The TPS65217 chip is a power management IC for Portable Navigation Systems
and Tablet Computing devices. It contains the following components:
- Regulators
- White LED
- USB battery charger
This patch adds support for tps65217 mfd device. At this time only
the regulator functionality is made available.
Signed-off-by: AnilKumar Ch
---
drivers/mfd/Kconfig | 15 +++
drivers/mfd/Makefile |1 +
drivers/mfd/tps65217.c | 242 +
include/linux/mfd/tps65217.h | 275 ++
4 files changed, 533 insertions(+), 0 deletions(-)
create mode 100644 drivers/mfd/tps65217.c
create mode 100644 include/linux/mfd/tps65217.h
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index f1391c2..d2c55e8 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -142,6 +142,21 @@ config TPS6507X
This driver can also be built as a module. If so, the module
will be called tps6507x.
+config MFD_TPS65217
+ tristate "TPS65217 Power Management / White LED chips"
+ depends on I2C
+ select MFD_CORE
+ select REGMAP_I2C
+ help
+ If you say yes here you get support for the TPS65217 series of
+ Power Management / White LED chips.
+ These include voltage regulators, lithium ion/polymer battery
+ charger, wled and other features that are often used in portable
+ devices.
+
+ This driver can also be built as a module. If so, the module
+ will be called tps65217.
+
config MFD_TPS6586X
bool "TPS6586x Power Management chips"
depends on I2C=y && GPIOLIB && GENERIC_HARDIRQS
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index b2292eb..7a6d111 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -36,6 +36,7 @@ obj-$(CONFIG_MFD_WM8994) += wm8994-core.o wm8994-irq.o
obj-$(CONFIG_TPS6105X) += tps6105x.o
obj-$(CONFIG_TPS65010) += tps65010.o
obj-$(CONFIG_TPS6507X) += tps6507x.o
+obj-$(CONFIG_MFD_TPS65217) += tps65217.o
obj-$(CONFIG_MFD_TPS65910) += tps65910.o tps65910-irq.o
tps65912-objs := tps65912-core.o tps65912-irq.o
obj-$(CONFIG_MFD_TPS65912) += tps65912.o
diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c
new file mode 100644
index 000..f7d854e
--- /dev/null
+++ b/drivers/mfd/tps65217.c
@@ -0,0 +1,242 @@
+/*
+ * tps65217.c
+ *
+ * TPS65217 chip family multi-function driver
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.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 version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+#include
+#include
+
+/**
+ * tps65217_reg_read: Read a single tps65217 register.
+ *
+ * @tps: Device to read from.
+ * @reg: Register to read.
+ * @val: Contians the value
+ */
+int tps65217_reg_read(struct tps65217 *tps, unsigned int reg,
+ unsigned int *val)
+{
+ return regmap_read(tps->regmap, reg, val);
+}
+EXPORT_SYMBOL_GPL(tps65217_reg_read);
+
+/**
+ * tps65217_reg_write: Write a single tps65217 register.
+ *
+ * @tps65217: Device to write to.
+ * @reg: Register to write to.
+ * @val: Value to write.
+ * @level: Password protected level
+ */
+int tps65217_reg_write(struct tps65217 *tps, unsigned int reg,
+ unsigned int val, unsigned int level)
+{
+ int ret;
+ unsigned int xor_reg_val;
+
+ switch (level) {
+ case TPS65217_PROTECT_NONE:
+ return regmap_write(tps->regmap, reg, val);
+ case TPS65217_PROTECT_L1:
+ xor_reg_val = reg ^ TPS65217_PASSWORD_REGS_UNLOCK;
+ ret = regmap_write(tps->regmap, TPS65217_REG_PASSWORD,
+ xor_reg_val);
+ if (ret < 0)
+ return ret;
+
+ return regmap_write(tps->regmap, reg, val);
+ case TPS65217_PROTECT_L2:
+ xor_reg_val = reg ^ TPS65217_PASSWORD_REGS_UNLOCK;
+ ret = regmap_write(tps->regmap, TPS65217_REG_PASSWORD,
+ xor_reg_val);
+ if (ret < 0)
+ return ret;
+ ret = regmap_write(tps->regmap, reg, val);
+ if (ret < 0)
+ return ret;
+ ret = regmap_write(tps->regmap, TPS65217_REG_PASSWORD,
+ xor_reg_val);
+ if
