From af7e9069543aabd415d7c543f3f89b143ac1a932 Mon Sep 17 00:00:00 2001 From: Jacob Pan Date: Mon, 6 Oct 2014 21:17:14 -0700 Subject: mfd: axp20x: Extend axp20x to support axp288 pmic X-Powers AXP288 is a customized PMIC for Intel Baytrail-CR platforms. Similar to AXP202/209, AXP288 comes with USB charger, more LDO and BUCK channels, and AD converters. It also provides extended status and interrupt reporting capabilities than the devices currently supported in axp20x.c. In addition to feature extension, this patch also adds ACPI binding for enumeration. This consolidated driver should support more X-Powers' PMICs in both device tree and ACPI enumerated platforms. Signed-off-by: Jacob Pan Reviewed-by: Maxime Ripard Reviewed-by: Jonathan Cameron Signed-off-by: Lee Jones --- drivers/mfd/Kconfig | 3 +- drivers/mfd/axp20x.c | 361 +++++++++++++++++++++++++++++++++++++++++++-------- 2 files changed, 308 insertions(+), 56 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index de5abf244746..c183edb45b52 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -74,7 +74,8 @@ config MFD_AXP20X select REGMAP_IRQ depends on I2C=y help - If you say Y here you get support for the X-Powers AXP202 and AXP209. + If you say Y here you get support for the X-Powers AXP202, AXP209 and + AXP288 power management IC (PMIC). This driver include only the core APIs. You have to select individual components like regulators or the PEK (Power Enable Key) under the corresponding menus. diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c index dee653989e3a..b2fb7f492c86 100644 --- a/drivers/mfd/axp20x.c +++ b/drivers/mfd/axp20x.c @@ -1,9 +1,9 @@ /* - * axp20x.c - MFD core driver for the X-Powers AXP202 and AXP209 + * axp20x.c - MFD core driver for the X-Powers' Power Management ICs * - * AXP20x comprises an adaptive USB-Compatible PWM charger, 2 BUCK DC-DC - * converters, 5 LDOs, multiple 12-bit ADCs of voltage, current and temperature - * as well as 4 configurable GPIOs. + * AXP20x typically comprises an adaptive USB-Compatible PWM charger, BUCK DC-DC + * converters, LDOs, multiple 12-bit ADCs of voltage, current and temperature + * as well as configurable GPIOs. * * Author: Carlo Caione * @@ -25,9 +25,16 @@ #include #include #include +#include #define AXP20X_OFF 0x80 +static const char const *axp20x_model_names[] = { + "AXP202", + "AXP209", + "AXP288", +}; + static const struct regmap_range axp20x_writeable_ranges[] = { regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ5_STATE), regmap_reg_range(AXP20X_DCDC_MODE, AXP20X_FG_RES), @@ -47,6 +54,25 @@ static const struct regmap_access_table axp20x_volatile_table = { .n_yes_ranges = ARRAY_SIZE(axp20x_volatile_ranges), }; +static const struct regmap_range axp288_writeable_ranges[] = { + regmap_reg_range(AXP20X_DATACACHE(0), AXP20X_IRQ6_STATE), + regmap_reg_range(AXP20X_DCDC_MODE, AXP288_FG_TUNE5), +}; + +static const struct regmap_range axp288_volatile_ranges[] = { + regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IPSOUT_V_HIGH_L), +}; + +static const struct regmap_access_table axp288_writeable_table = { + .yes_ranges = axp288_writeable_ranges, + .n_yes_ranges = ARRAY_SIZE(axp288_writeable_ranges), +}; + +static const struct regmap_access_table axp288_volatile_table = { + .yes_ranges = axp288_volatile_ranges, + .n_yes_ranges = ARRAY_SIZE(axp288_volatile_ranges), +}; + static struct resource axp20x_pek_resources[] = { { .name = "PEK_DBR", @@ -61,6 +87,39 @@ static struct resource axp20x_pek_resources[] = { }, }; +static struct resource axp288_battery_resources[] = { + { + .start = AXP288_IRQ_QWBTU, + .end = AXP288_IRQ_QWBTU, + .flags = IORESOURCE_IRQ, + }, + { + .start = AXP288_IRQ_WBTU, + .end = AXP288_IRQ_WBTU, + .flags = IORESOURCE_IRQ, + }, + { + .start = AXP288_IRQ_QWBTO, + .end = AXP288_IRQ_QWBTO, + .flags = IORESOURCE_IRQ, + }, + { + .start = AXP288_IRQ_WBTO, + .end = AXP288_IRQ_WBTO, + .flags = IORESOURCE_IRQ, + }, + { + .start = AXP288_IRQ_WL2, + .end = AXP288_IRQ_WL2, + .flags = IORESOURCE_IRQ, + }, + { + .start = AXP288_IRQ_WL1, + .end = AXP288_IRQ_WL1, + .flags = IORESOURCE_IRQ, + }, +}; + static const struct regmap_config axp20x_regmap_config = { .reg_bits = 8, .val_bits = 8, @@ -70,47 +129,96 @@ static const struct regmap_config axp20x_regmap_config = { .cache_type = REGCACHE_RBTREE, }; -#define AXP20X_IRQ(_irq, _off, _mask) \ - [AXP20X_IRQ_##_irq] = { .reg_offset = (_off), .mask = BIT(_mask) } +static const struct regmap_config axp288_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .wr_table = &axp288_writeable_table, + .volatile_table = &axp288_volatile_table, + .max_register = AXP288_FG_TUNE5, + .cache_type = REGCACHE_RBTREE, +}; + +#define INIT_REGMAP_IRQ(_variant, _irq, _off, _mask) \ + [_variant##_IRQ_##_irq] = { .reg_offset = (_off), .mask = BIT(_mask) } static const struct regmap_irq axp20x_regmap_irqs[] = { - AXP20X_IRQ(ACIN_OVER_V, 0, 7), - AXP20X_IRQ(ACIN_PLUGIN, 0, 6), - AXP20X_IRQ(ACIN_REMOVAL, 0, 5), - AXP20X_IRQ(VBUS_OVER_V, 0, 4), - AXP20X_IRQ(VBUS_PLUGIN, 0, 3), - AXP20X_IRQ(VBUS_REMOVAL, 0, 2), - AXP20X_IRQ(VBUS_V_LOW, 0, 1), - AXP20X_IRQ(BATT_PLUGIN, 1, 7), - AXP20X_IRQ(BATT_REMOVAL, 1, 6), - AXP20X_IRQ(BATT_ENT_ACT_MODE, 1, 5), - AXP20X_IRQ(BATT_EXIT_ACT_MODE, 1, 4), - AXP20X_IRQ(CHARG, 1, 3), - AXP20X_IRQ(CHARG_DONE, 1, 2), - AXP20X_IRQ(BATT_TEMP_HIGH, 1, 1), - AXP20X_IRQ(BATT_TEMP_LOW, 1, 0), - AXP20X_IRQ(DIE_TEMP_HIGH, 2, 7), - AXP20X_IRQ(CHARG_I_LOW, 2, 6), - AXP20X_IRQ(DCDC1_V_LONG, 2, 5), - AXP20X_IRQ(DCDC2_V_LONG, 2, 4), - AXP20X_IRQ(DCDC3_V_LONG, 2, 3), - AXP20X_IRQ(PEK_SHORT, 2, 1), - AXP20X_IRQ(PEK_LONG, 2, 0), - AXP20X_IRQ(N_OE_PWR_ON, 3, 7), - AXP20X_IRQ(N_OE_PWR_OFF, 3, 6), - AXP20X_IRQ(VBUS_VALID, 3, 5), - AXP20X_IRQ(VBUS_NOT_VALID, 3, 4), - AXP20X_IRQ(VBUS_SESS_VALID, 3, 3), - AXP20X_IRQ(VBUS_SESS_END, 3, 2), - AXP20X_IRQ(LOW_PWR_LVL1, 3, 1), - AXP20X_IRQ(LOW_PWR_LVL2, 3, 0), - AXP20X_IRQ(TIMER, 4, 7), - AXP20X_IRQ(PEK_RIS_EDGE, 4, 6), - AXP20X_IRQ(PEK_FAL_EDGE, 4, 5), - AXP20X_IRQ(GPIO3_INPUT, 4, 3), - AXP20X_IRQ(GPIO2_INPUT, 4, 2), - AXP20X_IRQ(GPIO1_INPUT, 4, 1), - AXP20X_IRQ(GPIO0_INPUT, 4, 0), + INIT_REGMAP_IRQ(AXP20X, ACIN_OVER_V, 0, 7), + INIT_REGMAP_IRQ(AXP20X, ACIN_PLUGIN, 0, 6), + INIT_REGMAP_IRQ(AXP20X, ACIN_REMOVAL, 0, 5), + INIT_REGMAP_IRQ(AXP20X, VBUS_OVER_V, 0, 4), + INIT_REGMAP_IRQ(AXP20X, VBUS_PLUGIN, 0, 3), + INIT_REGMAP_IRQ(AXP20X, VBUS_REMOVAL, 0, 2), + INIT_REGMAP_IRQ(AXP20X, VBUS_V_LOW, 0, 1), + INIT_REGMAP_IRQ(AXP20X, BATT_PLUGIN, 1, 7), + INIT_REGMAP_IRQ(AXP20X, BATT_REMOVAL, 1, 6), + INIT_REGMAP_IRQ(AXP20X, BATT_ENT_ACT_MODE, 1, 5), + INIT_REGMAP_IRQ(AXP20X, BATT_EXIT_ACT_MODE, 1, 4), + INIT_REGMAP_IRQ(AXP20X, CHARG, 1, 3), + INIT_REGMAP_IRQ(AXP20X, CHARG_DONE, 1, 2), + INIT_REGMAP_IRQ(AXP20X, BATT_TEMP_HIGH, 1, 1), + INIT_REGMAP_IRQ(AXP20X, BATT_TEMP_LOW, 1, 0), + INIT_REGMAP_IRQ(AXP20X, DIE_TEMP_HIGH, 2, 7), + INIT_REGMAP_IRQ(AXP20X, CHARG_I_LOW, 2, 6), + INIT_REGMAP_IRQ(AXP20X, DCDC1_V_LONG, 2, 5), + INIT_REGMAP_IRQ(AXP20X, DCDC2_V_LONG, 2, 4), + INIT_REGMAP_IRQ(AXP20X, DCDC3_V_LONG, 2, 3), + INIT_REGMAP_IRQ(AXP20X, PEK_SHORT, 2, 1), + INIT_REGMAP_IRQ(AXP20X, PEK_LONG, 2, 0), + INIT_REGMAP_IRQ(AXP20X, N_OE_PWR_ON, 3, 7), + INIT_REGMAP_IRQ(AXP20X, N_OE_PWR_OFF, 3, 6), + INIT_REGMAP_IRQ(AXP20X, VBUS_VALID, 3, 5), + INIT_REGMAP_IRQ(AXP20X, VBUS_NOT_VALID, 3, 4), + INIT_REGMAP_IRQ(AXP20X, VBUS_SESS_VALID, 3, 3), + INIT_REGMAP_IRQ(AXP20X, VBUS_SESS_END, 3, 2), + INIT_REGMAP_IRQ(AXP20X, LOW_PWR_LVL1, 3, 1), + INIT_REGMAP_IRQ(AXP20X, LOW_PWR_LVL2, 3, 0), + INIT_REGMAP_IRQ(AXP20X, TIMER, 4, 7), + INIT_REGMAP_IRQ(AXP20X, PEK_RIS_EDGE, 4, 6), + INIT_REGMAP_IRQ(AXP20X, PEK_FAL_EDGE, 4, 5), + INIT_REGMAP_IRQ(AXP20X, GPIO3_INPUT, 4, 3), + INIT_REGMAP_IRQ(AXP20X, GPIO2_INPUT, 4, 2), + INIT_REGMAP_IRQ(AXP20X, GPIO1_INPUT, 4, 1), + INIT_REGMAP_IRQ(AXP20X, GPIO0_INPUT, 