#include <linux/i2c.h>
#include <linux/interrupt.h>
+#include <linux/kernel.h>
#include <linux/mfd/rk808.h>
#include <linux/mfd/core.h>
#include <linux/module.h>
-#include <linux/regmap.h>
#include <linux/of_device.h>
+#include <linux/regmap.h>
struct rk808_reg_data {
int addr;
int value;
};
-struct rk8xx_power_data {
- char *name;
- const struct rk808_reg_data *rk8xx_pre_init_reg;
- int reg_num;
- const struct regmap_config *rk8xx_regmap_config;
- const struct mfd_cell *rk8xx_cell;
- int cell_num;
- struct regmap_irq_chip *rk8xx_irq_chip;
-};
-
static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg)
{
/*
return false;
}
+static int rk808_shutdown(struct regmap *regmap)
+{
+ int ret;
+
+ ret = regmap_update_bits(regmap,
+ RK808_DEVCTRL_REG,
+ DEV_OFF_RST, DEV_OFF_RST);
+ return ret;
+}
+
+static int rk818_shutdown(struct regmap *regmap)
+{
+ int ret;
+
+ ret = regmap_update_bits(regmap,
+ RK818_DEVCTRL_REG,
+ DEV_OFF, DEV_OFF);
+ return ret;
+}
+
+static int rk805_shutdown_prepare(struct regmap *regmap)
+{
+ int ret;
+
+ /* close rtc int when power off */
+ regmap_update_bits(regmap,
+ RK808_INT_STS_MSK_REG1,
+ (0x3 << 5), (0x3 << 5));
+ regmap_update_bits(regmap,
+ RK808_RTC_INT_REG,
+ (0x3 << 2), (0x0 << 2));
+
+ /* pmic sleep shutdown function */
+ ret = regmap_update_bits(regmap,
+ RK805_GPIO_IO_POL_REG,
+ SLP_SD_MSK, SHUTDOWN_FUN);
+ return ret;
+}
+
+static bool rk818_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_EN_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:
+ case RK808_INT_STS_MSK_REG1:
+ case RK808_INT_STS_MSK_REG2:
+ case RK818_SUP_STS_REG ... RK818_SAVE_DATA19:
+ return true;
+ }
+
+ return false;
+}
+
static const struct regmap_config rk808_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.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 struct resource rtc_resources[] = {
{
.start = RK808_IRQ_RTC_ALARM,
}
};
+static struct resource pwrkey_resources[] = {
+ {
+ .start = RK805_IRQ_PWRON_RISE,
+ .end = RK805_IRQ_PWRON_RISE,
+ .flags = IORESOURCE_IRQ,
+ },
+ {
+ .start = RK805_IRQ_PWRON_FALL,
+ .end = RK805_IRQ_PWRON_FALL,
+ .flags = IORESOURCE_IRQ,
+ },
+};
+
static const struct mfd_cell rk808s[] = {
{ .name = "rk808-clkout", },
{ .name = "rk808-regulator", },
},
};
-static const struct rk808_reg_data pre_init_reg[] = {
+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_RTC_CTRL_REG, RTC_STOP, RTC_STOP},
{ RK808_VB_MON_REG, MASK_ALL, VB_LO_ACT |
VB_LO_SEL_3500MV },
};
.val_bits = 8,
.max_register = RK818_SAVE_DATA19,
.cache_type = REGCACHE_RBTREE,
- .volatile_reg = rk808_is_volatile_reg,
+ .volatile_reg = rk818_is_volatile_reg,
};
static const struct mfd_cell rk818s[] = {
{ .name = "rk808-clkout", },
- { .name = "rk818-regulator", },
+ { .name = "rk808-regulator", },
+ { .name = "rk818-battery", .of_compatible = "rk818-battery", },
+ { .name = "rk818-charger", },
{
.name = "rk808-rtc",
.num_resources = ARRAY_SIZE(rtc_resources),
BOOST_EN_ENABLE | SWITCH_EN_ENABLE },
