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path: root/drivers/mfd/rk808.c
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Diffstat (limited to 'drivers/mfd/rk808.c')
-rw-r--r--drivers/mfd/rk808.c595
1 files changed, 0 insertions, 595 deletions
diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
deleted file mode 100644
index 216fbf6adec9..000000000000
--- a/drivers/mfd/rk808.c
+++ /dev/null
@@ -1,595 +0,0 @@
-/*
- * MFD core driver for Rockchip RK808/RK818
- *
- * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
- *
- * Author: Chris Zhong <zyw@rock-chips.com>
- * Author: Zhang Qing <zhangqing@rock-chips.com>
- *
- * Copyright (C) 2016 PHYTEC Messtechnik GmbH
- *
- * Author: Wadim Egorov <w.egorov@phytec.de>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- */
-
-#include <linux/i2c.h>
-#include <linux/interrupt.h>
-#include <linux/mfd/rk808.h>
-#include <linux/mfd/core.h>
-#include <linux/module.h>
-#include <linux/of_device.h>
-#include <linux/regmap.h>
-
-struct rk808_reg_data {
- int addr;
- int mask;
- int value;
-};
-
-static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg)
-{
- /*
- * Notes:
- * - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
- * we don't use that feature. It's better to cache.
- * - It's unlikely we care that RK808_DEVCTRL_REG is volatile since
- * bits are cleared in case when we shutoff anyway, but better safe.
- */
-
- switch (reg) {
- case RK808_SECONDS_REG ... RK808_WEEKS_REG:
- case RK808_RTC_STATUS_REG:
- case RK808_VB_MON_REG:
- case RK808_THERMAL_REG:
- case RK808_DCDC_UV_STS_REG:
- case RK808_LDO_UV_STS_REG:
- case RK808_DCDC_PG_REG:
- case RK808_LDO_PG_REG:
- case RK808_DEVCTRL_REG:
- case RK808_INT_STS_REG1:
- case RK808_INT_STS_REG2:
- return true;
- }
-
- return false;
-}
-
-static const struct regmap_config rk818_regmap_config = {
- .reg_bits = 8,
- .val_bits = 8,
- .max_register = RK818_USB_CTRL_REG,
- .cache_type = REGCACHE_RBTREE,
- .volatile_reg = rk808_is_volatile_reg,
-};
-
-static const struct regmap_config rk805_regmap_config = {
- .reg_bits = 8,
- .val_bits = 8,
- .max_register = RK805_OFF_SOURCE_REG,
- .cache_type = REGCACHE_RBTREE,
- .volatile_reg = rk808_is_volatile_reg,
-};
-
-static const struct regmap_config rk808_regmap_config = {
- .reg_bits = 8,
- .val_bits = 8,
- .max_register = RK808_IO_POL_REG,
- .cache_type = REGCACHE_RBTREE,
- .volatile_reg = rk808_is_volatile_reg,
-};
-
-static struct resource rtc_resources[] = {
- {
- .start = RK808_IRQ_RTC_ALARM,
- .end = RK808_IRQ_RTC_ALARM,
- .flags = IORESOURCE_IRQ,
- }
-};
-
-static struct resource rk805_key_resources[] = {
- {
- .start = RK805_IRQ_PWRON_FALL,
- .end = RK805_IRQ_PWRON_FALL,
- .flags = IORESOURCE_IRQ,
- },
- {
- .start = RK805_IRQ_PWRON_RISE,
- .end = RK805_IRQ_PWRON_RISE,
- .flags = IORESOURCE_IRQ,
- }
-};
-
-static const struct mfd_cell rk805s[] = {
- { .name = "rk808-clkout", },
- { .name = "rk808-regulator", },
- { .name = "rk805-pinctrl", },
- {
- .name = "rk808-rtc",
