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regulator: s5m8767: Add symbols for hard-coded DVS_RAMP register

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Add symbols for hard-coded values of BUCK_RAMP field in DVS_RAMP
register. This simplifies a little the code as register update is called
only once.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Krzysztof Kozlowski 2013-12-17 14:23:17 +01:00 committed by Mark Brown
parent 463616ea3f
commit f37ff6b6ab
2 changed files with 25 additions and 12 deletions
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22
drivers/regulator/s5m8767.c
View File

@ -881,31 +881,29 @@ static int s5m8767_pmic_probe(struct platform_device *pdev)
if (s5m8767->buck2_ramp || s5m8767->buck3_ramp
|| s5m8767->buck4_ramp) {
unsigned int val;
switch (s5m8767->ramp_delay) {
case 5:
sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
0x40, 0xf0);
val = S5M8767_DVS_BUCK_RAMP_5;
break;
case 10:
sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
0x90, 0xf0);
val = S5M8767_DVS_BUCK_RAMP_10;
break;
case 25:
sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
0xd0, 0xf0);
val = S5M8767_DVS_BUCK_RAMP_25;
break;
case 50:
sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
0xe0, 0xf0);
val = S5M8767_DVS_BUCK_RAMP_50;
break;
case 100:
sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
0xf0, 0xf0);
val = S5M8767_DVS_BUCK_RAMP_100;
break;
default:
sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
0x90, 0xf0);
val = S5M8767_DVS_BUCK_RAMP_10;
}
sec_reg_update(s5m8767->iodev, S5M8767_REG_DVSRAMP,
val << S5M8767_DVS_BUCK_RAMP_SHIFT,
S5M8767_DVS_BUCK_RAMP_MASK);
}
for (i = 0; i < pdata->num_regulators; i++) {

15
include/linux/mfd/samsung/s5m8767.h
View File

@ -186,4 +186,19 @@ enum s5m8767_regulators {
#define S5M8767_ENCTRL_SHIFT 6
#define S5M8767_ENCTRL_MASK (0x3 << S5M8767_ENCTRL_SHIFT)
/*
* Values for BUCK_RAMP field in DVS_RAMP register, matching raw values
* in mV/us.
*/
enum s5m8767_dvs_buck_ramp_values {
S5M8767_DVS_BUCK_RAMP_5 = 0x4,
S5M8767_DVS_BUCK_RAMP_10 = 0x9,
S5M8767_DVS_BUCK_RAMP_12_5 = 0xb,
S5M8767_DVS_BUCK_RAMP_25 = 0xd,
S5M8767_DVS_BUCK_RAMP_50 = 0xe,
S5M8767_DVS_BUCK_RAMP_100 = 0xf,
};
#define S5M8767_DVS_BUCK_RAMP_SHIFT 4
#define S5M8767_DVS_BUCK_RAMP_MASK (0xf << S5M8767_DVS_BUCK_RAMP_SHIFT)
#endif /* __LINUX_MFD_S5M8767_H */