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mfd: rk808: Add RK817 and RK809 support
The RK809 and RK817 are a Power Management IC (PMIC) for multimedia and handheld devices. They contains the following components: - Regulators - RTC - Clocking Both RK809 and RK817 chips are using a similar register map, so we can reuse the RTC and Clocking functionality. Most of regulators have a some implementation also. Signed-off-by: Tony Xie <tony.xie@rock-chips.com> Acked-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Tony Xie
Lee Jones
parent
a188339ca5
commit
586c1b4125
@ -1030,14 +1030,14 @@ config MFD_RC5T583
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different functionality of the device.
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config MFD_RK808
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tristate "Rockchip RK805/RK808/RK818 Power Management Chip"
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tristate "Rockchip RK805/RK808/RK809/RK817/RK818 Power Management Chip"
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depends on I2C && OF
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select MFD_CORE
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select REGMAP_I2C
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select REGMAP_IRQ
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help
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If you say yes here you get support for the RK805, RK808 and RK818
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Power Management chips.
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If you say yes here you get support for the RK805, RK808, RK809,
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RK817 and RK818 Power Management chips.
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This driver provides common support for accessing the device
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through I2C interface. The device supports multiple sub-devices
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including interrupts, RTC, LDO & DCDC regulators, and onkey.
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@ -27,6 +27,7 @@
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#include <linux/module.h>
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#include <linux/of_device.h>
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#include <linux/regmap.h>
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#include <linux/syscore_ops.h>
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struct rk808_reg_data {
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int addr;
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@ -62,6 +63,27 @@ static bool rk808_is_volatile_reg(struct device *dev, unsigned int reg)
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return false;
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}
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static bool rk817_is_volatile_reg(struct device *dev, unsigned int reg)
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{
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/*
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* Notes:
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* - Technically the ROUND_30s bit makes RTC_CTRL_REG volatile, but
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* we don't use that feature. It's better to cache.
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*/
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switch (reg) {
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case RK817_SECONDS_REG ... RK817_WEEKS_REG:
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case RK817_RTC_STATUS_REG:
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case RK817_INT_STS_REG0:
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case RK817_INT_STS_REG1:
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case RK817_INT_STS_REG2:
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case RK817_SYS_STS:
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return true;
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}
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return true;
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}
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static const struct regmap_config rk818_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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@ -86,6 +108,14 @@ static const struct regmap_config rk808_regmap_config = {
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.volatile_reg = rk808_is_volatile_reg,
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};
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static const struct regmap_config rk817_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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.max_register = RK817_GPIO_INT_CFG,
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.cache_type = REGCACHE_NONE,
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.volatile_reg = rk817_is_volatile_reg,
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};
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static struct resource rtc_resources[] = {
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{
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.start = RK808_IRQ_RTC_ALARM,
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@ -94,6 +124,10 @@ static struct resource rtc_resources[] = {
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}
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};
