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https://github.com/AsahiLinux/u-boot
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3cc293e26f
The execution flow is currently like this for aldo_num == 1 or 2:
int axp_set_aldo(int aldo_num, unsigned int mvolt)
{
...
if (mvolt == 0)
return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1,
AXP809_OUTPUT_CTRL1_ALDO1_EN << (aldo_num - 1));
...
return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1,
AXP809_OUTPUT_CTRL1_ALDO1_EN << (aldo_num - 1));
}
I.e. aldo1 and aldo2 will always be disabled. This patch fixes it by
setting (rather than clearing) the enable bit when mvolt != 0.
Signed-off-by: Rask Ingemann Lambertsen <rask@formelder.dk>
Fixes: 795857df41 ("sunxi: power: add AXP809 support")
232 lines
5 KiB
C
232 lines
5 KiB
C
/*
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* AXP809 driver based on AXP221 driver
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*
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*
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* (C) Copyright 2016 Chen-Yu Tsai <wens@csie.org>
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*
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* Based on axp221.c
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* (C) Copyright 2014 Hans de Goede <hdegoede@redhat.com>
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* (C) Copyright 2013 Oliver Schinagl <oliver@schinagl.nl>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <errno.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/pmic_bus.h>
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#include <axp_pmic.h>
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static u8 axp809_mvolt_to_cfg(int mvolt, int min, int max, int div)
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{
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if (mvolt < min)
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mvolt = min;
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else if (mvolt > max)
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mvolt = max;
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return (mvolt - min) / div;
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}
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int axp_set_dcdc1(unsigned int mvolt)
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{
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int ret;
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u8 cfg = axp809_mvolt_to_cfg(mvolt, 1600, 3400, 100);
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if (mvolt == 0)
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return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1,
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AXP809_OUTPUT_CTRL1_DCDC1_EN);
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ret = pmic_bus_write(AXP809_DCDC1_CTRL, cfg);
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if (ret)
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return ret;
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ret = pmic_bus_setbits(AXP809_OUTPUT_CTRL2,
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AXP809_OUTPUT_CTRL2_DC1SW_EN);
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if (ret)
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return ret;
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return pmic_bus_setbits(AXP809_OUTPUT_CTRL1,
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AXP809_OUTPUT_CTRL1_DCDC1_EN);
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}
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int axp_set_dcdc2(unsigned int mvolt)
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{
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int ret;
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u8 cfg = axp809_mvolt_to_cfg(mvolt, 600, 1540, 20);
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if (mvolt == 0)
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return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1,
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AXP809_OUTPUT_CTRL1_DCDC2_EN);
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ret = pmic_bus_write(AXP809_DCDC2_CTRL, cfg);
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if (ret)
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return ret;
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return pmic_bus_setbits(AXP809_OUTPUT_CTRL1,
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AXP809_OUTPUT_CTRL1_DCDC2_EN);
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}
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int axp_set_dcdc3(unsigned int mvolt)
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{
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int ret;
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u8 cfg = axp809_mvolt_to_cfg(mvolt, 600, 1860, 20);
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if (mvolt == 0)
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return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1,
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AXP809_OUTPUT_CTRL1_DCDC3_EN);
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ret = pmic_bus_write(AXP809_DCDC3_CTRL, cfg);
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if (ret)
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return ret;
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return pmic_bus_setbits(AXP809_OUTPUT_CTRL1,
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AXP809_OUTPUT_CTRL1_DCDC3_EN);
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}
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int axp_set_dcdc4(unsigned int mvolt)
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{
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int ret;
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u8 cfg = axp809_mvolt_to_cfg(mvolt, 600, 1540, 20);
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if (mvolt >= 1540)
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cfg = 0x30 + axp809_mvolt_to_cfg(mvolt, 1800, 2600, 100);
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if (mvolt == 0)
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return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1,
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AXP809_OUTPUT_CTRL1_DCDC4_EN);
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ret = pmic_bus_write(AXP809_DCDC5_CTRL, cfg);
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if (ret)
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return ret;
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return pmic_bus_setbits(AXP809_OUTPUT_CTRL1,
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AXP809_OUTPUT_CTRL1_DCDC4_EN);
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}
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int axp_set_dcdc5(unsigned int mvolt)
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{
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int ret;
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u8 cfg = axp809_mvolt_to_cfg(mvolt, 1000, 2550, 50);
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if (mvolt == 0)
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return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1,
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AXP809_OUTPUT_CTRL1_DCDC5_EN);
