mfd: sec: Add support for S2MPU05 PMIC

Add support for Samsung's S2MPU05 PMIC. It's the primary PMIC used by
Exynos7870 devices. It houses regulators (21 LDOs and 5 BUCKs) and a RTC
clock device.

Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250301-exynos7870-pmic-regulators-v3-2-808d0b47a564@disroot.org
Signed-off-by: Lee Jones <lee@kernel.org>

diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c
index cdfe738e1d76e63145e5888da1cecc122fbc3737..3e9b65c988a7f08bf16d3703004a3d60cfcb1c75 100644 (file)
--- a/drivers/mfd/sec-core.c
+++ b/drivers/mfd/sec-core.c
@@ -83,6 +83,11 @@ static const struct mfd_cell s2mpu02_devs[] = {
        { .name = "s2mpu02-regulator", },
 };
 
+static const struct mfd_cell s2mpu05_devs[] = {
+       { .name = "s2mpu05-regulator", },
+       { .name = "s2mps15-rtc", },
+};
+
 static const struct of_device_id sec_dt_match[] = {
        {
                .compatible = "samsung,s5m8767-pmic",
@@ -108,6 +113,9 @@ static const struct of_device_id sec_dt_match[] = {
        }, {
                .compatible = "samsung,s2mpu02-pmic",
                .data = (void *)S2MPU02,
+       }, {
+               .compatible = "samsung,s2mpu05-pmic",
+               .data = (void *)S2MPU05,
        }, {
                /* Sentinel */
        },
@@ -374,6 +382,10 @@ static int sec_pmic_probe(struct i2c_client *i2c)
                sec_devs = s2mpu02_devs;
                num_sec_devs = ARRAY_SIZE(s2mpu02_devs);
                break;
+       case S2MPU05:
+               sec_devs = s2mpu05_devs;
+               num_sec_devs = ARRAY_SIZE(s2mpu05_devs);
+               break;
        default:
                dev_err(&i2c->dev, "Unsupported device type (%lu)\n",
                        sec_pmic->device_type);

diff --git a/drivers/mfd/sec-irq.c b/drivers/mfd/sec-irq.c
index e191aeb0c07c58a3bc4850d94af39dfe085a33e5..047fc065fcf17f5bde84143d77a46749111ea5b8 100644 (file)
--- a/drivers/mfd/sec-irq.c
+++ b/drivers/mfd/sec-irq.c
@@ -14,6 +14,7 @@
 #include <linux/mfd/samsung/s2mps11.h>
 #include <linux/mfd/samsung/s2mps14.h>
 #include <linux/mfd/samsung/s2mpu02.h>
+#include <linux/mfd/samsung/s2mpu05.h>
 #include <linux/mfd/samsung/s5m8767.h>
 
 static const struct regmap_irq s2mps11_irqs[] = {
@@ -225,6 +226,26 @@ static const struct regmap_irq s2mpu02_irqs[] = {
        },
 };
 
