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https://github.com/brain-hackers/u-boot-brain
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1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
/*
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* Copyright (C) 2012 Samsung Electronics
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* Rajeshwari Shinde <rajeshwari.s@samsung.com>
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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 <fdtdec.h>
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#include <i2c.h>
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#include <power/pmic.h>
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#include <power/max77686_pmic.h>
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#include <errno.h>
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DECLARE_GLOBAL_DATA_PTR;
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int pmic_init(unsigned char bus)
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{
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static const char name[] = "MAX77686_PMIC";
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struct pmic *p = pmic_alloc();
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if (!p) {
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printf("%s: POWER allocation error!\n", __func__);
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return -ENOMEM;
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}
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#ifdef CONFIG_OF_CONTROL
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const void *blob = gd->fdt_blob;
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int node, parent;
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node = fdtdec_next_compatible(blob, 0, COMPAT_MAXIM_MAX77686_PMIC);
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if (node < 0) {
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debug("PMIC: No node for PMIC Chip in device tree\n");
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debug("node = %d\n", node);
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return -1;
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}
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parent = fdt_parent_offset(blob, node);
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if (parent < 0) {
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debug("%s: Cannot find node parent\n", __func__);
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return -1;
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}
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p->bus = i2c_get_bus_num_fdt(parent);
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if (p->bus < 0) {
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debug("%s: Cannot find I2C bus\n", __func__);
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return -1;
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}
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p->hw.i2c.addr = fdtdec_get_int(blob, node, "reg", 9);
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#else
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p->bus = bus;
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p->hw.i2c.addr = MAX77686_I2C_ADDR;
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#endif
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p->name = name;
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p->interface = PMIC_I2C;
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p->number_of_regs = PMIC_NUM_OF_REGS;
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p->hw.i2c.tx_num = 1;
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puts("Board PMIC init\n");
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return 0;
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}
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