Add core support for ROHM BD9576MUF and BD9573MUF PMICs which are
mainly used to power the R-Car series processors.

Signed-off-by: Matti Vaittinen <redacted>
---
Changes:
 - Comments fixed based on suggestions from Lee
 - Name of regulator cell changed as suggested by Lee
 - Renamed MFD cell variables for better readability
 - Aligned header definitions for better readability

 drivers/mfd/Kconfig              |  11 ++++
 drivers/mfd/Makefile             |   1 +
 drivers/mfd/rohm-bd9576.c        | 109 +++++++++++++++++++++++++++++++
 include/linux/mfd/rohm-bd957x.h  |  59 +++++++++++++++++
 include/linux/mfd/rohm-generic.h |   2 +
 5 files changed, 182 insertions(+)
 create mode 100644 drivers/mfd/rohm-bd9576.c
 create mode 100644 include/linux/mfd/rohm-bd957x.h

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index bdfce7b15621..53c7c96283bd 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig

@@ -1998,6 +1998,17 @@ config MFD_ROHM_BD71828
 	  Also included is a Coulomb counter, a real-time clock (RTC), and
 	  a 32.768 kHz clock gate.
 
+config MFD_ROHM_BD957XMUF
+	tristate "ROHM BD9576MUF and BD9573MUF Power Management ICs"
+	depends on I2C=y
+	depends on OF
+	select REGMAP_I2C
+	select MFD_CORE
+	help
+	  Select this option to get support for the ROHM BD9576MUF and
+	  BD9573MUF Power Management ICs. BD9576 and BD9573 are primarily
+	  designed to be used to power R-Car series processors.
+
 config MFD_STM32_LPTIMER
 	tristate "Support for STM32 Low-Power Timer"
 	depends on (ARCH_STM32 && OF) || COMPILE_TEST

diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 14fdb188af02..e58fae024bb2 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile

@@ -262,6 +262,7 @@ obj-$(CONFIG_RAVE_SP_CORE)	+= rave-sp.o
 obj-$(CONFIG_MFD_ROHM_BD70528)	+= rohm-bd70528.o
 obj-$(CONFIG_MFD_ROHM_BD71828)	+= rohm-bd71828.o
 obj-$(CONFIG_MFD_ROHM_BD718XX)	+= rohm-bd718x7.o
+obj-$(CONFIG_MFD_ROHM_BD957XMUF)	+= rohm-bd9576.o
 obj-$(CONFIG_MFD_STMFX) 	+= stmfx.o
 obj-$(CONFIG_MFD_KHADAS_MCU) 	+= khadas-mcu.o
 

diff --git a/drivers/mfd/rohm-bd9576.c b/drivers/mfd/rohm-bd9576.c
new file mode 100644
index 000000000000..efd439677c9e
--- /dev/null
+++ b/drivers/mfd/rohm-bd9576.c

@@ -0,0 +1,109 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2020 ROHM Semiconductors