On Wed, Jun 15, 2016 at 8:36 PM, Lee Jones [off-list ref] wrote:

On Wed, 15 Jun 2016, Chen-Yu Tsai wrote:

quoted

The AC100 is a multifunction device with an audio codec subsystem and
an RTC subsystem. These two subsystems share a common register space
and host interface.

Signed-off-by: Chen-Yu Tsai <redacted>
---

Change log?

Change log was in the cover letter. Changes were the addition of the
codec related register macros and regmap ranges.

quoted

 drivers/mfd/Kconfig       |  10 +++
 drivers/mfd/Makefile      |   2 +
 drivers/mfd/ac100.c       | 135 +++++++++++++++++++++++++++++++++++
 include/linux/mfd/ac100.h | 176 ++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 323 insertions(+)
 create mode 100644 drivers/mfd/ac100.c
 create mode 100644 include/linux/mfd/ac100.h

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 1bcf601de5bc..bd83849a0c8d 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig

@@ -101,6 +101,16 @@ config MFD_BCM590XX
      help
        Support for the BCM590xx PMUs from Broadcom

+config MFD_AC100
+     tristate "X-Powers AC100"
+     select MFD_CORE
+     depends on SUNXI_RSB
+     help
+       If you say Y here you get support for the X-Powers AC100 audio codec
+       IC.
+       This driver include only the core APIs. You have to select individual
+       components like codecs or RTC under the corresponding menus.
+
 config MFD_AXP20X
      tristate
      select MFD_CORE

diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 42a66e19e191..60f9a6b0557c 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile

@@ -113,6 +113,8 @@ obj-$(CONFIG_PMIC_DA9052) += da9052-irq.o
 obj-$(CONFIG_PMIC_DA9052)    += da9052-core.o
 obj-$(CONFIG_MFD_DA9052_SPI) += da9052-spi.o
 obj-$(CONFIG_MFD_DA9052_I2C) += da9052-i2c.o
+
+obj-$(CONFIG_MFD_AC100)              += ac100.o
 obj-$(CONFIG_MFD_AXP20X)     += axp20x.o
 obj-$(CONFIG_MFD_AXP20X_I2C) += axp20x-i2c.o
 obj-$(CONFIG_MFD_AXP20X_RSB) += axp20x-rsb.o

diff --git a/drivers/mfd/ac100.c b/drivers/mfd/ac100.c
new file mode 100644
index 000000000000..15d24fa77771
--- /dev/null
+++ b/drivers/mfd/ac100.c

@@ -0,0 +1,135 @@
+/*
+ * ac100.c - MFD core driver for X-Powers' AC100 Audio Codec IC

Nit: Drop the filename here.

Apart from that:
  Acked-by: Lee Jones [off-list ref]

Thanks.
ChenYu