{ RK818_SLEEP_SET_OFF_REG1, OTG_SLP_SET_MASK, OTG_SLP_SET_OFF },
{ RK818_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_250MA },
+ { RK808_RTC_CTRL_REG, RTC_STOP, RTC_STOP},
};
static const struct regmap_irq rk818_irqs[] = {
.mask = TS2_MASK,
.reg_offset = 1,
},
+ [RK818_IRQ_CHG_CVTLIM] = {
+ .mask = CHG_CVTLIM_MASK,
+ .reg_offset = 1,
+ },
[RK818_IRQ_DISCHG_ILIM] = {
.mask = DISCHG_ILIM_MASK,
.reg_offset = 1,
.init_ack_masked = true,
};
-static struct rk8xx_power_data rk808_power_data = {
- .name = "rk808",
- .rk8xx_pre_init_reg = pre_init_reg,
- .reg_num = ARRAY_SIZE(pre_init_reg),
- .rk8xx_regmap_config = &rk808_regmap_config,
- .rk8xx_cell = rk808s,
- .cell_num = ARRAY_SIZE(rk808s),
- .rk8xx_irq_chip = &rk808_irq_chip,
+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 struct rk8xx_power_data rk818_power_data = {
- .name = "rk818",
- .rk8xx_pre_init_reg = rk818_pre_init_reg,
- .reg_num = ARRAY_SIZE(rk818_pre_init_reg),
- .rk8xx_regmap_config = &rk818_regmap_config,
- .rk8xx_cell = rk818s,
- .cell_num = ARRAY_SIZE(rk818s),
- .rk8xx_irq_chip = &rk818_irq_chip,
+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 mfd_cell rk805s[] = {
+ { .name = "rk818-regulator", },
+ { .name = "rk8xx-gpio", },
+ {
+ .name = "rk8xx-pwrkey",
+ .num_resources = ARRAY_SIZE(pwrkey_resources),
+ .resources = &pwrkey_resources[0],
+ },
+ {
+ .name = "rk808-rtc",
+ .num_resources = ARRAY_SIZE(rtc_resources),
+ .resources = &rtc_resources[0],
+ },
+};
+
+static const struct rk808_reg_data rk805_pre_init_reg[] = {
+ {RK805_BUCK4_CONFIG_REG, BUCK_ILMIN_MASK, BUCK_ILMIN_400MA},
+ {RK805_GPIO_IO_POL_REG, SLP_SD_MSK, SLEEP_FUN},
+ {RK808_RTC_CTRL_REG, RTC_STOP, RTC_STOP},
+ {RK805_THERMAL_REG, TEMP_HOTDIE_MSK, TEMP115C},
+};
+
+static int (*pm_shutdown)(struct regmap *regmap);
+static int (*pm_shutdown_prepare)(struct regmap *regmap);
static struct i2c_client *rk808_i2c_client;
+
+static void rk808_device_shutdown_prepare(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;
+ }
+
+ if (pm_shutdown_prepare) {
+ ret = pm_shutdown_prepare(rk808->regmap);
+ if (ret)
+ dev_err(&rk808_i2c_client->dev,
+ "power off prepare error!\n");
+ }
+}
+
static void rk808_device_shutdown(void)
{
int ret;
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");
+ /* close rtc int when power off */
+ regmap_update_bits(rk808->regmap,
+ RK808_INT_STS_MSK_REG1,
+ (0x3 << 5), (0x3 << 5));
+ regmap_update_bits(rk808->regmap,
+ RK808_RTC_INT_REG,
+ (0x3 << 2), (0x0 << 2));
+ if (pm_shutdown) {
+ ret = pm_shutdown(rk808->regmap);
+ if (ret)
+ dev_err(&rk808_i2c_client->dev, "power off error!\n");
+ }
+}
+
+static ssize_t rk8xx_dbg_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int ret;
+ char cmd;
+ u32 input[2], addr, data;
+ struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
+
+ ret = sscanf(buf, "%c ", &cmd);
+ switch (cmd) {
+ case 'w':
+ ret = sscanf(buf, "%c %x %x ", &cmd, &input[0], &input[1]);
+ if (ret != 3) {