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static struct resource rk817_rtc_resources[] = {
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DEFINE_RES_IRQ(RK817_IRQ_RTC_ALARM),
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};
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static struct resource rk805_key_resources[] = {
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{
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.start = RK805_IRQ_PWRON_FALL,
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@ -107,6 +141,11 @@ static struct resource rk805_key_resources[] = {
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}
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};
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static struct resource rk817_pwrkey_resources[] = {
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DEFINE_RES_IRQ(RK817_IRQ_PWRON_RISE),
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DEFINE_RES_IRQ(RK817_IRQ_PWRON_FALL),
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};
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static const struct mfd_cell rk805s[] = {
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{ .name = "rk808-clkout", },
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{ .name = "rk808-regulator", },
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@ -132,6 +171,21 @@ static const struct mfd_cell rk808s[] = {
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},
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};
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static const struct mfd_cell rk817s[] = {
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{ .name = "rk808-clkout",},
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{ .name = "rk808-regulator",},
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{
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.name = "rk8xx-pwrkey",
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.num_resources = ARRAY_SIZE(rk817_pwrkey_resources),
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.resources = &rk817_pwrkey_resources[0],
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},
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{
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.name = "rk808-rtc",
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.num_resources = ARRAY_SIZE(rk817_rtc_resources),
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.resources = &rk817_rtc_resources[0],
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},
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};
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static const struct mfd_cell rk818s[] = {
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{ .name = "rk808-clkout", },
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{ .name = "rk808-regulator", },
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@ -167,6 +221,13 @@ static const struct rk808_reg_data rk808_pre_init_reg[] = {
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VB_LO_SEL_3500MV },
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};
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static const struct rk808_reg_data rk817_pre_init_reg[] = {
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{RK817_RTC_CTRL_REG, RTC_STOP, RTC_STOP},
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{RK817_GPIO_INT_CFG, RK817_INT_POL_MSK, RK817_INT_POL_H},
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{RK817_SYS_CFG(1), RK817_HOTDIE_TEMP_MSK | RK817_TSD_TEMP_MSK,
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RK817_HOTDIE_105 | RK817_TSD_140},
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};
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static const struct rk808_reg_data rk818_pre_init_reg[] = {
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/* improve efficiency */
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{ RK818_BUCK2_CONFIG_REG, BUCK2_RATE_MASK, BUCK_ILMIN_250MA },
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@ -332,6 +393,33 @@ static const struct regmap_irq rk818_irqs[] = {
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},
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};
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static const struct regmap_irq rk817_irqs[RK817_IRQ_END] = {
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REGMAP_IRQ_REG_LINE(0, 8),
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REGMAP_IRQ_REG_LINE(1, 8),
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REGMAP_IRQ_REG_LINE(2, 8),
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REGMAP_IRQ_REG_LINE(3, 8),
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REGMAP_IRQ_REG_LINE(4, 8),
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REGMAP_IRQ_REG_LINE(5, 8),
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REGMAP_IRQ_REG_LINE(6, 8),
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REGMAP_IRQ_REG_LINE(7, 8),
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REGMAP_IRQ_REG_LINE(8, 8),
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REGMAP_IRQ_REG_LINE(9, 8),
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REGMAP_IRQ_REG_LINE(10, 8),
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REGMAP_IRQ_REG_LINE(11, 8),
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REGMAP_IRQ_REG_LINE(12, 8),
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REGMAP_IRQ_REG_LINE(13, 8),
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REGMAP_IRQ_REG_LINE(14, 8),
