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sunxi: power: axp818: Add support for switch SW

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The AXP818 has a switchable output, SW. This is commonly used for
controlling power to the LCD backlight.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
Chen-Yu Tsai 2016-05-02 10:28:12 +08:00 committed by Hans de Goede
parent a696253c1d
commit 15278ccb84
5 changed files with 20 additions and 0 deletions
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1
board/sunxi/board.c
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@ -523,6 +523,7 @@ void sunxi_board_init(void)
power_failed |= axp_set_fldo(1, CONFIG_AXP_FLDO1_VOLT);
power_failed |= axp_set_fldo(2, CONFIG_AXP_FLDO2_VOLT);
power_failed |= axp_set_fldo(3, CONFIG_AXP_FLDO3_VOLT);
power_failed |= axp_set_sw(IS_ENABLED(CONFIG_AXP_SW_ON));
#endif
#endif
printf("DRAM:");

7
drivers/power/Kconfig
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@ -265,6 +265,13 @@ config AXP_FLDO3_VOLT
Set the voltage (mV) to program the axp pmic fldo3 at, set to 0 to
disable fldo3.
config AXP_SW_ON
bool "axp pmic sw on"
depends on AXP818_POWER
default n
---help---
Enable to turn on axp pmic sw.
config SY8106A_VOUT1_VOLT
int "SY8106A pmic VOUT1 voltage"
depends on SY8106A_POWER

10
drivers/power/axp818.c
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@ -225,6 +225,16 @@ int axp_set_fldo(int fldo_num, unsigned int mvolt)
AXP818_OUTPUT_CTRL3_FLDO1_EN << (fldo_num - 1));
}
int axp_set_sw(bool on)
{
if (on)
return pmic_bus_setbits(AXP818_OUTPUT_CTRL2,
AXP818_OUTPUT_CTRL2_SW_EN);
return pmic_bus_clrbits(AXP818_OUTPUT_CTRL2,
AXP818_OUTPUT_CTRL2_SW_EN);
}
int axp_init(void)
{
u8 axp_chip_id;

1
include/axp818.h
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@ -24,6 +24,7 @@
#define AXP818_OUTPUT_CTRL2_DLDO2_EN (1 << 4)
#define AXP818_OUTPUT_CTRL2_DLDO3_EN (1 << 5)
#define AXP818_OUTPUT_CTRL2_DLDO4_EN (1 << 6)
#define AXP818_OUTPUT_CTRL2_SW_EN (1 << 7)
#define AXP818_OUTPUT_CTRL3 0x13
#define AXP818_OUTPUT_CTRL3_FLDO1_EN (1 << 2)
#define AXP818_OUTPUT_CTRL3_FLDO2_EN (1 << 3)

1
include/axp_pmic.h
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@ -32,6 +32,7 @@ int axp_set_aldo4(unsigned int mvolt);
int axp_set_dldo(int dldo_num, unsigned int mvolt);
int axp_set_eldo(int eldo_num, unsigned int mvolt);
int axp_set_fldo(int fldo_num, unsigned int mvolt);
int axp_set_sw(bool on);
int axp_init(void);
int axp_get_sid(unsigned int *sid);