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Commit 6b845ba9 authored by Mark Brown's avatar Mark Brown Committed by Samuel Ortiz
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mfd: sec: Add register cache for interrupt mask registers 



The performance of regmap-irq is improved if the interrupt mask registers
can be cached since it does read/modify/update cycles so start using the
register cache infrastructure for those registers. We should use this more
widely but I don't have a datasheet and this is a nice, conservative
starting point.

Signed-off-by: default avatarMark Brown <broonie@linaro.org>
Signed-off-by: default avatarLee Jones <lee.jones@linaro.org>
Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
parent 1d057b85

drivers/mfd/sec-core.c

+31 −0
Original line number Diff line number Diff line
@@ -106,6 +106,31 @@ int sec_reg_update(struct sec_pmic_dev *sec_pmic, u8 reg, u8 val, u8 mask) 
}

EXPORT_SYMBOL_GPL(sec_reg_update);



static bool s2mps11_volatile(struct device *dev, unsigned int reg)

{

	switch (reg) {

	case S2MPS11_REG_INT1M:

	case S2MPS11_REG_INT2M:

	case S2MPS11_REG_INT3M:

		return false;

	default:

		return true;

	}

}



static bool s5m8763_volatile(struct device *dev, unsigned int reg)

{

	switch (reg) {

	case S5M8763_REG_IRQM1:

	case S5M8763_REG_IRQM2:

	case S5M8763_REG_IRQM3:

	case S5M8763_REG_IRQM4:

		return false;

	default:

		return true;

	}

}



static struct regmap_config sec_regmap_config = {

	.reg_bits = 8,

	.val_bits = 8,
@@ -116,6 +141,8 @@ static struct regmap_config s2mps11_regmap_config = { 
	.val_bits = 8,



	.max_register = S2MPS11_REG_L38CTRL,

	.volatile_reg = s2mps11_volatile,

	.cache_type = REGCACHE_FLAT,

};



static struct regmap_config s5m8763_regmap_config = {
@@ -123,6 +150,8 @@ static struct regmap_config s5m8763_regmap_config = { 
	.val_bits = 8,



	.max_register = S5M8763_REG_LBCNFG2,

	.volatile_reg = s5m8763_volatile,

	.cache_type = REGCACHE_FLAT,

};



static struct regmap_config s5m8767_regmap_config = {
@@ -130,6 +159,8 @@ static struct regmap_config s5m8767_regmap_config = { 
	.val_bits = 8,



	.max_register = S5M8767_REG_LDO28CTRL,

	.volatile_reg = s2mps11_volatile,

	.cache_type = REGCACHE_FLAT,

};



#ifdef CONFIG_OF