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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
94 lines
1.7 KiB
C
94 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2012
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* Henrik Nordstrom <henrik@henriknordstrom.net>
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*/
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#include <common.h>
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#include <command.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 axp152_mvolt_to_target(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_dcdc2(unsigned int mvolt)
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{
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int rc;
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u8 current, target;
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target = axp152_mvolt_to_target(mvolt, 700, 2275, 25);
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/* Do we really need to be this gentle? It has built-in voltage slope */
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while ((rc = pmic_bus_read(AXP152_DCDC2_VOLTAGE, ¤t)) == 0 &&
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current != target) {
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if (current < target)
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current++;
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else
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current--;
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rc = pmic_bus_write(AXP152_DCDC2_VOLTAGE, current);
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if (rc)
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break;
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}
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return rc;
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}
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int axp_set_dcdc3(unsigned int mvolt)
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{
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u8 target = axp152_mvolt_to_target(mvolt, 700, 3500, 50);
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return pmic_bus_write(AXP152_DCDC3_VOLTAGE, target);
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}
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int axp_set_dcdc4(unsigned int mvolt)
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{
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u8 target = axp152_mvolt_to_target(mvolt, 700, 3500, 25);
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return pmic_bus_write(AXP152_DCDC4_VOLTAGE, target);
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}
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int axp_set_aldo2(unsigned int mvolt)
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{
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u8 target = axp152_mvolt_to_target(mvolt, 700, 3500, 100);
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return pmic_bus_write(AXP152_LDO2_VOLTAGE, target);
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}
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int axp_init(void)
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{
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u8 ver;
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int rc;
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rc = pmic_bus_init();
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if (rc)
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return rc;
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rc = pmic_bus_read(AXP152_CHIP_VERSION, &ver);
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if (rc)
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return rc;
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if (ver != 0x05)
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return -EINVAL;
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return 0;
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}
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#if !IS_ENABLED(CONFIG_SYSRESET_CMD_POWEROFF)
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int do_poweroff(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
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{
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pmic_bus_write(AXP152_SHUTDOWN, AXP152_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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#endif
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