Merge tag 'mfd-next-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd

Pull MFD updates from Lee Jones:
 "New Drivers
   - Add support for USART SPI to AT91*

  New Functionality
   - Add support for Audio CODECs to motorola-cpcap

  Fix-ups
   - DT documentation fix-ups; atmel-usart
   - Staticise functions/structs; spi-at91-usart, arizona-core
   - Constify; ti-lmu
   - Fix memory leaks; menelaus
   - Change device 'wake-up' status; ti_am335x_tscadc, max8997
   - Power Management (suspend/resume) semantic changes; ti_am335x_adc, cros_ec, max8997
   - SPDX churn; sec-core (+ headers), max* (+ headers), intel* (+ headers),
   - Trivial (whitespace, email addresses, alphabetisise); Kconfig, adp5520, intel_soc_pmic_*
   - Build as module; sec-irq
   - Use new %pOFn printk format for device_node.name; max77620
   - Remove unused code; madera
   - Use generic MACROs; intel_msic, intel_soc_pmic_crc
   - Move to GPIOD; ti-lmu
   - Use managed resources; ti-lmu

  Bug Fixes
   - Add missing headers; at91-usart
   - Prevent device from entering low-power mode; arizona-core
   - Poll for BOOT_DONE to avoid still-booting NACK; madera-core
   - Prevent ADC read from shutting down device; mc13xxx-core"

* tag 'mfd-next-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (45 commits)
  mfd: cros_ec: Avoid unneeded internal declaration warning
  mfd: ti-lmu: Use of_device_get_match_data() helper
  mfd: ti-lmu: Use managed resource for everything
  mfd: ti-lmu: Switch to GPIOD
  mfd: ti-lmu: constify mfd_cell tables
  mfd: max8997: Disable interrupt handling for suspend/resume cycle
  mfd: max8997: Enale irq-wakeup unconditionally
  mfd: arizona: Make array mclk_name static, shrinks object size
  MAINTAINERS: Add myself as designated reviewer of Intel MFD PMIC
  mfd: Convert Intel PMIC drivers to use SPDX identifier 1;5201;0c Reduce size of duplicated comments by switching to use SPDX identifier.
  mfd: Sort headers alphabetically for Intel PMIC drivers
  mfd: intel_soc_pmic_bxtwc: Chain power button IRQs as well
  mfd: intel_soc_pmic_crc: Use REGMAP_IRQ_REG() macro
  mfd: intel_soc_pmic_crc: Use DEFINE_RES_IRQ_NAMED() macro
  mfd: intel_msic: Use DEFINE_RES_IRQ() macro
  mfd: motorola-cpcap: Add audio-codec support
  mfd: mc13xxx-core: Fix PMIC shutdown when reading ADC values
  mfd: madera: Remove unused forward reference
  mfd: max77620: Convert to using %pOFn instead of device_node.name
  mfd: madera: Don't use regmap_read_poll_timeout to poll for BOOT_DONE
  ...

1 files changed, 21 insertions, 5 deletions

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 11841f4b7b2b..8c5dfdce4326 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -99,6 +99,15 @@ config MFD_AAT2870_CORE
 	  additional drivers must be enabled in order to use the
 	  functionality of the device.
 
+config MFD_AT91_USART
+	tristate "AT91 USART Driver"
+	select MFD_CORE
+	help
+	  Select this to get support for AT91 USART IP. This is a wrapper
+	  over at91-usart-serial driver and usart-spi-driver. Only one function
+	  can be used at a time. The choice is done at boot time by the probe
+	  function of this MFD driver according to a device tree property.
+
 config MFD_ATMEL_FLEXCOM
 	tristate "Atmel Flexcom (Flexible Serial Communication Unit)"
 	select MFD_CORE
@@ -1023,16 +1032,23 @@ config MFD_RN5T618
 	  functionality of the device.
 
 config MFD_SEC_CORE
-	bool "SAMSUNG Electronics PMIC Series Support"
+	tristate "SAMSUNG Electronics PMIC Series Support"
 	depends on I2C=y
 	select MFD_CORE
 	select REGMAP_I2C
 	select REGMAP_IRQ
 	help
-	 Support for the Samsung Electronics MFD series.
-	 This driver provides common support for accessing the device,
-	 additional drivers must be enabled in order to use the functionality
-	 of the device
+	  Support for the Samsung Electronics PMIC devices coming
+	  usually along with Samsung Exynos SoC chipset.
+	  This driver provides common support for accessing the device,
+	  additional drivers must be enabled in order to use the functionality
+	  of the device
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called sec-core.
+	  Have in mind that important core drivers (like regulators) depend
+	  on this driver so building this as a module might require proper
+	  initial ramdisk or might not boot up as well in certain scenarios.
 
 config MFD_SI476X_CORE
 	tristate "Silicon Laboratories 4761/64/68 AM/FM radio."