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sunxi: axp221: Explicitly turn off unused voltages

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Explicitly turn off unused voltages, rather then leaving them as is. Likewise
explictly enabled the dcdc convertors, rather then assuming they are already
enabled at boot.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Ian Campbell <ijc@hellion.org.uk>
This commit is contained in:
Hans de Goede 2014-12-13 14:02:38 +01:00
parent 1262a85fe3
commit 50e0d5e60b
4 changed files with 111 additions and 25 deletions
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10
board/sunxi/board.c
View file

@ -180,21 +180,11 @@ void sunxi_board_init(void)
power_failed |= axp221_set_dcdc3(1200);
power_failed |= axp221_set_dcdc4(1200);
power_failed |= axp221_set_dcdc5(1500);
#if CONFIG_AXP221_DLDO1_VOLT != -1
power_failed |= axp221_set_dldo1(CONFIG_AXP221_DLDO1_VOLT);
#endif
#if CONFIG_AXP221_DLDO4_VOLT != -1
power_failed |= axp221_set_dldo4(CONFIG_AXP221_DLDO4_VOLT);
#endif
#if CONFIG_AXP221_ALDO1_VOLT != -1
power_failed |= axp221_set_aldo1(CONFIG_AXP221_ALDO1_VOLT);
#endif
#if CONFIG_AXP221_ALDO2_VOLT != -1
power_failed |= axp221_set_aldo2(CONFIG_AXP221_ALDO2_VOLT);
#endif
#if CONFIG_AXP221_ALDO3_VOLT != -1
power_failed |= axp221_set_aldo3(CONFIG_AXP221_ALDO3_VOLT);
#endif
#endif
printf("DRAM:");

16
drivers/power/Kconfig
View file

@ -19,9 +19,9 @@ config AXP221_DCDC1_VOLT
config AXP221_DLDO1_VOLT
int "axp221 dldo1 voltage"
depends on AXP221_POWER
default -1
default 0
---help---
Set the voltage (mV) to program the axp221 dldo1 at, set to -1 to
Set the voltage (mV) to program the axp221 dldo1 at, set to 0 to
disable dldo1. On sun6i (A31) boards with ethernet this is often used
to power the ethernet phy. On sun8i (A23) boards this is often used to
power the wifi.
@ -29,17 +29,17 @@ config AXP221_DLDO1_VOLT
config AXP221_DLDO4_VOLT
int "axp221 dldo4 voltage"
depends on AXP221_POWER
default -1
default 0
---help---
Set the voltage (mV) to program the axp221 dldo4 at, set to -1 to
Set the voltage (mV) to program the axp221 dldo4 at, set to 0 to
disable dldo4.
config AXP221_ALDO1_VOLT
int "axp221 aldo1 voltage"
depends on AXP221_POWER
default -1
default 0
---help---
Set the voltage (mV) to program the axp221 aldo1 at, set to -1 to
Set the voltage (mV) to program the axp221 aldo1 at, set to 0 to
disable aldo1. On sun6i (A31) boards which have a wifi module this is
often used to power the wifi module.
@ -49,7 +49,7 @@ config AXP221_ALDO2_VOLT
default 1800 if MACH_SUN6I
default 2500 if MACH_SUN8I
---help---
Set the voltage (mV) to program the axp221 aldo2 at, set to -1 to
Set the voltage (mV) to program the axp221 aldo2 at, set to 0 to
disable aldo2. On sun6i (A31) boards this is typically connected to
VCC-PM, which powers the port M gpios, and should be set to 1.8V.
On sun8i (A23) this is typically connected to VDD-DLL and must be
@ -60,6 +60,6 @@ config AXP221_ALDO3_VOLT
depends on AXP221_POWER
default 3000
---help---
Set the voltage (mV) to program the axp221 aldo3 at, set to -1 to
Set the voltage (mV) to program the axp221 aldo3 at, set to 0 to
disable aldo3. This is typically connected to VCC-PLL and AVCC and
must be set to 3V.

