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authorElaine Zhang <zhangqing@rock-chips.com>2017-08-21 04:28:38 +0300
committerLee Jones <lee.jones@linaro.org>2017-08-21 10:54:20 +0300
commit990f05f6a5213be50ff48bf0461e2db254817b0c (patch)
tree1ce5be28491eda8267a5a774bc5ea3cfa53a8608 /drivers/mfd/rk808.c
parentc4e0d344c1f086c6675f2a22ea6ea71330fb0b57 (diff)
downloadlinux-990f05f6a5213be50ff48bf0461e2db254817b0c.tar.xz
mfd: rk808: Add RK805 support
The RK805 chip is a Power Management IC (PMIC) for multimedia and handheld devices. It contains the following components: - Regulators - RTC - Clocking Both RK808 and RK805 chips are using a similar register map, so we can reuse the RTC and Clocking functionality. Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com> Signed-off-by: Joseph Chen <chenjh@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'drivers/mfd/rk808.c')
-rw-r--r--drivers/mfd/rk808.c108
1 files changed, 108 insertions, 0 deletions
diff --git a/drivers/mfd/rk808.c b/drivers/mfd/rk808.c
index 8e60ebaeaadb..18329c8b4fe7 100644
--- a/drivers/mfd/rk808.c
+++ b/drivers/mfd/rk808.c
@@ -70,6 +70,14 @@ static const struct regmap_config rk818_regmap_config = {
.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,
@@ -86,6 +94,16 @@ static struct resource rtc_resources[] = {
}
};
+static const struct mfd_cell rk805s[] = {
+ { .name = "rk808-clkout", },
+ { .name = "rk808-regulator", },
+ {
+ .name = "rk808-rtc",
+ .num_resources = ARRAY_SIZE(rtc_resources),
+ .resources = &rtc_resources[0],
+ },
+};
+
static const struct mfd_cell rk808s[] = {
{ .name = "rk808-clkout", },
{ .name = "rk808-regulator", },
@@ -106,6 +124,20 @@ static const struct mfd_cell rk818s[] = {
},
};
+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 },
@@ -135,6 +167,41 @@ static const struct rk808_reg_data rk818_pre_init_reg[] = {
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] = {
@@ -247,6 +314,17 @@ static const struct regmap_irq rk818_irqs[] = {
},
};
+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,
@@ -272,6 +350,25 @@ static const struct regmap_irq_chip rk818_irq_chip = {
};
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;
@@ -309,6 +406,7 @@ static void rk818_device_shutdown(void)
}
static const struct of_device_id rk808_of_match[] = {
+ { .compatible = "rockchip,rk805" },
{ .compatible = "rockchip,rk808" },
{ .compatible = "rockchip,rk818" },
{ },
@@ -352,6 +450,15 @@ static int rk808_probe(struct i2c_client *client,
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;
@@ -444,6 +551,7 @@ static int rk808_remove(struct i2c_client *client)
}
static const struct i2c_device_id rk808_ids[] = {
+ { "rk805" },
{ "rk808" },
{ "rk818" },
{ },