+static const struct regmap_irq s2mpu05_irqs[] = {
+       REGMAP_IRQ_REG(S2MPU05_IRQ_PWRONF, 0, S2MPU05_IRQ_PWRONF_MASK),
+       REGMAP_IRQ_REG(S2MPU05_IRQ_PWRONR, 0, S2MPU05_IRQ_PWRONR_MASK),
+       REGMAP_IRQ_REG(S2MPU05_IRQ_JIGONBF, 0, S2MPU05_IRQ_JIGONBF_MASK),
+       REGMAP_IRQ_REG(S2MPU05_IRQ_JIGONBR, 0, S2MPU05_IRQ_JIGONBR_MASK),
+       REGMAP_IRQ_REG(S2MPU05_IRQ_ACOKF, 0, S2MPU05_IRQ_ACOKF_MASK),
+       REGMAP_IRQ_REG(S2MPU05_IRQ_ACOKR, 0, S2MPU05_IRQ_ACOKR_MASK),
+       REGMAP_IRQ_REG(S2MPU05_IRQ_PWRON1S, 0, S2MPU05_IRQ_PWRON1S_MASK),
+       REGMAP_IRQ_REG(S2MPU05_IRQ_MRB, 0, S2MPU05_IRQ_MRB_MASK),
+       REGMAP_IRQ_REG(S2MPU05_IRQ_RTC60S, 1, S2MPU05_IRQ_RTC60S_MASK),
+       REGMAP_IRQ_REG(S2MPU05_IRQ_RTCA1, 1, S2MPU05_IRQ_RTCA1_MASK),
+       REGMAP_IRQ_REG(S2MPU05_IRQ_RTCA0, 1, S2MPU05_IRQ_RTCA0_MASK),
+       REGMAP_IRQ_REG(S2MPU05_IRQ_SMPL, 1, S2MPU05_IRQ_SMPL_MASK),
+       REGMAP_IRQ_REG(S2MPU05_IRQ_RTC1S, 1, S2MPU05_IRQ_RTC1S_MASK),
+       REGMAP_IRQ_REG(S2MPU05_IRQ_WTSR, 1, S2MPU05_IRQ_WTSR_MASK),
+       REGMAP_IRQ_REG(S2MPU05_IRQ_INT120C, 2, S2MPU05_IRQ_INT120C_MASK),
+       REGMAP_IRQ_REG(S2MPU05_IRQ_INT140C, 2, S2MPU05_IRQ_INT140C_MASK),
+       REGMAP_IRQ_REG(S2MPU05_IRQ_TSD, 2, S2MPU05_IRQ_TSD_MASK),
+};
+
 static const struct regmap_irq s5m8767_irqs[] = {
        [S5M8767_IRQ_PWRR] = {
                .reg_offset = 0,
@@ -339,6 +360,16 @@ static const struct regmap_irq_chip s2mpu02_irq_chip = {
        .ack_base = S2MPU02_REG_INT1,
 };
 
+static const struct regmap_irq_chip s2mpu05_irq_chip = {
+       .name = "s2mpu05",
+       .irqs = s2mpu05_irqs,
+       .num_irqs = ARRAY_SIZE(s2mpu05_irqs),
+       .num_regs = 3,
+       .status_base = S2MPU05_REG_INT1,
+       .mask_base = S2MPU05_REG_INT1M,
+       .ack_base = S2MPU05_REG_INT1,
+};
+
 static const struct regmap_irq_chip s5m8767_irq_chip = {
        .name = "s5m8767",
        .irqs = s5m8767_irqs,
@@ -383,6 +414,9 @@ int sec_irq_init(struct sec_pmic_dev *sec_pmic)
        case S2MPU02:
                sec_irq_chip = &s2mpu02_irq_chip;
                break;
+       case S2MPU05:
+               sec_irq_chip = &s2mpu05_irq_chip;
+               break;
        default:
                dev_err(sec_pmic->dev, "Unknown device type %lu\n",
                        sec_pmic->device_type);

diff --git a/include/linux/mfd/samsung/core.h b/include/linux/mfd/samsung/core.h
index 750274d41fc06b0411dbfea6d5efa6092214100d..f35314458fd22e43fa13034439406bea17a155c9 100644 (file)
--- a/include/linux/mfd/samsung/core.h
+++ b/include/linux/mfd/samsung/core.h
@@ -44,6 +44,7 @@ enum sec_device_type {
        S2MPS14X,
        S2MPS15X,
        S2MPU02,
+       S2MPU05,
 };
 
 /**

diff --git a/include/linux/mfd/samsung/irq.h b/include/linux/mfd/samsung/irq.h
index 3fd2775eb9bbf86ac227810f49d24ae815bb3fcb..978f7af66f74842c4f8dd62c0f58a7a45aba7c34 100644 (file)
--- a/include/linux/mfd/samsung/irq.h
+++ b/include/linux/mfd/samsung/irq.h
@@ -150,6 +150,50 @@ enum s2mpu02_irq {
 /* Masks for interrupts are the same as in s2mps11 */
 #define S2MPS14_IRQ_TSD_MASK           (1 << 2)
 