4, 0), +}; + +/* some IRQs are compatible with axp20x models */ +static const struct regmap_irq axp288_regmap_irqs[] = { + INIT_REGMAP_IRQ(AXP20X, VBUS_REMOVAL, 0, 2), + INIT_REGMAP_IRQ(AXP20X, VBUS_PLUGIN, 0, 3), + INIT_REGMAP_IRQ(AXP20X, VBUS_OVER_V, 0, 4), + + INIT_REGMAP_IRQ(AXP20X, CHARG_DONE, 1, 2), + INIT_REGMAP_IRQ(AXP20X, CHARG, 1, 3), + INIT_REGMAP_IRQ(AXP288, SAFE_QUIT, 1, 4), + INIT_REGMAP_IRQ(AXP288, SAFE_ENTER, 1, 5), + INIT_REGMAP_IRQ(AXP20X, BATT_REMOVAL, 1, 6), + INIT_REGMAP_IRQ(AXP20X, BATT_PLUGIN, 1, 7), + + INIT_REGMAP_IRQ(AXP288, QWBTU, 2, 0), + INIT_REGMAP_IRQ(AXP288, WBTU, 2, 1), + INIT_REGMAP_IRQ(AXP288, QWBTO, 2, 2), + INIT_REGMAP_IRQ(AXP288, WBTU, 2, 3), + INIT_REGMAP_IRQ(AXP288, QCBTU, 2, 4), + INIT_REGMAP_IRQ(AXP288, CBTU, 2, 5), + INIT_REGMAP_IRQ(AXP288, QCBTO, 2, 6), + INIT_REGMAP_IRQ(AXP288, CBTO, 2, 7), + + INIT_REGMAP_IRQ(AXP288, WL2, 3, 0), + INIT_REGMAP_IRQ(AXP288, WL1, 3, 1), + INIT_REGMAP_IRQ(AXP288, GPADC, 3, 2), + INIT_REGMAP_IRQ(AXP288, OT, 3, 7), + + INIT_REGMAP_IRQ(AXP288, GPIO0, 4, 0), + INIT_REGMAP_IRQ(AXP288, GPIO1, 4, 1), + INIT_REGMAP_IRQ(AXP288, POKO, 4, 2), + INIT_REGMAP_IRQ(AXP288, POKL, 4, 3), + INIT_REGMAP_IRQ(AXP288, POKS, 4, 4), + INIT_REGMAP_IRQ(AXP288, POKN, 4, 5), + INIT_REGMAP_IRQ(AXP288, POKP, 4, 6), + INIT_REGMAP_IRQ(AXP20X, TIMER, 4, 7), + + INIT_REGMAP_IRQ(AXP288, MV_CHNG, 5, 0), + INIT_REGMAP_IRQ(AXP288, BC_USB_CHNG, 5, 1), }; static const struct of_device_id axp20x_of_match[] = { @@ -128,16 +236,39 @@ static const struct i2c_device_id axp20x_i2c_id[] = { }; MODULE_DEVICE_TABLE(i2c, axp20x_i2c_id); +static struct acpi_device_id axp20x_acpi_match[] = { + { + .id = "INT33F4", + .driver_data = AXP288_ID, + }, + { }, +}; +MODULE_DEVICE_TABLE(acpi, axp20x_acpi_match); + static const struct regmap_irq_chip axp20x_regmap_irq_chip = { .name = "axp20x_irq_chip", .status_base = AXP20X_IRQ1_STATE, .ack_base = AXP20X_IRQ1_STATE, .mask_base = AXP20X_IRQ1_EN, - .num_regs = 5, + .mask_invert = true, + .init_ack_masked = true, .irqs = axp20x_regmap_irqs, .num_irqs = ARRAY_SIZE(axp20x_regmap_irqs), + .num_regs = 5, + +}; + +static const struct regmap_irq_chip axp288_regmap_irq_chip = { + .name = "axp288_irq_chip", + .status_base = AXP20X_IRQ1_STATE, + .ack_base = AXP20X_IRQ1_STATE, + .mask_base = AXP20X_IRQ1_EN, .mask_invert = true, .init_ack_masked = true, + .irqs = axp288_regmap_irqs, + .num_irqs = ARRAY_SIZE(axp288_regmap_irqs), + .num_regs = 6, + }; static const char * const axp20x_supplies[] = { @@ -161,36 +292,155 @@ static struct mfd_cell axp20x_cells[] = { }, }; +static struct resource axp288_adc_resources[] = { + { + .name = "GPADC", + .start = AXP288_IRQ_GPADC, + .end = AXP288_IRQ_GPADC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct resource axp288_charger_resources[] = { + { + .start = AXP288_IRQ_OV, + .end = AXP288_IRQ_OV, + .flags = IORESOURCE_IRQ, + }, + { + .start = AXP288_IRQ_DONE, + .end = AXP288_IRQ_DONE, + .flags = IORESOURCE_IRQ, + }, + { + .start = AXP288_IRQ_CHARGING, + .end = AXP288_IRQ_CHARGING, + .flags = IORESOURCE_IRQ, + }, + { + .start = AXP288_IRQ_SAFE_QUIT, + .end = AXP288_IRQ_SAFE_QUIT, + .flags = IORESOURCE_IRQ, + }, + { + .start = AXP288_IRQ_SAFE_ENTER, + .end = AXP288_IRQ_SAFE_ENTER, + .flags = IORESOURCE_IRQ, + }, + { + .start = AXP288_IRQ_QCBTU, + .end = AXP288_IRQ_QCBTU, + .flags = IORESOURCE_IRQ, + }, + { + .start = AXP288_IRQ_CBTU, + .end = AXP288_IRQ_CBTU, + .flags = IORESOURCE_IRQ, + }, + { + .start = AXP288_IRQ_QCBTO, + .end = AXP288_IRQ_QCBTO, + .flags = IORESOURCE_IRQ, + }, + { + .start = AXP288_IRQ_CBTO, + .end = AXP288_IRQ_CBTO, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct mfd_cell axp288_cells[] = { + { + .name = "axp288_adc", + .num_resources = ARRAY_SIZE(axp288_adc_resources), + .resources = axp288_adc_resources, + }, + { + .name = "axp288_charger", + .num_resources = ARRAY_SIZE(axp288_charger_resources), + .resources = axp288_charger_resources, + }, + { + .name = "axp288_battery", + .num_resources = ARRAY_SIZE(axp288_battery_resources), + .resources = axp288_battery_resources, + }, +}; + static struct axp20x_dev *axp20x_pm_power_off; static void axp20x_power_off(void) { + if (axp20x_pm_power_off->variant == AXP288_ID) + return; + regmap_write(axp20x_pm_power_off->regmap, AXP20X_OFF_CTRL, AXP20X_OFF); } +static int axp20x_match_device(struct axp20x_dev *axp20x, struct device *dev) +{ + const struct acpi_device_id *acpi_id; + const struct of_device_id *of_id; + + if (dev->of_node) { + of_id = of_match_device(axp20x_of_match, dev); + if (!of_id) { + dev_err(dev, "Unable to match OF ID\n"); + return -ENODEV; + } + axp20x->variant = (long) of_id->data; + } else { + acpi_id = acpi_match_device(dev->driver->acpi_match_table, dev); + if (!acpi_id || !acpi_id->driver_data) { + dev_err(dev, "Unable to match ACPI ID and data\n"); + return -ENODEV; + } + axp20x->variant = (long) acpi_id->driver_data; + } + + switch (axp20x->variant) { + case AXP202_ID: + case AXP209_ID: + axp20x->nr_cells = ARRAY_SIZE(axp20x_cells); + axp20x->cells = axp20x_cells; + axp20x->regmap_cfg = &axp20x_regmap_config; + axp20x->regmap_irq_chip = &axp20x_regmap_irq_chip; + break; + case AXP288_ID: + axp20x->cells = axp288_cells; + axp20x->nr_cells = ARRAY_SIZE(axp288_cells); + axp20x->regmap_cfg = &axp288_regmap_config; + axp20x->regmap_irq_chip = &axp288_regmap_irq_chip; + break; + default: + dev_err(dev, "unsupported AXP20X ID %lu\n", axp20x->variant); + return -EINVAL; + } + dev_info(dev, "AXP20x variant %s found\n", + axp20x_model_names[axp20x->variant]); + + return 0; +} + static int axp20x_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { struct axp20x_dev *axp20x; - const struct of_device_id *of_id; int ret; axp20x = devm_kzalloc(&i2c->dev, sizeof(*axp20x), GFP_KERNEL); if (!axp20x) return -ENOMEM; - of_id = of_match_device(axp20x_of_match, &i2c->dev); - if (!of_id) { - dev_err(&i2c->dev, "Unable to setup AXP20X data\n"); - return -ENODEV; - } - axp20x->variant = (long) of_id->data; + ret = axp20x_match_device(axp20x, &i2c->dev); + if (ret) + return ret; axp20x->i2c_client = i2c; axp20x->dev = &i2c->dev; dev_set_drvdata(axp20x->dev, axp20x); - axp20x->regmap = devm_regmap_init_i2c(i2c, &axp20x_regmap_config); + axp20x->regmap = devm_regmap_init_i2c(i2c, axp20x->regmap_cfg); if (IS_ERR(axp20x->regmap)) { ret = PTR_ERR(axp20x->regmap); dev_err(&i2c->dev, "regmap init failed: %d\n", ret); @@ -199,15 +449,15 @@ static int axp20x_i2c_probe(struct i2c_client *i2c, ret = regmap_add_irq_chip(axp20x->regmap, i2c->irq, IRQF_ONESHOT | IRQF_SHARED, -1, - &axp20x_regmap_irq_chip, + axp20x->regmap_irq_chip, &axp20x->regmap_irqc); if (ret) { dev_err(&i2c->dev, "failed to add irq chip: %d\n", ret); return ret; } - ret = mfd_add_devices(axp20x->dev, -1, axp20x_cells, - ARRAY_SIZE(axp20x_cells), NULL, 0, NULL); + ret = mfd_add_devices(axp20x->dev, -1, axp20x->cells, + axp20x->nr_cells, NULL, 0, NULL); if (ret) { dev_err(&i2c->dev, "failed to add MFD devices: %d\n", ret); @@ -245,6 +495,7 @@ static struct i2c_driver axp20x_i2c_driver = { .name = "axp20x", .owner = THIS_MODULE, .of_match_table = of_match_ptr(axp20x_of_match), + .acpi_match_table = ACPI_PTR(axp20x_acpi_match), }, .probe = axp20x_i2c_probe, .remove = axp20x_i2c_remove, -- cgit v1.2.3 From 338a128142975439a19ab3c91480bc9d5a71f033 Mon Sep 17 00:00:00 2001 From: Octavian Purdila Date: Thu, 6 Nov 2014 15:48:03 +0200 Subject: mfd: Add support for Diolan DLN-2 devices This patch implements the USB part of the Diolan USB-I2C/SPI/GPIO Master Adapter DLN-2. Details about the device can be found here: https://www.diolan.com/i2c/i2c_interface.html. Information about the USB protocol can be found in the Programmer's Reference Manual [1], see section 1.7. Because the hardware has a single transmit endpoint and a single receive endpoint the