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REGMAP_IRQ_REG_LINE(15, 8),
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REGMAP_IRQ_REG_LINE(16, 8),
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REGMAP_IRQ_REG_LINE(17, 8),
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REGMAP_IRQ_REG_LINE(18, 8),
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REGMAP_IRQ_REG_LINE(19, 8),
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REGMAP_IRQ_REG_LINE(20, 8),
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REGMAP_IRQ_REG_LINE(21, 8),
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REGMAP_IRQ_REG_LINE(22, 8),
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REGMAP_IRQ_REG_LINE(23, 8)
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};
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static struct regmap_irq_chip rk805_irq_chip = {
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.name = "rk805",
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.irqs = rk805_irqs,
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@ -355,6 +443,18 @@ static const struct regmap_irq_chip rk808_irq_chip = {
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.init_ack_masked = true,
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};
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static struct regmap_irq_chip rk817_irq_chip = {
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.name = "rk817",
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.irqs = rk817_irqs,
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.num_irqs = ARRAY_SIZE(rk817_irqs),
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.num_regs = 3,
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.irq_reg_stride = 2,
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.status_base = RK817_INT_STS_REG0,
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.mask_base = RK817_INT_STS_MSK_REG0,
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.ack_base = RK817_INT_STS_REG0,
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.init_ack_masked = true,
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};
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static const struct regmap_irq_chip rk818_irq_chip = {
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.name = "rk818",
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.irqs = rk818_irqs,
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@ -423,9 +523,33 @@ static void rk818_device_shutdown(void)
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dev_err(&rk808_i2c_client->dev, "power off error!\n");
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}
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static void rk8xx_syscore_shutdown(void)
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{
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struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
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int ret;
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if (system_state == SYSTEM_POWER_OFF &&
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(rk808->variant == RK809_ID || rk808->variant == RK817_ID)) {
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ret = regmap_update_bits(rk808->regmap,
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RK817_SYS_CFG(3),
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RK817_SLPPIN_FUNC_MSK,
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SLPPIN_DN_FUN);
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if (ret) {
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dev_warn(&rk808_i2c_client->dev,
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"Cannot switch to power down function\n");
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}
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}
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}
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static struct syscore_ops rk808_syscore_ops = {
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.shutdown = rk8xx_syscore_shutdown,
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};
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static const struct of_device_id rk808_of_match[] = {
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{ .compatible = "rockchip,rk805" },
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{ .compatible = "rockchip,rk808" },
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{ .compatible = "rockchip,rk809" },
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{ .compatible = "rockchip,rk817" },
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{ .compatible = "rockchip,rk818" },
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{ },
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};
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@ -438,10 +562,11 @@ static int rk808_probe(struct i2c_client *client,
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struct rk808 *rk808;
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const struct rk808_reg_data *pre_init_reg;
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const struct mfd_cell *cells;
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void (*pm_pwroff_fn)(void);
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void (*pm_pwroff_fn)(void) = NULL;
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int nr_pre_init_regs;
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int nr_cells;
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int pm_off = 0, msb, lsb;
