Nearly all of the registers in tps65090 combine control bits and status bits. Turn off caching of registers so that we can read status bits reliably.
NOTE: the IRQnMASK and CG_CTRLn registers are the exception and could be cached. If we find that we spend a lot of time reading those we can turn on cache for just those registers. Signed-off-by: Doug Anderson <[email protected]> --- drivers/mfd/tps65090.c | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/drivers/mfd/tps65090.c b/drivers/mfd/tps65090.c index c3cddb4..4cfdd07 100644 --- a/drivers/mfd/tps65090.c +++ b/drivers/mfd/tps65090.c @@ -149,21 +149,11 @@ static struct regmap_irq_chip tps65090_irq_chip = { .mask_invert = true, }; -static bool is_volatile_reg(struct device *dev, unsigned int reg) -{ - if ((reg == TPS65090_INT_STS) || (reg == TPS65090_INT_STS2)) - return true; - else - return false; -} - static const struct regmap_config tps65090_regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = TOTAL_NUM_REG, .num_reg_defaults_raw = TOTAL_NUM_REG, - .cache_type = REGCACHE_RBTREE, - .volatile_reg = is_volatile_reg, }; #ifdef CONFIG_OF -- 1.9.1.423.g4596e3a -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