+enum s2mpu05_irq {
+       S2MPU05_IRQ_PWRONF,
+       S2MPU05_IRQ_PWRONR,
+       S2MPU05_IRQ_JIGONBF,
+       S2MPU05_IRQ_JIGONBR,
+       S2MPU05_IRQ_ACOKF,
+       S2MPU05_IRQ_ACOKR,
+       S2MPU05_IRQ_PWRON1S,
+       S2MPU05_IRQ_MRB,
+
+       S2MPU05_IRQ_RTC60S,
+       S2MPU05_IRQ_RTCA1,
+       S2MPU05_IRQ_RTCA0,
+       S2MPU05_IRQ_SMPL,
+       S2MPU05_IRQ_RTC1S,
+       S2MPU05_IRQ_WTSR,
+
+       S2MPU05_IRQ_INT120C,
+       S2MPU05_IRQ_INT140C,
+       S2MPU05_IRQ_TSD,
+
+       S2MPU05_IRQ_NR,
+};
+
+#define S2MPU05_IRQ_PWRONF_MASK                BIT(0)
+#define S2MPU05_IRQ_PWRONR_MASK                BIT(1)
+#define S2MPU05_IRQ_JIGONBF_MASK       BIT(2)
+#define S2MPU05_IRQ_JIGONBR_MASK       BIT(3)
+#define S2MPU05_IRQ_ACOKF_MASK         BIT(4)
+#define S2MPU05_IRQ_ACOKR_MASK         BIT(5)
+#define S2MPU05_IRQ_PWRON1S_MASK       BIT(6)
+#define S2MPU05_IRQ_MRB_MASK           BIT(7)
+
+#define S2MPU05_IRQ_RTC60S_MASK                BIT(0)
+#define S2MPU05_IRQ_RTCA1_MASK         BIT(1)
+#define S2MPU05_IRQ_RTCA0_MASK         BIT(2)
+#define S2MPU05_IRQ_SMPL_MASK          BIT(3)
+#define S2MPU05_IRQ_RTC1S_MASK         BIT(4)
+#define S2MPU05_IRQ_WTSR_MASK          BIT(5)
+
+#define S2MPU05_IRQ_INT120C_MASK       BIT(0)
+#define S2MPU05_IRQ_INT140C_MASK       BIT(1)
+#define S2MPU05_IRQ_TSD_MASK           BIT(2)
+
 enum s5m8767_irq {
        S5M8767_IRQ_PWRR,
        S5M8767_IRQ_PWRF,