+ pr_err("erro! cmd format: echo w [addr] [value]\n");
+ goto out;
+ };
+ addr = input[0] & 0xff;
+ data = input[1] & 0xff;
+ pr_info("cmd : %c %x %x\n\n", cmd, input[0], input[1]);
+ regmap_write(rk808->regmap, addr, data);
+ regmap_read(rk808->regmap, addr, &data);
+ pr_info("new: %x %x\n", addr, data);
+ break;
+ case 'r':
+ ret = sscanf(buf, "%c %x ", &cmd, &input[0]);
+ if (ret != 2) {
+ pr_err("erro! cmd format: echo r [addr]\n");
+ goto out;
+ };
+ pr_info("cmd : %c %x\n\n", cmd, input[0]);
+ addr = input[0] & 0xff;
+ regmap_read(rk808->regmap, addr, &data);
+ pr_info("%x %x\n", input[0], data);
+ break;
+ default:
+ pr_err("Unknown command\n");
+ break;
+ }
+
+out:
+ return count;
}
+static struct kobject *rk8xx_kobj;
+static struct device_attribute rk8xx_attrs =
+ __ATTR(rk8xx_dbg, 0200, NULL, rk8xx_dbg_store);
+
static const struct of_device_id rk808_of_match[] = {
- {
- .compatible = "rockchip,rk808",
- .data = &rk808_power_data,
- },
- {
- .compatible = "rockchip,rk818",
- .data = &rk818_power_data,
- },
+ { .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)
{
- const struct of_device_id *of_id =
- of_match_device(rk808_of_match, &client->dev);
- const struct rk8xx_power_data *pdata = of_id->data;
struct device_node *np = client->dev.of_node;
struct rk808 *rk808;
- int pm_off = 0;
- int ret;
- int i;
-
- if (!of_id) {
- dev_err(&client->dev, "Failed to find matching dt id\n");
- return -ENODEV;
- }
+ int (*pm_shutdown_fn)(struct regmap *regmap) = NULL;
+ int (*pm_shutdown_prepare_fn)(struct regmap *regmap) = NULL;
+ const struct rk808_reg_data *pre_init_reg;
+ const struct regmap_config *regmap_config;
+ const struct regmap_irq_chip *irq_chip;
+ const struct mfd_cell *cell;
+ u8 on_source = 0, off_source = 0;
+ int msb, lsb, reg_num, cell_num;
+ int ret, i, pm_off = 0;
+ unsigned int on, off;
if (!client->irq) {
dev_err(&client->dev, "No interrupt support, no core IRQ\n");
if (!rk808)
return -ENOMEM;
- rk808->regmap = devm_regmap_init_i2c(client,
- pdata->rk8xx_regmap_config);
+ /* 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, "Pmic Chip id: 0x%lx\n", rk808->variant);
+
+ /* set Chip platform init data*/
+ switch (rk808->variant) {
+ case RK818_ID:
+ cell = rk818s;
+ cell_num = ARRAY_SIZE(rk818s);
+ pre_init_reg = rk818_pre_init_reg;
+ reg_num = ARRAY_SIZE(rk818_pre_init_reg);
+ regmap_config = &rk818_regmap_config;
+ irq_chip = &rk818_irq_chip;
+ pm_shutdown_fn = rk818_shutdown;
+ on_source = RK818_ON_SOURCE_REG;
+ off_source = RK818_OFF_SOURCE_REG;
+ break;
+ case RK808_ID:
+ cell = rk808s;
+ cell_num = ARRAY_SIZE(rk808s);
+ pre_init_reg = rk808_pre_init_reg;
+ reg_num = ARRAY_SIZE(rk808_pre_init_reg);
+ regmap_config = &rk808_regmap_config;
+ irq_chip = &rk808_irq_chip;
+ pm_shutdown_fn = rk808_shutdown;
+ break;
+ case RK805_ID:
+ cell = rk805s;
+ cell_num = ARRAY_SIZE(rk805s);
+ pre_init_reg = rk805_pre_init_reg;
+ reg_num = ARRAY_SIZE(rk805_pre_init_reg);
+ regmap_config = &rk805_regmap_config;
