev, unsigned int reg);