* [PATCH v5 4/6] mfd: tps65219: Add driver for TI TPS65219 PMIC
2022-09-13 12:14 [PATCH v5 0/6] Add support for TI TPS65219 PMIC Jerome Neanne
` (2 preceding siblings ...)
2022-09-13 12:14 ` [PATCH v5 3/6] DONOTMERGE: arm64: dts: ti: k3-am642-sk: Enable tps65219 power-button Jerome Neanne
@ 2022-09-13 12:14 ` Jerome Neanne
2022-09-14 6:46 ` Lee Jones
2022-09-13 12:14 ` [PATCH v5 5/6] Input: Add tps65219 interrupt driven powerbutton Jerome Neanne
2022-09-13 12:14 ` [PATCH v5 6/6] arm64: defconfig: Add tps65219 as modules Jerome Neanne
5 siblings, 1 reply; 11+ messages in thread
From: Jerome Neanne @ 2022-09-13 12:14 UTC (permalink / raw)
To: lgirdwood, broonie, robh+dt, nm, kristo, dmitry.torokhov,
krzysztof.kozlowski+dt, catalin.marinas, will, lee.jones, tony
Cc: afd, khilman, narmstrong, msp, j-keerthy, jneanne, linux-kernel,
devicetree, linux-arm-kernel, linux-input, linux-omap
The TPS65219 is a power management IC PMIC designed to supply a wide
range of SoCs in both portable and stationary applications. Any SoC can
control TPS65219 over a standard I2C interface.
It contains the following components:
- Regulators.
- Over Temperature warning and Shut down.
- GPIOs
- Multi Function Pins (MFP)
- power-button
This patch adds support for tps65219 PMIC. At this time only
the functionalities listed below are made available:
- Regulators probe and functionalities
- warm and cold reset support
- SW shutdown support
- Regulator warnings via IRQs
- Power-button via IRQ
Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
---
MAINTAINERS | 1 +
drivers/mfd/Kconfig | 14 ++
drivers/mfd/Makefile | 1 +
drivers/mfd/tps65219.c | 320 ++++++++++++++++++++++++++++++++
include/linux/mfd/tps65219.h | 345 +++++++++++++++++++++++++++++++++++
5 files changed, 681 insertions(+)
create mode 100644 drivers/mfd/tps65219.c
create mode 100644 include/linux/mfd/tps65219.h
diff --git a/MAINTAINERS b/MAINTAINERS
index f35b29ffd5fb..960df879c635 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14926,6 +14926,7 @@ F: drivers/mfd/menelaus.c
F: drivers/mfd/palmas.c
F: drivers/mfd/tps65217.c
F: drivers/mfd/tps65218.c
+F: drivers/mfd/tps65219.c
F: drivers/mfd/tps65910.c
F: drivers/mfd/twl-core.[ch]
F: drivers/mfd/twl4030*.c
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index abb58ab1a1a4..1a846c7dd0c2 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1576,6 +1576,20 @@ config MFD_TPS65218
This driver can also be built as a module. If so, the module
will be called tps65218.
+config MFD_TPS65219
+ tristate "TI TPS65219 Power Management IC"
+ depends on I2C && OF
+ select MFD_CORE
+ select REGMAP_I2C
+ select REGMAP_IRQ
+ help
+ If you say yes here you get support for the TPS65219 series of Power
+ Management ICs. These include voltage regulators, GPIOs and
+ push/power button that are often used in portable devices.
+
+ This driver can also be built as a module. If so, the module
+ will be called tps65219.
+
config MFD_TPS6586X
bool "TI TPS6586x Power Management chips"
depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 858cacf659d6..a8ff3d6ea3ab 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -101,6 +101,7 @@ obj-$(CONFIG_TPS6507X) += tps6507x.o
obj-$(CONFIG_MFD_TPS65086) += tps65086.o
obj-$(CONFIG_MFD_TPS65217) += tps65217.o
obj-$(CONFIG_MFD_TPS65218) += tps65218.o
+obj-$(CONFIG_MFD_TPS65219) += tps65219.o
obj-$(CONFIG_MFD_TPS65910) += tps65910.o
obj-$(CONFIG_MFD_TPS65912) += tps65912-core.o
obj-$(CONFIG_MFD_TPS65912_I2C) += tps65912-i2c.o
diff --git a/drivers/mfd/tps65219.c b/drivers/mfd/tps65219.c
new file mode 100644
index 000000000000..c1638483e069
--- /dev/null
+++ b/drivers/mfd/tps65219.c
@@ -0,0 +1,320 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Driver for TPS65219 Integrated Power Management Integrated Chips (PMIC)
+//
+// Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/
+
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/reboot.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+#include <linux/mfd/core.h>
+#include <linux/mfd/tps65219.h>
+
+static int tps65219_warm_reset(struct tps65219 *tps)
+{
+ return regmap_update_bits(tps->regmap, TPS65219_REG_MFP_CTRL,
+ TPS65219_MFP_WARM_RESET_I2C_CTRL_MASK,
+ TPS65219_MFP_WARM_RESET_I2C_CTRL_MASK);
+}
+
+static int tps65219_cold_reset(struct tps65219 *tps)
+{
+ return regmap_update_bits(tps->regmap, TPS65219_REG_MFP_CTRL,
+ TPS65219_MFP_COLD_RESET_I2C_CTRL_MASK,
+ TPS65219_MFP_COLD_RESET_I2C_CTRL_MASK);
+}
+
+static int tps65219_soft_shutdown(struct tps65219 *tps)
+{
+ return regmap_update_bits(tps->regmap, TPS65219_REG_MFP_CTRL,
+ TPS65219_MFP_I2C_OFF_REQ_MASK,
+ TPS65219_MFP_I2C_OFF_REQ_MASK);
+}
+
+static int tps65219_restart(struct notifier_block *this,
+ unsigned long reboot_mode, void *cmd)
+{
+ struct tps65219 *tps;
+
+ tps = container_of(this, struct tps65219, nb);
+ if (!tps) {
+ pr_err("tps65219: Restarting failed because the pointer to tps65219 is invalid\n");
+ return -ENODEV;
+ }
+ if (reboot_mode == REBOOT_WARM)
+ tps65219_warm_reset(tps);
+ else
+ tps65219_cold_reset(tps);
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block pmic_rst_restart_nb = {
+ .notifier_call = tps65219_restart,
+ .priority = 200,
+};
+
+static const struct resource tps65219_pwrbutton_resources[] = {
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_PB_FALLING_EDGE_DETECT, "falling"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_PB_RISING_EDGE_DETECT, "rising"),
+};
+
+static const struct resource tps65219_regulator_resources[] = {
