diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-18 09:05:48 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-02-18 09:05:48 -0800 |
commit | 5c2770079fb9b8c5bfb7113d9e76de66e77a0e24 (patch) | |
tree | c6b330ce5d8a00edfef2c4cc2a8ac1213fbb86f6 /drivers | |
parent | 9a8b2aa534f23a61a57385309667e42e96941116 (diff) | |
parent | 0a65fbf64dad890d9dd60ab1dc0ebdb9fb0a9e33 (diff) |
Merge tag 'mfd-for-linus-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones:
"Changes to existing drivers:
- fixr platform device collision; da9052, wm8994-core
- regmap configuration amendments; tps65218
- fix runtime PM deadlock; rtsx_usb
- remove unused/superfluous code; db8500-prcmu, omap-usb-host
- enable watchdog timer; lpc_sch
- add start/stop RX URBs helpers; dln2
- remove platform device (DT only); max77686, max77802
- support suspend and resume; dln2
- add Device Tree support; da9063
- extra error checking; intel_soc_pmic
- const'ify all the things; 88pm860x, hi6421-pmic, intel_soc_pmic,
max77686, lm3533, retu, pcf50633,
davinci_voicecodec, smsc-ece1099,
tps65218, mc13xxx, tps65217, twl-core,
twl6040
New drivers/supported devices:
- new driver for Richtek RT5033
- new driver for DA9150 Charger and FuelGauge
- new driver for Qualcomm Resource Power Manager (RPM)
- add support for the ir-clk into sun6i-prcm
- add support for FuelGauge into axp20x"
* tag 'mfd-for-linus-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (32 commits)
mfd: intel_soc_pmic: Add missing error check for devm_kzalloc
mfd: rtsx_usb: Defer autosuspend while card exists
mfd: devicetree: Add bindings for DA9063
mfd: da9063: Add device tree support
regulator: qcom-rpm: Add missing state flag in call to RPM
mfd: qcom-rpm: Driver for the Qualcomm RPM
mfd: devicetree: bindings: Add Qualcomm RPM DT binding
mfd: max77686/802: Remove support for board files
mfd: omap-usb-host: Remove some unused functions
mfd: twl6040: Constify struct regmap_config and reg_default array
mfd: twl-core: Constify struct regmap_config and reg_default array
mfd: tps65217: Constify struct regmap_config
mfd: mc13xxx: i2c/spi: Constify struct regmap_config
mfd: tps65218: Constify struct regmap_config
mfd: smsc-ece1099: Constify struct regmap_config
mfd: davinci_voicecodec: Constify struct regmap_config
mfd: pcf50633: Constify struct regmap_config
mfd: retu: Constify struct regmap_config
mfd: lm3533: Constify struct regmap_config
mfd: max77686: Constify struct regmap_config
...