diff --git a/include/linux/mfd/samsung/s2mpu05.h b/include/linux/mfd/samsung/s2mpu05.h
new file mode 100644 (file)
index 0000000..fcdb6c8
--- /dev/null
+++ b/include/linux/mfd/samsung/s2mpu05.h
@@ -0,0 +1,183 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2015 Samsung Electronics Co., Ltd
+ * Copyright (c) 2025 Kaustabh Chakraborty <kauschluss@disroot.org>
+ */
+
+#ifndef __LINUX_MFD_S2MPU05_H
+#define __LINUX_MFD_S2MPU05_H
+
+/* S2MPU05 registers */
+enum S2MPU05_reg {
+       S2MPU05_REG_ID,
+       S2MPU05_REG_INT1,
+       S2MPU05_REG_INT2,
+       S2MPU05_REG_INT3,
+       S2MPU05_REG_INT1M,
+       S2MPU05_REG_INT2M,
+       S2MPU05_REG_INT3M,
+       S2MPU05_REG_ST1,
+       S2MPU05_REG_ST2,
+       S2MPU05_REG_PWRONSRC,
+       S2MPU05_REG_OFFSRC,
+       S2MPU05_REG_BU_CHG,
+       S2MPU05_REG_RTC_BUF,
+       S2MPU05_REG_CTRL1,
+       S2MPU05_REG_CTRL2,
+       S2MPU05_REG_ETC_TEST,
+       S2MPU05_REG_OTP_ADRL,
+       S2MPU05_REG_OTP_ADRH,
+       S2MPU05_REG_OTP_DATA,
+       S2MPU05_REG_MON1SEL,
+       S2MPU05_REG_MON2SEL,
+       S2MPU05_REG_CTRL3,
+       S2MPU05_REG_ETC_OTP,
+       S2MPU05_REG_UVLO,
+       S2MPU05_REG_TIME_CTRL1,
+       S2MPU05_REG_TIME_CTRL2,
+       S2MPU05_REG_B1CTRL1,
+       S2MPU05_REG_B1CTRL2,
+       S2MPU05_REG_B2CTRL1,
+       S2MPU05_REG_B2CTRL2,
+       S2MPU05_REG_B2CTRL3,
+       S2MPU05_REG_B2CTRL4,
+       S2MPU05_REG_B3CTRL1,
+       S2MPU05_REG_B3CTRL2,
+       S2MPU05_REG_B3CTRL3,
+       S2MPU05_REG_B4CTRL1,
+       S2MPU05_REG_B4CTRL2,
+       S2MPU05_REG_B5CTRL1,
+       S2MPU05_REG_B5CTRL2,
+       S2MPU05_REG_BUCK_RAMP,
+       S2MPU05_REG_LDO_DVS1,
+       S2MPU05_REG_LDO_DVS9,
+       S2MPU05_REG_LDO_DVS10,
+       S2MPU05_REG_L1CTRL,
+       S2MPU05_REG_L2CTRL,
+       S2MPU05_REG_L3CTRL,
+       S2MPU05_REG_L4CTRL,
+       S2MPU05_REG_L5CTRL,
+       S2MPU05_REG_L6CTRL,
+       S2MPU05_REG_L7CTRL,
+       S2MPU05_REG_L8CTRL,
+       S2MPU05_REG_L9CTRL1,
+       S2MPU05_REG_L9CTRL2,
+       S2MPU05_REG_L10CTRL,
+       S2MPU05_REG_L11CTRL1,
+       S2MPU05_REG_L11CTRL2,
+       S2MPU05_REG_L12CTRL,
+       S2MPU05_REG_L13CTRL,
+       S2MPU05_REG_L14CTRL,
+       S2MPU05_REG_L15CTRL,
+       S2MPU05_REG_L16CTRL,
+       S2MPU05_REG_L17CTRL1,
+       S2MPU05_REG_L17CTRL2,
+       S2MPU05_REG_L18CTRL1,
+       S2MPU05_REG_L18CTRL2,
+       S2MPU05_REG_L19CTRL,
+       S2MPU05_REG_L20CTRL,
+       S2MPU05_REG_L21CTRL,
+       S2MPU05_REG_L22CTRL,
+       S2MPU05_REG_L23CTRL,
+       S2MPU05_REG_L24CTRL,
+       S2MPU05_REG_L25CTRL,
+       S2MPU05_REG_L26CTRL,
+       S2MPU05_REG_L27CTRL,