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO3_SCG, "LDO3_SCG"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO3_OC, "LDO3_OC"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO3_UV, "LDO3_UV"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO4_SCG, "LDO4_SCG"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO4_OC, "LDO4_OC"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO4_UV, "LDO4_UV"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO1_SCG, "LDO1_SCG"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO1_OC, "LDO1_OC"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO1_UV, "LDO1_UV"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO2_SCG, "LDO2_SCG"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO2_OC, "LDO2_OC"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO2_UV, "LDO2_UV"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK3_SCG, "BUCK3_SCG"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK3_OC, "BUCK3_OC"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK3_NEG_OC, "BUCK3_NEG_OC"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK3_UV, "BUCK3_UV"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK1_SCG, "BUCK1_SCG"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK1_OC, "BUCK1_OC"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK1_NEG_OC, "BUCK1_NEG_OC"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK1_UV, "BUCK1_UV"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK2_SCG, "BUCK2_SCG"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK2_OC, "BUCK2_OC"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK2_NEG_OC, "BUCK2_NEG_OC"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK2_UV, "BUCK2_UV"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK1_RV, "BUCK1_RV"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK2_RV, "BUCK2_RV"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK3_RV, "BUCK3_RV"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO1_RV, "LDO1_RV"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO2_RV, "LDO2_RV"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO3_RV, "LDO3_RV"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO4_RV, "LDO4_RV"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK1_RV_SD, "BUCK1_RV_SD"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK2_RV_SD, "BUCK2_RV_SD"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_BUCK3_RV_SD, "BUCK3_RV_SD"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO1_RV_SD, "LDO1_RV_SD"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO2_RV_SD, "LDO2_RV_SD"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO3_RV_SD, "LDO3_RV_SD"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_LDO4_RV_SD, "LDO4_RV_SD"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_TIMEOUT, "TIMEOUT"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_SENSOR_3_WARM, "SENSOR_3_WARM"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_SENSOR_2_WARM, "SENSOR_2_WARM"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_SENSOR_1_WARM, "SENSOR_1_WARM"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_SENSOR_0_WARM, "SENSOR_0_WARM"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_SENSOR_3_HOT, "SENSOR_3_HOT"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_SENSOR_2_HOT, "SENSOR_2_HOT"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_SENSOR_1_HOT, "SENSOR_1_HOT"),
+ DEFINE_RES_IRQ_NAMED(TPS65219_INT_SENSOR_0_HOT, "SENSOR_0_HOT"),
+};
+
+static const struct mfd_cell tps65219_cells[] = {
+ {
+ .name = "tps65219-regulator",
+ .resources = tps65219_regulator_resources,
+ .num_resources = ARRAY_SIZE(tps65219_regulator_resources),
+ }, {
+ .name = "tps65219-gpios",
+ },
+};
+
+static const struct mfd_cell tps65219_pwrbutton_cell = {
+ .name = "tps65219-pwrbutton",
+ .resources = tps65219_pwrbutton_resources,
+ .num_resources = ARRAY_SIZE(tps65219_pwrbutton_resources),
+};
+
+static const struct regmap_config tps65219_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .max_register = TPS65219_REG_FACTORY_CONFIG_2,
+};
+
+/*
+ * Mapping of main IRQ register bits to sub-IRQ register offsets so that we can
+ * access corect sub-IRQ registers based on bits that are set in main IRQ
+ * register.
+ */
+/* Timeout Residual Voltage Shutdown */
+static unsigned int bit0_offsets[] = { TPS65219_REG_INT_TO_RV_POS };
+static unsigned int bit1_offsets[] = { TPS65219_REG_INT_RV_POS }; /* Residual Voltage */
+static unsigned int bit2_offsets[] = { TPS65219_REG_INT_SYS_POS }; /* System */
+static unsigned int bit3_offsets[] = { TPS65219_REG_INT_BUCK_1_2_POS }; /* Buck 1-2 */
+static unsigned int bit4_offsets[] = { TPS65219_REG_INT_BUCK_3_POS }; /* Buck 3 */
+static unsigned int bit5_offsets[] = { TPS65219_REG_INT_LDO_1_2_POS }; /* LDO 1-2 */
+static unsigned int bit6_offsets[] = { TPS65219_REG_INT_LDO_3_4_POS }; /* LDO 3-4 */
+static unsigned int bit7_offsets[] = { TPS65219_REG_INT_PB_POS }; /* Power Button */
+
+static struct regmap_irq_sub_irq_map tps65219_sub_irq_offsets[] = {
+ REGMAP_IRQ_MAIN_REG_OFFSET(bit0_offsets),
+ REGMAP_IRQ_MAIN_REG_OFFSET(bit1_offsets),
+ REGMAP_IRQ_MAIN_REG_OFFSET(bit2_offsets),
+ REGMAP_IRQ_MAIN_REG_OFFSET(bit3_offsets),
+ REGMAP_IRQ_MAIN_REG_OFFSET(bit4_offsets),
+ REGMAP_IRQ_MAIN_REG_OFFSET(bit5_offsets),
+ REGMAP_IRQ_MAIN_REG_OFFSET(bit6_offsets),
+ REGMAP_IRQ_MAIN_REG_OFFSET(bit7_offsets),
+};
+
+#define TPS65219_REGMAP_IRQ_REG(int_name, register_position) \
+ REGMAP_IRQ_REG(int_name, register_position, int_name##_MASK)
+
+static struct regmap_irq tps65219_irqs[] = {
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO3_SCG, TPS65219_REG_INT_LDO_3_4_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO3_OC, TPS65219_REG_INT_LDO_3_4_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO3_UV, TPS65219_REG_INT_LDO_3_4_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO4_SCG, TPS65219_REG_INT_LDO_3_4_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO4_OC, TPS65219_REG_INT_LDO_3_4_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO4_UV, TPS65219_REG_INT_LDO_3_4_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO1_SCG, TPS65219_REG_INT_LDO_1_2_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO1_OC, TPS65219_REG_INT_LDO_1_2_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO1_UV, TPS65219_REG_INT_LDO_1_2_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO2_SCG, TPS65219_REG_INT_LDO_1_2_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO2_OC, TPS65219_REG_INT_LDO_1_2_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO2_UV, TPS65219_REG_INT_LDO_1_2_