On Wed, 03 Sep 2014, Chris Zhong wrote: > The RK808 chip is a power management IC for multimedia and handheld > devices. It contains the following components: > > - Regulators > - RTC > - Clkout > > The RK808 core driver is registered as a platform driver and provides > communication through I2C with the host device for the different > components. > > Signed-off-by: Chris Zhong <[email protected]> > Signed-off-by: Zhang Qing <[email protected]> > > Acked-by: Lee Jones <[email protected]> > Tested-by: Heiko <[email protected]>
Applied, thanks. > --- > > Changes in v8: > Adviced by Lee Jones > - add Author > - remove if(np) and of_match_ptr() since depend on OF > - coding style > > Changes in v7: > Adviced by Lee Jones > - coding style > - remove rk808_pre_init function > Adviced by Doug > - add "&& OF" to the dependencies > - add .init_ack_masked = true in rk808_irq_chip > > Changes in v6: > Adviced by Lee Jones in v2 > - rk808_i2c_client instead of g_rk808 > - remove pdata form struct rk808 > > Changes in v5: None > Changes in v4: > Adviced by Lee Jones in v2 > - modify the description in Kconfig > - remove some unnecessary header files > - remove dev from struct rk808 > - use enum for define RK808_ID... > > Changes in v3: > - fix compile err > > Changes in v2: > Adviced by Mark Browm: > - use defines for register setting value > - remove rtc alarm disable in shutdown > - remove while(1) in shutdown > - remove read 0x2f in probe > > drivers/mfd/Kconfig | 13 +++ > drivers/mfd/Makefile | 1 + > drivers/mfd/rk808.c | 245 > +++++++++++++++++++++++++++++++++++++++++++++ > include/linux/mfd/rk808.h | 196 ++++++++++++++++++++++++++++++++++++ > 4 files changed, 455 insertions(+) > create mode 100644 drivers/mfd/rk808.c > create mode 100644 include/linux/mfd/rk808.h > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index de5abf2..4097793 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -582,6 +582,19 @@ config MFD_RC5T583 > Additional drivers must be enabled in order to use the > different functionality of the device. > > +config MFD_RK808 > + tristate "Rockchip RK808 Power Management chip" > + depends on I2C && OF > + select MFD_CORE > + select REGMAP_I2C > + select REGMAP_IRQ > + help > + If you say yes here you get support for the RK808 > + Power Management chips. > + This driver provides common support for accessing the device > + through I2C interface. The device supports multiple sub-devices > + including interrupts, RTC, LDO & DCDC regulators, and onkey. > + > config MFD_SEC_CORE > bool "SAMSUNG Electronics PMIC Series Support" > depends on I2C=y > diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile > index f001487..dbc28e7 100644 > --- a/drivers/mfd/Makefile > +++ b/drivers/mfd/Makefile > @@ -160,6 +160,7 @@ obj-$(CONFIG_MFD_INTEL_MSIC) += intel_msic.o > obj-$(CONFIG_MFD_PALMAS) += palmas.o > obj-$(CONFIG_MFD_VIPERBOARD) += viperboard.o > obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o > +obj-$(CONFIG_MFD_RK808) += rk808.o > obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o > obj-$(CONFIG_MFD_SYSCON) += syscon.o > obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o > diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c > new file mode 100644 > index 0000000..0324422 > --- /dev/null > +++ b/drivers/mfd/rk808.c > @@ -0,0 +1,245 @@ > +/* > + * MFD core driver for Rockchip RK808 > + * > + * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd > + * > + * Author: Chris Zhong <[email protected]> > + * Author: Zhang Qing <[email protected]> > + * > + * 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/regmap.h> > + > +struct rk808_reg_data { > + int addr; > + int mask; > + int value; > +}; > + > +static const struct regmap_config rk808_regmap_config = { > + .reg_bits = 8, > + .val_bits = 8, > + .max_register = RK808_IO_POL_REG, > +}; > + > +static struct resource rtc_resources[] = { > + { > + .start = RK808_IRQ_RTC_ALARM, > + .end = RK808_IRQ_RTC_ALARM, > + .flags = IORESOURCE_IRQ, > + } > +}; > + > +static const struct mfd_cell rk808s[] = { > + { .name = "rk808-clkout", }, > + { .name = "rk808-regulator", }, > + { > + .name = "rk808-rtc", > + .num_resources = ARRAY_SIZE(rtc_resources), > + .resources = &rtc_resources[0], > + }, > +}; > + > +static const struct rk808_reg_data 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_VB_MON_REG, MASK_ALL, VB_LO_ACT | > + VB_LO_SEL_3500MV }, > +}; > + > +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 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 struct i2c_client *rk808_i2c_client; > +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 int rk808_probe(struct i2c_client *client, > + const struct i2c_device_id *id) > +{ > + struct device_node *np = client->dev.of_node; > + struct rk808 *rk808; > + int pm_off = 0; > + int ret; > + int i; > + > + if (!client->irq) { > + dev_err(&client->dev, "No interrupt support, no core IRQ\n"); > + return -EINVAL; > + } > + > + rk808 = devm_kzalloc(&client->dev, sizeof(*rk808), GFP_KERNEL); > + if (!rk808) > + return -ENOMEM; > + > + rk808->regmap = devm_regmap_init_i2c(client, &rk808_regmap_config); > + if (IS_ERR(rk808->regmap)) { > + dev_err(&client->dev, "regmap initialization failed\n"); > + return PTR_ERR(rk808->regmap); > + } > + > + for (i = 0; i < ARRAY_SIZE(pre_init_reg); 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 = regmap_add_irq_chip(rk808->regmap, client->irq, > + IRQF_ONESHOT, -1, > + &rk808_irq_chip, &rk808->irq_data); > + if (ret) { > + dev_err(&client->dev, "Failed to add irq_chip %d\n", ret); > + return ret; > + } > + > + rk808->i2c = client; > + i2c_set_clientdata(client, rk808); > + > + ret = mfd_add_devices(&client->dev, -1, > + rk808s, ARRAY_SIZE(rk808s), > + 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 = rk808_device_shutdown; > + } > + > + 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); > + mfd_remove_devices(&client->dev); > + pm_power_off = NULL; > + > + return 0; > +} > + > +static struct of_device_id rk808_of_match[] = { > + { .compatible = "rockchip,rk808" }, > + { }, > +}; > +MODULE_DEVICE_TABLE(of, rk808_of_match); > + > +static