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regmap: Allow left shifting register offset before access

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Drivers can configure it to adjust the final read/write location.

Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Pratyush Yadav
2020-09-24 10:04:13 +05:30
committed by Tom Rini
parent 78aaedba9f
commit 7aa5ddffe7
2 changed files with 11 additions and 1 deletions
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6
include/regmap.h
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@@ -82,9 +82,12 @@ struct regmap_bus;
*
* @width: Width of the read/write operations. Defaults to
* REGMAP_SIZE_32 if set to 0.
* @reg_offset_shift Left shift the register offset by this value before
* performing read or write.
*/
struct regmap_config {
enum regmap_size_t width;
u32 reg_offset_shift;
};
/**
@@ -92,12 +95,15 @@ struct regmap_config {
*
* @width: Width of the read/write operations. Defaults to
* REGMAP_SIZE_32 if set to 0.
* @reg_offset_shift Left shift the register offset by this value before
* performing read or write.
* @range_count: Number of ranges available within the map
* @ranges: Array of ranges
*/
struct regmap {
enum regmap_endianness_t endianness;
enum regmap_size_t width;
u32 reg_offset_shift;
int range_count;
struct regmap_range ranges[0];
};