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK3_SCG, TPS65219_REG_INT_BUCK_3_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK3_OC, TPS65219_REG_INT_BUCK_3_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK3_NEG_OC, TPS65219_REG_INT_BUCK_3_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK3_UV, TPS65219_REG_INT_BUCK_3_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK2_SCG, TPS65219_REG_INT_BUCK_1_2_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK2_OC, TPS65219_REG_INT_BUCK_1_2_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK2_NEG_OC, TPS65219_REG_INT_BUCK_1_2_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK2_UV, TPS65219_REG_INT_BUCK_1_2_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK1_SCG, TPS65219_REG_INT_BUCK_1_2_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK1_OC, TPS65219_REG_INT_BUCK_1_2_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK1_NEG_OC, TPS65219_REG_INT_BUCK_1_2_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK1_UV, TPS65219_REG_INT_BUCK_1_2_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_SENSOR_3_WARM, TPS65219_REG_INT_SYS_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_SENSOR_2_WARM, TPS65219_REG_INT_SYS_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_SENSOR_1_WARM, TPS65219_REG_INT_SYS_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_SENSOR_0_WARM, TPS65219_REG_INT_SYS_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_SENSOR_3_HOT, TPS65219_REG_INT_SYS_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_SENSOR_2_HOT, TPS65219_REG_INT_SYS_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_SENSOR_1_HOT, TPS65219_REG_INT_SYS_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_SENSOR_0_HOT, TPS65219_REG_INT_SYS_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK1_RV, TPS65219_REG_INT_RV_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK2_RV, TPS65219_REG_INT_RV_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK3_RV, TPS65219_REG_INT_RV_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO1_RV, TPS65219_REG_INT_RV_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO2_RV, TPS65219_REG_INT_RV_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO3_RV, TPS65219_REG_INT_RV_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO4_RV, TPS65219_REG_INT_RV_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK1_RV_SD, TPS65219_REG_INT_TO_RV_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK2_RV_SD, TPS65219_REG_INT_TO_RV_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_BUCK3_RV_SD, TPS65219_REG_INT_TO_RV_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO1_RV_SD, TPS65219_REG_INT_TO_RV_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO2_RV_SD, TPS65219_REG_INT_TO_RV_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO3_RV_SD, TPS65219_REG_INT_TO_RV_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_LDO4_RV_SD, TPS65219_REG_INT_TO_RV_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_TIMEOUT, TPS65219_REG_INT_TO_RV_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_PB_FALLING_EDGE_DETECT, TPS65219_REG_INT_PB_POS),
+ TPS65219_REGMAP_IRQ_REG(TPS65219_INT_PB_RISING_EDGE_DETECT, TPS65219_REG_INT_PB_POS),
+};
+
+static struct regmap_irq_chip tps65219_irq_chip = {
+ .name = "tps65219_irq",
+ .main_status = TPS65219_REG_INT_SOURCE,
+ .num_main_regs = 1,
+ .num_main_status_bits = 8,
+ .irqs = tps65219_irqs,
+ .num_irqs = ARRAY_SIZE(tps65219_irqs),
+ .status_base = TPS65219_REG_INT_LDO_3_4,
+ .ack_base = TPS65219_REG_INT_LDO_3_4,
+ .clear_ack = 1,
+ .num_regs = 8,
+ .sub_reg_offsets = tps65219_sub_irq_offsets,
+};
+
+static int tps65219_probe(struct i2c_client *client)
+{
+ struct tps65219 *tps;
+ unsigned int chipid;
+ bool pwr_button;
+ int ret;
+
+ tps = devm_kzalloc(&client->dev, sizeof(*tps), GFP_KERNEL);
+ if (!tps)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, tps);
+
+ tps->dev = &client->dev;
+
+ tps->regmap = devm_regmap_init_i2c(client, &tps65219_regmap_config);
+ if (IS_ERR(tps->regmap)) {
+ ret = PTR_ERR(tps->regmap);
+ dev_err(tps->dev, "Failed to allocate register map: %d\n", ret);
+ return ret;
+ }
+
+ ret = devm_regmap_add_irq_chip(&client->dev, tps->regmap, client->irq,
+ IRQF_ONESHOT, 0, &tps65219_irq_chip,
+ &tps->irq_data);
+ if (ret)
+ return ret;
+
+ ret = regmap_read(tps->regmap, TPS65219_REG_TI_DEV_ID, &chipid);
+ if (ret) {
+ dev_err(tps->dev, "Failed to read device ID: %d\n", ret);
+ return ret;
+ }
+
+ ret = devm_mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO,
+ tps65219_cells, ARRAY_SIZE(tps65219_cells),
+ NULL, 0, regmap_irq_get_domain(tps->irq_data));
+ if (ret) {
+ dev_err(tps->dev, "Failed to add child devices: %d\n", ret);
+ return ret;
+ }
+
+ pwr_button = of_property_read_bool(tps->dev->of_node, "ti,power-button");
+ if (pwr_button) {
+ ret = devm_mfd_add_devices(tps->dev, PLATFORM_DEVID_AUTO,
+ &tps65219_pwrbutton_cell, 1, NULL, 0,
+ regmap_irq_get_domain(tps->irq_data));
+ if (ret) {
+ dev_err(tps->dev, "Failed to add power-button: %d\n", ret);
+ return ret;
+ }
+ }
+
+ tps->nb = pmic_rst_restart_nb;
+ ret = register_restart_handler(&tps->nb);
+ if (ret) {
+ dev_err(tps->dev, "cannot register restart handler, %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static const struct of_device_id of_tps65219_match_table[] = {
+ { .compatible = "ti,tps65219", },
+ {}
+};
+MODULE_DEVICE_TABLE(of, of_tps65219_match_table);
+
+static struct i2c_driver tps65219_driver = {
+ .driver = {
+ .name = "tps65219",
+ .of_match_table = of_tps65219_match_table,
+ },
+ .probe_new = tps65219_probe,
+};
+module_i2c_driver(tps65219_driver);
+
+MODULE_AUTHOR("Jerome Neanne <jneanne@baylibre.com>");
+MODULE_DESCRIPTION("TPS65219 power management IC driver");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/mfd/tps65219.h b/include/linux/mfd/tps65219.h
new file mode 100644
index 000000000000..2c1cf92e92ac
--- /dev/null
+++ b/include/linux/mfd/tps65219.h
@@ -0,0 +1,345 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Functions to access TPS65219 power management IC.
