/*
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* Copyright (C) 2015 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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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 <dm.h>
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#include <errno.h>
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#include <irq-generic.h>
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#include <power/rk8xx_pmic.h>
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#include <power/pmic.h>
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DECLARE_GLOBAL_DATA_PTR;
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#if CONFIG_IS_ENABLED(IRQ)
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/* RK805 */
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static const struct virq_reg rk805_irqs[] = {
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[RK8XX_IRQ_PWRON_FALL] = {
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.mask = RK805_IRQ_PWRON_FALL_MSK,
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.reg_offset = 0,
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},
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[RK8XX_IRQ_PWRON_RISE] = {
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.mask = RK805_IRQ_PWRON_RISE_MSK,
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.reg_offset = 0,
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},
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};
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static struct virq_chip rk805_irq_chip = {
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.status_base = RK805_INT_STS_REG,
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.mask_base = RK805_INT_MSK_REG,
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.num_regs = 1,
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.read = pmic_reg_read,
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.write = pmic_reg_write,
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.irqs = rk805_irqs,
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.num_irqs = ARRAY_SIZE(rk805_irqs),
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};
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/* RK808 */
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static const struct virq_reg rk808_irqs[] = {
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[RK8XX_IRQ_PLUG_OUT] = {
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.mask = RK808_IRQ_PLUG_OUT_MSK,
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.reg_offset = 1,
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},
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};
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static struct virq_chip rk808_irq_chip = {
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.status_base = RK808_INT_STS_REG1,
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.mask_base = RK808_INT_MSK_REG1,
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.irq_reg_stride = 2,
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.num_regs = 2,
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.read = pmic_reg_read,
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.write = pmic_reg_write,
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.irqs = rk808_irqs,
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.num_irqs = ARRAY_SIZE(rk808_irqs),
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};
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/* RK816 */
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static const struct virq_reg rk816_irqs[] = {
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[RK8XX_IRQ_PWRON_FALL] = {
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.mask = RK816_IRQ_PWRON_FALL_MSK,
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.reg_offset = 0,
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},
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[RK8XX_IRQ_PWRON_RISE] = {
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.mask = RK816_IRQ_PWRON_RISE_MSK,
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.reg_offset = 0,
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},
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[RK8XX_IRQ_PLUG_OUT] = {
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.mask = RK816_IRQ_PLUG_OUT_MSK,
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.reg_offset = 2,
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},
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[RK8XX_IRQ_CHG_OK] = {
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.mask = RK816_IRQ_CHR_OK_MSK,
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.reg_offset = 2,
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},
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};
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static struct virq_chip rk816_irq_chip = {
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.status_base = RK816_INT_STS_REG1,
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.mask_base = RK816_INT_MSK_REG1,
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.irq_unalign_reg_idx = 1, /* idx <= 1, stride = 3 */
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.irq_unalign_reg_stride = 3,
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.irq_reg_stride = 2, /* idx > 1, stride = 2 */
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.num_regs = 3,
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.read = pmic_reg_read,
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.write = pmic_reg_write,
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.irqs = rk816_irqs,
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.num_irqs = ARRAY_SIZE(rk816_irqs),
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};
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/* RK818 */
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static const struct virq_reg rk818_irqs[] = {
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[RK8XX_IRQ_PLUG_OUT] = {
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.mask = RK818_IRQ_PLUG_OUT_MSK,
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.reg_offset = 1,
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},
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[RK8XX_IRQ_CHG_OK] = {
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.mask = RK818_IRQ_CHR_OK_MSK,
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.reg_offset = 1,
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},
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};
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static struct virq_chip rk818_irq_chip = {
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.status_base = RK818_INT_STS_REG1,
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.mask_base = RK818_INT_MSK_REG1,
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.irq_reg_stride = 2,
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.num_regs = 2,
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.read = pmic_reg_read,
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.write = pmic_reg_write,
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.irqs = rk818_irqs,
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.num_irqs = ARRAY_SIZE(rk818_irqs),
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};
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/* RK817/RK809 */
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static const struct virq_reg rk817_irqs[] = {
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[RK8XX_IRQ_PWRON_FALL] = {
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.mask = RK817_IRQ_PWRON_FALL_MSK,
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.reg_offset = 0,
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},