+       S2MPU05_REG_L28CTRL,
+       S2MPU05_REG_L29CTRL,
+       S2MPU05_REG_L30CTRL,
+       S2MPU05_REG_L31CTRL,
+       S2MPU05_REG_L32CTRL,
+       S2MPU05_REG_L33CTRL,
+       S2MPU05_REG_L34CTRL,
+       S2MPU05_REG_L35CTRL,
+       S2MPU05_REG_LDO_DSCH1,
+       S2MPU05_REG_LDO_DSCH2,
+       S2MPU05_REG_LDO_DSCH3,
+       S2MPU05_REG_LDO_DSCH4,
+       S2MPU05_REG_LDO_DSCH5,
+       S2MPU05_REG_LDO_CTRL1,
+       S2MPU05_REG_LDO_CTRL2,
+       S2MPU05_REG_TCXO_CTRL,
+       S2MPU05_REG_SELMIF,
+};
+
+/* S2MPU05 regulator ids */
+enum S2MPU05_regulators {
+       S2MPU05_LDO1,
+       S2MPU05_LDO2,
+       S2MPU05_LDO3,
+       S2MPU05_LDO4,
+       S2MPU05_LDO5,
+       S2MPU05_LDO6,
+       S2MPU05_LDO7,
+       S2MPU05_LDO8,
+       S2MPU05_LDO9,
+       S2MPU05_LDO10,
+       S2MPU05_LDO11,
+       S2MPU05_LDO12,
+       S2MPU05_LDO13,
+       S2MPU05_LDO14,
+       S2MPU05_LDO15,
+       S2MPU05_LDO16,
+       S2MPU05_LDO17,
+       S2MPU05_LDO18,
+       S2MPU05_LDO19,
+       S2MPU05_LDO20,
+       S2MPU05_LDO21,
+       S2MPU05_LDO22,
+       S2MPU05_LDO23,
+       S2MPU05_LDO24,
+       S2MPU05_LDO25,
+       S2MPU05_LDO26,
+       S2MPU05_LDO27,
+       S2MPU05_LDO28,
+       S2MPU05_LDO29,
+       S2MPU05_LDO30,
+       S2MPU05_LDO31,
+       S2MPU05_LDO32,
+       S2MPU05_LDO33,
+       S2MPU05_LDO34,
+       S2MPU05_LDO35,
+       S2MPU05_BUCK1,
+       S2MPU05_BUCK2,
+       S2MPU05_BUCK3,
+       S2MPU05_BUCK4,
+       S2MPU05_BUCK5,
+
+       S2MPU05_REGULATOR_MAX,
+};
+
+#define S2MPU05_SW_ENABLE_MASK 0x03
+
+#define S2MPU05_ENABLE_TIME_LDO                128
+#define S2MPU05_ENABLE_TIME_BUCK1      110
+#define S2MPU05_ENABLE_TIME_BUCK2      110
+#define S2MPU05_ENABLE_TIME_BUCK3      110
+#define S2MPU05_ENABLE_TIME_BUCK4      150
+#define S2MPU05_ENABLE_TIME_BUCK5      150
+
+#define S2MPU05_LDO_MIN1       800000
+#define S2MPU05_LDO_MIN2       1800000
+#define S2MPU05_LDO_MIN3       400000
+#define S2MPU05_LDO_STEP1      12500
+#define S2MPU05_LDO_STEP2      25000
+
+#define S2MPU05_BUCK_MIN1      400000
+#define S2MPU05_BUCK_MIN2      600000
+#define S2MPU05_BUCK_STEP1     6250
+#define S2MPU05_BUCK_STEP2     12500
+
+#define S2MPU05_RAMP_DELAY     12000   /* uV/uS */
+
+#define S2MPU05_ENABLE_SHIFT   6
+#define S2MPU05_ENABLE_MASK    (0x03 << S2MPU05_ENABLE_SHIFT)
+
+#define S2MPU05_LDO_VSEL_MASK  0x3F
+#define S2MPU05_BUCK_VSEL_MASK 0xFF
+#define S2MPU05_LDO_N_VOLTAGES (S2MPU05_LDO_VSEL_MASK + 1)
+#define S2MPU05_BUCK_N_VOLTAGES (S2MPU05_BUCK_VSEL_MASK + 1)
+
+#define S2MPU05_PMIC_EN_SHIFT  6
+
+#endif /*  __LINUX_MFD_S2MPU05_H */