+ *
+ * Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/
+ */
+
+#ifndef MFD_TPS65219_H
+#define MFD_TPS65219_H
+
+#include <linux/bitops.h>
+#include <linux/notifier.h>
+#include <linux/regulator/driver.h>
+
+struct regmap;
+struct regmap_irq_chip_data;
+
+#define TPS65219_1V35 1350000
+#define TPS65219_1V8 1800000
+
+/* TPS chip id list */
+#define TPS65219 0xF0
+
+/* I2C ID for TPS65219 part */
+#define TPS65219_I2C_ID 0x24
+
+/* All register addresses */
+#define TPS65219_REG_TI_DEV_ID 0x00
+#define TPS65219_REG_NVM_ID 0x01
+#define TPS65219_REG_ENABLE_CTRL 0x02
+#define TPS65219_REG_BUCKS_CONFIG 0x03
+#define TPS65219_REG_LDO4_VOUT 0x04
+#define TPS65219_REG_LDO3_VOUT 0x05
+#define TPS65219_REG_LDO2_VOUT 0x06
+#define TPS65219_REG_LDO1_VOUT 0x07
+#define TPS65219_REG_BUCK3_VOUT 0x8
+#define TPS65219_REG_BUCK2_VOUT 0x9
+#define TPS65219_REG_BUCK1_VOUT 0xA
+#define TPS65219_REG_LDO4_SEQUENCE_SLOT 0xB
+#define TPS65219_REG_LDO3_SEQUENCE_SLOT 0xC
+#define TPS65219_REG_LDO2_SEQUENCE_SLOT 0xD
+#define TPS65219_REG_LDO1_SEQUENCE_SLOT 0xE
+#define TPS65219_REG_BUCK3_SEQUENCE_SLOT 0xF
+#define TPS65219_REG_BUCK2_SEQUENCE_SLOT 0x10
+#define TPS65219_REG_BUCK1_SEQUENCE_SLOT 0x11
+#define TPS65219_REG_nRST_SEQUENCE_SLOT 0x12
+#define TPS65219_REG_GPIO_SEQUENCE_SLOT 0x13
+#define TPS65219_REG_GPO2_SEQUENCE_SLOT 0x14
+#define TPS65219_REG_GPO1_SEQUENCE_SLOT 0x15
+#define TPS65219_REG_POWER_UP_SLOT_DURATION_1 0x16
+#define TPS65219_REG_POWER_UP_SLOT_DURATION_2 0x17
+#define TPS65219_REG_POWER_UP_SLOT_DURATION_3 0x18
+#define TPS65219_REG_POWER_UP_SLOT_DURATION_4 0x19
+#define TPS65219_REG_POWER_DOWN_SLOT_DURATION_1 0x1A
+#define TPS65219_REG_POWER_DOWN_SLOT_DURATION_2 0x1B
+#define TPS65219_REG_POWER_DOWN_SLOT_DURATION_3 0x1C
+#define TPS65219_REG_POWER_DOWN_SLOT_DURATION_4 0x1D
+#define TPS65219_REG_GENERAL_CONFIG 0x1E
+#define TPS65219_REG_MFP_1_CONFIG 0x1F
+#define TPS65219_REG_MFP_2_CONFIG 0x20
+#define TPS65219_REG_STBY_1_CONFIG 0x21
+#define TPS65219_REG_STBY_2_CONFIG 0x22
+#define TPS65219_REG_OC_DEGL_CONFIG 0x23
+/* 'sub irq' MASK registers */
+#define TPS65219_REG_INT_MASK_UV 0x24
+#define TPS65219_REG_MASK_CONFIG 0x25
+
+#define TPS65219_REG_I2C_ADDRESS_REG 0x26
+#define TPS65219_REG_USER_GENERAL_NVM_STORAGE 0x27
+#define TPS65219_REG_MANUFACTURING_VER 0x28
+#define TPS65219_REG_MFP_CTRL 0x29
+#define TPS65219_REG_DISCHARGE_CONFIG 0x2A
+/* main irq registers */
+#define TPS65219_REG_INT_SOURCE 0x2B
+/* 'sub irq' registers */
+#define TPS65219_REG_INT_LDO_3_4 0x2C
+#define TPS65219_REG_INT_LDO_1_2 0x2D
+#define TPS65219_REG_INT_BUCK_3 0x2E
+#define TPS65219_REG_INT_BUCK_1_2 0x2F
+#define TPS65219_REG_INT_SYSTEM 0x30
+#define TPS65219_REG_INT_RV 0x31
+#define TPS65219_REG_INT_TIMEOUT_RV_SD 0x32
+#define TPS65219_REG_INT_PB 0x33
+
+#define TPS65219_REG_INT_LDO_3_4_POS 0
+#define TPS65219_REG_INT_LDO_1_2_POS 1
+#define TPS65219_REG_INT_BUCK_3_POS 2
+#define TPS65219_REG_INT_BUCK_1_2_POS 3
+#define TPS65219_REG_INT_SYS_POS 4
+#define TPS65219_REG_INT_RV_POS 5
+#define TPS65219_REG_INT_TO_RV_POS 6
+#define TPS65219_REG_INT_PB_POS 7
+
+#define TPS65219_REG_USER_NVM_CMD 0x34
+#define TPS65219_REG_POWER_UP_STATUS 0x35
+#define TPS65219_REG_SPARE_2 0x36
+#define TPS65219_REG_SPARE_3 0x37
+#define TPS65219_REG_FACTORY_CONFIG_2 0x41
+
+/* Register field definitions */
+#define TPS65219_DEVID_REV_MASK GENMASK(7, 0)
+#define TPS65219_BUCKS_LDOS_VOUT_VSET_MASK GENMASK(5, 0)
+#define TPS65219_BUCKS_UV_THR_SEL_MASK BIT(6)