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unsigned char pmic_id_msb, pmic_id_lsb;
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int ret;
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int i;
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@ -449,15 +574,24 @@ static int rk808_probe(struct i2c_client *client,
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if (!rk808)
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return -ENOMEM;
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if (of_device_is_compatible(np, "rockchip,rk817") ||
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of_device_is_compatible(np, "rockchip,rk809")) {
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pmic_id_msb = RK817_ID_MSB;
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pmic_id_lsb = RK817_ID_LSB;
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} else {
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pmic_id_msb = RK808_ID_MSB;
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pmic_id_lsb = RK808_ID_LSB;
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}
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/* Read chip variant */
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msb = i2c_smbus_read_byte_data(client, RK808_ID_MSB);
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msb = i2c_smbus_read_byte_data(client, pmic_id_msb);
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if (msb < 0) {
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dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
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RK808_ID_MSB);
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return msb;
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}
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lsb = i2c_smbus_read_byte_data(client, RK808_ID_LSB);
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lsb = i2c_smbus_read_byte_data(client, pmic_id_lsb);
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if (lsb < 0) {
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dev_err(&client->dev, "failed to read the chip id at 0x%x\n",
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RK808_ID_LSB);
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@ -495,6 +629,16 @@ static int rk808_probe(struct i2c_client *client,
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nr_cells = ARRAY_SIZE(rk818s);
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pm_pwroff_fn = rk818_device_shutdown;
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break;
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case RK809_ID:
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case RK817_ID:
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rk808->regmap_cfg = &rk817_regmap_config;
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rk808->regmap_irq_chip = &rk817_irq_chip;
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pre_init_reg = rk817_pre_init_reg;
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nr_pre_init_regs = ARRAY_SIZE(rk817_pre_init_reg);
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cells = rk817s;
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nr_cells = ARRAY_SIZE(rk817s);
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register_syscore_ops(&rk808_syscore_ops);
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break;
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default:
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dev_err(&client->dev, "Unsupported RK8XX ID %lu\n",
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rk808->variant);
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@ -568,10 +712,52 @@ static int rk808_remove(struct i2c_client *client)
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return 0;
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}
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static int rk8xx_suspend(struct device *dev)
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{
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struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
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int ret = 0;
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switch (rk808->variant) {
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case RK809_ID:
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case RK817_ID:
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ret = regmap_update_bits(rk808->regmap,
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RK817_SYS_CFG(3),
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RK817_SLPPIN_FUNC_MSK,
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SLPPIN_SLP_FUN);
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break;
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default:
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break;
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}
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return ret;
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}
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static int rk8xx_resume(struct device *dev)
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{
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struct rk808 *rk808 = i2c_get_clientdata(rk808_i2c_client);
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int ret = 0;
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switch (rk808->variant) {
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case RK809_ID:
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case RK817_ID:
