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power: axp209: Reduce magic values by adding defines for LDO[234]

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The AXP209 has a few 'magisc-ish' values that are better served with
clear defines.

Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Priit Laes <plaes@plaes.org>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
This commit is contained in:
Olliver Schinagl 2018-11-21 20:05:29 +02:00 • committed by Jagan Teki
parent f5eebc7925
commit 3f7d76a7ed
2 changed files with 20 additions and 7 deletions
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14
drivers/power/axp209.c
View file

@ -81,8 +81,7 @@ int axp_set_aldo2(unsigned int mvolt)
if (rc) if (rc)
return rc; return rc;
/* LDO2 configuration is in upper 4 bits */ reg |= AXP209_LDO24_LDO2_SET(reg, cfg);
reg = (reg & 0x0f) | (cfg << 4);
rc = pmic_bus_write(AXP209_LDO24_VOLTAGE, reg); rc = pmic_bus_write(AXP209_LDO24_VOLTAGE, reg);
if (rc) if (rc)
return rc; return rc;
@ -99,10 +98,12 @@ int axp_set_aldo3(unsigned int mvolt)
return pmic_bus_clrbits(AXP209_OUTPUT_CTRL, return pmic_bus_clrbits(AXP209_OUTPUT_CTRL,
AXP209_OUTPUT_CTRL_LDO3); AXP209_OUTPUT_CTRL_LDO3);
if (mvolt == -1) if (mvolt == -1) {
cfg = 0x80; /* determined by LDO3IN pin */ cfg = AXP209_LDO3_VOLTAGE_FROM_LDO3IN;
else } else {
cfg = axp209_mvolt_to_cfg(mvolt, 700, 3500, 25); cfg = axp209_mvolt_to_cfg(mvolt, 700, 3500, 25);
cfg = AXP209_LDO3_VOLTAGE_SET(cfg);
}
rc = pmic_bus_write(AXP209_LDO3_VOLTAGE, cfg); rc = pmic_bus_write(AXP209_LDO3_VOLTAGE, cfg);
if (rc) if (rc)
@ -131,8 +132,7 @@ int axp_set_aldo4(unsigned int mvolt)
if (rc) if (rc)
return rc; return rc;
/* LDO4 configuration is in lower 4 bits */ reg |= AXP209_LDO24_LDO4_SET(reg, cfg);
reg = (reg & 0xf0) | (cfg << 0);
rc = pmic_bus_write(AXP209_LDO24_VOLTAGE, reg); rc = pmic_bus_write(AXP209_LDO24_VOLTAGE, reg);
if (rc) if (rc)
return rc; return rc;

13
include/axp209.h
View file

@ -34,6 +34,19 @@ enum axp209_reg {
#define AXP209_OUTPUT_CTRL_DCDC2 BIT(4) #define AXP209_OUTPUT_CTRL_DCDC2 BIT(4)
#define AXP209_OUTPUT_CTRL_LDO3 BIT(6) #define AXP209_OUTPUT_CTRL_LDO3 BIT(6)
#define AXP209_LDO24_LDO2_MASK 0xf0
#define AXP209_LDO24_LDO4_MASK 0x0f
#define AXP209_LDO24_LDO2_SET(reg, cfg) \
(((reg) & ~AXP209_LDO24_LDO2_MASK) | \
(((cfg) << 4) & AXP209_LDO24_LDO2_MASK))
#define AXP209_LDO24_LDO4_SET(reg, cfg) \
(((reg) & ~AXP209_LDO24_LDO4_MASK) | \
(((cfg) << 0) & AXP209_LDO24_LDO4_MASK))
#define AXP209_LDO3_VOLTAGE_FROM_LDO3IN BIT(7)
#define AXP209_LDO3_VOLTAGE_MASK 0x7f
#define AXP209_LDO3_VOLTAGE_SET(x) ((x) & AXP209_LDO3_VOLTAGE_MASK)
#define AXP209_IRQ5_PEK_UP BIT(6) #define AXP209_IRQ5_PEK_UP BIT(6)
#define AXP209_IRQ5_PEK_DOWN BIT(5) #define AXP209_IRQ5_PEK_DOWN BIT(5)