+#define TPS65219_BUCKS_BW_SEL_MASK BIT(7)
+#define LDO_BYP_SHIFT 6
+#define TPS65219_LDOS_BYP_CONFIG_MASK BIT(LDO_BYP_SHIFT)
+#define TPS65219_LDOS_LSW_CONFIG_MASK BIT(7)
+/* Regulators enable control */
+#define TPS65219_ENABLE_BUCK1_EN_MASK BIT(0)
+#define TPS65219_ENABLE_BUCK2_EN_MASK BIT(1)
+#define TPS65219_ENABLE_BUCK3_EN_MASK BIT(2)
+#define TPS65219_ENABLE_LDO1_EN_MASK BIT(3)
+#define TPS65219_ENABLE_LDO2_EN_MASK BIT(4)
+#define TPS65219_ENABLE_LDO3_EN_MASK BIT(5)
+#define TPS65219_ENABLE_LDO4_EN_MASK BIT(6)
+/* power ON-OFF sequence slot */
+#define TPS65219_BUCKS_LDOS_SEQUENCE_OFF_SLOT_MASK GENMASK(3, 0)
+#define TPS65219_BUCKS_LDOS_SEQUENCE_ON_SLOT_MASK GENMASK(7, 4)
+/* TODO: Not needed, same mapping as TPS65219_ENABLE_REGNAME_EN, factorize */
+#define TPS65219_STBY1_BUCK1_STBY_EN_MASK BIT(0)
+#define TPS65219_STBY1_BUCK2_STBY_EN_MASK BIT(1)
+#define TPS65219_STBY1_BUCK3_STBY_EN_MASK BIT(2)
+#define TPS65219_STBY1_LDO1_STBY_EN_MASK BIT(3)
+#define TPS65219_STBY1_LDO2_STBY_EN_MASK BIT(4)
+#define TPS65219_STBY1_LDO3_STBY_EN_MASK BIT(5)
+#define TPS65219_STBY1_LDO4_STBY_EN_MASK BIT(6)
+/* STBY_2 config */
+#define TPS65219_STBY2_GPO1_STBY_EN_MASK BIT(0)
+#define TPS65219_STBY2_GPO2_STBY_EN_MASK BIT(1)
+#define TPS65219_STBY2_GPIO_STBY_EN_MASK BIT(2)
+/* MFP Control */
+#define TPS65219_MFP_I2C_OFF_REQ_MASK BIT(0)
+#define TPS65219_MFP_STBY_I2C_CTRL_MASK BIT(1)
+#define TPS65219_MFP_COLD_RESET_I2C_CTRL_MASK BIT(2)
+#define TPS65219_MFP_WARM_RESET_I2C_CTRL_MASK BIT(3)
+#define TPS65219_MFP_GPIO_STATUS_MASK BIT(4)
+/* MFP_1 Config */
+#define TPS65219_MFP_1_VSEL_DDR_SEL_MASK BIT(0)
+#define TPS65219_MFP_1_VSEL_SD_POL_MASK BIT(1)
+#define TPS65219_MFP_1_VSEL_RAIL_MASK BIT(2)
+/* MFP_2 Config */
+#define TPS65219_MFP_2_MODE_STBY_MASK GENMASK(1, 0)
+#define TPS65219_MFP_2_MODE_RESET_MASK BIT(2)
+#define TPS65219_MFP_2_EN_PB_VSENSE_DEGL_MASK BIT(3)
+#define TPS65219_MFP_2_EN_PB_VSENSE_MASK GENMASK(5, 4)
+#define TPS65219_MFP_2_WARM_COLD_RESET_MASK BIT(6)
+#define TPS65219_MFP_2_PU_ON_FSD_MASK BIT(7)
+#define TPS65219_MFP_2_EN 0
+#define TPS65219_MFP_2_PB BIT(4)
+#define TPS65219_MFP_2_VSENSE BIT(5)
+/* MASK_UV Config */
+#define TPS65219_REG_MASK_UV_LDO1_UV_MASK BIT(0)
+#define TPS65219_REG_MASK_UV_LDO2_UV_MASK BIT(1)
+#define TPS65219_REG_MASK_UV_LDO3_UV_MASK BIT(2)
+#define TPS65219_REG_MASK_UV_LDO4_UV_MASK BIT(3)
+#define TPS65219_REG_MASK_UV_BUCK1_UV_MASK BIT(4)
+#define TPS65219_REG_MASK_UV_BUCK2_UV_MASK BIT(5)
+#define TPS65219_REG_MASK_UV_BUCK3_UV_MASK BIT(6)
+#define TPS65219_REG_MASK_UV_RETRY_MASK BIT(7)
+/* MASK Config */
+// SENSOR_N_WARM_MASK already defined in Thermal
+#define TPS65219_REG_MASK_INT_FOR_RV_MASK BIT(4)
+#define TPS65219_REG_MASK_EFFECT_MASK GENMASK(2, 1)
+#define TPS65219_REG_MASK_INT_FOR_PB_MASK BIT(7)
+/* UnderVoltage - Short to GND - OverCurrent*/
+/* LDO3-4 */
+#define TPS65219_INT_LDO3_SCG_MASK BIT(0)
+#define TPS65219_INT_LDO3_OC_MASK BIT(1)
+#define TPS65219_INT_LDO3_UV_MASK BIT(2)
+#define TPS65219_INT_LDO4_SCG_MASK BIT(3)
+#define TPS65219_INT_LDO4_OC_MASK BIT(4)
+#define TPS65219_INT_LDO4_UV_MASK BIT(5)
+/* LDO1-2 */
+#define TPS65219_INT_LDO1_SCG_MASK BIT(0)
+#define TPS65219_INT_LDO1_OC_MASK BIT(1)
+#define TPS65219_INT_LDO1_UV_MASK BIT(2)
+#define TPS65219_INT_LDO2_SCG_MASK BIT(3)
+#define TPS65219_INT_LDO2_OC_MASK BIT(4)
+#define TPS65219_INT_LDO2_UV_MASK BIT(5)
+/* BUCK3 */
+#define TPS65219_INT_BUCK3_SCG_MASK BIT(0)