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[RK8XX_IRQ_PWRON_RISE] = {
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.mask = RK817_IRQ_PWRON_RISE_MSK,
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.reg_offset = 0,
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},
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[RK8XX_IRQ_PLUG_OUT] = {
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.mask = RK817_IRQ_PLUG_OUT_MSK,
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.reg_offset = 1,
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},
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[RK8XX_IRQ_PLUG_IN] = {
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.mask = RK817_IRQ_PLUG_IN_MSK,
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.reg_offset = 1,
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},
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};
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static struct virq_chip rk817_irq_chip = {
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.status_base = RK817_INT_STS_REG0,
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.mask_base = RK817_INT_MSK_REG0,
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.irq_reg_stride = 2,
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.num_regs = 3,
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.read = pmic_reg_read,
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.write = pmic_reg_write,
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.irqs = rk817_irqs,
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.num_irqs = ARRAY_SIZE(rk817_irqs),
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};
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#endif
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static struct reg_data rk817_init_reg[] = {
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/* enable the under-voltage protection,
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* the under-voltage protection will shutdown the LDO3 and reset the PMIC
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*/
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{ RK817_BUCK4_CMIN, 0x6b, 0x6e},
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{ RK817_PMIC_SYS_CFG1, 0x20, 0x70},
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/* Set pmic_sleep as none function */
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{ RK817_PMIC_SYS_CFG3, 0x00, 0x18 },
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/* GATE pin function: gate function */
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{ RK817_GPIO_INT_CFG, 0x00, 0x20 },
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#ifdef CONFIG_DM_CHARGE_DISPLAY
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/* Set pmic_int active low */
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{ RK817_GPIO_INT_CFG, 0x00, 0x02 },
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#endif
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};
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static struct reg_data rk818_init_current[] = {
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{ REG_USB_CTRL, 0x07, 0x0f}, /* 2A */
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};
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static const struct pmic_child_info pmic_children_info[] = {
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{ .prefix = "DCDC", .driver = "rk8xx_buck"},
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{ .prefix = "LDO", .driver = "rk8xx_ldo"},
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{ .prefix = "SWITCH", .driver = "rk8xx_switch"},
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{ },
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};
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static const struct pmic_child_info power_key_info[] = {
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{ .prefix = "pwrkey", .driver = "rk8xx_pwrkey"},
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{ },
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};
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static const struct pmic_child_info rtc_info[] = {
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{ .prefix = "rtc", .driver = "rk8xx_rtc"},
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{ },
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};
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static const struct pmic_child_info fuel_gauge_info[] = {
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{ .addr = "1c", .prefix = "battery", .driver = "rk818_fg"},
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{ .addr = "20", .prefix = "battery", .driver = "rk817_fg"},
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{ .addr = "1a", .prefix = "battery", .driver = "rk816_fg"},
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{ },
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};
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static const struct pmic_child_info rk817_codec_info[] = {
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{ .prefix = "codec", .driver = "rk817_codec"},
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{ },
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};
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static int rk8xx_reg_count(struct udevice *dev)
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{
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struct rk8xx_priv *priv = dev_get_priv(dev);
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switch (priv->variant) {
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case RK809_ID:
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case RK817_ID:
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return RK817_NUM_OF_REGS;
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default:
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return RK808_NUM_OF_REGS;
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}
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}
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static int rk8xx_write(struct udevice *dev, uint reg, const uint8_t *buff,
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int len)
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{
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int ret;
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ret = dm_i2c_write(dev, reg, buff, len);
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if (ret) {
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printf("%s: write reg 0x%02x failed, ret=%d\n", __func__, reg, ret);
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return ret;
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}
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return 0;
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}
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static int rk8xx_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
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{
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int ret;
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ret = dm_i2c_read(dev, reg, buff, len);
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if (ret) {
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printf("%s: read reg 0x%02x failed, ret=%d\n", __func__, reg, ret);
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return ret;
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}
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return 0;
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}
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static int rk8xx_suspend(struct udevice *dev)
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{
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struct rk8xx_priv *priv = dev_get_priv(dev);
