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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 commit c8ffd1356d42223cbb8c86280a083cc3c93e6426, reversing changes made to 2ee6f3a5f7550de3599faef9704e166e5dcace35. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
84 lines
1.6 KiB
C
84 lines
1.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* AXP305 driver
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*
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* (C) Copyright 2020 Jernej Skrabec <jernej.skrabec@siol.net>
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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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#include <common.h>
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#include <command.h>
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#include <errno.h>
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#include <asm/arch/pmic_bus.h>
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#include <axp_pmic.h>
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#define AXP305_DCDC4_1600MV_OFFSET 46
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static u8 axp305_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_dcdc4(unsigned int mvolt)
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{
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int ret;
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u8 cfg;
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if (mvolt >= 1600)
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cfg = AXP305_DCDC4_1600MV_OFFSET +
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axp305_mvolt_to_cfg(mvolt, 1600, 3300, 100);
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else
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cfg = axp305_mvolt_to_cfg(mvolt, 600, 1500, 20);
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if (mvolt == 0)
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return pmic_bus_clrbits(AXP305_OUTPUT_CTRL1,
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AXP305_OUTPUT_CTRL1_DCDCD_EN);
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ret = pmic_bus_write(AXP305_DCDCD_VOLTAGE, cfg);
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if (ret)
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return ret;
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return pmic_bus_setbits(AXP305_OUTPUT_CTRL1,
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AXP305_OUTPUT_CTRL1_DCDCD_EN);
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}
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int axp_init(void)
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{
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u8 axp_chip_id;
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int ret;
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ret = pmic_bus_init();
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if (ret)
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return ret;
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ret = pmic_bus_read(AXP305_CHIP_VERSION, &axp_chip_id);
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if (ret)
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return ret;
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if ((axp_chip_id & AXP305_CHIP_VERSION_MASK) != 0x40)
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return -ENODEV;
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return ret;
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}
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#if !CONFIG_IS_ENABLED(ARM_PSCI_FW) && !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(AXP305_SHUTDOWN, AXP305_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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