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mfd: tps6586x: Add version detection

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Use the VERSIONCRC to determine the exact device version. According to
the datasheet this register can be used as device identifier. The
identification is needed since some tps6586x regulators use a different
voltage table.

Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Stefan Agner
2013-12-06 13:51:45 +01:00
committed by Lee Jones
parent af66b3c093
commit e0a3da80c6
2 changed files with 49 additions and 8 deletions
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7
include/linux/mfd/tps6586x.h
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@@ -13,6 +13,12 @@
#define TPS6586X_SLEW_RATE_SET 0x08
#define TPS6586X_SLEW_RATE_MASK 0x07
/* VERSION CRC */
#define TPS658621A 0x15
#define TPS658621CD 0x2c
#define TPS658623 0x1b
#define TPS658643 0x03
enum {
TPS6586X_ID_SYS,
TPS6586X_ID_SM_0,
@@ -97,5 +103,6 @@ extern int tps6586x_clr_bits(struct device *dev, int reg, uint8_t bit_mask);
extern int tps6586x_update(struct device *dev, int reg, uint8_t val,
uint8_t mask);
extern int tps6586x_irq_get_virq(struct device *dev, int irq);
extern int tps6586x_get_version(struct device *dev);
#endif /*__LINUX_MFD_TPS6586X_H */