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ret = pmic_bus_write(AXP809_DCDC5_CTRL, cfg);
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if (ret)
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return ret;
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return pmic_bus_setbits(AXP809_OUTPUT_CTRL1,
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AXP809_OUTPUT_CTRL1_DCDC5_EN);
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}
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int axp_set_aldo(int aldo_num, unsigned int mvolt)
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{
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int ret;
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u8 cfg;
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if (aldo_num < 1 || aldo_num > 3)
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return -EINVAL;
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if (mvolt == 0 && aldo_num == 3)
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return pmic_bus_clrbits(AXP809_OUTPUT_CTRL2,
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AXP809_OUTPUT_CTRL2_ALDO3_EN);
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if (mvolt == 0)
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return pmic_bus_clrbits(AXP809_OUTPUT_CTRL1,
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AXP809_OUTPUT_CTRL1_ALDO1_EN << (aldo_num - 1));
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cfg = axp809_mvolt_to_cfg(mvolt, 700, 3300, 100);
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ret = pmic_bus_write(AXP809_ALDO1_CTRL + (aldo_num - 1), cfg);
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if (ret)
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return ret;
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if (aldo_num == 3)
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return pmic_bus_setbits(AXP809_OUTPUT_CTRL2,
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AXP809_OUTPUT_CTRL2_ALDO3_EN);
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return pmic_bus_setbits(AXP809_OUTPUT_CTRL1,
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AXP809_OUTPUT_CTRL1_ALDO1_EN << (aldo_num - 1));
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}
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/* TODO: re-work other AXP drivers to consolidate ALDO functions. */
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int axp_set_aldo1(unsigned int mvolt)
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{
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return axp_set_aldo(1, mvolt);
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}
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int axp_set_aldo2(unsigned int mvolt)
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{
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return axp_set_aldo(2, mvolt);
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}
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int axp_set_aldo3(unsigned int mvolt)
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{
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return axp_set_aldo(3, mvolt);
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}
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int axp_set_dldo(int dldo_num, unsigned int mvolt)
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{
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u8 cfg = axp809_mvolt_to_cfg(mvolt, 700, 3300, 100);
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int ret;
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if (dldo_num < 1 || dldo_num > 2)
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return -EINVAL;
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if (mvolt == 0)
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return pmic_bus_clrbits(AXP809_OUTPUT_CTRL2,
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AXP809_OUTPUT_CTRL2_DLDO1_EN << (dldo_num - 1));
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if (dldo_num == 1 && mvolt > 3300)
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cfg += 1 + axp809_mvolt_to_cfg(mvolt, 3400, 4200, 200);
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ret = pmic_bus_write(AXP809_DLDO1_CTRL + (dldo_num - 1), cfg);
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if (ret)
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return ret;
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return pmic_bus_setbits(AXP809_OUTPUT_CTRL2,
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AXP809_OUTPUT_CTRL2_DLDO1_EN << (dldo_num - 1));
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}
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int axp_set_eldo(int eldo_num, unsigned int mvolt)
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{
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int ret;
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u8 cfg = axp809_mvolt_to_cfg(mvolt, 700, 3300, 100);
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if (eldo_num < 1 || eldo_num > 3)
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return -EINVAL;
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if (mvolt == 0)
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return pmic_bus_clrbits(AXP809_OUTPUT_CTRL2,
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AXP809_OUTPUT_CTRL2_ELDO1_EN << (eldo_num - 1));
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ret = pmic_bus_write(AXP809_ELDO1_CTRL + (eldo_num - 1), cfg);
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if (ret)
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return ret;
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return pmic_bus_setbits(AXP809_OUTPUT_CTRL2,
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AXP809_OUTPUT_CTRL2_ELDO1_EN << (eldo_num - 1));
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}
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int axp_set_sw(bool on)
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{
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if (on)
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return pmic_bus_setbits(AXP809_OUTPUT_CTRL2,
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AXP809_OUTPUT_CTRL2_SWOUT_EN);
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return pmic_bus_clrbits(AXP809_OUTPUT_CTRL2,
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AXP809_OUTPUT_CTRL2_SWOUT_EN);
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}
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int axp_init(void)
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{
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return pmic_bus_init();
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}
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int do_poweroff(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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pmic_bus_write(AXP809_SHUTDOWN, AXP809_SHUTDOWN_POWEROFF);
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/* infinite loop during shutdown */
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while (1) {}
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/* not reached */
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return 0;
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}
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