- .num_resources = ARRAY_SIZE(rtc_resources),
- .resources = &rtc_resources[0],
- },
- { .name = "rk805-pwrkey",
- .num_resources = ARRAY_SIZE(rk805_key_resources),
- .resources = &rk805_key_resources[0],
- },
-};
-
-static const struct mfd_cell rk808s[] = {
- { .name = "rk808-clkout", },
- { .name = "rk808-regulator", },
- {
- .name = "rk808-rtc",
- .num_resources = ARRAY_SIZE(rtc_resources),
- .resources = rtc_resources,
- },
-};
-
-static const struct mfd_cell rk818s[] = {
- { .name = "rk808-clkout", },
- { .name = "rk808-regulator", },
- {
- .name = "rk808-rtc",
- .num_resources = ARRAY_SIZE(rtc_resources),
- .resources = rtc_resources,
- },
-};
-
-static const struct rk808_reg_data rk805_pre_init_reg[] = {
- {RK805_BUCK1_CONFIG_REG, RK805_BUCK1_2_ILMAX_MASK,
- RK805_BUCK1_2_ILMAX_4000MA},
- {RK805_BUCK2_CONFIG_REG, RK805_BUCK1_2_ILMAX_MASK,
- RK805_BUCK1_2_ILMAX_4000MA},
- {RK805_BUCK3_CONFIG_REG, RK805_BUCK3_4_ILMAX_MASK,
- RK805_BUCK3_ILMAX_3000MA},
- {RK805_BUCK4_CONFIG_REG, RK805_BUCK3_4_ILMAX_MASK,
- RK805_BUCK4_ILMAX_3500MA},
- {RK805_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_400MA},
- {RK805_GPIO_IO_POL_REG, SLP_SD_MSK, SLEEP_FUN},
- {RK805_THERMAL_REG, TEMP_HOTDIE_MSK, TEMP115C},
-};
-
-static const struct rk808_reg_data rk808_pre_init_reg[] = {
- { RK808_BUCK3_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_150MA },
- { RK808_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_200MA },
- { RK808_BOOST_CONFIG_REG, BOOST_ILMIN_MASK, BOOST_ILMIN_100MA },
- { RK808_BUCK1_CONFIG_REG, BUCK1_RATE_MASK, BUCK_ILMIN_200MA },
- { RK808_BUCK2_CONFIG_REG, BUCK2_RATE_MASK, BUCK_ILMIN_200MA },
- { RK808_DCDC_UV_ACT_REG, BUCK_UV_ACT_MASK, BUCK_UV_ACT_DISABLE},
- { RK808_VB_MON_REG, MASK_ALL, VB_LO_ACT |
- VB_LO_SEL_3500MV },
-};
-
-static const struct rk808_reg_data rk818_pre_init_reg[] = {
- /* improve efficiency */
- { RK818_BUCK2_CONFIG_REG, BUCK2_RATE_MASK, BUCK_ILMIN_250MA },
- { RK818_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_250MA },
- { RK818_BOOST_CONFIG_REG, BOOST_ILMIN_MASK, BOOST_ILMIN_100MA },
- { RK818_USB_CTRL_REG, RK818_USB_ILIM_SEL_MASK,
- RK818_USB_ILMIN_2000MA },
- /* close charger when usb lower then 3.4V */
- { RK818_USB_CTRL_REG, RK818_USB_CHG_SD_VSEL_MASK,
- (0x7 << 4) },
- /* no action when vref */
- { RK818_H5V_EN_REG, BIT(1), RK818_REF_RDY_CTRL },
- /* enable HDMI 5V */
- { RK818_H5V_EN_REG, BIT(0), RK818_H5V_EN },
- { RK808_VB_MON_REG, MASK_ALL, VB_LO_ACT |
- VB_LO_SEL_3500MV },
-};
-
-static const struct regmap_irq rk805_irqs[] = {
- [RK805_IRQ_PWRON_RISE] = {
- .mask = RK805_IRQ_PWRON_RISE_MSK,
- .reg_offset = 0,
- },
- [RK805_IRQ_VB_LOW] = {
- .mask = RK805_IRQ_VB_LOW_MSK,
- .reg_offset = 0,
- },
- [RK805_IRQ_PWRON] = {
- .mask = RK805_IRQ_PWRON_MSK,
- .reg_offset = 0,
- },
- [RK805_IRQ_PWRON_LP] = {
- .mask = RK805_IRQ_PWRON_LP_MSK,
- .reg_offset = 0,
- },
- [RK805_IRQ_HOTDIE] = {
- .mask = RK805_IRQ_HOTDIE_MSK,
- .reg_offset = 0,
- },
- [RK805_IRQ_RTC_ALARM] = {
- .mask = RK805_IRQ_RTC_ALARM_MSK,