communication between the various DLN2 drivers and the hardware will be muxed/demuxed by this driver. Each DLN2 module will be identified by the handle field within the DLN2 message header. If a DLN2 module issues multiple commands in parallel they will be identified by the echo counter field in the message header. The DLN2 modules can use the dln2_transfer() function to issue a command and wait for its response. They can also register a callback that is going to be called when a specific event id is generated by the device (e.g. GPIO interrupts). The device uses handle 0 for sending events. [1] https://www.diolan.com/downloads/dln-api-manual.pdf Signed-off-by: Octavian Purdila Reviewed-by: Johan Hovold Signed-off-by: Lee Jones --- drivers/mfd/Kconfig | 10 + drivers/mfd/Makefile | 1 + drivers/mfd/dln2.c | 763 +++++++++++++++++++++++++++++++++++++++++++++++ include/linux/mfd/dln2.h | 103 +++++++ 4 files changed, 877 insertions(+) create mode 100644 drivers/mfd/dln2.c create mode 100644 include/linux/mfd/dln2.h (limited to 'drivers/mfd') diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 1456ea70bbc7..c1acc76a519f 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -183,6 +183,16 @@ config MFD_DA9063 Additional drivers must be enabled in order to use the functionality of the device. +config MFD_DLN2 + tristate "Diolan DLN2 support" + select MFD_CORE + depends on USB + help + This adds support for Diolan USB-I2C/SPI/GPIO Master Adapter + DLN-2. Additional drivers such as I2C_DLN2, GPIO_DLN2, + etc. must be enabled in order to use the functionality of + the device. + config MFD_MC13XXX tristate depends on (SPI_MASTER || I2C) diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 8bd54b1253af..10bbd0b9096b 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -174,6 +174,7 @@ obj-$(CONFIG_MFD_STW481X) += stw481x.o obj-$(CONFIG_MFD_IPAQ_MICRO) += ipaq-micro.o obj-$(CONFIG_MFD_MENF21BMC) += menf21bmc.o obj-$(CONFIG_MFD_HI6421_PMIC) += hi6421-pmic-core.o +obj-$(CONFIG_MFD_DLN2) += dln2.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/dln2.c b/drivers/mfd/dln2.c new file mode 100644 index 000000000000..9765a174d2c5 --- /dev/null +++ b/drivers/mfd/dln2.c @@ -0,0 +1,763 @@ +/* + * Driver for the Diolan DLN-2 USB adapter + * + * Copyright (c) 2014 Intel Corporation + * + * Derived from: + * i2c-diolan-u2c.c + * Copyright (c) 2010-2011 Ericsson AB + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation, version 2. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct dln2_header { + __le16 size; + __le16 id; + __le16 echo; + __le16 handle; +}; + +struct dln2_response { + struct dln2_header hdr; + __le16 result; +}; + +#define DLN2_GENERIC_MODULE_ID 0x00 +#define DLN2_GENERIC_CMD(cmd) DLN2_CMD(cmd, DLN2_GENERIC_MODULE_ID) +#define CMD_GET_DEVICE_VER DLN2_GENERIC_CMD(0x30) +#define CMD_GET_DEVICE_SN DLN2_GENERIC_CMD(0x31) + +#define DLN2_HW_ID 0x200 +#define DLN2_USB_TIMEOUT 200 /* in ms */ +#define DLN2_MAX_RX_SLOTS 16 +#define DLN2_MAX_URBS 16 +#define DLN2_RX_BUF_SIZE 512 + +enum dln2_handle { + DLN2_HANDLE_EVENT = 0, /* don't change, hardware defined */ + DLN2_HANDLE_CTRL, + DLN2_HANDLE_GPIO, + DLN2_HANDLE_I2C, + DLN2_HANDLES +}; + +/* + * Receive context used between the receive demultiplexer and the transfer + * routine. While sending a request the transfer routine will look for a free + * receive context and use it to wait for a response and to receive the URB and + * thus the response data. + */ +struct dln2_rx_context { + /* completion used to wait for a response */ + struct completion done; + + /* if non-NULL the URB contains the response */ + struct urb *urb; + + /* if true then this context is used to wait for a response */ + bool in_use; +}; + +/* + * Receive contexts for a particular DLN2 module (i2c, gpio, etc.). We use the + * handle header field to identify the module in dln2_dev.mod_rx_slots and then + * the echo header field to index the slots field and find the receive context + * for a particular request. + */ +struct dln2_mod_rx_slots { + /* RX slots bitmap */ + DECLARE_BITMAP(bmap, DLN2_MAX_RX_SLOTS); + + /* used to wait for a free RX slot */ + wait_queue_head_t wq; + + /* used to wait for an RX operation to complete */ + struct dln2_rx_context slots[DLN2_MAX_RX_SLOTS]; + + /* avoid races between alloc/free_rx_slot and dln2_rx_transfer */ + spinlock_t lock; +}; + +struct dln2_dev { + struct usb_device *usb_dev; + struct usb_interface *interface; + u8 ep_in; + u8 ep_out; + + struct urb *rx_urb[DLN2_MAX_URBS]; + void *rx_buf[DLN2_MAX_URBS]; + + struct dln2_mod_rx_slots mod_rx_slots[DLN2_HANDLES]; + + struct list_head event_cb_list; + spinlock_t event_cb_lock; + + bool disconnect; + int active_transfers; + wait_queue_head_t disconnect_wq; + spinlock_t disconnect_lock; +}; + +struct dln2_event_cb_entry { + struct list_head list; + u16 id; + struct platform_device *pdev; + dln2_event_cb_t callback; +}; + +int dln2_register_event_cb(struct platform_device *pdev, u16 id, + dln2_event_cb_t event_cb) +{ + struct dln2_dev *dln2 = dev_get_drvdata(pdev->dev.parent); + struct dln2_event_cb_entry *i, *entry; + unsigned long flags; + int ret = 0; + + entry = kzalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) + return -ENOMEM; + + entry->id = id; + entry->callback = event_cb; + entry->pdev = pdev; + + spin_lock_irqsave(&dln2->event_cb_lock, flags); + + list_for_each_entry(i, &dln2->event_cb_list, list) { + if (i->id == id) { + ret = -EBUSY; + break; + } + } + + if (!ret) + list_add_rcu(&entry->list, &dln2->event_cb_list); + + spin_unlock_irqrestore(&dln2->event_cb_lock, flags); + + if (ret) + kfree(entry); + + return ret; +} +EXPORT_SYMBOL(dln2_register_event_cb); + +void dln2_unregister_event_cb(struct platform_device *pdev, u16 id) +{ + struct dln2_dev *dln2 = dev_get_drvdata(pdev->dev.parent); + struct dln2_event_cb_entry *i; + unsigned long flags; + bool found = false; + + spin_lock_irqsave(&dln2->event_cb_lock, flags); + + list_for_each_entry(i, &dln2->event_cb_list, list) { + if (i->id == id) { + list_del_rcu(&i->list); + found = true; + break; + } + } + + spin_unlock_irqrestore(&dln2->event_cb_lock, flags); + + if (found) { + synchronize_rcu(); + kfree(i); + } +} +EXPORT_SYMBOL(dln2_unregister_event_cb); + +/* + * Returns true if a valid transfer slot is found. In this case the URB must not + * be resubmitted immediately in dln2_rx as we need the data when dln2_transfer + * is woke up. It will be resubmitted there. + */ +static bool dln2_transfer_complete(struct dln2_dev *dln2, struct urb *urb, + u16 handle, u16 rx_slot) +{ + struct device *dev = &dln2->interface->dev; + struct dln2_mod_rx_slots *rxs = &dln2->mod_rx_slots[handle]; + struct dln2_rx_context *rxc; + bool valid_slot = false; + + rxc = &rxs->slots[rx_slot]; + + /* + * No need to disable interrupts as this lock is not taken in interrupt + * context elsewhere in this driver. This function (or its callers) are + * also not exported to other modules. + */ + spin_lock(&rxs->lock); + if (rxc->in_use && !rxc->urb) { + rxc->urb = urb; + complete(&rxc->done); + valid_slot = true; + } + spin_unlock(&rxs->lock); + + if (!valid_slot) + dev_warn(dev, "bad/late response %d/%d\n", handle, rx_slot); + + return valid_slot; +} + +static void dln2_run_event_callbacks(struct dln2_dev *dln2, u16 id, u16 echo, + void *data, int len) +{ + struct dln2_event_cb_entry *i; + + rcu_read_lock(); + + list_for_each_entry_rcu(i, &dln2->event_cb_list, list) { + if (i->id == id) { + i->callback(i->pdev, echo, data, len); + break; + } + } + + rcu_read_unlock(); +} + +static void dln2_rx(struct urb *urb) +{ + struct dln2_dev *dln2 = urb->context; + struct dln2_header *hdr = urb->transfer_buffer; + struct device *dev = &dln2->interface->dev; + u16 id, echo, handle, size; + u8 *data; + int len; + int err; + + switch (urb->status) { + case 0: + /* success */ + break; + case -ECONNRESET: + case -ENOENT: + case -ESHUTDOWN: + case -EPIPE: + /* this urb is terminated, clean up */ + dev_dbg(dev, "urb shutting down with status %d\n", urb->status); + return; + default: + dev_dbg(dev, "nonzero urb status received %d\n", urb->status); + goto out; + } + + if (urb->actual_length < sizeof(struct dln2_header)) { + dev_err(dev, "short response: %d\n", urb->actual_length); + goto out; + } + + handle = le16_to_cpu(hdr->handle); + id = le16_to_cpu(hdr->id); + echo = le16_to_cpu(hdr->echo); + size = le16_to_cpu(hdr->size); + + if (size != urb->actual_length) { + dev_err(dev, "size mismatch: handle %x cmd %x echo %x size %d actual %d\n", + handle, id, echo, size, urb->actual_length); + goto out; + } + + if (handle >= DLN2_HANDLES) { + dev_warn(dev, "invalid handle %d\n", handle); + goto out; + } + + data = urb->transfer_buffer + sizeof(struct dln2_header); + len = urb->actual_length - sizeof(struct dln2_header); + + if (handle == DLN2_HANDLE_EVENT) { + dln2_run_event_callbacks(dln2, id, echo, data, len); + } else { + /* URB will be re-submitted in _dln2_transfer (free_rx_slot) */ + if (dln2_transfer_complete(dln2, urb, handle, echo)) + return; + } + +out: + err = usb_submit_urb(urb, GFP_ATOMIC); + if (err < 0) + dev_err(dev, "failed to resubmit RX URB: %d\n", err); +} + +static void *dln2_prep_buf(u16 handle, u16 cmd, u16 echo, const void *obuf, + int *obuf_len, gfp_t gfp) +{ + int len; + void *buf; + struct dln2_header *hdr; + + len = *obuf_len + sizeof(*hdr); + buf = kmalloc(len, gfp); + if (!buf) + return NULL; + + hdr = (struct dln2_header *)buf; + hdr->id = cpu_to_le16(cmd); + hdr->size = cpu_to_le16(len); + hdr->echo = cpu_to_le16(echo); + hdr->handle = cpu_to_le16(handle); + + memcpy(buf + sizeof(*hdr), obuf, *obuf_len); + + *obuf_len = len; + + return buf; +} + +static int dln2_send_wait(struct dln2_dev *dln2, u16 handle, u16 cmd, u16 echo, + const void *obuf, int obuf_len) +{ + int ret = 0; + int len = obuf_len; + void *buf; + int actual; + + buf = dln2_prep_buf(handle, cmd, echo, obuf, &len, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + ret = usb_bulk_msg(dln2->usb_dev, + usb_sndbulkpipe(dln2->usb_dev, dln2->ep_out), + buf, len, &actual, DLN2_USB_TIMEOUT); + + kfree(buf); + + return ret; +} + +static bool find_free_slot(struct dln2_dev *dln2, u16 handle, int *slot) +{ + struct dln2_mod_rx_slots *rxs; + unsigned long flags; + + if (dln2->disconnect) { + *slot = -ENODEV; + return true; + } + + rxs = &dln2->mod_rx_slots[handle]; + + spin_lock_irqsave(&rxs->lock, flags); + + *slot = find_first_zero_bit(rxs->bmap, DLN2_MAX_RX_SLOTS); + + if (*slot < DLN2_MAX_RX_SLOTS) { + struct dln2_rx_context *rxc = &rxs->slots[*slot]; + + set_bit(*slot, rxs->bmap); + rxc->in_use = true; + } + + spin_unlock_irqrestore(&rxs->lock, flags); + + return *slot < DLN2_MAX_RX_SLOTS; +} + +static int alloc_rx_slot(struct dln2_dev *dln2, u16 handle) +{ + int ret; + int slot; + + /* + * No need to timeout here, the wait is bounded by the timeout in + * _dln2_transfer. + */ + ret = wait_event_interruptible(dln2->mod_rx_slots[handle].wq, + find_free_slot(dln2, handle, &slot)); + if (ret < 0) + return ret; + + return slot; +} + +static void free_rx_slot(struct dln2_dev *dln2, u16 handle, int slot) +{ + struct dln2_mod_rx_slots *rxs; + struct urb *urb = NULL; + unsigned long flags; + struct dln2_rx_context *rxc; + + rxs = &dln2->mod_rx_slots[handle]; + + spin_lock_irqsave(&rxs->lock, flags); + + clear_bit(slot, rxs->bmap); + + rxc = &rxs->slots[slot]; + rxc->in_use = false; + urb = rxc->urb; + rxc->urb = NULL; + reinit_completion(&rxc->done); + + spin_unlock_irqrestore(&rxs->lock, flags); + + if (urb) { + int err; + struct device *dev = &dln2->interface->dev; + + err = usb_submit_urb(urb, GFP_KERNEL); + if (err < 0) + dev_err(dev, "failed to resubmit RX URB: %d\n", err); + } + + wake_up_interruptible(&rxs->wq); +} + +static int _dln2_transfer(struct dln2_dev *dln2, u16 handle, u16 cmd, + const void *obuf, unsigned obuf_len, + void *ibuf, unsigned *ibuf_len) +{ + int ret = 0; + int rx_slot; + struct dln2_response *rsp; + struct dln2_rx_context *rxc; + struct device *dev = &dln2->interface->dev; + const unsigned long timeout = DLN2_USB_TIMEOUT * HZ / 1000; + struct dln2_mod_rx_slots *rxs = &dln2->mod_rx_slots[handle]; + + spin_lock(&dln2->disconnect_lock); + if (!dln2->disconnect) + dln2->active_transfers++; + else + ret = -ENODEV; + spin_unlock(&dln2->disconnect_lock); + + if (ret) + return ret; + + rx_slot = alloc_rx_slot(dln2, handle); + if (rx_slot < 0) { + ret = rx_slot; + goto out_decr; + } + + ret = dln2_send_wait(dln2, handle, cmd, rx_slot, obuf, obuf_len); + if (ret < 0) { + dev_err(dev, "USB write failed: %d\n", ret); + goto out_free_rx_slot; + } + + rxc = &rxs->slots[rx_slot]; + + ret = wait_for_completion_interruptible_timeout(&rxc->done, timeout); + if (ret <= 0) { + if (!ret) + ret = -ETIMEDOUT; + goto out_free_rx_slot; + } + + if (dln2->disconnect) { + ret = -ENODEV; + goto out_free_rx_slot; + } + + /* if we got here we know that the response header has been checked */ + rsp = rxc->urb->transfer_buffer; + + if (rsp->hdr.size < sizeof(*rsp)) { + ret = -EPROTO; + goto out_free_rx_slot; + } + + if (le16_to_cpu(rsp->result) > 0x80) { + dev_dbg(dev, "%d received response with error %d\n", + handle, le16_to_cpu(rsp->result)); + ret = -EREMOTEIO; + goto out_free_rx_slot; + } + + if (!ibuf) { + ret = 0; + goto out_free_rx_slot; + } + + if (*ibuf_len > rsp->hdr.size - sizeof(*rsp)) + *ibuf_len = rsp->hdr.size - sizeof(*rsp); + + memcpy(ibuf, rsp + 1, *ibuf_len); + +out_free_rx_slot: + free_rx_slot(dln2, handle, rx_slot); +out_decr: + spin_lock(&dln2->disconnect_lock); + dln2->active_transfers--; + spin_unlock(&dln2->disconnect_lock); + if (dln2->disconnect) + wake_up(&dln2->disconnect_wq); + + return ret; +} + +int dln2_transfer(struct platform_device *pdev, u16 cmd, + const void *obuf, unsigned obuf_len, + void *ibuf, unsigned *ibuf_len) +{ + struct dln2_platform_data *dln2_pdata; + struct dln2_dev *dln2; + u16 handle; + + dln2 = dev_get_drvdata(pdev->dev.parent); + dln2_pdata = dev_get_platdata(&pdev->dev); + handle = dln2_pdata->handle; + + return _dln2_transfer(dln2, handle, cmd, obuf, obuf_len, ibuf, + ibuf_len); +} +EXPORT_SYMBOL(dln2_transfer); + +static int dln2_check_hw(struct dln2_dev *dln2) +{ + int ret; + __le32 hw_type; + int len = sizeof(hw_type); + + ret = _dln2_transfer(dln2, DLN2_HANDLE_CTRL, CMD_GET_DEVICE_VER, + NULL, 0, &hw_type, &len); + if (ret < 0) + return ret; + if (len < sizeof(hw_type)) + return -EREMOTEIO; + + if (le32_to_cpu(hw_type) != DLN2_HW_ID) { + dev_err(&dln2->interface->dev, "Device ID 0x%x not supported\n", + le32_to_cpu(hw_type)); + return -ENODEV; + } + + return 0; +} + +static int dln2_print_serialno(struct dln2_dev *dln2) +{ + int ret; + __le32 serial_no; + int len = sizeof(serial_no); + struct device *dev = &dln2->interface->dev; + + ret = _dln2_transfer(dln2, DLN2_HANDLE_CTRL, CMD_GET_DEVICE_SN, NULL, 0, + &serial_no, &len); + if (ret < 0) + return ret; + if (len < sizeof(serial_no)) + return -EREMOTEIO; + + dev_info(dev, "Diolan DLN2 serial %u\n", le32_to_cpu(serial_no)); + + return 0; +} + +static int dln2_hw_init(struct dln2_dev *dln2) +{ + int ret; + + ret = dln2_check_hw(dln2); + if (ret < 0) + return ret; + + return dln2_print_serialno(dln2); +} + +static void dln2_free_rx_urbs(struct dln2_dev *dln2) +{ + int i; + + for (i = 0; i < DLN2_MAX_URBS; i++) { + usb_kill_urb(dln2->rx_urb[i]); + usb_free_urb(dln2->rx_urb[i]); + kfree(dln2->rx_buf[i]); + } +} + +static void dln2_free(struct dln2_dev *dln2) +{ + dln2_free_rx_urbs(dln2); + usb_put_dev(dln2->usb_dev); + kfree(dln2); +} + +static int dln2_setup_rx_urbs(struct dln2_dev *dln2, + struct usb_host_interface *hostif) +{ + int i; + int ret; + const int rx_max_size = DLN2_RX_BUF_SIZE; + struct device *dev = &dln2->interface->dev; + + for (i = 0; i < DLN2_MAX_URBS; i++) { + dln2->rx_buf[i] = kmalloc(rx_max_size, GFP_KERNEL); + if (!dln2->rx_buf[i]) + return -ENOMEM; + + dln2->rx_urb[i] = usb_alloc_urb(0, GFP_KERNEL); + if (!dln2->rx_urb[i]) + return -ENOMEM; + + usb_fill_bulk_urb(dln2->rx_urb[i], dln2->usb_dev, + usb_rcvbulkpipe(dln2->usb_dev, dln2->ep_in), + dln2->rx_buf[i], rx_max_size, dln2_rx, dln2); + + ret = usb_submit_urb(dln2->rx_urb[i], GFP_KERNEL); + if (ret < 0) { + dev_err(dev, "failed to submit RX URB: %d\n", ret); + return ret; + } + } + + return 0; +} + +static struct dln2_platform_data dln2_pdata_gpio = { + .handle = DLN2_HANDLE_GPIO, +}; + +/* Only one I2C port seems to be supported on current hardware */ +static struct dln2_platform_data dln2_pdata_i2c = { + .handle = DLN2_HANDLE_I2C, + .port = 0, +}; + +static const struct mfd_cell dln2_devs[] = { + { + .name = "dln2-gpio", + .platform_data = &dln2_pdata_gpio, + .pdata_size = sizeof(struct dln2_platform_data), + }, + { + .name = "dln2-i2c", + .platform_data = &dln2_pdata_i2c, + .pdata_size = sizeof(struct dln2_platform_data), + }, +}; + +static void dln2_disconnect(struct usb_interface *interface) +{ + struct dln2_dev *dln2 = usb_get_intfdata(interface); + int i, j; + + /* don't allow starting new transfers */ + spin_lock(&dln2->disconnect_lock); + dln2->disconnect = true; + spin_unlock(&dln2->disconnect_lock); + + /* cancel in progress transfers */ + for (i = 0; i < DLN2_HANDLES; i++) { + struct dln2_mod_rx_slots *rxs = &dln2->mod_rx_slots[i]; + unsigned long flags; + + spin_lock_irqsave(&rxs->lock, flags); + + /* cancel all response waiters */ + for (j = 0; j < DLN2_MAX_RX_SLOTS; j++) { + struct dln2_rx_context *rxc = &rxs->slots[j]; + + if (rxc->in_use) + complete(&rxc->done); + } + + spin_unlock_irqrestore(&rxs->lock, flags); + } + + /* wait for transfers to end */ + wait_event(dln2->disconnect_wq, !dln2->active_transfers); + + mfd_remove_devices(&interface->dev); + + dln2_free(dln2); +} + +static int dln2_probe(struct usb_interface *interface, + const struct usb_device_id *usb_id) +{ + struct usb_host_interface *hostif = interface->cur_altsetting; + struct device *dev = &interface->dev; + struct dln2_dev *dln2; + int ret; + int i, j; + + if (hostif->desc.bInterfaceNumber != 0 || + hostif->desc.bNumEndpoints < 2) + return -ENODEV; + + dln2 = kzalloc(sizeof(*dln2), GFP_KERNEL); + if (!dln2) + return -ENOMEM; + + dln2->ep_out = hostif->endpoint[0].desc.bEndpointAddress; + dln2->ep_in = hostif->endpoint[1].desc.bEndpointAddress; + dln2->usb_dev = usb_get_dev(interface_to_usbdev(interface)); + dln2->interface = interface; + usb_set_intfdata(interface, dln2); + init_waitqueue_head(&dln2->disconnect_wq); + + for (i = 0; i < DLN2_HANDLES; i++) { + init_waitqueue_head(&dln2->mod_rx_slots[i].wq); + spin_lock_init(&dln2->mod_rx_slots[i].lock); + for (j = 0; j < DLN2_MAX_RX_SLOTS; j++) + init_completion(&dln2->mod_rx_slots[i].slots[j].done); + } + + spin_lock_init(&dln2->event_cb_lock); + spin_lock_init(&dln2->disconnect_lock); + INIT_LIST_HEAD(&dln2->event_cb_list); + + ret = dln2_setup_rx_urbs(dln2, hostif); + if (ret) + goto out_cleanup; + + ret = dln2_hw_init(dln2); + if (ret < 0) { + dev_err(dev, "failed to initialize hardware\n"); + goto out_cleanup; + } + + ret = mfd_add_hotplug_devices(dev, dln2_devs, ARRAY_SIZE(dln2_devs)); + if (ret != 0) { + dev_err(dev, "failed to add mfd devices to core\n"); + goto out_cleanup; + } + + return 0; + +out_cleanup: + dln2_free(dln2); + + return ret; +} + +static const struct usb_device_id dln2_table[] = { + { USB_DEVICE(0xa257, 0x2013) }, + { } +}; + +MODULE_DEVICE_TABLE(usb, dln2_table); + +static struct usb_driver dln2_driver = { + .name = "dln2", + .probe = dln2_probe, + .disconnect = dln2_disconnect, + .id_table = dln2_table, +}; + +module_usb_driver(dln2_driver); + +MODULE_AUTHOR("Octavian Purdila "); +MODULE_DESCRIPTION("Core driver for the Diolan DLN2 interface adapter"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/mfd/dln2.h b/include/linux/mfd/dln2.h new file mode 100644 index 000000000000..004b24576da8 --- /dev/null +++ b/include/linux/mfd/dln2.h @@ -0,0 +1,103 @@ +#ifndef __LINUX_USB_DLN2_H +#define __LINUX_USB_DLN2_H + +#define DLN2_CMD(cmd, id) ((cmd) | ((id) << 8)) + +struct dln2_platform_data { + u16 handle; /* sub-driver handle (internally used only) */ + u8 port; /* I2C/SPI port */ +}; + +/** + * dln2_event_cb_t - event callback function signature + * + * @pdev - the sub-device that registered this callback + * @echo - the echo header field received in the message + * @data - the data payload + * @len - the data payload length + * + * The callback function is called in interrupt context and the data payload is + * only valid during the call. If the user needs later access of the data, it + * must copy it. + */ + +typedef void (*dln2_event_cb_t)(struct platform_device *pdev, u16 echo, + const void *data, int len); + +/** + * dl2n_register_event_cb - register a callback function for an event + * + * @pdev - the sub-device that registers the callback + * @event - the event for which to register a callback + * @event_cb - the callback function + * + * @return 0 in case of success, negative value in case of error + */ +int dln2_register_event_cb(struct platform_device *pdev, u16 event, + dln2_event_cb_t event_cb); + +/** + * dln2_unregister_event_cb - unregister the callback function for an event + * + * @pdev - the sub-device that registered the callback + * @event - the event for which to register a callback + */ +void dln2_unregister_event_cb(struct platform_device *pdev, u16 event); + +/** + * dln2_transfer - issue a DLN2 command and wait for a response and the + * associated data + * + * @pdev - the sub-device which is issuing this transfer + * @cmd - the command to be sent to the device + * @obuf - the buffer to be sent to the device; it can be NULL if the user + * doesn't need to transmit data with this command + * @obuf_len - the size of the buffer to be sent to the device + * @ibuf - any data associated with the response will be copied here; it can be + * NULL if the user doesn't need the response data + * @ibuf_len - must be initialized to the input buffer size; it will be modified + * to indicate the actual data transferred; + * + * @return 0 for success, negative value for errors + */ +int dln2_transfer(struct platform_device *pdev, u16 cmd, + const void *obuf, unsigned obuf_len, + void *ibuf, unsigned *ibuf_len); + +/** + * dln2_transfer_rx - variant of @dln2_transfer() where TX buffer is not needed + * + * @pdev - the sub-device which is issuing this transfer + * @cmd - the command to be sent to the device + * @ibuf - any data associated with the response will be copied here; it can be + * NULL if the user doesn't need the response data + * @ibuf_len - must be initialized to the input buffer size; it will be modified + * to indicate the actual data transferred; + * + * @return 0 for success, negative value for errors + */ + +static inline int dln2_transfer_rx(struct platform_device *pdev, u16 cmd, + void *ibuf, unsigned *ibuf_len) +{ + return dln2_transfer(pdev, cmd, NULL, 0, ibuf, ibuf_len); +} + +/** + * dln2_transfer_tx - variant of @dln2_transfer() where RX buffer is not needed + * + * @pdev - the sub-device which is issuing this transfer + * @cmd - the command to be sent to the device + * @obuf - the buffer to be sent to the device; it can be NULL if the + * user doesn't need to transmit data with this command + * @obuf_len - the size of the buffer to be sent to the device + * + * @return 0 for success, negative value for errors + */ +static inline int dln2_transfer_tx(struct platform_device *pdev, u16 cmd, + const void *obuf, unsigned obuf_len) +{ + return dln2_transfer(pdev, cmd, obuf, obuf_len, NULL, NULL); +} + +#endif -- cgit v1.2.3 From ff3bbc5c637ab0843b3a9df717b6cca4e8243f0c Mon Sep 17 00:00:00 2001 From: Jacob Pan Date: Tue, 11 Nov 2014 11:30:09 -0800 Subject: mfd/axp20x: avoid irq numbering collision IRQ numbers in axp20x devices are defined with high-order bit first in each IRQ enable/status registers. On Intel platforms it is more common to number IRQs with least significant bit first. Therefore, sharing IRQ# between the two is very difficult. Since AXP288 is a customized PMIC for Intel platform and the amount of shared IRQs are very small, we use separate IRQ numbering. This also fixes collision and a duplicate in WBTO interrupt. e.g. For the 16 interrupts controlled in IRQ enabled registers 1 & 2, on axp20x for ARM, the PMIC local IRQ numbers and register bits are mapped as: IRQ#: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 --------------------------------------------------------- ARM: 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 Intel: 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 Signed-off-by: Todd Brandt Signed-off-by: Jacob Pan Acked-by: Jonathan Cameron Signed-off-by: Lee Jones --- drivers/mfd/axp20x.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c index b2fb7f492c86..9c4714e13c3c 100644 --- a/drivers/mfd/axp20x.c +++ b/drivers/mfd/axp20x.c @@ -183,21 +183,21 @@ static const struct regmap_irq axp20x_regmap_irqs[] = { /* some IRQs are compatible with axp20x models */ static const struct regmap_irq axp288_regmap_irqs[] = { - INIT_REGMAP_IRQ(AXP20X, VBUS_REMOVAL, 0, 2), - INIT_REGMAP_IRQ(AXP20X, VBUS_PLUGIN, 0, 3), - INIT_REGMAP_IRQ(AXP20X, VBUS_OVER_V, 0, 4), + INIT_REGMAP_IRQ(AXP288, VBUS_FALL, 0, 2), + INIT_REGMAP_IRQ(AXP288, VBUS_RISE, 0, 3), + INIT_REGMAP_IRQ(AXP288, OV, 0, 4), - INIT_REGMAP_IRQ(AXP20X, CHARG_DONE, 1, 2), - INIT_REGMAP_IRQ(AXP20X, CHARG, 1, 3), + INIT_REGMAP_IRQ(AXP288, DONE, 1, 2), + INIT_REGMAP_IRQ(AXP288, CHARGING, 1, 3), INIT_REGMAP_IRQ(AXP288, SAFE_QUIT, 1, 4), INIT_REGMAP_IRQ(AXP288, SAFE_ENTER, 1, 5), - INIT_REGMAP_IRQ(AXP20X, BATT_REMOVAL, 1, 6), - INIT_REGMAP_IRQ(AXP20X, BATT_PLUGIN, 1, 7), + INIT_REGMAP_IRQ(AXP288, ABSENT, 1, 6), + INIT_REGMAP_IRQ(AXP288, APPEND, 1, 7), INIT_REGMAP_IRQ(AXP288, QWBTU, 2, 0), INIT_REGMAP_IRQ(AXP288, WBTU, 2, 1), INIT_REGMAP_IRQ(AXP288, QWBTO, 2, 2), - INIT_REGMAP_IRQ(AXP288, WBTU, 2, 3), + INIT_REGMAP_IRQ(AXP288, WBTO, 2, 3), INIT_REGMAP_IRQ(AXP288, QCBTU, 2, 4), INIT_REGMAP_IRQ(AXP288, CBTU, 2, 5), INIT_REGMAP_IRQ(AXP288, QCBTO, 2, 6), @@ -215,7 +215,7 @@ static const struct regmap_irq axp288_regmap_irqs[] = { INIT_REGMAP_IRQ(AXP288, POKS, 4, 4), INIT_REGMAP_IRQ(AXP288, POKN, 4, 5), INIT_REGMAP_IRQ(AXP288, POKP, 4, 6), - INIT_REGMAP_IRQ(AXP20X, TIMER, 4, 7), + INIT_REGMAP_IRQ(AXP288, TIMER, 4, 7), INIT_REGMAP_IRQ(AXP288, MV_CHNG, 5, 0), INIT_REGMAP_IRQ(AXP288, BC_USB_CHNG, 5, 1), -- cgit v1.2.3 From 7ca2b1c6724b150d8305ce06e4b07904ecbcb3fb Mon Sep 17 00:00:00 2001 From: Octavian Purdila Date: Tue, 18 Nov 2014 14:57:57 +0200 Subject: mfd: dln2: Fix _dln2_transfer return code If wait_for_completion_interruptible_timeout returns a positive value it may be propagated as the return value of _dln2_transfer. This contradicts the documentation of the function and exposes unnecessary internals to the callers. This patch makes sure to set the return value to 0 in that case. Reported-by: Julia Lawall Signed-off-by: Octavian Purdila Signed-off-by: Lee Jones --- drivers/mfd/dln2.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/dln2.c b/drivers/mfd/dln2.c index 9765a174d2c5..cf22841c1e3c 100644 --- a/drivers/mfd/dln2.c +++ b/drivers/mfd/dln2.c @@ -462,6 +462,8 @@ static int _dln2_transfer(struct dln2_dev *dln2, u16 handle, u16 cmd, if (!ret) ret = -ETIMEDOUT; goto out_free_rx_slot; + } else { + ret = 0; } if (dln2->disconnect) { @@ -484,10 +486,8 @@ static int _dln2_transfer(struct dln2_dev *dln2, u16 handle, u16 cmd, goto out_free_rx_slot; } - if (!ibuf) { - ret = 0; + if (!ibuf) goto out_free_rx_slot; - } if (*ibuf_len > rsp->hdr.size - sizeof(*rsp)) *ibuf_len = rsp->hdr.size - sizeof(*rsp); -- cgit v1.2.3 From 00ee7a37fdc3ed9bc6315f8af0270f2df55437d7 Mon Sep 17 00:00:00 2001 From: Octavian Purdila Date: Tue, 18 Nov 2014 14:57:59 +0200 Subject: mfd: dln2: Add a limit check for invalid echo The echo field in dln2_transfer_complete comes directly from an USB transfer and we should not trust it is valid. Reported-by: Dan Carpenter Signed-off-by: Octavian Purdila Signed-off-by: Lee Jones --- drivers/mfd/dln2.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers/mfd') diff --git a/drivers/mfd/dln2.c b/drivers/mfd/dln2.c index cf22841c1e3c..df2fda9cd3db 100644 --- a/drivers/mfd/dln2.c +++ b/drivers/mfd/dln2.c @@ -195,6 +195,9 @@ static bool dln2_transfer_complete(struct dln2_dev *dln2, struct urb *urb, struct dln2_rx_context *rxc; bool valid_slot = false; + if (rx_slot >= DLN2_MAX_RX_SLOTS) + goto out; + rxc = &rxs->slots[rx_slot]; /* @@ -210,6 +213,7 @@ static bool dln2_transfer_complete(struct dln2_dev *dln2, struct urb *urb, } spin_unlock(&rxs->lock); +out: if (!valid_slot) dev_warn(dev, "bad/late response %d/%d\n", handle, rx_slot); -- cgit v1.2.3 From 2fc2b4846c14c8c2d2c6e9114b4548f846521cfb Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 18 Nov 2014 14:58:00 +0200 Subject: mfd: dln2: A couple endian fixes Sparse catches a couple endian bugs. Signed-off-by: Dan Carpenter Acked-by: Octavian Purdila Signed-off-by: Lee Jones --- drivers/mfd/dln2.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/dln2.c b/drivers/mfd/dln2.c index df2fda9cd3db..559e6cc3e022 100644 --- a/drivers/mfd/dln2.c +++ b/drivers/mfd/dln2.c @@ -436,6 +436,7 @@ static int _dln2_transfer(struct dln2_dev *dln2, u16 handle, u16 cmd, struct device *dev = &dln2->interface->dev; const unsigned long timeout = DLN2_USB_TIMEOUT * HZ / 1000; struct dln2_mod_rx_slots *rxs = &dln2->mod_rx_slots[handle]; + int size; spin_lock(&dln2->disconnect_lock); if (!dln2->disconnect) @@ -477,8 +478,9 @@ static int _dln2_transfer(struct dln2_dev *dln2, u16 handle, u16 cmd, /* if we got here we know that the response header has been checked */ rsp = rxc->urb->transfer_buffer; + size = le16_to_cpu(rsp->hdr.size); - if (rsp->hdr.size < sizeof(*rsp)) { + if (size < sizeof(*rsp)) { ret = -EPROTO; goto out_free_rx_slot; } @@ -493,8 +495,8 @@ static int _dln2_transfer(struct dln2_dev *dln2, u16 handle, u16 cmd, if (!ibuf) goto out_free_rx_slot; - if (*ibuf_len > rsp->hdr.size - sizeof(*rsp)) - *ibuf_len = rsp->hdr.size - sizeof(*rsp); + if (*ibuf_len > size - sizeof(*rsp)) + *ibuf_len = size - sizeof(*rsp); memcpy(ibuf, rsp + 1, *ibuf_len); -- cgit v1.2.3 From 3bc2ee91a470c52fb3979c23c12d43283455f10d Mon Sep 17 00:00:00 2001 From: Chanwoo Choi Date: Tue, 18 Nov 2014 17:59:39 +0900 Subject: mfd: sec-core: Add support for S2MPS13 device This patch adds the support for Samsung S2MPS13 PMIC device to the sec-core MFD driver. The S2MPS13 is very similar with existing S2MPS14 and includes PMIC/ RTC/CLOCK devices. Signed-off-by: Chanwoo Choi Acked-by: Sangbeom Kim Signed-off-by: Lee Jones --- drivers/mfd/sec-core.c | 16 ++++++++++++++++ drivers/mfd/sec-irq.c | 23 +++++++++++++++++------ include/linux/mfd/samsung/core.h | 1 + 3 files changed, 34 insertions(+), 6 deletions(-) (limited to 'drivers/mfd') diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c index dba7e2b6f8e9..d086e8cee1d7 100644 --- a/drivers/mfd/sec-core.c +++ b/drivers/mfd/sec-core.c @@ -74,6 +74,15 @@ static const struct mfd_cell s2mps11_devs[] = { } }; +static const struct mfd_cell s2mps13_devs[] = { + { .name = "s2mps13-pmic", }, + { .name = "s2mps13-rtc", }, + { + .name = "s2mps13-clk", + .of_compatible = "samsung,s2mps13-clk", + }, +}; + static const struct