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ret = regmap_update_bits(rk808->regmap,
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RK817_SYS_CFG(3),
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RK817_SLPPIN_FUNC_MSK,
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SLPPIN_NULL_FUN);
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break;
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default:
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break;
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}
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return ret;
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}
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SIMPLE_DEV_PM_OPS(rk8xx_pm_ops, rk8xx_suspend, rk8xx_resume);
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static struct i2c_driver rk808_i2c_driver = {
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.driver = {
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.name = "rk808",
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.of_match_table = rk808_of_match,
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.pm = &rk8xx_pm_ops,
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},
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.probe = rk808_probe,
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.remove = rk808_remove,
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@ -382,6 +382,7 @@ enum rk805_reg {
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#define SWITCH1_EN BIT(5)
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#define DEV_OFF_RST BIT(3)
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#define DEV_OFF BIT(0)
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#define RTC_STOP BIT(0)
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#define VB_LO_ACT BIT(4)
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#define VB_LO_SEL_3500MV (7 << 0)
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@ -396,6 +397,175 @@ enum rk805_reg {
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#define SLEEP_FUN (0x1 << 2)
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#define RK8XX_ID_MSK 0xfff0
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#define FPWM_MODE BIT(7)
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enum rk817_reg_id {
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RK817_ID_DCDC1 = 0,
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RK817_ID_DCDC2,
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RK817_ID_DCDC3,
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RK817_ID_DCDC4,
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RK817_ID_LDO1,
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RK817_ID_LDO2,
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RK817_ID_LDO3,
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RK817_ID_LDO4,
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RK817_ID_LDO5,
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RK817_ID_LDO6,
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RK817_ID_LDO7,
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RK817_ID_LDO8,
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RK817_ID_LDO9,
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RK817_ID_BOOST,
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RK817_ID_BOOST_OTG_SW,
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RK817_NUM_REGULATORS
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};
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enum rk809_reg_id {
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RK809_ID_DCDC5 = RK817_ID_BOOST,
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RK809_ID_SW1,
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RK809_ID_SW2,
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RK809_NUM_REGULATORS
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};
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#define RK817_SECONDS_REG 0x00
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#define RK817_MINUTES_REG 0x01
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#define RK817_HOURS_REG 0x02
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#define RK817_DAYS_REG 0x03
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#define RK817_MONTHS_REG 0x04
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#define RK817_YEARS_REG 0x05
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#define RK817_WEEKS_REG 0x06
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#define RK817_ALARM_SECONDS_REG 0x07
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#define RK817_ALARM_MINUTES_REG 0x08
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#define RK817_ALARM_HOURS_REG 0x09
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#define RK817_ALARM_DAYS_REG 0x0a
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#define RK817_ALARM_MONTHS_REG 0x0b
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#define RK817_ALARM_YEARS_REG 0x0c
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#define RK817_RTC_CTRL_REG 0xd
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#define RK817_RTC_STATUS_REG 0xe
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#define RK817_RTC_INT_REG 0xf
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#define RK817_RTC_COMP_LSB_REG 0x10
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#define RK817_RTC_COMP_MSB_REG 0x11
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#define RK817_POWER_EN_REG(i) (0xb1 + (i))