- .reg_offset = 0,
- },
- [RK805_IRQ_RTC_PERIOD] = {
- .mask = RK805_IRQ_RTC_PERIOD_MSK,
- .reg_offset = 0,
- },
- [RK805_IRQ_PWRON_FALL] = {
- .mask = RK805_IRQ_PWRON_FALL_MSK,
- .reg_offset = 0,
- },
-};
-
-static const struct regmap_irq rk808_irqs[] = {
- /* INT_STS */
- [RK808_IRQ_VOUT_LO] = {
- .mask = RK808_IRQ_VOUT_LO_MSK,
- .reg_offset = 0,
- },
- [RK808_IRQ_VB_LO] = {
- .mask = RK808_IRQ_VB_LO_MSK,
- .reg_offset = 0,
- },
- [RK808_IRQ_PWRON] = {
- .mask = RK808_IRQ_PWRON_MSK,
- .reg_offset = 0,
- },
- [RK808_IRQ_PWRON_LP] = {
- .mask = RK808_IRQ_PWRON_LP_MSK,
- .reg_offset = 0,
- },
- [RK808_IRQ_HOTDIE] = {
- .mask = RK808_IRQ_HOTDIE_MSK,
- .reg_offset = 0,
- },
- [RK808_IRQ_RTC_ALARM] = {
- .mask = RK808_IRQ_RTC_ALARM_MSK,
- .reg_offset = 0,
- },
- [RK808_IRQ_RTC_PERIOD] = {
- .mask = RK808_IRQ_RTC_PERIOD_MSK,
- .reg_offset = 0,
- },
-
- /* INT_STS2 */
- [RK808_IRQ_PLUG_IN_INT] = {
- .mask = RK808_IRQ_PLUG_IN_INT_MSK,
- .reg_offset = 1,
- },
- [RK808_IRQ_PLUG_OUT_INT] = {
- .mask = RK808_IRQ_PLUG_OUT_INT_MSK,
- .reg_offset = 1,
- },
-};
-
-static const struct regmap_irq rk818_irqs[] = {
- /* INT_STS */
- [RK818_IRQ_VOUT_LO] = {
- .mask = RK818_IRQ_VOUT_LO_MSK,
- .reg_offset = 0,
- },
- [RK818_IRQ_VB_LO] = {
- .mask = RK818_IRQ_VB_LO_MSK,
- .reg_offset = 0,
- },
- [RK818_IRQ_PWRON] = {
- .mask = RK818_IRQ_PWRON_MSK,
- .reg_offset = 0,
- },
- [RK818_IRQ_PWRON_LP] = {
- .mask = RK818_IRQ_PWRON_LP_MSK,
- .reg_offset = 0,
- },
- [RK818_IRQ_HOTDIE] = {
- .mask = RK818_IRQ_HOTDIE_MSK,
- .reg_offset = 0,
- },
- [RK818_IRQ_RTC_ALARM] = {
- .mask = RK818_IRQ_RTC_ALARM_MSK,
- .reg_offset = 0,
- },
- [RK818_IRQ_RTC_PERIOD] = {
- .mask = RK818_IRQ_RTC_PERIOD_MSK,
- .reg_offset = 0,
- },
- [RK818_IRQ_USB_OV] = {
- .mask = RK818_IRQ_USB_OV_MSK,
- .reg_offset = 0,
- },
-
- /* INT_STS2 */
- [RK818_IRQ_PLUG_IN] = {
- .mask = RK818_IRQ_PLUG_IN_MSK,
- .reg_offset = 1,
- },
- [RK818_IRQ_PLUG_OUT] = {
- .mask = RK818_IRQ_PLUG_OUT_MSK,
- .reg_offset = 1,
- },
- [RK818_IRQ_CHG_OK] = {
- .mask = RK818_IRQ_CHG_OK_MSK,
- .reg_offset = 1,
- },
- [RK818_IRQ_CHG_TE] = {
- .mask = RK818_IRQ_CHG_TE_MSK,
- .reg_offset = 1,
- },
- [RK818_IRQ_CHG_TS1] = {
- .mask = RK818_IRQ_CHG_TS1_MSK,
- .reg_offset = 1,
- },
- [RK818_IRQ_TS2] = {
- .mask = RK818_IRQ_TS2_MSK,
- .reg_offset = 1,
- },
- [RK818_IRQ_CHG_CVTLIM] = {
- .mask = RK818_IRQ_CHG_CVTLIM_MSK,
- .reg_offset = 1,
- },
- [RK818_IRQ_DISCHG_ILIM] = {
- .mask = RK818_IRQ_DISCHG_ILIM_MSK,
- .reg_offset = 1,
- },
-};
-
-static struct regmap_irq_chip rk805_irq_chip = {
- .name = "rk805",
- .irqs = rk805_irqs,
- .num_irqs = ARRAY_SIZE(rk805_irqs),
- .num_regs = 1,
- .status_base = RK805_INT_STS_REG,
- .mask_base = RK805_INT_STS_MSK_REG,
- .ack_base = RK805_INT_STS_REG,
- .init_ack_masked = true,
-};
-
-static const struct regmap_irq_chip rk808_irq_chip = {
- .name = "rk808",
- .irqs = rk808_irqs,
- .num_irqs = ARRAY_SIZE(rk808_irqs),
- .num_regs = 2,
- .irq_reg_stride = 2,
- .status_base = RK808_INT_STS_REG1,