+#define TPS65219_INT_BUCK3_OC_MASK BIT(1)
+#define TPS65219_INT_BUCK3_NEG_OC_MASK BIT(2)
+#define TPS65219_INT_BUCK3_UV_MASK BIT(3)
+/* BUCK1-2 */
+#define TPS65219_INT_BUCK1_SCG_MASK BIT(0)
+#define TPS65219_INT_BUCK1_OC_MASK BIT(1)
+#define TPS65219_INT_BUCK1_NEG_OC_MASK BIT(2)
+#define TPS65219_INT_BUCK1_UV_MASK BIT(3)
+#define TPS65219_INT_BUCK2_SCG_MASK BIT(4)
+#define TPS65219_INT_BUCK2_OC_MASK BIT(5)
+#define TPS65219_INT_BUCK2_NEG_OC_MASK BIT(6)
+#define TPS65219_INT_BUCK2_UV_MASK BIT(7)
+/* Thermal Sensor */
+#define TPS65219_INT_SENSOR_3_WARM_MASK BIT(0)
+#define TPS65219_INT_SENSOR_2_WARM_MASK BIT(1)
+#define TPS65219_INT_SENSOR_1_WARM_MASK BIT(2)
+#define TPS65219_INT_SENSOR_0_WARM_MASK BIT(3)
+#define TPS65219_INT_SENSOR_3_HOT_MASK BIT(4)
+#define TPS65219_INT_SENSOR_2_HOT_MASK BIT(5)
+#define TPS65219_INT_SENSOR_1_HOT_MASK BIT(6)
+#define TPS65219_INT_SENSOR_0_HOT_MASK BIT(7)
+/* Residual Voltage */
+#define TPS65219_INT_BUCK1_RV_MASK BIT(0)
+#define TPS65219_INT_BUCK2_RV_MASK BIT(1)
+#define TPS65219_INT_BUCK3_RV_MASK BIT(2)
+#define TPS65219_INT_LDO1_RV_MASK BIT(3)
+#define TPS65219_INT_LDO2_RV_MASK BIT(4)
+#define TPS65219_INT_LDO3_RV_MASK BIT(5)
+#define TPS65219_INT_LDO4_RV_MASK BIT(6)
+/* Residual Voltage ShutDown */
+#define TPS65219_INT_BUCK1_RV_SD_MASK BIT(0)
+#define TPS65219_INT_BUCK2_RV_SD_MASK BIT(1)
+#define TPS65219_INT_BUCK3_RV_SD_MASK BIT(2)
+#define TPS65219_INT_LDO1_RV_SD_MASK BIT(3)
+#define TPS65219_INT_LDO2_RV_SD_MASK BIT(4)
+#define TPS65219_INT_LDO3_RV_SD_MASK BIT(5)
+#define TPS65219_INT_LDO4_RV_SD_MASK BIT(6)
+#define TPS65219_INT_TIMEOUT_MASK BIT(7)
+/* Power Button */
+#define TPS65219_INT_PB_FALLING_EDGE_DETECT_MASK BIT(0)
+#define TPS65219_INT_PB_RISING_EDGE_DETECT_MASK BIT(1)
+#define TPS65219_INT_PB_REAL_TIME_STATUS_MASK BIT(2)
+
+#define TPS65219_PB_POS 7
+#define TPS65219_TO_RV_POS 6
+#define TPS65219_RV_POS 5
+#define TPS65219_SYS_POS 4
+#define TPS65219_BUCK_1_2_POS 3
+#define TPS65219_BUCK_3_POS 2
+#define TPS65219_LDO_1_2_POS 1
+#define TPS65219_LDO_3_4_POS 0
+
+/* IRQs */
+enum {
+ /* LDO3-4 register IRQs */
+ TPS65219_INT_LDO3_SCG,
+ TPS65219_INT_LDO3_OC,
+ TPS65219_INT_LDO3_UV,
+ TPS65219_INT_LDO4_SCG,
+ TPS65219_INT_LDO4_OC,
+ TPS65219_INT_LDO4_UV,
+ /* LDO1-2 */
+ TPS65219_INT_LDO1_SCG,
+ TPS65219_INT_LDO1_OC,
+ TPS65219_INT_LDO1_UV,
+ TPS65219_INT_LDO2_SCG,
+ TPS65219_INT_LDO2_OC,
+ TPS65219_INT_LDO2_UV,
+ /* BUCK3 */
+ TPS65219_INT_BUCK3_SCG,
+ TPS65219_INT_BUCK3_OC,
+ TPS65219_INT_BUCK3_NEG_OC,
+ TPS65219_INT_BUCK3_UV,
+ /* BUCK1-2 */
+ TPS65219_INT_BUCK1_SCG,
+ TPS65219_INT_BUCK1_OC,
+ TPS65219_INT_BUCK1_NEG_OC,
+ TPS65219_INT_BUCK1_UV,
+ TPS65219_INT_BUCK2_SCG,
+ TPS65219_INT_BUCK2_OC,
+ TPS65219_INT_BUCK2_NEG_OC,
+ TPS65219_INT_BUCK2_UV,
+ /* Thermal Sensor */
+ TPS65219_INT_SENSOR_3_WARM,
+ TPS65219_INT_SENSOR_2_WARM,
+ TPS65219_INT_SENSOR_1_WARM,
+ TPS65219_INT_SENSOR_0_WARM,
+ TPS65219_INT_SENSOR_3_HOT,
+ TPS65219_INT_SENSOR_2_HOT,
+ TPS65219_INT_SENSOR_1_HOT,
+ TPS65219_INT_SENSOR_0_HOT,
+ /* Residual Voltage */
+ TPS65219_INT_BUCK1_RV,
+ TPS65219_INT_BUCK2_RV,
+ TPS65219_INT_BUCK3_RV,
+ TPS65219_INT_LDO1_RV,
+ TPS65219_INT_LDO2_RV,
+ TPS65219_INT_LDO3_RV,
+ TPS65219_INT_LDO4_RV,
+ /* Residual Voltage ShutDown */
+ TPS65219_INT_BUCK1_RV_SD,
+ TPS65219_INT_BUCK2_RV_SD,
+ TPS65219_INT_BUCK3_RV_SD,
+ TPS65219_INT_LDO1_RV_SD,
+ TPS65219_INT_LDO2_RV_SD,
+ TPS65219_INT_LDO3_RV_SD,
+ TPS65219_INT_LDO4_RV_SD,
+ TPS65219_INT_TIMEOUT,
+ /* Power Button */