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#define RK817_POWER_SLP_EN_REG(i) (0xb5 + (i))
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#define RK817_POWER_CONFIG (0xb9)
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#define RK817_BUCK_CONFIG_REG(i) (0xba + (i) * 3)
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#define RK817_BUCK1_ON_VSEL_REG 0xBB
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#define RK817_BUCK1_SLP_VSEL_REG 0xBC
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#define RK817_BUCK2_CONFIG_REG 0xBD
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#define RK817_BUCK2_ON_VSEL_REG 0xBE
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#define RK817_BUCK2_SLP_VSEL_REG 0xBF
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#define RK817_BUCK3_CONFIG_REG 0xC0
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#define RK817_BUCK3_ON_VSEL_REG 0xC1
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#define RK817_BUCK3_SLP_VSEL_REG 0xC2
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#define RK817_BUCK4_CONFIG_REG 0xC3
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#define RK817_BUCK4_ON_VSEL_REG 0xC4
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#define RK817_BUCK4_SLP_VSEL_REG 0xC5
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#define RK817_LDO_ON_VSEL_REG(idx) (0xcc + (idx) * 2)
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#define RK817_BOOST_OTG_CFG (0xde)
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#define RK817_ID_MSB 0xed
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#define RK817_ID_LSB 0xee
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#define RK817_SYS_STS 0xf0
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#define RK817_SYS_CFG(i) (0xf1 + (i))
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#define RK817_ON_SOURCE_REG 0xf5
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#define RK817_OFF_SOURCE_REG 0xf6
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||||
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||||
/* INTERRUPT REGISTER */
|
||||
#define RK817_INT_STS_REG0 0xf8
|
||||
#define RK817_INT_STS_MSK_REG0 0xf9
|
||||
#define RK817_INT_STS_REG1 0xfa
|
||||
#define RK817_INT_STS_MSK_REG1 0xfb
|
||||
#define RK817_INT_STS_REG2 0xfc
|
||||
#define RK817_INT_STS_MSK_REG2 0xfd
|
||||
#define RK817_GPIO_INT_CFG 0xfe
|
||||
|
||||
/* IRQ Definitions */
|
||||
#define RK817_IRQ_PWRON_FALL 0
|
||||
#define RK817_IRQ_PWRON_RISE 1
|
||||
#define RK817_IRQ_PWRON 2
|
||||
#define RK817_IRQ_PWMON_LP 3
|
||||
#define RK817_IRQ_HOTDIE 4
|
||||
#define RK817_IRQ_RTC_ALARM 5
|
||||
#define RK817_IRQ_RTC_PERIOD 6
|
||||
#define RK817_IRQ_VB_LO 7
|
||||
#define RK817_IRQ_PLUG_IN 8
|
||||
#define RK817_IRQ_PLUG_OUT 9
|
||||
#define RK817_IRQ_CHRG_TERM 10
|
||||
#define RK817_IRQ_CHRG_TIME 11
|
||||
#define RK817_IRQ_CHRG_TS 12
|
||||
#define RK817_IRQ_USB_OV 13
|
||||
#define RK817_IRQ_CHRG_IN_CLMP 14
|
||||
#define RK817_IRQ_BAT_DIS_ILIM 15
|
||||
#define RK817_IRQ_GATE_GPIO 16
|
||||
#define RK817_IRQ_TS_GPIO 17
|
||||
#define RK817_IRQ_CODEC_PD 18
|
||||
#define RK817_IRQ_CODEC_PO 19
|
||||
#define RK817_IRQ_CLASSD_MUTE_DONE 20
|
||||
#define RK817_IRQ_CLASSD_OCP 21
|
||||
#define RK817_IRQ_BAT_OVP 22
|
||||
#define RK817_IRQ_CHRG_BAT_HI 23
|
||||
#define RK817_IRQ_END (RK817_IRQ_CHRG_BAT_HI + 1)
|
||||
|
||||
/*
|
||||
* rtc_ctrl 0xd
|
||||
* same as 808, except bit4
|
||||
*/
|
||||
#define RK817_RTC_CTRL_RSV4 BIT(4)
|
||||
|
||||
/* power config 0xb9 */
|
||||
#define RK817_BUCK3_FB_RES_MSK BIT(6)
|
||||
#define RK817_BUCK3_FB_RES_INTER BIT(6)
|
||||
#define RK817_BUCK3_FB_RES_EXT 0
|
||||
|
||||
/* buck config 0xba */
|
||||
#define RK817_RAMP_RATE_OFFSET 6
|
||||
#define RK817_RAMP_RATE_MASK (0x3 << RK817_RAMP_RATE_OFFSET)
|
||||
#define RK817_RAMP_RATE_3MV_PER_US (0x0 << RK817_RAMP_RATE_OFFSET)
|
||||
#define RK817_RAMP_RATE_6_3MV_PER_US (0x1 << RK817_RAMP_RATE_OFFSET)
|
||||
#define RK817_RAMP_RATE_12_5MV_PER_US (0x2 << RK817_RAMP_RATE_OFFSET)
|
||||
#define RK817_RAMP_RATE_25MV_PER_US (0x3 << RK817_RAMP_RATE_OFFSET)
|
||||
|
||||
/* sys_cfg1 0xf2 */
|
||||
#define RK817_HOTDIE_TEMP_MSK (0x3 << 4)
|
||||
#define RK817_HOTDIE_85 (0x0 << 4)
|
||||
#define RK817_HOTDIE_95 (0x1 << 4)
|
||||
#define RK817_HOTDIE_105 (0x2 << 4)
|
||||
#define RK817_HOTDIE_115 (0x3 << 4)
|
||||
|
||||
#define RK817_TSD_TEMP_MSK BIT(6)
|
||||
#define RK817_TSD_140 0
|
||||
#define RK817_TSD_160 BIT(6)
|
||||
|
||||
#define RK817_CLK32KOUT2_EN BIT(7)
|
||||
|
||||
/* sys_cfg3 0xf4 */
|
||||
#define RK817_SLPPIN_FUNC_MSK (0x3 << 3)
|
||||
#define SLPPIN_NULL_FUN (0x0 << 3)
|
||||
#define SLPPIN_SLP_FUN (0x1 << 3)
|
||||
#define SLPPIN_DN_FUN (0x2 << 3)
|
||||
#define SLPPIN_RST_FUN (0x3 << 3)
|
||||
|
||||
#define RK817_RST_FUNC_MSK (0x3 << 6)
|
||||
#define RK817_RST_FUNC_SFT (6)
|
||||
#define RK817_RST_FUNC_CNT (3)
|
||||
#define RK817_RST_FUNC_DEV (0) /* reset the dev */
|
||||
#define RK817_RST_FUNC_REG (0x1 << 6) /* reset the reg only */
|
||||
|
||||
#define RK817_SLPPOL_MSK BIT(5)
|
||||
#define RK817_SLPPOL_H BIT(5)
|
||||
#define RK817_SLPPOL_L (0)
|
||||
|
||||
/* gpio&int 0xfe */
|
||||
#define RK817_INT_POL_MSK BIT(1)
|
||||
#define RK817_INT_POL_H BIT(1)
|
||||
#define RK817_INT_POL_L 0
|
||||
#define RK809_BUCK5_CONFIG(i) (RK817_BOOST_OTG_CFG + (i) * 1)
|
||||
|
||||
enum {
|
||||
BUCK_ILMIN_50MA,
|
||||
@ -443,6 +613,8 @@ enum {
|
||||
enum {
|
||||
RK805_ID = 0x8050,
|
||||
RK808_ID = 0x0000,
|
||||
RK809_ID = 0x8090,
|
||||
RK817_ID = 0x8170,
|
||||
RK818_ID = 0x8181,
|
||||
};
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user