- .mask_base = RK808_INT_STS_MSK_REG1,
- .ack_base = RK808_INT_STS_REG1,
- .init_ack_masked = true,
-};
-
-static const struct regmap_irq_chip rk818_irq_chip = {
- .name = "rk818",
- .irqs = rk818_irqs,
- .num_irqs = ARRAY_SIZE(rk818_irqs),
- .num_regs = 2,
- .irq_reg_stride = 2,
- .status_base = RK818_INT_STS_REG1,
- .mask_base = RK818_INT_STS_MSK_REG1,
- .ack_base = RK818_INT_STS_REG1,
- .init_ack_masked = true,
-};
-
-static struct i2c_client *rk808_i2c_client;
-
-static void rk805_device_shutdown(void)
-{
- int ret;
- struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
-
- if (!rk808) {
- dev_warn(&rk808_i2c_client->dev,
- "have no rk805, so do nothing here\n");
- return;
- }
-
- ret = regmap_update_bits(rk808->regmap,
- RK805_DEV_CTRL_REG,
- DEV_OFF, DEV_OFF);
- if (ret)
- dev_err(&rk808_i2c_client->dev, "power off error!\n");
-}
-
-static void rk808_device_shutdown(void)
-{
- int ret;
- struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
-
- if (!rk808) {
- dev_warn(&rk808_i2c_client->dev,
- "have no rk808, so do nothing here\n");
- return;
- }
-
- ret = regmap_update_bits(rk808->regmap,
- RK808_DEVCTRL_REG,
- DEV_OFF_RST, DEV_OFF_RST);
- if (ret)
- dev_err(&rk808_i2c_client->dev, "power off error!\n");
-}
-
-static void rk818_device_shutdown(void)
-{
- int ret;
- struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
-
- if (!rk808) {
- dev_warn(&rk808_i2c_client->dev,
- "have no rk818, so do nothing here\n");
- return;
- }
-
- ret = regmap_update_bits(rk808->regmap,
- RK818_DEVCTRL_REG,
- DEV_OFF, DEV_OFF);
- if (ret)
- dev_err(&rk808_i2c_client->dev, "power off error!\n");
-}
-
-static const struct of_device_id rk808_of_match[] = {
- { .compatible = "rockchip,rk805" },
- { .compatible = "rockchip,rk808" },
- { .compatible = "rockchip,rk818" },
- { },
-};
-MODULE_DEVICE_TABLE(of, rk808_of_match);
-
-static int rk808_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
-{
- struct device_node *np = client->dev.of_node;
- struct rk808 *rk808;
- const struct rk808_reg_data *pre_init_reg;
- const struct mfd_cell *cells;
- void (*pm_pwroff_fn)(void);
- int nr_pre_init_regs;
- int nr_cells;
- int pm_off = 0, msb, lsb;
- int ret;
- int i;
-
- rk808 = devm_kzalloc(&client->dev, sizeof(*rk808), GFP_KERNEL);
- if (!rk808)
- return -ENOMEM;
-
- /* Read chip variant */
- msb = i2c_smbus_read_byte_data(client, RK808_ID_MSB);
- if (msb < 0) {
- dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
- RK808_ID_MSB);
- return msb;
- }
-
- lsb = i2c_smbus_read_byte_data(client, RK808_ID_LSB);
- if (lsb < 0) {
- dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
- RK808_ID_LSB);
- return lsb;
- }
-
- rk808->variant = ((msb << 8) | lsb) & RK8XX_ID_MSK;
- dev_info(&client->dev, "chip id: 0x%x\n", (unsigned int)rk808->variant);
-
- switch (rk808->variant) {
- case RK805_ID:
- rk808->regmap_cfg = &rk805_regmap_config;
- rk808->regmap_irq_chip = &rk805_irq_chip;
- pre_init_reg = rk805_pre_init_reg;
- nr_pre_init_regs = ARRAY_SIZE(rk805_pre_init_reg);
