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mfd: Remove wm8400 custom cache implementation

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Save a useful amount of code by removing the custom cache implementation
for wm8400 and using the regmap cache. Also simplify things by not
separately reseting the CODEC registers, this is a sufficiently infrequent
operation that we can simply invalidate the entire cache when this happens.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Mark Brown
2012-05-09 22:53:48 +01:00
committed by Samuel Ortiz
parent 27757e8262
commit 879eed6826
2 changed files with 42 additions and 223 deletions
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14
include/linux/mfd/wm8400-private.h
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@@ -24,19 +24,14 @@
#include <linux/mfd/wm8400.h>
#include <linux/mutex.h>
#include <linux/platform_device.h>
struct regmap;
#include <linux/regmap.h>
#define WM8400_REGISTER_COUNT 0x55
struct wm8400 {
struct device *dev;
struct mutex io_lock;
struct regmap *regmap;
u16 reg_cache[WM8400_REGISTER_COUNT];
struct platform_device regulators[6];
};
@@ -930,6 +925,11 @@ struct wm8400 {
u16 wm8400_reg_read(struct wm8400 *wm8400, u8 reg);
int wm8400_block_read(struct wm8400 *wm8400, u8 reg, int count, u16 *data);
int wm8400_set_bits(struct wm8400 *wm8400, u8 reg, u16 mask, u16 val);
static inline int wm8400_set_bits(struct wm8400 *wm8400, u8 reg,
u16 mask, u16 val)
{
return regmap_update_bits(wm8400->regmap, reg, mask, val);
}
#endif