+ TPS65219_INT_PB_FALLING_EDGE_DETECT,
+ TPS65219_INT_PB_RISING_EDGE_DETECT,
+};
+
+enum tps65219_regulator_id {
+ /* DCDC's */
+ TPS65219_BUCK_1,
+ TPS65219_BUCK_2,
+ TPS65219_BUCK_3,
+ /* LDOs */
+ TPS65219_LDO_1,
+ TPS65219_LDO_2,
+ TPS65219_LDO_3,
+ TPS65219_LDO_4,
+};
+
+/* Number of step-down converters available */
+#define TPS65219_NUM_DCDC 3
+/* Number of LDO voltage regulators available */
+#define TPS65219_NUM_LDO 4
+/* Number of total regulators available */
+#define TPS65219_NUM_REGULATOR (TPS65219_NUM_DCDC + TPS65219_NUM_LDO)
+
+/* Define the TPS65219 IRQ numbers */
+enum tps65219_irqs {
+ /* INT source registers */
+ TPS65219_TO_RV_SD_SET_IRQ,
+ TPS65219_RV_SET_IRQ,
+ TPS65219_SYS_SET_IRQ,
+ TPS65219_BUCK_1_2_SET_IRQ,
+ TPS65219_BUCK_3_SET_IRQ,
+ TPS65219_LDO_1_2_SET_IRQ,
+ TPS65219_LDO_3_4_SET_IRQ,
+ TPS65219_PB_SET_IRQ,
+};
+
+/**
+ * struct tps65219 - tps65219 sub-driver chip access routines
+ *
+ * Device data may be used to access the TPS65219 chip
+ *
+ * @dev MFD device
+ * @regmap Regmap for accessing the device registers
+ * @irq_data Regmap irq data used for the irq chip
+ * @nb notifier block for the restart handler
+ */
+struct tps65219 {
+ struct device *dev;
+ struct regmap *regmap;
+
+ struct regmap_irq_chip_data *irq_data;
+ struct notifier_block nb;
+};
+
+#endif /* MFD_TPS65219_H */
--
2.17.1
^ permalink raw reply related [flat|nested] 11+ messages in thread* [PATCH v5 5/6] Input: Add tps65219 interrupt driven powerbutton
2022-09-13 12:14 [PATCH v5 0/6] Add support for TI TPS65219 PMIC Jerome Neanne
` (3 preceding siblings ...)
2022-09-13 12:14 ` [PATCH v5 4/6] mfd: tps65219: Add driver for TI TPS65219 PMIC Jerome Neanne
@ 2022-09-13 12:14 ` Jerome Neanne
2022-09-14 12:32 ` Dmitry Torokhov
2022-09-13 12:14 ` [PATCH v5 6/6] arm64: defconfig: Add tps65219 as modules Jerome Neanne
5 siblings, 1 reply; 11+ messages in thread
From: Jerome Neanne @ 2022-09-13 12:14 UTC (permalink / raw)
To: lgirdwood, broonie, robh+dt, nm, kristo, dmitry.torokhov,
krzysztof.kozlowski+dt, catalin.marinas, will, lee.jones, tony
Cc: afd, khilman, narmstrong, msp, j-keerthy, jneanne, linux-kernel,
devicetree, linux-arm-kernel, linux-input, linux-omap
From: Markus Schneider-Pargmann <msp@baylibre.com>
TPS65219 has different interrupts compared to other TPS6521* chips.
TPS65219 defines two interrupts for the powerbutton one for push and one
for release.
This driver is very simple in that it maps the push interrupt to a key
input and the release interrupt to a key release.
Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Jerome Neanne <jneanne@baylibre.com>
---
drivers/input/misc/Kconfig | 10 ++
drivers/input/misc/Makefile | 1 +
drivers/input/misc/tps65219-pwrbutton.c | 149 ++++++++++++++++++++++++
3 files changed, 160 insertions(+)
create mode 100644 drivers/input/misc/tps65219-pwrbutton.c
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index a18ab7358d8f..18d4a321e7ff 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -468,6 +468,16 @@ config INPUT_TPS65218_PWRBUTTON
To compile this driver as a module, choose M here. The module will
be called tps65218-pwrbutton.
+config INPUT_TPS65219_PWRBUTTON
+ tristate "TPS65219 Power button driver"
+ depends on MFD_TPS65219
+ help
+ Say Y here if you want to enable power button reporting for
+ TPS65219 Power Management IC devices.
+
+ To compile this driver as a module, choose M here. The module will
+ be called tps65219-pwrbutton.