- cells = rk805s;
- nr_cells = ARRAY_SIZE(rk805s);
- pm_pwroff_fn = rk805_device_shutdown;
- break;
- case RK808_ID:
- rk808->regmap_cfg = &rk808_regmap_config;
- rk808->regmap_irq_chip = &rk808_irq_chip;
- pre_init_reg = rk808_pre_init_reg;
- nr_pre_init_regs = ARRAY_SIZE(rk808_pre_init_reg);
- cells = rk808s;
- nr_cells = ARRAY_SIZE(rk808s);
- pm_pwroff_fn = rk808_device_shutdown;
- break;
- case RK818_ID:
- rk808->regmap_cfg = &rk818_regmap_config;
- rk808->regmap_irq_chip = &rk818_irq_chip;
- pre_init_reg = rk818_pre_init_reg;
- nr_pre_init_regs = ARRAY_SIZE(rk818_pre_init_reg);
- cells = rk818s;
- nr_cells = ARRAY_SIZE(rk818s);
- pm_pwroff_fn = rk818_device_shutdown;
- break;
- default:
- dev_err(&client->dev, "Unsupported RK8XX ID %lu\n",
- rk808->variant);
- return -EINVAL;
- }
-
- rk808->i2c = client;
- i2c_set_clientdata(client, rk808);
-
- rk808->regmap = devm_regmap_init_i2c(client, rk808->regmap_cfg);
- if (IS_ERR(rk808->regmap)) {
- dev_err(&client->dev, "regmap initialization failed\n");
- return PTR_ERR(rk808->regmap);
- }
-
- if (!client->irq) {
- dev_err(&client->dev, "No interrupt support, no core IRQ\n");
- return -EINVAL;
- }
-
- ret = regmap_add_irq_chip(rk808->regmap, client->irq,
- IRQF_ONESHOT, -1,
- rk808->regmap_irq_chip, &rk808->irq_data);
- if (ret) {
- dev_err(&client->dev, "Failed to add irq_chip %d\n", ret);
- return ret;
- }
-
- for (i = 0; i < nr_pre_init_regs; i++) {
- ret = regmap_update_bits(rk808->regmap,
- pre_init_reg[i].addr,
- pre_init_reg[i].mask,
- pre_init_reg[i].value);
- if (ret) {
- dev_err(&client->dev,
- "0x%x write err\n",
- pre_init_reg[i].addr);
- return ret;
- }
- }
-
- ret = devm_mfd_add_devices(&client->dev, PLATFORM_DEVID_NONE,
- cells, nr_cells, NULL, 0,
- regmap_irq_get_domain(rk808->irq_data));
- if (ret) {
- dev_err(&client->dev, "failed to add MFD devices %d\n", ret);
- goto err_irq;
- }
-
- pm_off = of_property_read_bool(np,
- "rockchip,system-power-controller");
- if (pm_off && !pm_power_off) {
- rk808_i2c_client = client;
- pm_power_off = pm_pwroff_fn;
- }
-
- return 0;
-
-err_irq:
- regmap_del_irq_chip(client->irq, rk808->irq_data);
- return ret;
-}
-
-static int rk808_remove(struct i2c_client *client)
-{
- struct rk808 *rk808 = i2c_get_clientdata(client);
-
- regmap_del_irq_chip(client->irq, rk808->irq_data);
- pm_power_off = NULL;
-
- return 0;
-}
-
-static const struct i2c_device_id rk808_ids[] = {
- { "rk805" },
- { "rk808" },
- { "rk818" },
- { },
-};
-MODULE_DEVICE_TABLE(i2c, rk808_ids);
-
-static struct i2c_driver rk808_i2c_driver = {
- .driver = {
- .name = "rk808",
- .of_match_table = rk808_of_match,
- },
- .probe = rk808_probe,
- .remove = rk808_remove,
- .id_table = rk808_ids,
-};
-
-module_i2c_driver(rk808_i2c_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
-MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
-MODULE_AUTHOR("Wadim Egorov <w.egorov@phytec.de>");
-MODULE_DESCRIPTION("RK808/RK818 PMIC driver");
generated by cgit (git 2.34.1) at 2025-12-25 04:28:09 +0000