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int ret = 0;
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u8 val;
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switch (priv->variant) {
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case RK809_ID:
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case RK817_ID:
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/* pmic_sleep active high */
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ret = rk8xx_read(dev, RK817_PMIC_SYS_CFG3, &val, 1);
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if (ret)
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return ret;
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priv->sleep_pin = val;
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val &= ~0x38;
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val |= 0x28;
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ret = rk8xx_write(dev, RK817_PMIC_SYS_CFG3, &val, 1);
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break;
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default:
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return 0;
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}
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return ret;
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}
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static int rk8xx_resume(struct udevice *dev)
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{
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struct rk8xx_priv *priv = dev_get_priv(dev);
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int ret = 0;
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switch (priv->variant) {
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case RK809_ID:
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case RK817_ID:
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ret = rk8xx_write(dev, RK817_PMIC_SYS_CFG3, &priv->sleep_pin, 1);
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break;
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default:
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return 0;
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}
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return ret;
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}
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static int rk8xx_shutdown(struct udevice *dev)
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{
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struct rk8xx_priv *priv = dev_get_priv(dev);
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u8 val, dev_off, devctrl_reg;
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int ret = 0;
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switch (priv->variant) {
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case RK808_ID:
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devctrl_reg = REG_DEVCTRL;
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dev_off = BIT(3);
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break;
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case RK805_ID:
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case RK816_ID:
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case RK818_ID:
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devctrl_reg = REG_DEVCTRL;
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dev_off = BIT(0);
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break;
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case RK809_ID:
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case RK817_ID:
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devctrl_reg = RK817_REG_SYS_CFG3;
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dev_off = BIT(0);
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break;
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default:
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printf("Unknown PMIC: RK%x\n", priv->variant);
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return -EINVAL;
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}
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ret = rk8xx_read(dev, devctrl_reg, &val, 1);
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if (ret)
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return ret;
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val |= dev_off;
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ret = rk8xx_write(dev, devctrl_reg, &val, 1);
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if (ret)
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return ret;
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return 0;
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}
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#if CONFIG_IS_ENABLED(PMIC_CHILDREN)
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static int rk8xx_bind(struct udevice *dev)
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{
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ofnode regulators_node;
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int children;
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regulators_node = dev_read_subnode(dev, "regulators");
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if (!ofnode_valid(regulators_node)) {
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debug("%s: %s regulators subnode not found!\n", __func__,
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dev->name);
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return -ENXIO;
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}
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debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
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children = pmic_bind_children(dev, regulators_node, pmic_children_info);
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if (!children)
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debug("%s: %s - no child found\n", __func__, dev->name);
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children = pmic_bind_children(dev, dev->node, power_key_info);
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if (!children)
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debug("%s: %s - no child found\n", __func__, dev->name);
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children = pmic_bind_children(dev, dev->node, rtc_info);
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if (!children)
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debug("%s: %s - no child found\n", __func__, dev->name);
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children = pmic_bind_children(dev, dev->node, fuel_gauge_info);
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if (!children)
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debug("%s: %s - no child found\n", __func__, dev->name);
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children = pmic_bind_children(dev, dev->node, rk817_codec_info);
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if (!children)
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debug("%s: %s - no child found\n", __func__, dev->name);
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/* Always return success for this device */
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return 0;
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}
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#endif
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#if CONFIG_IS_ENABLED(IRQ)
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/*
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* When system suspend during U-Boot charge, make sure the plugout event
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* be able to wakeup cpu in wfi/wfe state.