+ irq_chip = &rk805_irq_chip;
+ pm_shutdown_prepare_fn = rk805_shutdown_prepare;
+ on_source = RK805_ON_SOURCE_REG;
+ off_source = RK805_OFF_SOURCE_REG;
+ break;
+ default:
+ dev_err(&client->dev, "unsupported RK8XX ID 0x%lx\n",
+ rk808->variant);
+ return -EINVAL;
+ }
+
+ rk808->regmap = devm_regmap_init_i2c(client, regmap_config);
if (IS_ERR(rk808->regmap)) {
dev_err(&client->dev, "regmap initialization failed\n");
return PTR_ERR(rk808->regmap);
}
- for (i = 0; i < pdata->reg_num; i++) {
+ /* on & off source */
+ if (on_source && off_source) {
+ ret = regmap_read(rk808->regmap, on_source, &on);
+ if (ret) {
+ dev_err(&client->dev, "read 0x%x failed\n", on_source);
+ return ret;
+ }
+
+ ret = regmap_read(rk808->regmap, off_source, &off);
+ if (ret) {
+ dev_err(&client->dev, "read 0x%x failed\n", off_source);
+ return ret;
+ }
+
+ dev_info(&client->dev, "source: on=0x%02x, off=0x%02x\n",
+ on, off);
+ }
+
+ for (i = 0; i < reg_num; i++) {
ret = regmap_update_bits(rk808->regmap,
- pdata->rk8xx_pre_init_reg[i].addr,
- pdata->rk8xx_pre_init_reg[i].mask,
- pdata->rk8xx_pre_init_reg[i].value);
+ 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",
- pdata->rk8xx_pre_init_reg[i].addr);
+ pre_init_reg[i].addr);
return ret;
}
}
ret = regmap_add_irq_chip(rk808->regmap, client->irq,
IRQF_ONESHOT, -1,
- pdata->rk8xx_irq_chip, &rk808->irq_data);
+ irq_chip, &rk808->irq_data);
if (ret) {
dev_err(&client->dev, "Failed to add irq_chip %d\n", ret);
return ret;
i2c_set_clientdata(client, rk808);
ret = mfd_add_devices(&client->dev, -1,
- pdata->rk8xx_cell, pdata->cell_num,
+ cell, cell_num,
NULL, 0, regmap_irq_get_domain(rk808->irq_data));
if (ret) {
dev_err(&client->dev, "failed to add MFD devices %d\n", ret);
"rockchip,system-power-controller");
if (pm_off) {
rk808_i2c_client = client;
- pm_power_off = rk808_device_shutdown;
+ if (pm_shutdown_prepare_fn) {
+ pm_shutdown_prepare = pm_shutdown_prepare_fn;
+ pm_power_off_prepare = rk808_device_shutdown_prepare;
+ }
+ if (pm_shutdown_fn) {
+ pm_shutdown = pm_shutdown_fn;
+ pm_power_off = rk808_device_shutdown;
+ }
+ }
+
+ rk8xx_kobj = kobject_create_and_add("rk8xx", NULL);
+ if (rk8xx_kobj) {
+ ret = sysfs_create_file(rk8xx_kobj, &rk8xx_attrs.attr);
+ if (ret)
+ dev_err(&client->dev, "create rk8xx sysfs error\n");
}
return 0;
regmap_del_irq_chip(client->irq, rk808->irq_data);
mfd_remove_devices(&client->dev);
- pm_power_off = NULL;
+ if (pm_power_off == rk808_device_shutdown)
+ pm_power_off = NULL;
+ if (pm_power_off_prepare == rk808_device_shutdown_prepare)
+ pm_power_off_prepare = NULL;
return 0;
}
static const struct i2c_device_id rk808_ids[] = {
+ { "rk805" },
{ "rk808" },
{ "rk818" },
{ },
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Chris Zhong <zyw@rock-chips.com>");
MODULE_AUTHOR("Zhang Qing <zhangqing@rock-chips.com>");
+MODULE_AUTHOR("Chen jianhong <chenjh@rock-chips.com>");
MODULE_DESCRIPTION("RK808 PMIC driver");
projects / firefly-linux-kernel-4.4.55.git / blobdiff