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 hdego...@redhat.com
---
board/sunxi/board.c| 10 -
drivers/power/Kconfig | 16
drivers/power/axp221.c | 102 ++---
include/axp221.h | 8 +++-
4 files changed, 111 insertions(+), 25 deletions(-)
diff --git a/board/sunxi/board.c b/board/sunxi/board.c
index e2ebf83..5bf19b7 100644
--- a/board/sunxi/board.c
+++ b/board/sunxi/board.c
@@ -180,22 +180,12 @@ 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:);
ramsize = sunxi_dram_init();
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index e132759..ef0c093 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -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.
diff --git a/drivers/power/axp221.c b/drivers/power/axp221.c
index 717adad..c438849 100644
--- a/drivers/power/axp221.c
+++ b/drivers/power/axp221.c
@@ -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,
+