Diffstat (limited to 'drivers')
32 files changed, 1312 insertions, 78 deletions
diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c index 3a2604580164..d2a85cde68da 100644 --- a/drivers/mfd/88pm860x-core.c +++ b/drivers/mfd/88pm860x-core.c @@ -1111,7 +1111,7 @@ static int verify_addr(struct i2c_client *i2c) return 0; } -static struct regmap_config pm860x_regmap_config = { +static const struct regmap_config pm860x_regmap_config = { .reg_bits = 8, .val_bits = 8, }; diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 2e6b7311fabc..38356e39adba 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -195,6 +195,18 @@ config MFD_DA9063 Additional drivers must be enabled in order to use the functionality of the device. +config MFD_DA9150 + tristate "Dialog Semiconductor DA9150 Charger Fuel-Gauge chip" + depends on I2C=y + select MFD_CORE + select REGMAP_I2C + select REGMAP_IRQ + help + This adds support for the DA9150 integrated charger and fuel-gauge + chip. This driver provides common support for accessing the device. + Additional drivers must be enabled in order to use the specific + features of the device. + config MFD_DLN2 tristate "Diolan DLN2 support" select MFD_CORE @@ -417,6 +429,7 @@ config MFD_MAX14577 config MFD_MAX77686 bool "Maxim Semiconductor MAX77686/802 PMIC Support" depends on I2C=y + depends on OF select MFD_CORE select REGMAP_I2C select REGMAP_IRQ @@ -589,6 +602,20 @@ config MFD_PM8921_CORE Say M here if you want to include support for PM8921 chip as a module. This will build a module called "pm8921-core". +config MFD_QCOM_RPM + tristate "Qualcomm Resource Power Manager (RPM)" + depends on ARCH_QCOM && OF + help + If you say yes to this option, support will be included for the + Resource Power Manager system found in the Qualcomm 8660, 8960 and + 8064 based devices. + + This is required to access many regulators, clocks and bus + frequencies controlled by the RPM on these devices. + + Say M here if you want to include support for the Qualcomm RPM as a + module. This will build a module called "qcom_rpm". + config MFD_SPMI_PMIC tristate "Qualcomm SPMI PMICs" depends on ARCH_QCOM || COMPILE_TEST @@ -623,6 +650,18 @@ config MFD_RTSX_PCI types of memory cards, such as Memory Stick, Memory Stick Pro, Secure Digital and MultiMediaCard. +config MFD_RT5033 + tristate "Richtek RT5033 Power Management IC" + depends on I2C=y + select MFD_CORE + select REGMAP_I2C + help + This driver provides for the Richtek RT5033 Power Management IC, + which includes the I2C driver and the Core APIs. This driver provides + common support for accessing the device. The device supports multiple + sub-devices like charger, fuel gauge, flash LED, current source, + LDO and Buck. + config MFD_RTSX_USB tristate "Realtek USB card reader" depends on USB diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile index 53467e211381..19f3d744e3bd 100644 --- a/drivers/mfd/Makefile +++ b/drivers/mfd/Makefile @@ -113,7 +113,7 @@ obj-$(CONFIG_MFD_DA9055) += da9055.o da9063-objs := da9063-core.o da9063-irq.o da9063-i2c.o obj-$(CONFIG_MFD_DA9063) += da9063.o - +obj-$(CONFIG_MFD_DA9150) += da9150-core.o obj-$(CONFIG_MFD_MAX14577) += max14577.o obj-$(CONFIG_MFD_MAX77686) += max77686.o obj-$(CONFIG_MFD_MAX77693) += max77693.o @@ -153,6 +153,7 @@ obj-$(CONFIG_MFD_SI476X_CORE) += si476x-core.o obj-$(CONFIG_MFD_CS5535) += cs5535-mfd.o obj-$(CONFIG_MFD_OMAP_USB_HOST) += omap-usb-host.o omap-usb-tll.o obj-$(CONFIG_MFD_PM8921_CORE) += pm8921-core.o ssbi.o +obj-$(CONFIG_MFD_QCOM_RPM) += qcom_rpm.o obj-$(CONFIG_MFD_SPMI_PMIC) += qcom-spmi-pmic.o obj-$(CONFIG_TPS65911_COMPARATOR) += tps65911-comparator.o obj-$(CONFIG_MFD_TPS65090) += tps65090.o @@ -176,6 +177,7 @@ 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 +obj-$(CONFIG_MFD_RT5033) += rt5033.o intel-soc-pmic-objs := intel_soc_pmic_core.o intel_soc_pmic_crc.o obj-$(CONFIG_INTEL_SOC_PMIC) += intel-soc-pmic.o diff --git a/drivers/mfd/da9063-core.c b/drivers/mfd/da9063-core.c index f38bc98a3c57..facd3610ac77 100644 --- a/drivers/mfd/da9063-core.c +++ b/drivers/mfd/da9063-core.c @@ -86,6 +86,7 @@ static const struct mfd_cell da9063_devs[] = { }, { .name = DA9063_DRVNAME_WATCHDOG, + .of_compatible = "dlg,da9063-watchdog", }, { .name = DA9063_DRVNAME_HWMON, @@ -101,6 +102,7 @@ static const struct mfd_cell da9063_devs[] = { .name = DA9063_DRVNAME_RTC, .num_resources = ARRAY_SIZE(da9063_rtc_resources), .resources = da9063_rtc_resources, + .of_compatible = "dlg,da9063-rtc", }, { .name = DA9063_DRVNAME_VIBRATION, diff --git a/drivers/mfd/da9063-i2c.c b/drivers/mfd/da9063-i2c.c index 21fd8d9a217b..6f3a7c0001f9 100644 --- a/drivers/mfd/da9063-i2c.c +++ b/drivers/mfd/da9063-i2c.c @@ -25,6 +25,9 @@ #include <linux/mfd/da9063/pdata.h> #include <linux/mfd/da9063/registers.h> +#include <linux/of.h> +#include <linux/regulator/of_regulator.h> + static const struct regmap_range da9063_ad_readable_ranges[] = { { .range_min = DA9063_REG_PAGE_CON, @@ -203,6 +206,11 @@ static struct regmap_config da9063_regmap_config = { .cache_type = REGCACHE_RBTREE, }; +static const struct of_device_id da9063_dt_ids[] = { + { .compatible = "dlg,da9063", }, + { } +}; +MODULE_DEVICE_TABLE(of, da9063_dt_ids); static int da9063_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { @@ -257,6 +265,7 @@ static struct i2c_driver da9063_i2c_driver = { .driver = { .name = "da9063", .owner = THIS_MODULE, + .of_match_table = of_match_ptr(da9063_dt_ids), }, .probe = da9063_i2c_probe, .remove = da9063_i2c_remove, diff --git a/drivers/mfd/da9150-core.c b/drivers/mfd/da9150-core.c new file mode 100644 index 000000000000..4d757b97ef9a --- /dev/null +++ b/drivers/mfd/da9150-core.c @@ -0,0 +1,413 @@ +/* + * DA9150 Core MFD Driver + * + * Copyright (c) 2014 Dialog Semiconductor + * + * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.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. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/i2c.h> +#include <linux/regmap.h> +#include <linux/slab.h> +#include <linux/irq.h> +#include <linux/interrupt.h> +#include <linux/mfd/core.h> +#include <linux/mfd/da9150/core.h> +#include <linux/mfd/da9150/registers.h> + +static bool da9150_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case DA9150_PAGE_CON: + case DA9150_STATUS_A: + case DA9150_STATUS_B: + case DA9150_STATUS_C: + case DA9150_STATUS_D: + case DA9150_STATUS_E: + case DA9150_STATUS_F: + case DA9150_STATUS_G: + case DA9150_STATUS_H: + case DA9150_STATUS_I: + case DA9150_STATUS_J: + case DA9150_STATUS_K: + case DA9150_STATUS_L: + case DA9150_STATUS_N: + case DA9150_FAULT_LOG_A: + case DA9150_FAULT_LOG_B: + case DA9150_EVENT_E: + case DA9150_EVENT_F: + case DA9150_EVENT_G: + case DA9150_EVENT_H: + case DA9150_CONTROL_B: + case DA9150_CONTROL_C: + case DA9150_GPADC_MAN: + case DA9150_GPADC_RES_A: + case DA9150_GPADC_RES_B: + case DA9150_ADETVB_CFG_C: + case DA9150_ADETD_STAT: + case DA9150_ADET_CMPSTAT: + case DA9150_ADET_CTRL_A: + case DA9150_PPR_TCTR_B: + case DA9150_COREBTLD_STAT_A: + case DA9150_CORE_DATA_A: + case DA9150_CORE_DATA_B: + case DA9150_CORE_DATA_C: + case DA9150_CORE_DATA_D: + case DA9150_CORE2WIRE_STAT_A: + case DA9150_FW_CTRL_C: + case DA9150_FG_CTRL_B: + case DA9150_FW_CTRL_B: + case DA9150_GPADC_CMAN: + case DA9150_GPADC_CRES_A: + case DA9150_GPADC_CRES_B: + case DA9150_CC_ICHG_RES_A: + case DA9150_CC_ICHG_RES_B: + case DA9150_CC_IAVG_RES_A: + case DA9150_CC_IAVG_RES_B: + case DA9150_TAUX_CTRL_A: + case DA9150_TAUX_VALUE_H: + case DA9150_TAUX_VALUE_L: + case DA9150_TBAT_RES_A: + case DA9150_TBAT_RES_B: + return true; + default: + return false; + } +} + +static const struct regmap_range_cfg da9150_range_cfg[] = { + { + .range_min = DA9150_PAGE_CON, + .range_max = DA9150_TBAT_RES_B, + .selector_reg = DA9150_PAGE_CON, + .selector_mask = DA9150_I2C_PAGE_MASK, + .selector_shift = DA9150_I2C_PAGE_SHIFT, + .window_start = 0, + .window_len = 256, + }, +}; + +static struct regmap_config da9150_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + .ranges = da9150_range_cfg, + .num_ranges = ARRAY_SIZE(da9150_range_cfg), + .max_register = DA9150_TBAT_RES_B, + + .cache_type = REGCACHE_RBTREE, + + .volatile_reg = da9150_volatile_reg, +}; + +u8 da9150_reg_read(struct da9150 *da9150, u16 reg) +{ + int val, ret; + + ret = regmap_read(da9150->regmap, reg, &val); + if (ret) + dev_err(da9150->dev, "Failed to read from reg 0x%x: %d\n", + reg, ret); + + return (u8) val; +} +EXPORT_SYMBOL_GPL(da9150_reg_read); + +void da9150_reg_write(struct da9150 *da9150, u16 reg, u8 val) +{ + int ret; + + ret = regmap_write(da9150->regmap, reg, val); + if (ret) + dev_err(da9150->dev, "Failed to write to reg 0x%x: %d\n", + reg, ret); +} +EXPORT_SYMBOL_GPL(da9150_reg_write); + +void da9150_set_bits(struct da9150 *da9150, u16 reg, u8 mask, u8 val) +{ + int ret; + + ret = regmap_update_bits(da9150->regmap, reg, mask, val); + if (ret) + dev_err(da9150->dev, "Failed to set bits in reg 0x%x: %d\n", + reg, ret); +} +EXPORT_SYMBOL_GPL(da9150_set_bits); + +void da9150_bulk_read(struct da9150 *da9150, u16 reg, int count, u8 *buf) +{ + int ret; + + ret = regmap_bulk_read(da9150->regmap, reg, buf, count); + if (ret) + dev_err(da9150->dev, "Failed to bulk read from reg 0x%x: %d\n", + reg, ret); +} +EXPORT_SYMBOL_GPL(da9150_bulk_read); + +void da9150_bulk_write(struct da9150 *da9150, u16 reg, int count, const u8 *buf) +{ + int ret; + + ret = regmap_raw_write(da9150->regmap, reg, buf, count); + if (ret) + dev_err(da9150->dev, "Failed to bulk write to reg 0x%x %d\n", + reg, ret); +} +EXPORT_SYMBOL_GPL(da9150_bulk_write); + +static struct regmap_irq da9150_irqs[] = { + [DA9150_IRQ_VBUS] = { + .reg_offset = 0, + .mask = DA9150_E_VBUS_MASK, + }, + [DA9150_IRQ_CHG] = { + .reg_offset = 0, + .mask = DA9150_E_CHG_MASK, + }, + [DA9150_IRQ_TCLASS] = { + .reg_offset = 0, + .mask = DA9150_E_TCLASS_MASK, + }, + [DA9150_IRQ_TJUNC] = { + .reg_offset = 0, + .mask = DA9150_E_TJUNC_MASK, + }, + [DA9150_IRQ_VFAULT] = { + .reg_offset = 0, + .mask = DA9150_E_VFAULT_MASK, + }, + [DA9150_IRQ_CONF] = { + .reg_offset = 1, + .mask = DA9150_E_CONF_MASK, + }, + [DA9150_IRQ_DAT] = { + .reg_offset = 1, + .mask = DA9150_E_DAT_MASK, + }, + [DA9150_IRQ_DTYPE] = { + .reg_offset = 1, + .mask = DA9150_E_DTYPE_MASK, + }, + [DA9150_IRQ_ID] = { + .reg_offset = 1, + .mask = DA9150_E_ID_MASK, + }, + [DA9150_IRQ_ADP] = { + .reg_offset = 1, + .mask = DA9150_E_ADP_MASK, + }, + [DA9150_IRQ_SESS_END] = { + .reg_offset = 1, + .mask = DA9150_E_SESS_END_MASK, + }, + [DA9150_IRQ_SESS_VLD] = { + .reg_offset = 1, + .mask = DA9150_E_SESS_VLD_MASK, + }, + [DA9150_IRQ_FG] = { + .reg_offset = 2, + .mask = DA9150_E_FG_MASK, + }, + [DA9150_IRQ_GP] = { + .reg_offset = 2, + .mask = DA9150_E_GP_MASK, + }, + [DA9150_IRQ_TBAT] = { + .reg_offset = 2, + .mask = DA9150_E_TBAT_MASK, + }, + [DA9150_IRQ_GPIOA] = { + .reg_offset = 2, + .mask = DA9150_E_GPIOA_MASK, + }, + [DA9150_IRQ_GPIOB] = { + .reg_offset = 2, + .mask = DA9150_E_GPIOB_MASK, + }, + [DA9150_IRQ_GPIOC] = { + .reg_offset = 2, + .mask = DA9150_E_GPIOC_MASK, + }, + [DA9150_IRQ_GPIOD] = { + .reg_offset = 2, + .mask = DA9150_E_GPIOD_MASK, + }, + [DA9150_IRQ_GPADC] = { + .reg_offset = 2, + .mask = DA9150_E_GPADC_MASK, + }, + [DA9150_IRQ_WKUP] = { + .reg_offset = 3, + .mask = DA9150_E_WKUP_MASK, + }, +}; + +static struct regmap_irq_chip da9150_regmap_irq_chip = { + .name = "da9150_irq", + .status_base = DA9150_EVENT_E, + .mask_base = DA9150_IRQ_MASK_E, + .ack_base = DA9150_EVENT_E, + .num_regs = DA9150_NUM_IRQ_REGS, + .irqs = da9150_irqs, + .num_irqs = ARRAY_SIZE(da9150_irqs), +}; + +static struct resource da9150_gpadc_resources[] = { + { + .name = "GPADC", + .start = DA9150_IRQ_GPADC, + .end = DA9150_IRQ_GPADC, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct resource da9150_charger_resources[] = { + { + .name = "CHG_STATUS", + .start = DA9150_IRQ_CHG, + .end = DA9150_IRQ_CHG, + .flags = IORESOURCE_IRQ, + }, + { + .name = "CHG_TJUNC", + .start = DA9150_IRQ_TJUNC, + .end = DA9150_IRQ_TJUNC, + .flags = IORESOURCE_IRQ, + }, + { + .name = "CHG_VFAULT", + .start = DA9150_IRQ_VFAULT, + .end = DA9150_IRQ_VFAULT, + .flags = IORESOURCE_IRQ, + }, + { + .name = "CHG_VBUS", + .start = DA9150_IRQ_VBUS, + .end = DA9150_IRQ_VBUS, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct mfd_cell da9150_devs[] = { + { + .name = "da9150-gpadc", + .of_compatible = "dlg,da9150-gpadc", + .resources = da9150_gpadc_resources, + .num_resources = ARRAY_SIZE(da9150_gpadc_resources), + }, + { + .name = "da9150-charger", + .of_compatible = "dlg,da9150-charger", + .resources = da9150_charger_resources, + .num_resources = ARRAY_SIZE(da9150_charger_resources), + }, +}; + +static int da9150_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct da9150 *da9150; + struct da9150_pdata *pdata = dev_get_platdata(&client->dev); + int ret; + + da9150 = devm_kzalloc(&client->dev, sizeof(*da9150), GFP_KERNEL); + if (!da9150) + return -ENOMEM; + + da9150->dev = &client->dev; + da9150->irq = client->irq; + i2c_set_clientdata(client, da9150); + + da9150->regmap = devm_regmap_init_i2c(client, &da9150_regmap_config); + if (IS_ERR(da9150->regmap)) { + ret = PTR_ERR(da9150->regmap); + dev_err(da9150->dev, "Failed to allocate register map: %d\n", + ret); + return ret; + } + + da9150->irq_base = pdata ? pdata->irq_base : -1; + + ret = regmap_add_irq_chip(da9150->regmap, da9150->irq, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + da9150->irq_base, &da9150_regmap_irq_chip, + &da9150->regmap_irq_data); + if (ret) + return ret; + + da9150->irq_base = regmap_irq_chip_get_base(da9150->regmap_irq_data); + enable_irq_wake(da9150->irq); + + ret = mfd_add_devices(da9150->dev, -1, da9150_devs, + ARRAY_SIZE(da9150_devs), NULL, + da9150->irq_base, NULL); + if (ret) { + dev_err(da9150->dev, "Failed to add child devices: %d\n", ret); + regmap_del_irq_chip(da9150->irq, da9150->regmap_irq_data); + return ret; + } + + return 0; +} + +static int da9150_remove(struct i2c_client *client) +{ + struct da9150 *da9150 = i2c_get_clientdata(client); + + regmap_del_irq_chip(da9150->irq, da9150->regmap_irq_data); + mfd_remove_devices(da9150->dev); + + return 0; +} + +static void da9150_shutdown(struct i2c_client *client) +{ + struct da9150 *da9150 = i2c_get_clientdata(client); + + /* Make sure we have a wakup source for the device */ + da9150_set_bits(da9150, DA9150_CONFIG_D, + DA9150_WKUP_PM_EN_MASK, + DA9150_WKUP_PM_EN_MASK); + + /* Set device to DISABLED mode */ + da9150_set_bits(da9150, DA9150_CONTROL_C, + DA9150_DISABLE_MASK, DA9150_DISABLE_MASK); +} + +static const struct i2c_device_id da9150_i2c_id[] = { + { "da9150", }, + { } +}; +MODULE_DEVICE_TABLE(i2c, da9150_i2c_id); + +static const struct of_device_id da9150_of_match[] = { + { .compatible = "dlg,da9150", }, + { } +}; +MODULE_DEVICE_TABLE(of, da9150_of_match); + +static struct i2c_driver da9150_driver = { + .driver = { + .name = "da9150", + .of_match_table = of_match_ptr(da9150_of_match), + }, + .probe = da9150_probe, + .remove = da9150_remove, + .shutdown = da9150_shutdown, + .id_table = da9150_i2c_id, +}; + +module_i2c_driver(da9150_driver); + +MODULE_DESCRIPTION("MFD Core Driver for DA9150"); +MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mfd/davinci_voicecodec.c b/drivers/mfd/davinci_voicecodec.c index c835e85539b2..9bbc642a7b9d 100644 --- a/drivers/mfd/davinci_voicecodec.c +++ b/drivers/mfd/davinci_voicecodec.c @@ -33,7 +33,7 @@ #include <linux/mfd/davinci_voicecodec.h> -static struct regmap_config davinci_vc_regmap = { +static const struct regmap_config davinci_vc_regmap = { .reg_bits = 32, .val_bits = 32, }; diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c index 16162bf43656..cc1a404328c2 100644 --- a/drivers/mfd/db8500-prcmu.c +++ b/drivers/mfd/db8500-prcmu.c @@ -675,15 +675,6 @@ bool prcmu_has_arm_maxopp(void) } /** - * prcmu_get_boot_status - PRCMU boot status checking - * Returns: the current PRCMU boot status - */ -int prcmu_get_boot_status(void) -{ - return readb(tcdm_base + PRCM_BOOT_STATUS); -} - -/** * prcmu_set_rc_a2p - This function is used to run few power state sequences * @val: Value to be set, i.e. transition requested * Returns: 0 on success, -EINVAL on invalid argument diff --git a/drivers/mfd/dln2.c b/drivers/mfd/dln2.c index 6d49685d4ee4..1be9bd1c046d 100644 --- a/drivers/mfd/dln2.c +++ b/drivers/mfd/dln2.c @@ -587,12 +587,19 @@ 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_stop_rx_urbs(struct dln2_dev *dln2) +{ + int i; + + for (i = 0; i < DLN2_MAX_URBS; i++) + usb_kill_urb(dln2->rx_urb[i]); +} + static void dln2_free(struct dln2_dev *dln2) { dln2_free_rx_urbs(dln2); @@ -604,9 +611,7 @@ 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); @@ -620,8 +625,19 @@ static int dln2_setup_rx_urbs(struct dln2_dev *dln2, 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); + return 0; +} + +static int dln2_start_rx_urbs(struct dln2_dev *dln2, gfp_t gfp) +{ + struct device *dev = &dln2->interface->dev; + int ret; + int i; + + for (i = 0; i < DLN2_MAX_URBS; i++) { + ret = usb_submit_urb(dln2->rx_urb[i], gfp); if (ret < 0) { dev_err(dev, "failed to submit RX URB: %d\n", ret); return ret; @@ -665,9 +681,8 @@ static const struct mfd_cell dln2_devs[] = { }, }; -static void dln2_disconnect(struct usb_interface *interface) +static void dln2_stop(struct dln2_dev *dln2) { - struct dln2_dev *dln2 = usb_get_intfdata(interface); int i, j; /* don't allow starting new transfers */ @@ -696,6 +711,15 @@ static void dln2_disconnect(struct usb_interface *interface) /* wait for transfers to end */ wait_event(dln2->disconnect_wq, !dln2->active_transfers); + dln2_stop_rx_urbs(dln2); +} + +static void dln2_disconnect(struct usb_interface *interface) +{ + struct dln2_dev *dln2 = usb_get_intfdata(interface); + + dln2_stop(dln2); + mfd_remove_devices(&interface->dev); dln2_free(dln2); @@ -738,28 +762,53 @@ static int dln2_probe(struct usb_interface *interface, ret = dln2_setup_rx_urbs(dln2, hostif); if (ret) - goto out_cleanup; + goto out_free; + + ret = dln2_start_rx_urbs(dln2, GFP_KERNEL); + if (ret) + goto out_stop_rx; ret = dln2_hw_init(dln2); if (ret < 0) { dev_err(dev, "failed to initialize hardware\n"); - goto out_cleanup; + goto out_stop_rx; } 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; + goto out_stop_rx; } return 0; -out_cleanup: +out_stop_rx: + dln2_stop_rx_urbs(dln2); + +out_free: dln2_free(dln2); return ret; } +static int dln2_suspend(struct usb_interface *iface, pm_message_t message) +{ + struct dln2_dev *dln2 = usb_get_intfdata(iface); + + dln2_stop(dln2); + + return 0; +} + +static int dln2_resume(struct usb_interface *iface) +{ + struct dln2_dev *dln2 = usb_get_intfdata(iface); + + dln2->disconnect = false; + + return dln2_start_rx_urbs(dln2, GFP_NOIO); +} + static const struct usb_device_id dln2_table[] = { { USB_DEVICE(0xa257, 0x2013) }, { } @@ -772,6 +821,8 @@ static struct usb_driver dln2_driver = { .probe = dln2_probe, .disconnect = dln2_disconnect, .id_table = dln2_table, + .suspend = dln2_suspend, + .resume = dln2_resume, }; module_usb_driver(dln2_driver); diff --git a/drivers/mfd/hi6421-pmic-core.c b/drivers/mfd/hi6421-pmic-core.c index 321a2656fd00..7210ae28bf81 100644 --- a/drivers/mfd/hi6421-pmic-core.c +++ b/drivers/mfd/hi6421-pmic-core.c @@ -35,7 +35,7 @@ static const struct mfd_cell hi6421_devs[] = { { .name = "hi6421-regulator", }, }; -static struct regmap_config hi6421_regmap_config = { +static const struct regmap_config hi6421_regmap_config = { .reg_bits = 32, .reg_stride = 4, .val_bits = 8, diff --git a/drivers/mfd/intel_soc_pmic_core.c b/drivers/mfd/intel_soc_pmic_core.c index df7b0642a5b4..80cef048b904 100644 --- a/drivers/mfd/intel_soc_pmic_core.c +++ b/drivers/mfd/intel_soc_pmic_core.c @@ -64,6 +64,9 @@ static int intel_soc_pmic_i2c_probe(struct i2c_client *i2c, config = (struct intel_soc_pmic_config *)id->driver_data; pmic = devm_kzalloc(dev, sizeof(*pmic), GFP_KERNEL); + if (!pmic) + return -ENOMEM; + dev_set_drvdata(dev, pmic); pmic->regmap = devm_regmap_init_i2c(i2c, config->regmap_config); diff --git a/drivers/mfd/intel_soc_pmic_core.h b/drivers/mfd/intel_soc_pmic_core.h index 33aacd9baddc..9498d6719847 100644 --- a/drivers/mfd/intel_soc_pmic_core.h +++ b/drivers/mfd/intel_soc_pmic_core.h @@ -23,7 +23,7 @@ struct intel_soc_pmic_config { unsigned long irq_flags; struct mfd_cell *cell_dev; int n_cell_devs; - struct regmap_config *regmap_config; + const struct regmap_config *regmap_config; struct regmap_irq_chip *irq_chip; }; diff --git a/drivers/mfd/intel_soc_pmic_crc.c b/drivers/mfd/intel_soc_pmic_crc.c index c85e2ecb868a..4cc1b324e971 100644 --- a/drivers/mfd/intel_soc_pmic_crc.c +++ b/drivers/mfd/intel_soc_pmic_crc.c @@ -111,7 +111,7 @@ static struct mfd_cell crystal_cove_dev[] = { }, }; -static struct regmap_config crystal_cove_regmap_config = { +static const struct regmap_config crystal_cove_regmap_config = { .reg_bits = 8, .val_bits = 8, diff --git a/drivers/mfd/lm3533-core.c b/drivers/mfd/lm3533-core.c index 8c29f7b27324..d42fbb667d8c 100644 --- a/drivers/mfd/lm3533-core.c +++ b/drivers/mfd/lm3533-core.c @@ -583,7 +583,7 @@ static bool lm3533_precious_register(struct device *dev, unsigned int reg) } } -static struct regmap_config regmap_config = { +static const struct regmap_config regmap_config = { .reg_bits = 8, .val_bits = 8, .max_register = LM3533_REG_MAX, diff --git a/drivers/mfd/lpc_sch.c b/drivers/mfd/lpc_sch.c index 5c38df35a84d..a56e4ba5227b 100644 --- a/drivers/mfd/lpc_sch.c +++ b/drivers/mfd/lpc_sch.c @@ -75,6 +75,7 @@ static struct lpc_sch_info sch_chipset_info[] = { [LP |