mfd_cell s2mps14_devs[] = { { .name = "s2mps14-pmic", @@ -107,6 +116,9 @@ static const struct of_device_id sec_dt_match[] = { }, { .compatible = "samsung,s2mps11-pmic", .data = (void *)S2MPS11X, + }, { + .compatible = "samsung,s2mps13-pmic", + .data = (void *)S2MPS13X, }, { .compatible = "samsung,s2mps14-pmic", .data = (void *)S2MPS14X, @@ -378,6 +390,10 @@ static int sec_pmic_probe(struct i2c_client *i2c, sec_devs = s2mps11_devs; num_sec_devs = ARRAY_SIZE(s2mps11_devs); break; + case S2MPS13X: + sec_devs = s2mps13_devs; + num_sec_devs = ARRAY_SIZE(s2mps13_devs); + break; case S2MPS14X: sec_devs = s2mps14_devs; num_sec_devs = ARRAY_SIZE(s2mps14_devs); diff --git a/drivers/mfd/sec-irq.c b/drivers/mfd/sec-irq.c index f9a57869e3ec..ba86a918c2da 100644 --- a/drivers/mfd/sec-irq.c +++ b/drivers/mfd/sec-irq.c @@ -389,14 +389,22 @@ static const struct regmap_irq_chip s2mps11_irq_chip = { .ack_base = S2MPS11_REG_INT1, }; +#define S2MPS1X_IRQ_CHIP_COMMON_DATA \ + .irqs = s2mps14_irqs, \ + .num_irqs = ARRAY_SIZE(s2mps14_irqs), \ + .num_regs = 3, \ + .status_base = S2MPS14_REG_INT1, \ + .mask_base = S2MPS14_REG_INT1M, \ + .ack_base = S2MPS14_REG_INT1 \ + +static const struct regmap_irq_chip s2mps13_irq_chip = { + .name = "s2mps13", + S2MPS1X_IRQ_CHIP_COMMON_DATA, +}; + static const struct regmap_irq_chip s2mps14_irq_chip = { .name = "s2mps14", - .irqs = s2mps14_irqs, - .num_irqs = ARRAY_SIZE(s2mps14_irqs), - .num_regs = 3, - .status_base = S2MPS14_REG_INT1, - .mask_base = S2MPS14_REG_INT1M, - .ack_base = S2MPS14_REG_INT1, + S2MPS1X_IRQ_CHIP_COMMON_DATA, }; static const struct regmap_irq_chip s2mpu02_irq_chip = { @@ -452,6 +460,9 @@ int sec_irq_init(struct sec_pmic_dev *sec_pmic) case S2MPS11X: sec_irq_chip = &s2mps11_irq_chip; break; + case S2MPS13X: + sec_irq_chip = &s2mps13_irq_chip; + break; case S2MPS14X: sec_irq_chip = &s2mps14_irq_chip; break; diff --git a/include/linux/mfd/samsung/core.h b/include/linux/mfd/samsung/core.h index 1825edacbda7..0c0343e06ba6 100644 --- a/include/linux/mfd/samsung/core.h +++ b/include/linux/mfd/samsung/core.h @@ -41,6 +41,7 @@ enum sec_device_type { S5M8767X, S2MPA01, S2MPS11X, + S2MPS13X, S2MPS14X, S2MPU02, }; -- cgit v1.2.3 From 76b9840b24ae049b39f1b3cf0e49f21b7c41748f Mon Sep 17 00:00:00 2001 From: Chanwoo Choi Date: Tue, 18 Nov 2014 17:59:40 +0900 Subject: regulator: s2mps11: Add support S2MPS13 regulator device This patch adds S2MPS13 regulator device to existing S2MPS11 device driver. The S2MPS13 has just different number of regulators from S2MPS14. The S2MPS13 regulator device includes LDO[1-40] and BUCK[1-10]. Signed-off-by: Chanwoo Choi Acked-by: Sangbeom Kim Acked-by: Mark Brown Reviewed-by: Krzysztof Kozlowski Signed-off-by: Lee Jones --- drivers/mfd/sec-core.c | 13 +++ drivers/regulator/Kconfig | 10 +- drivers/regulator/s2mps11.c | 102 +++++++++++++++++++- include/linux/mfd/samsung/core.h | 1 + include/linux/mfd/samsung/s2mps13.h | 186 ++++++++++++++++++++++++++++++++++++ 5 files changed, 304 insertions(+), 8 deletions(-) create mode 100644 include/linux/mfd/samsung/s2mps13.h (limited to 'drivers/mfd') diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c index d086e8cee1d7..b39960532f76 100644 --- a/drivers/mfd/sec-core.c +++ b/drivers/mfd/sec-core.c @@ -27,6 +27,7 @@ #include #include #include +#include #include #include #include @@ -206,6 +207,15 @@ static const struct regmap_config s2mps11_regmap_config = { .cache_type = REGCACHE_FLAT, }; +static const struct regmap_config s2mps13_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = S2MPS13_REG_LDODSCH5, + .volatile_reg = s2mps11_volatile, + .cache_type = REGCACHE_FLAT, +}; + static const struct regmap_config s2mps14_regmap_config = { .reg_bits = 8, .val_bits = 8, @@ -337,6 +347,9 @@ static int sec_pmic_probe(struct i2c_client *i2c, case S2MPS11X: regmap = &s2mps11_regmap_config; break; + case S2MPS13X: + regmap = &s2mps13_regmap_config; + break; case S2MPS14X: regmap = &s2mps14_regmap_config; break; diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 55d7b7b0f2e0..5e061347be93 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -529,13 +529,13 @@ config REGULATOR_S2MPA01 via I2C bus. S2MPA01 has 10 Bucks and 26 LDO outputs. config REGULATOR_S2MPS11 - tristate "Samsung S2MPS11/S2MPS14/S2MPU02 voltage regulator" + tristate "Samsung S2MPS11/S2MPS13/S2MPS14/S2MPU02 voltage regulator" depends on MFD_SEC_CORE help - This driver supports a Samsung S2MPS11/S2MPS14/S2MPU02 voltage output - regulator via I2C bus. The chip is comprised of high efficient Buck - converters including Dual-Phase Buck converter, Buck-Boost converter, - various LDOs. + This driver supports a Samsung S2MPS11/S2MPS13/S2MPS14/S2MPU02 voltage + output regulator via I2C bus. The chip is comprised of high efficient + Buck converters including Dual-Phase Buck converter, Buck-Boost + converter, various LDOs. config REGULATOR_S5M8767 tristate "Samsung S5M8767A voltage regulator" diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c index adab82d5279f..738dc7763d47 100644 --- a/drivers/regulator/s2mps11.c +++ b/drivers/regulator/s2mps11.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include @@ -45,10 +46,10 @@ struct s2mps11_info { enum sec_device_type dev_type; /* - * One bit for each S2MPS14/S2MPU02 regulator whether the suspend mode - * was enabled. + * One bit for each S2MPS13/S2MPS14/S2MPU02 regulator whether + * the suspend mode was enabled. */ - unsigned long long s2mps14_suspend_state:35; + unsigned long long s2mps14_suspend_state:50; /* Array of size rdev_num with GPIO-s for external sleep control */ int *ext_control_gpio; @@ -369,12 +370,101 @@ static const struct regulator_desc s2mps11_regulators[] = { regulator_desc_s2mps11_buck6_10(10, MIN_750_MV, STEP_12_5_MV), }; +static struct regulator_ops s2mps14_reg_ops; + +#define regulator_desc_s2mps13_ldo(num, min, step, min_sel) { \ + .name = "LDO"#num, \ + .id = S2MPS13_LDO##num, \ + .ops = &s2mps14_reg_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = min, \ + .uV_step = step, \ + .linear_min_sel = min_sel, \ + .n_voltages = S2MPS14_LDO_N_VOLTAGES, \ + .vsel_reg = S2MPS13_REG_L1CTRL + num - 1, \ + .vsel_mask = S2MPS14_LDO_VSEL_MASK, \ + .enable_reg = S2MPS13_REG_L1CTRL + num - 1, \ + .enable_mask = S2MPS14_ENABLE_MASK \ +} + +#define regulator_desc_s2mps13_buck(num, min, step, min_sel) { \ + .name = "BUCK"#num, \ + .id = S2MPS13_BUCK##num, \ + .ops = &s2mps14_reg_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = min, \ + .uV_step = step, \ + .linear_min_sel = min_sel, \ + .n_voltages = S2MPS14_BUCK_N_VOLTAGES, \ + .ramp_delay = S2MPS13_BUCK_RAMP_DELAY, \ + .vsel_reg = S2MPS13_REG_B1OUT + (num - 1) * 2, \ + .vsel_mask = S2MPS14_BUCK_VSEL_MASK, \ + .enable_reg = S2MPS13_REG_B1CTRL + (num - 1) * 2, \ + .enable_mask = S2MPS14_ENABLE_MASK \ +} + +static const struct regulator_desc s2mps13_regulators[] = { + regulator_desc_s2mps13_ldo(1, MIN_800_MV, STEP_12_5_MV, 0x00), + regulator_desc_s2mps13_ldo(2, MIN_1400_MV, STEP_50_MV, 0x0C), + regulator_desc_s2mps13_ldo(3, MIN_1000_MV, STEP_25_MV, 0x08), + regulator_desc_s2mps13_ldo(4, MIN_800_MV, STEP_12_5_MV, 0x00), + regulator_desc_s2mps13_ldo(5, MIN_800_MV, STEP_12_5_MV, 0x00), + regulator_desc_s2mps13_ldo(6, MIN_800_MV, STEP_12_5_MV, 0x00), + regulator_desc_s2mps13_ldo(7, MIN_1000_MV, STEP_25_MV, 0x08), + regulator_desc_s2mps13_ldo(8, MIN_1000_MV, STEP_25_MV, 0x08), + regulator_desc_s2mps13_ldo(9, MIN_1000_MV, STEP_25_MV, 0x08), + regulator_desc_s2mps13_ldo(10, MIN_1400_MV, STEP_50_MV, 0x0C), + regulator_desc_s2mps13_ldo(11, MIN_800_MV, STEP_25_MV, 0x10), + regulator_desc_s2mps13_ldo(12, MIN_800_MV, STEP_25_MV, 0x10), + regulator_desc_s2mps13_ldo(13, MIN_800_MV, STEP_25_MV, 0x10), + regulator_desc_s2mps13_ldo(14, MIN_800_MV, STEP_12_5_MV, 0x00), + regulator_desc_s2mps13_ldo(15, MIN_800_MV, STEP_12_5_MV, 