const struct i2c_device_id rk808_ids[] = { > + { "rk808" }, > + { }, > +}; > +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 <[email protected]>"); > +MODULE_AUTHOR("Zhang Qing <[email protected]>"); > +MODULE_DESCRIPTION("RK808 PMIC driver"); > diff --git a/include/linux/mfd/rk808.h b/include/linux/mfd/rk808.h > new file mode 100644 > index 0000000..fb09312 > --- /dev/null > +++ b/include/linux/mfd/rk808.h > @@ -0,0 +1,196 @@ > +/* > + * rk808.h for Rockchip RK808 > + * > + * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd > + * > + * Author: Chris Zhong <[email protected]> > + * Author: Zhang Qing <[email protected]> > + * > + * 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. > + */ > + > +#ifndef __LINUX_REGULATOR_rk808_H > +#define __LINUX_REGULATOR_rk808_H > + > +#include <linux/regulator/machine.h> > +#include <linux/regmap.h> > + > +/* > + * rk808 Global Register Map. > + */ > + > +#define RK808_DCDC1 0 /* (0+RK808_START) */ > +#define RK808_LDO1 4 /* (4+RK808_START) */ > +#define RK808_NUM_REGULATORS 14 > + > +enum rk808_reg { > + RK808_ID_DCDC1, > + RK808_ID_DCDC2, > + RK808_ID_DCDC3, > + RK808_ID_DCDC4, > + RK808_ID_LDO1, > + RK808_ID_LDO2, > + RK808_ID_LDO3, > + RK808_ID_LDO4, > + RK808_ID_LDO5, > + RK808_ID_LDO6, > + RK808_ID_LDO7, > + RK808_ID_LDO8, > + RK808_ID_SWITCH1, > + RK808_ID_SWITCH2, > +}; > + > +#define RK808_SECONDS_REG 0x00 > +#define RK808_MINUTES_REG 0x01 > +#define RK808_HOURS_REG 0x02 > +#define RK808_DAYS_REG 0x03 > +#define RK808_MONTHS_REG 0x04 > +#define RK808_YEARS_REG 0x05 > +#define RK808_WEEKS_REG 0x06 > +#define RK808_ALARM_SECONDS_REG 0x08 > +#define RK808_ALARM_MINUTES_REG 0x09 > +#define RK808_ALARM_HOURS_REG 0x0a > +#define RK808_ALARM_DAYS_REG 0x0b > +#define RK808_ALARM_MONTHS_REG 0x0c > +#define RK808_ALARM_YEARS_REG 0x0d > +#define RK808_RTC_CTRL_REG 0x10 > +#define RK808_RTC_STATUS_REG 0x11 > +#define RK808_RTC_INT_REG 0x12 > +#define RK808_RTC_COMP_LSB_REG 0x13 > +#define RK808_RTC_COMP_MSB_REG 0x14 > +#define RK808_CLK32OUT_REG 0x20 > +#define RK808_VB_MON_REG 0x21 > +#define RK808_THERMAL_REG 0x22 > +#define RK808_DCDC_EN_REG 0x23 > +#define RK808_LDO_EN_REG 0x24 > +#define RK808_SLEEP_SET_OFF_REG1 0x25 > +#define RK808_SLEEP_SET_OFF_REG2 0x26 > +#define RK808_DCDC_UV_STS_REG 0x27 > +#define RK808_DCDC_UV_ACT_REG 0x28 > +#define RK808_LDO_UV_STS_REG 0x29 > +#define RK808_LDO_UV_ACT_REG 0x2a > +#define RK808_DCDC_PG_REG 0x2b > +#define RK808_LDO_PG_REG 0x2c > +#define RK808_VOUT_MON_TDB_REG 0x2d > +#define RK808_BUCK1_CONFIG_REG 0x2e > +#define RK808_BUCK1_ON_VSEL_REG 0x2f > +#define RK808_BUCK1_SLP_VSEL_REG 0x30 > +#define RK808_BUCK1_DVS_VSEL_REG 0x31 > +#define RK808_BUCK2_CONFIG_REG 0x32 > +#define RK808_BUCK2_ON_VSEL_REG 0x33 > +#define RK808_BUCK2_SLP_VSEL_REG 0x34 > +#define RK808_BUCK2_DVS_VSEL_REG 0x35 > +#define RK808_BUCK3_CONFIG_REG 0x36 > +#define RK808_BUCK4_CONFIG_REG 0x37 > +#define RK808_BUCK4_ON_VSEL_REG 0x38 > +#define RK808_BUCK4_SLP_VSEL_REG 0x39 > +#define RK808_BOOST_CONFIG_REG 