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regmap: clean up regmap allocation

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Putting zero length array at the end of struct is a common technique
to embed arbitrary length of members.  There is no good reason to let
regmap_alloc_count() branch by "if (count <= 1)".

As far as I understood the code, regmap->base is an alias of
regmap->ranges[0].start, but it is not helpful but make the code
just ugly.

Rename regmap_alloc_count() to regmap_alloc() because the _count
suffix seems pointless.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
[trini: fixup cpu_info-rcar.c]
Signed-off-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Masahiro Yamada
2018-04-19 12:14:01 +09:00
committed by Tom Rini
parent 9ce751a6f5
commit 8c1de5e08b
9 changed files with 24 additions and 43 deletions
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7
include/regmap.h
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@@ -21,15 +21,12 @@ struct regmap_range {
/**
* struct regmap - a way of accessing hardware/bus registers
*
* @base: Base address of register map
* @range_count: Number of ranges available within the map
* @range: Pointer to the list of ranges, allocated if @range_count > 1
* @base_range: If @range_count is <= 1, @range points here
* @ranges: Array of ranges
*/
struct regmap {
phys_addr_t base;
int range_count;
struct regmap_range *range, base_range;
struct regmap_range ranges[0];
};
/*