0x00), + regulator_desc_s2mps13_ldo(16, MIN_1400_MV, STEP_50_MV, 0x0C), + regulator_desc_s2mps13_ldo(17, MIN_1400_MV, STEP_50_MV, 0x0C), + regulator_desc_s2mps13_ldo(18, MIN_1000_MV, STEP_25_MV, 0x08), + regulator_desc_s2mps13_ldo(19, MIN_1000_MV, STEP_25_MV, 0x08), + regulator_desc_s2mps13_ldo(20, MIN_1400_MV, STEP_50_MV, 0x0C), + regulator_desc_s2mps13_ldo(21, MIN_1000_MV, STEP_25_MV, 0x08), + regulator_desc_s2mps13_ldo(22, MIN_1000_MV, STEP_25_MV, 0x08), + regulator_desc_s2mps13_ldo(23, MIN_800_MV, STEP_12_5_MV, 0x00), + regulator_desc_s2mps13_ldo(24, MIN_800_MV, STEP_12_5_MV, 0x00), + regulator_desc_s2mps13_ldo(25, MIN_1400_MV, STEP_50_MV, 0x0C), + regulator_desc_s2mps13_ldo(26, MIN_1400_MV, STEP_50_MV, 0x0C), + regulator_desc_s2mps13_ldo(27, MIN_1400_MV, STEP_50_MV, 0x0C), + regulator_desc_s2mps13_ldo(28, MIN_1000_MV, STEP_25_MV, 0x08), + regulator_desc_s2mps13_ldo(29, MIN_1400_MV, STEP_50_MV, 0x0C), + regulator_desc_s2mps13_ldo(30, MIN_1400_MV, STEP_50_MV, 0x0C), + regulator_desc_s2mps13_ldo(31, MIN_1000_MV, STEP_25_MV, 0x08), + regulator_desc_s2mps13_ldo(32, MIN_1000_MV, STEP_25_MV, 0x08), + regulator_desc_s2mps13_ldo(33, MIN_1400_MV, STEP_50_MV, 0x0C), + regulator_desc_s2mps13_ldo(34, MIN_1000_MV, STEP_25_MV, 0x08), + regulator_desc_s2mps13_ldo(35, MIN_1400_MV, STEP_50_MV, 0x0C), + regulator_desc_s2mps13_ldo(36, MIN_800_MV, STEP_12_5_MV, 0x00), + regulator_desc_s2mps13_ldo(37, MIN_1000_MV, STEP_25_MV, 0x08), + regulator_desc_s2mps13_ldo(38, MIN_1400_MV, STEP_50_MV, 0x0C), + regulator_desc_s2mps13_ldo(39, MIN_1000_MV, STEP_25_MV, 0x08), + regulator_desc_s2mps13_ldo(40, MIN_1400_MV, STEP_50_MV, 0x0C), + regulator_desc_s2mps13_buck(1, MIN_500_MV, STEP_6_25_MV, 0x10), + regulator_desc_s2mps13_buck(2, MIN_500_MV, STEP_6_25_MV, 0x10), + regulator_desc_s2mps13_buck(3, MIN_500_MV, STEP_6_25_MV, 0x10), + regulator_desc_s2mps13_buck(4, MIN_500_MV, STEP_6_25_MV, 0x10), + regulator_desc_s2mps13_buck(5, MIN_500_MV, STEP_6_25_MV, 0x10), + regulator_desc_s2mps13_buck(6, MIN_500_MV, STEP_6_25_MV, 0x10), + regulator_desc_s2mps13_buck(7, MIN_500_MV, STEP_6_25_MV, 0x10), + regulator_desc_s2mps13_buck(8, MIN_1000_MV, STEP_12_5_MV, 0x20), + regulator_desc_s2mps13_buck(9, MIN_1000_MV, STEP_12_5_MV, 0x20), + regulator_desc_s2mps13_buck(10, MIN_500_MV, STEP_6_25_MV, 0x10), +}; + static int s2mps14_regulator_enable(struct regulator_dev *rdev) { struct s2mps11_info *s2mps11 = rdev_get_drvdata(rdev); unsigned int val; switch (s2mps11->dev_type) { + case S2MPS13X: case S2MPS14X: if (s2mps11->s2mps14_suspend_state & (1 << rdev_get_id(rdev))) val = S2MPS14_ENABLE_SUSPEND; @@ -406,6 +496,7 @@ static int s2mps14_regulator_set_suspend_disable(struct regulator_dev *rdev) /* Below LDO should be always on or does not support suspend mode. */ switch (s2mps11->dev_type) { + case S2MPS13X: case S2MPS14X: switch (rdev_id) { case S2MPS14_LDO3: @@ -831,6 +922,10 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) s2mps11->rdev_num = ARRAY_SIZE(s2mps11_regulators); regulators = s2mps11_regulators; break; + case S2MPS13X: + s2mps11->rdev_num = ARRAY_SIZE(s2mps13_regulators); + regulators = s2mps13_regulators; + break; case S2MPS14X: s2mps11->rdev_num = ARRAY_SIZE(s2mps14_regulators); regulators = s2mps14_regulators; @@ -927,6 +1022,7 @@ out: static const struct platform_device_id s2mps11_pmic_id[] = { { "s2mps11-pmic", S2MPS11X}, + { "s2mps13-pmic", S2MPS13X}, { "s2mps14-pmic", S2MPS14X}, { "s2mpu02-pmic", S2MPU02}, { }, diff --git a/include/linux/mfd/samsung/core.h b/include/linux/mfd/samsung/core.h index 0c0343e06ba6..3fdb7cfbffb3 100644 --- a/include/linux/mfd/samsung/core.h +++ b/include/linux/mfd/samsung/core.h @@ -28,6 +28,7 @@ #define MIN_800_MV 800000 #define MIN_750_MV 750000 #define MIN_600_MV 600000 +#define MIN_500_MV 500000 /* Macros to represent steps for LDO/BUCK */ #define STEP_50_MV 50000 diff --git a/include/linux/mfd/samsung/s2mps13.h b/include/linux/mfd/samsung/s2mps13.h new file mode 100644 index 000000000000..ce5dda8958fe --- /dev/null +++ b/include/linux/mfd/samsung/s2mps13.h @@ -0,0 +1,186 @@ +/* + * s2mps13.h + * + * Copyright (c) 2014 Samsung Electronics Co., Ltd + * http://www.samsung.com + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + * This program is distributed in the hope that 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_MFD_S2MPS13_H +#define __LINUX_MFD_S2MPS13_H + +/* S2MPS13 registers */ +enum s2mps13_reg { + S2MPS13_REG_ID, + S2MPS13_REG_INT1, + S2MPS13_REG_INT2, + S2MPS13_REG_INT3, + S2MPS13_REG_INT1M, + S2MPS13_REG_INT2M, + S2MPS13_REG_INT3M, + S2MPS13_REG_ST1, + S2MPS13_REG_ST2, + S2MPS13_REG_PWRONSRC, + S2MPS13_REG_OFFSRC, + S2MPS13_REG_BU_CHG, + S2MPS13_REG_RTCCTRL, + S2MPS13_REG_CTRL1, + S2MPS13_REG_CTRL2, + S2MPS13_REG_RSVD1, + S2MPS13_REG_RSVD2, + S2MPS13_REG_RSVD3, + S2MPS13_REG_RSVD4, + S2MPS13_REG_RSVD5, + S2MPS13_REG_RSVD6, + S2MPS13_REG_CTRL3, + S2MPS13_REG_RSVD7, + S2MPS13_REG_RSVD8, + S2MPS13_REG_WRSTBI, + S2MPS13_REG_B1CTRL, + S2MPS13_REG_B1OUT, + S2MPS13_REG_B2CTRL, + S2MPS13_REG_B2OUT, + S2MPS13_REG_B3CTRL, + S2MPS13_REG_B3OUT, + S2MPS13_REG_B4CTRL, + S2MPS13_REG_B4OUT, + S2MPS13_REG_B5CTRL, + S2MPS13_REG_B5OUT, + S2MPS13_REG_B6CTRL, + S2MPS13_REG_B6OUT, + S2MPS13_REG_B7CTRL, + S2MPS13_REG_B7OUT, + S2MPS13_REG_B8CTRL, + S2MPS13_REG_B8OUT, + S2MPS13_REG_B9CTRL, + S2MPS13_REG_B9OUT, + S2MPS13_REG_B10CTRL, + S2MPS13_REG_B10OUT, + S2MPS13_REG_BB1CTRL, + S2MPS13_REG_BB1OUT, + S2MPS13_REG_BUCK_RAMP1, + S2MPS13_REG_BUCK_RAMP2, + S2MPS13_REG_LDO_DVS1, + S2MPS13_REG_LDO_DVS2, + S2MPS13_REG_LDO_DVS3, + S2MPS13_REG_B6OUT2, + S2MPS13_REG_L1CTRL, + S2MPS13_REG_L2CTRL, + S2MPS13_REG_L3CTRL, + S2MPS13_REG_L4CTRL, + S2MPS13_REG_L5CTRL, + S2MPS13_REG_L6CTRL, + S2MPS13_REG_L7CTRL, + S2MPS13_REG_L8CTRL, + S2MPS13_REG_L9CTRL, + S2MPS13_REG_L10CTRL, + S2MPS13_REG_L11CTRL, + S2MPS13_REG_L12CTRL, + S2MPS13_REG_L13CTRL, + S2MPS13_REG_L14CTRL, + S2MPS13_REG_L15CTRL, + S2MPS13_REG_L16CTRL, + S2MPS13_REG_L17CTRL, + S2MPS13_REG_L18CTRL, + S2MPS13_REG_L19CTRL, + S2MPS13_REG_L20CTRL, + S2MPS13_REG_L21CTRL, + S2MPS13_REG_L22CTRL, + S2MPS13_REG_L23CTRL, + S2MPS13_REG_L24CTRL, + S2MPS13_REG_L25CTRL, + S2MPS13_REG_L26CTRL, + S2MPS13_REG_L27CTRL, + S2MPS13_REG_L28CTRL, + S2MPS13_REG_L30CTRL, + S2MPS13_REG_L31CTRL, + S2MPS13_REG_L32CTRL, + S2MPS13_REG_L33CTRL, + S2MPS13_REG_L34CTRL, + S2MPS13_REG_L35CTRL, + S2MPS13_REG_L36CTRL, + S2MPS13_REG_L37CTRL, + S2MPS13_REG_L38CTRL, + S2MPS13_REG_L39CTRL, + S2MPS13_REG_L40CTRL, + S2MPS13_REG_LDODSCH1, + S2MPS13_REG_LDODSCH2, + S2MPS13_REG_LDODSCH3, + S2MPS13_REG_LDODSCH4, + S2MPS13_REG_LDODSCH5, +}; + +/* regulator ids */ +enum s2mps13_regulators { + S2MPS13_LDO1, + S2MPS13_LDO2, + S2MPS13_LDO3, + S2MPS13_LDO4, + S2MPS13_LDO5, + S2MPS13_LDO6, + S2MPS13_LDO7, + S2MPS13_LDO8, + S2MPS13_LDO9, + S2MPS13_LDO10, + S2MPS13_LDO11, + S2MPS13_LDO12, + S2MPS13_LDO13, + S2MPS13_LDO14, + S2MPS13_LDO15, + S2MPS13_LDO16, + S2MPS13_LDO17, + S2MPS13_LDO18, + S2MPS13_LDO19, + S2MPS13_LDO20, + S2MPS13_LDO21, + S2MPS13_LDO22, + S2MPS13_LDO23, + S2MPS13_LDO24, + S2MPS13_LDO25, + S2MPS13_LDO26, + S2MPS13_LDO27, + S2MPS13_LDO28, + S2MPS13_LDO29, + S2MPS13_LDO30, + S2MPS13_LDO31, + S2MPS13_LDO32, + S2MPS13_LDO33, + S2MPS13_LDO34, + S2MPS13_LDO35, + S2MPS13_LDO36, + S2MPS13_LDO37, + S2MPS13_LDO38, + S2MPS13_LDO39, + S2MPS13_LDO40, + S2MPS13_BUCK1, + S2MPS13_BUCK2, + S2MPS13_BUCK3, + S2MPS13_BUCK4, + S2MPS13_BUCK5, + S2MPS13_BUCK6, + S2MPS13_BUCK7, + S2MPS13_BUCK8, + S2MPS13_BUCK9, + S2MPS13_BUCK10, + + S2MPS13_REGULATOR_MAX, +}; + +/* + * Default ramp delay in uv/us. Datasheet says that ramp delay can be + * controlled however it does not specify which register is used for that. + * Let's assume that default value will be set. + */ +#define S2MPS13_BUCK_RAMP_DELAY 12500 + +#endif /* __LINUX_MFD_S2MPS13_H */ -- cgit v1.2.3