+
config INPUT_AXP20X_PEK
tristate "X-Powers AXP20X power button driver"
depends on MFD_AXP20X
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 28dfc444f0a9..fe8f47402d12 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -78,6 +78,7 @@ obj-$(CONFIG_INPUT_SOC_BUTTON_ARRAY) += soc_button_array.o
obj-$(CONFIG_INPUT_SPARCSPKR) += sparcspkr.o
obj-$(CONFIG_INPUT_STPMIC1_ONKEY) += stpmic1_onkey.o
obj-$(CONFIG_INPUT_TPS65218_PWRBUTTON) += tps65218-pwrbutton.o
+obj-$(CONFIG_INPUT_TPS65219_PWRBUTTON) += tps65219-pwrbutton.o
obj-$(CONFIG_INPUT_TWL4030_PWRBUTTON) += twl4030-pwrbutton.o
obj-$(CONFIG_INPUT_TWL4030_VIBRA) += twl4030-vibra.o
obj-$(CONFIG_INPUT_TWL6040_VIBRA) += twl6040-vibra.o
diff --git a/drivers/input/misc/tps65219-pwrbutton.c b/drivers/input/misc/tps65219-pwrbutton.c
new file mode 100644
index 000000000000..163b545d5a54
--- /dev/null
+++ b/drivers/input/misc/tps65219-pwrbutton.c
@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Driver for TPS65219 Push Button
+//
+// Copyright (C) 2022 BayLibre Incorporated - https://www.baylibre.com/
+
+#include <linux/init.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/mfd/tps65219.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+struct tps65219_pwrbutton {
+ struct device *dev;
+ struct input_dev *idev;
+ char phys[32];
+};
+
+static irqreturn_t tps65219_pb_push_irq(int irq, void *_pwr)
+{
+ struct tps65219_pwrbutton *pwr = _pwr;
+
+ input_report_key(pwr->idev, KEY_POWER, 1);
+ pm_wakeup_event(pwr->dev, 0);
+ input_sync(pwr->idev);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t tps65219_pb_release_irq(int irq, void *_pwr)
+{
+ struct tps65219_pwrbutton *pwr = _pwr;
+
+ input_report_key(pwr->idev, KEY_POWER, 0);
+ input_sync(pwr->idev);
+
+ return IRQ_HANDLED;
+}
+
+static int tps65219_pb_probe(struct platform_device *pdev)
+{
+ struct tps65219 *tps = dev_get_drvdata(pdev->dev.parent);
+ struct device *dev = &pdev->dev;
+ struct tps65219_pwrbutton *pwr;
+ struct input_dev *idev;
+ int error;
+ int push_irq;
+ int release_irq;
+
+ pwr = devm_kzalloc(dev, sizeof(*pwr), GFP_KERNEL);
+ if (!pwr)
+ return -ENOMEM;
+
+ idev = devm_input_allocate_device(dev);
+ if (!idev)
+ return -ENOMEM;
+
+ idev->name = pdev->name;
+ snprintf(pwr->phys, sizeof(pwr->phys), "%s/input0",
+ pdev->name);
+ idev->phys = pwr->phys;
+ idev->dev.parent = dev;
+ idev->id.bustype = BUS_I2C;
+
+ input_set_capability(idev, EV_KEY, KEY_POWER);
+
+ pwr->dev = dev;
+ pwr->idev = idev;
+ device_init_wakeup(dev, true);
+
+ push_irq = platform_get_irq(pdev, 0);
+ if (push_irq < 0)
+ return -EINVAL;
+
+ release_irq = platform_get_irq(pdev, 1);
+ if (release_irq < 0)
+ return -EINVAL;
+
+ error = devm_request_threaded_irq(dev, push_irq, NULL,
+ tps65219_pb_push_irq,
+ IRQF_ONESHOT,
+ dev->init_name, pwr);
+ if (error) {
+ dev_err(dev, "failed to request push IRQ #%d: %d\n", push_irq,
+ error);
+ return error;
+ }
+
+ error = devm_request_threaded_irq(dev, release_irq, NULL,
+ tps65219_pb_release_irq,
+ IRQF_ONESHOT,
+ dev->init_name, pwr);
+ if (error) {
+ dev_err(dev, "failed to request release IRQ #%d: %d\n",
+ release_irq, error);
+ return error;
+ }
+
+ error = input_register_device(idev);
+ if (error) {
+ dev_err(dev, "Can't register power button: %d\n", error);
+ return error;
+ }
+
+ /* Enable interrupts for the pushbutton */
+ regmap_clear_bits(tps->regmap, TPS65219_REG_MASK_CONFIG,
+ TPS65219_REG_MASK_INT_FOR_PB_MASK);
+
+ /* Set PB/EN/VSENSE pin to be a pushbutton */
+ regmap_update_bits(tps->regmap, TPS65219_REG_MFP_2_CONFIG,
+ TPS65219_MFP_2_EN_PB_VSENSE_MASK, TPS65219_MFP_2_PB);
+
+ return 0;
+}
+
+static int tps65219_pb_remove(struct platform_device *pdev)
+{
+ struct tps65219 *tps = dev_get_drvdata(pdev->dev.parent);
+
+ /* Disable interrupt for the pushbutton */
+ return regmap_update_bits(tps->regmap, TPS65219_REG_MASK_CONFIG,
+ TPS65219_REG_MASK_INT_FOR_PB_MASK,
+ TPS65219_REG_MASK_INT_FOR_PB_MASK);
+}
+
+static const struct platform_device_id tps65219_pwrbtn_id_table[] = {
+ { "tps65219-pwrbutton", },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, tps65219_pwrbtn_id_table);
+
+static struct platform_driver tps65219_pb_driver = {
+ .probe = tps65219_pb_probe,
+ .remove = tps65219_pb_remove,
+ .driver = {
+ .name = "tps65219_pwrbutton",
+ },
+ .id_table = tps65219_pwrbtn_id_table,
+};
+module_platform_driver(tps65219_pb_driver);
+
+MODULE_DESCRIPTION("TPS65219 Power Button");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Markus Schneider-Pargmann <msp@baylibre.com");
--
2.17.1
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