102
drivers/power/axp221.c
View file

@ -80,45 +80,107 @@ static int axp221_setbits(u8 reg, u8 bits)
return pmic_bus_write(reg, val);
}
static int axp221_clrbits(u8 reg, u8 bits)
{
int ret;
u8 val;
ret = pmic_bus_read(reg, &val);
if (ret)
return ret;
val &= ~bits;
return pmic_bus_write(reg, val);
}
int axp221_set_dcdc1(unsigned int mvolt)
{
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 1600, 3400, 100);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC1_EN);
ret = pmic_bus_write(AXP221_DCDC1_CTRL, cfg);
if (ret)
return ret;
return axp221_setbits(AXP221_OUTPUT_CTRL2,
AXP221_OUTPUT_CTRL2_DCDC1_EN);
ret = axp221_setbits(AXP221_OUTPUT_CTRL2,
AXP221_OUTPUT_CTRL2_DCDC1SW_EN);
if (ret)
return ret;
return axp221_setbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC1_EN);
}
int axp221_set_dcdc2(unsigned int mvolt)
{
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
return pmic_bus_write(AXP221_DCDC2_CTRL, cfg);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC2_EN);
ret = pmic_bus_write(AXP221_DCDC2_CTRL, cfg);
if (ret)
return ret;
return axp221_setbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC2_EN);
}
int axp221_set_dcdc3(unsigned int mvolt)
{
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1860, 20);
return pmic_bus_write(AXP221_DCDC3_CTRL, cfg);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC3_EN);
ret = pmic_bus_write(AXP221_DCDC3_CTRL, cfg);
if (ret)
return ret;
return axp221_setbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC3_EN);
}
int axp221_set_dcdc4(unsigned int mvolt)
{
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 600, 1540, 20);
return pmic_bus_write(AXP221_DCDC4_CTRL, cfg);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC4_EN);
ret = pmic_bus_write(AXP221_DCDC4_CTRL, cfg);
if (ret)
return ret;
return axp221_setbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC4_EN);
}
int axp221_set_dcdc5(unsigned int mvolt)
{
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 1000, 2550, 50);
return pmic_bus_write(AXP221_DCDC5_CTRL, cfg);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC5_EN);
ret = pmic_bus_write(AXP221_DCDC5_CTRL, cfg);
if (ret)
return ret;
return axp221_setbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_DCDC5_EN);
}
int axp221_set_dldo1(unsigned int mvolt)
@ -126,6 +188,10 @@ int axp221_set_dldo1(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL2,
AXP221_OUTPUT_CTRL2_DLDO1_EN);
ret = pmic_bus_write(AXP221_DLDO1_CTRL, cfg);
if (ret)
return ret;
@ -139,6 +205,10 @@ int axp221_set_dldo2(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL2,
AXP221_OUTPUT_CTRL2_DLDO2_EN);
ret = pmic_bus_write(AXP221_DLDO2_CTRL, cfg);
if (ret)
return ret;
@ -152,6 +222,10 @@ int axp221_set_dldo3(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL2,
AXP221_OUTPUT_CTRL2_DLDO3_EN);
ret = pmic_bus_write(AXP221_DLDO3_CTRL, cfg);
if (ret)
return ret;
@ -165,6 +239,10 @@ int axp221_set_dldo4(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL2,
AXP221_OUTPUT_CTRL2_DLDO4_EN);
ret = pmic_bus_write(AXP221_DLDO4_CTRL, cfg);
if (ret)
return ret;
@ -178,6 +256,10 @@ int axp221_set_aldo1(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_ALDO1_EN);
ret = pmic_bus_write(AXP221_ALDO1_CTRL, cfg);
if (ret)
return ret;
@ -191,6 +273,10 @@ int axp221_set_aldo2(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL1,
AXP221_OUTPUT_CTRL1_ALDO2_EN);
ret = pmic_bus_write(AXP221_ALDO2_CTRL, cfg);
if (ret)
return ret;
@ -204,6 +290,10 @@ int axp221_set_aldo3(unsigned int mvolt)
int ret;
u8 cfg = axp221_mvolt_to_cfg(mvolt, 700, 3300, 100);
if (mvolt == 0)
return axp221_clrbits(AXP221_OUTPUT_CTRL3,
AXP221_OUTPUT_CTRL3_ALDO3_EN);
ret = pmic_bus_write(AXP221_ALDO3_CTRL, cfg);
if (ret)
return ret;

8
include/axp221.h
View file

@ -17,6 +17,12 @@
/* Page 0 addresses */
#define AXP221_CHIP_ID 0x03
#define AXP221_OUTPUT_CTRL1 0x10
#define AXP221_OUTPUT_CTRL1_DCDC0_EN (1 << 0)
#define AXP221_OUTPUT_CTRL1_DCDC1_EN (1 << 1)
#define AXP221_OUTPUT_CTRL1_DCDC2_EN (1 << 2)
#define AXP221_OUTPUT_CTRL1_DCDC3_EN (1 << 3)
#define AXP221_OUTPUT_CTRL1_DCDC4_EN (1 << 4)
#define AXP221_OUTPUT_CTRL1_DCDC5_EN (1 << 5)
#define AXP221_OUTPUT_CTRL1_ALDO1_EN (1 << 6)
#define AXP221_OUTPUT_CTRL1_ALDO2_EN (1 << 7)
#define AXP221_OUTPUT_CTRL2 0x12
@ -24,7 +30,7 @@
#define AXP221_OUTPUT_CTRL2_DLDO2_EN (1 << 4)
#define AXP221_OUTPUT_CTRL2_DLDO3_EN (1 << 5)
#define AXP221_OUTPUT_CTRL2_DLDO4_EN (1 << 6)
#define AXP221_OUTPUT_CTRL2_DCDC1_EN (1 << 7)
#define AXP221_OUTPUT_CTRL2_DCDC1SW_EN (1 << 7)
#define AXP221_OUTPUT_CTRL3 0x13
#define AXP221_OUTPUT_CTRL3_ALDO3_EN (1 << 7)
#define AXP221_DLDO1_CTRL 0x15