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*/
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#ifdef CONFIG_DM_CHARGE_DISPLAY
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static void rk8xx_plug_out_handler(int irq, void *data)
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{
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printf("Plug out interrupt\n");
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}
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#endif
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static int rk8xx_ofdata_to_platdata(struct udevice *dev)
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{
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struct rk8xx_priv *rk8xx = dev_get_priv(dev);
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u32 interrupt, phandle, val;
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int ret;
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phandle = dev_read_u32_default(dev, "interrupt-parent", -ENODATA);
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if (phandle == -ENODATA) {
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printf("Read 'interrupt-parent' failed, ret=%d\n", phandle);
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return phandle;
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}
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ret = dev_read_u32_array(dev, "interrupts", &interrupt, 1);
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if (ret) {
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printf("Read 'interrupts' failed, ret=%d\n", ret);
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return ret;
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}
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rk8xx->irq = phandle_gpio_to_irq(phandle, interrupt);
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if (rk8xx->irq < 0) {
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printf("Failed to request rk8xx irq, ret=%d\n", rk8xx->irq);
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return rk8xx->irq;
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}
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val = dev_read_u32_default(dev, "long-press-off-time-sec", 0);
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if (val <= 6)
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rk8xx->lp_off_time = RK8XX_LP_TIME_6S;
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else if (val <= 8)
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rk8xx->lp_off_time = RK8XX_LP_TIME_8S;
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else if (val <= 10)
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rk8xx->lp_off_time = RK8XX_LP_TIME_10S;
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else
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rk8xx->lp_off_time = RK8XX_LP_TIME_12S;
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val = dev_read_u32_default(dev, "long-press-restart", 0);
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if (val)
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rk8xx->lp_action = RK8XX_LP_RESTART;
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else
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rk8xx->lp_action = RK8XX_LP_OFF;
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val = dev_read_u32_default(dev, "not-save-power-en", 0);
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rk8xx->not_save_power_en = val;
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val = dev_read_bool(dev, "vsys-off-shutdown");
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rk8xx->sys_can_sd = val;
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return 0;
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}
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static int rk8xx_irq_chip_init(struct udevice *dev)
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{
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struct rk8xx_priv *priv = dev_get_priv(dev);
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struct virq_chip *irq_chip = NULL;
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__maybe_unused int irq_plugout = 1;
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int ret;
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switch (priv->variant) {
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case RK808_ID:
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irq_chip = &rk808_irq_chip;
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break;
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case RK805_ID:
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irq_chip = &rk805_irq_chip;
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irq_plugout = 0;
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break;
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case RK816_ID:
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irq_chip = &rk816_irq_chip;
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break;
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case RK818_ID:
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irq_chip = &rk818_irq_chip;
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break;
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case RK809_ID:
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case RK817_ID:
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irq_chip = &rk817_irq_chip;
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break;
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default:
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return -EINVAL;
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}
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if (irq_chip) {
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ret = virq_add_chip(dev, irq_chip, priv->irq);
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if (ret) {
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printf("Failed to add irqchip(irq=%d), ret=%d\n",
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priv->irq, ret);
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return ret;
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}
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priv->irq_chip = irq_chip;
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#ifdef CONFIG_DM_CHARGE_DISPLAY
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int irq;
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if (irq_plugout) {
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irq = virq_to_irq(irq_chip, RK8XX_IRQ_PLUG_OUT);
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if (irq < 0) {
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printf("Failed to register plugout irq, ret=%d\n", irq);
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return irq;
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}
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irq_install_handler(irq, rk8xx_plug_out_handler, dev);
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irq_handler_enable_suspend_only(irq);
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}
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#endif
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}
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return 0;
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}
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#else
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static inline int rk8xx_ofdata_to_platdata(struct udevice *dev) { return 0; }
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static inline int rk8xx_irq_chip_init(struct udevice *dev) { return 0; }
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#endif
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static int rk8xx_probe(struct udevice *dev)
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{
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struct rk8xx_priv *priv = dev_get_priv(dev);
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struct reg_data *init_current = NULL;
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struct reg_data *init_data = NULL;
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int init_current_num = 0;
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int init_data_num = 0;
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int ret = 0, i, show_variant;
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uint8_t msb, lsb, id_msb, id_lsb;
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uint8_t on_source = 0, off_source = 0;
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uint8_t pwron_key = 0, lp_off_msk = 0, lp_act_msk = 0;
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uint8_t power_en0, power_en1, power_en2, power_en3;
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uint8_t on, off;
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uint8_t value;
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/* read Chip variant */
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if (device_is_compatible(dev, "rockchip,rk817") ||
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device_is_compatible(dev, "rockchip,rk809")) {
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id_msb = RK817_ID_MSB;
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id_lsb = RK817_ID_LSB;
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} else {
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id_msb = ID_MSB;
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id_lsb = ID_LSB;
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}
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ret = rk8xx_read(dev, id_msb, &msb, 1);
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if (ret)
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return ret;
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ret = rk8xx_read(dev, id_lsb, &lsb, 1);
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if (ret)
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return ret;
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priv->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK;
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show_variant = priv->variant;
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switch (priv->variant) {
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case RK808_ID:
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show_variant = 0x808; /* RK808 hardware ID is 0 */
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pwron_key = RK8XX_DEVCTRL_REG;
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lp_off_msk = RK8XX_LP_OFF_MSK;
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break;
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case RK805_ID:
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case RK816_ID:
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on_source = RK8XX_ON_SOURCE;
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off_source = RK8XX_OFF_SOURCE;
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pwron_key = RK8XX_DEVCTRL_REG;
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lp_off_msk = RK8XX_LP_OFF_MSK;
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lp_act_msk = RK8XX_LP_ACTION_MSK;
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break;
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case RK818_ID:
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on_source = RK8XX_ON_SOURCE;
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off_source = RK8XX_OFF_SOURCE;
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pwron_key = RK8XX_DEVCTRL_REG;
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lp_off_msk = RK8XX_LP_OFF_MSK;
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lp_act_msk = RK8XX_LP_ACTION_MSK;
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/* set current if no fuel gauge */
|
if (!ofnode_valid(dev_read_subnode(dev, "battery"))) {
|
init_current = rk818_init_current;
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init_current_num = ARRAY_SIZE(rk818_init_current);
|
}
|
break;
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case RK809_ID:
|
case RK817_ID:
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if (device_is_compatible(dev, "rockchip,rk809") && (priv->variant != RK809_ID)) {
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dev_err(dev, "the dts is RK809, the hardware is RK817\n");
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run_command("download", 0);
|
}
|
|
if (device_is_compatible(dev, "rockchip,rk817") && (priv->variant != RK817_ID)) {
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dev_err(dev, "the dts is RK817, the hardware is RK809\n");
|
run_command("download", 0);
|
}
|
|
on_source = RK817_ON_SOURCE;
|
off_source = RK817_OFF_SOURCE;
|
pwron_key = RK817_PWRON_KEY;
|
lp_off_msk = RK8XX_LP_OFF_MSK;
|
lp_act_msk = RK8XX_LP_ACTION_MSK;
|
init_data = rk817_init_reg;
|
init_data_num = ARRAY_SIZE(rk817_init_reg);
|
|
/* whether the system voltage can be shutdown in PWR_off mode */
|
if (priv->sys_can_sd) {
|
ret = rk8xx_read(dev, RK817_PMIC_CHRG_TERM, &value, 1);
|
if (ret)
|
return ret;
|
value |= 0x80;
|
ret = rk8xx_write(dev, RK817_PMIC_CHRG_TERM, &value, 1);
|
if (ret)
|
return ret;
|
} else {
|
ret = rk8xx_read(dev, RK817_PMIC_CHRG_TERM, &value, 1);
|
if (ret)
|
return ret;
|
value &= 0x7f;
|
ret = rk8xx_write(dev, RK817_PMIC_CHRG_TERM, &value, 1);
|
if (ret)
|
return ret;
|
}
|
|
/* judge whether save the PMIC_POWER_EN register */
|
if (!priv->not_save_power_en) {
|
ret = rk8xx_read(dev, RK817_POWER_EN0, &power_en0, 1);
|
if (ret)
|
return ret;
|
ret = rk8xx_read(dev, RK817_POWER_EN1, &power_en1, 1);
|
if (ret)
|
return ret;
|
ret = rk8xx_read(dev, RK817_POWER_EN2, &power_en2, 1);
|
if (ret)
|
return ret;
|
ret = rk8xx_read(dev, RK817_POWER_EN3, &power_en3, 1);
|
if (ret)
|
return ret;
|
|
value = (power_en0 & 0x0f) | ((power_en1 & 0x0f) << 4);
|
rk8xx_write(dev, RK817_POWER_EN_SAVE0, &value, 1);
|
value = (power_en2 & 0x0f) | ((power_en3 & 0x0f) << 4);
|
rk8xx_write(dev, RK817_POWER_EN_SAVE1, &value, 1);
|
}
|
break;
|
default:
|
printf("Unknown PMIC: RK%x!!\n", priv->variant);
|
return -EINVAL;
|
}
|
|
/* common init */
|
for (i = 0; i < init_data_num; i++) {
|
ret = pmic_clrsetbits(dev,
|
init_data[i].reg,
|
init_data[i].mask,
|
init_data[i].val);
|
if (ret < 0) {
|
printf("%s: i2c set reg 0x%x failed, ret=%d\n",
|
__func__, init_data[i].reg, ret);
|
}
|
}
|
|
/* current init */
|
for (i = 0; i < init_current_num; i++) {
|
ret = pmic_clrsetbits(dev,
|
init_current[i].reg,
|
init_current[i].mask,
|
init_current[i].val);
|
if (ret < 0) {
|
printf("%s: i2c set reg 0x%x failed, ret=%d\n",
|
__func__, init_current[i].reg, ret);
|
}
|
}
|
|
printf("PMIC: RK%x ", show_variant);
|
|
if (on_source && off_source) {
|
rk8xx_read(dev, on_source, &on, 1);
|
rk8xx_read(dev, off_source, &off, 1);
|
printf("(on=0x%02x, off=0x%02x)", on, off);
|
}
|
printf("\n");
|
|
if (pwron_key) {
|
ret = rk8xx_read(dev, pwron_key, &value, 1);
|
if (ret)
|
return ret;
|
value &= ~(lp_off_msk | lp_act_msk);
|
if (lp_off_msk)
|
value |= priv->lp_off_time;
|
if (lp_act_msk)
|
value |= priv->lp_action;
|
rk8xx_write(dev, pwron_key, &value, 1);
|
}
|
|
ret = rk8xx_irq_chip_init(dev);
|
if (ret) {
|
printf("IRQ chip initial failed\n");
|
return ret;
|
}
|
|
return 0;
|
}
|
|
static struct dm_pmic_ops rk8xx_ops = {
|
.reg_count = rk8xx_reg_count,
|
.read = rk8xx_read,
|
.write = rk8xx_write,
|
.suspend = rk8xx_suspend,
|
.resume = rk8xx_resume,
|
.shutdown = rk8xx_shutdown,
|
};
|
|
static const struct udevice_id rk8xx_ids[] = {
|
{ .compatible = "rockchip,rk805" },
|
{ .compatible = "rockchip,rk808" },
|
{ .compatible = "rockchip,rk809" },
|
{ .compatible = "rockchip,rk816" },
|
{ .compatible = "rockchip,rk817" },
|
{ .compatible = "rockchip,rk818" },
|
{ }
|
};
|
|
U_BOOT_DRIVER(pmic_rk8xx) = {
|
.name = "rk8xx pmic",
|
.id = UCLASS_PMIC,
|
.of_match = rk8xx_ids,
|
#if CONFIG_IS_ENABLED(PMIC_CHILDREN)
|
.bind = rk8xx_bind,
|
#endif
|
.ofdata_to_platdata = rk8xx_ofdata_to_platdata,
|
.priv_auto_alloc_size = sizeof(struct rk8xx_priv),
|
.probe = rk8xx_probe,
|
.ops = &rk8xx_ops,
|
};
|