0x3a > +#define RK808_LDO1_ON_VSEL_REG 0x3b > +#define RK808_LDO1_SLP_VSEL_REG 0x3c > +#define RK808_LDO2_ON_VSEL_REG 0x3d > +#define RK808_LDO2_SLP_VSEL_REG 0x3e > +#define RK808_LDO3_ON_VSEL_REG 0x3f > +#define RK808_LDO3_SLP_VSEL_REG 0x40 > +#define RK808_LDO4_ON_VSEL_REG 0x41 > +#define RK808_LDO4_SLP_VSEL_REG 0x42 > +#define RK808_LDO5_ON_VSEL_REG 0x43 > +#define RK808_LDO5_SLP_VSEL_REG 0x44 > +#define RK808_LDO6_ON_VSEL_REG 0x45 > +#define RK808_LDO6_SLP_VSEL_REG 0x46 > +#define RK808_LDO7_ON_VSEL_REG 0x47 > +#define RK808_LDO7_SLP_VSEL_REG 0x48 > +#define RK808_LDO8_ON_VSEL_REG 0x49 > +#define RK808_LDO8_SLP_VSEL_REG 0x4a > +#define RK808_DEVCTRL_REG 0x4b > +#define RK808_INT_STS_REG1 0x4c > +#define RK808_INT_STS_MSK_REG1 0x4d > +#define RK808_INT_STS_REG2 0x4e > +#define RK808_INT_STS_MSK_REG2 0x4f > +#define RK808_IO_POL_REG 0x50 > + > +/* IRQ Definitions */ > +#define RK808_IRQ_VOUT_LO 0 > +#define RK808_IRQ_VB_LO 1 > +#define RK808_IRQ_PWRON 2 > +#define RK808_IRQ_PWRON_LP 3 > +#define RK808_IRQ_HOTDIE 4 > +#define RK808_IRQ_RTC_ALARM 5 > +#define RK808_IRQ_RTC_PERIOD 6 > +#define RK808_IRQ_PLUG_IN_INT 7 > +#define RK808_IRQ_PLUG_OUT_INT 8 > +#define RK808_NUM_IRQ 9 > + > +#define RK808_IRQ_VOUT_LO_MSK BIT(0) > +#define RK808_IRQ_VB_LO_MSK BIT(1) > +#define RK808_IRQ_PWRON_MSK BIT(2) > +#define RK808_IRQ_PWRON_LP_MSK BIT(3) > +#define RK808_IRQ_HOTDIE_MSK BIT(4) > +#define RK808_IRQ_RTC_ALARM_MSK BIT(5) > +#define RK808_IRQ_RTC_PERIOD_MSK BIT(6) > +#define RK808_IRQ_PLUG_IN_INT_MSK BIT(0) > +#define RK808_IRQ_PLUG_OUT_INT_MSK BIT(1) > + > +#define RK808_VBAT_LOW_2V8 0x00 > +#define RK808_VBAT_LOW_2V9 0x01 > +#define RK808_VBAT_LOW_3V0 0x02 > +#define RK808_VBAT_LOW_3V1 0x03 > +#define RK808_VBAT_LOW_3V2 0x04 > +#define RK808_VBAT_LOW_3V3 0x05 > +#define RK808_VBAT_LOW_3V4 0x06 > +#define RK808_VBAT_LOW_3V5 0x07 > +#define VBAT_LOW_VOL_MASK (0x07 << 0) > +#define EN_VABT_LOW_SHUT_DOWN (0x00 << 4) > +#define EN_VBAT_LOW_IRQ (0x1 << 4) > +#define VBAT_LOW_ACT_MASK (0x1 << 4) > + > +#define BUCK_ILMIN_MASK (7 << 0) > +#define BOOST_ILMIN_MASK (7 << 0) > +#define BUCK1_RATE_MASK (3 << 3) > +#define BUCK2_RATE_MASK (3 << 3) > +#define MASK_ALL 0xff > + > +#define SWITCH2_EN BIT(6) > +#define SWITCH1_EN BIT(5) > +#define DEV_OFF_RST BIT(3) > + > +#define VB_LO_ACT BIT(4) > +#define VB_LO_SEL_3500MV (7 << 0) > + > +#define VOUT_LO_INT BIT(0) > +#define CLK32KOUT2_EN BIT(0) > + > +enum { > + BUCK_ILMIN_50MA, > + BUCK_ILMIN_100MA, > + BUCK_ILMIN_150MA, > + BUCK_ILMIN_200MA, > + BUCK_ILMIN_250MA, > + BUCK_ILMIN_300MA, > + BUCK_ILMIN_350MA, > + BUCK_ILMIN_400MA, > +}; > + > +enum { > + BOOST_ILMIN_75MA, > + BOOST_ILMIN_100MA, > + BOOST_ILMIN_125MA, > + BOOST_ILMIN_150MA, > + BOOST_ILMIN_175MA, > + BOOST_ILMIN_200MA, > + BOOST_ILMIN_225MA, > + BOOST_ILMIN_250MA, > +}; > + > +struct rk808 { > + struct i2c_client *i2c; > + struct regmap_irq_chip_data *irq_data; > + struct regmap *regmap; > +}; > +#endif /* __LINUX_REGULATOR_rk808_H */ -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
