On 31/03/14 08:13, Stefan Roese wrote:
On 30.03.2014 21:42, Jonathan Cameron wrote:
On 16/03/14 00:25, Hartmut Knaack wrote:
Jonathan Cameron schrieb:
This simple driver is ready to move out of staging.
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxxx>
Acked-by: Stefan Roese <sr@xxxxxxx>
Stefan, there are some 'what is going on?' questions in here you might
want to answer!
I'll give it a try.
---
drivers/iio/adc/Kconfig | 8 +
drivers/iio/adc/Makefile | 1 +
drivers/iio/adc/spear_adc.c | 405
++++++++++++++++++++++++++++++++++++
drivers/staging/iio/adc/Kconfig | 8 -
drivers/staging/iio/adc/Makefile | 1 -
drivers/staging/iio/adc/spear_adc.c | 405
------------------------------------
6 files changed, 414 insertions(+), 414 deletions(-)
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 5553206..2e3e1b0 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -164,6 +164,14 @@ config NAU7802
To compile this driver as a module, choose M here: the
s>> module will be called nau7802.
+config SPEAR_ADC
+ tristate "ST SPEAr ADC"
+ depends on PLAT_SPEAR || COMPILE_TEST
+ depends on HAS_IOMEM
+ help
+ Say yes here to build support for the integrated ADC inside the
+ ST SPEAr SoC. Provides direct access via sysfs.
+
config TI_ADC081C
tristate "Texas Instruments ADC081C021/027"
depends on I2C
diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile
index 89f1216..8378fb2 100644
--- a/drivers/iio/adc/Makefile
+++ b/drivers/iio/adc/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_MAX1363) += max1363.o
obj-$(CONFIG_MCP320X) += mcp320x.o
obj-$(CONFIG_MCP3422) += mcp3422.o
obj-$(CONFIG_NAU7802) += nau7802.o
+obj-$(CONFIG_SPEAR_ADC) += spear_adc.o
obj-$(CONFIG_TI_ADC081C) += ti-adc081c.o
obj-$(CONFIG_TI_AM335X_ADC) += ti_am335x_adc.o
obj-$(CONFIG_TWL6030_GPADC) += twl6030-gpadc.o
diff --git a/drivers/iio/adc/spear_adc.c b/drivers/iio/adc/spear_adc.c
new file mode 100644
index 0000000..18a0a40
--- /dev/null
+++ b/drivers/iio/adc/spear_adc.c
@@ -0,0 +1,405 @@
+/*
+ * ST SPEAr ADC driver
+ *
+ * Copyright 2012 Stefan Roese <sr@xxxxxxx>
I found a datasheet at
http://www.st.com/st-web-ui/static/active/en/resource/technical/document/reference_manual/DM00034813.pdf
THis is one of a number I think.. Not sure which parts will work out of
the box
with this driver though... Stefan? What was it written against?
I wrote and tested this driver for the SPEAr600 in 2011/2012. The manual mentioned above didn't exist at that time. I used one called "UM510_rev3.0.pdf" from Feb 2011. If interested I can send you the manual I used at that time.
I don't have access to the SPEAr600 hardware anymore. I'm afraid but I can't be of much help here.
I'm tempted to say that, given it worked for stefan back then, we do what
non functional clean ups make sense and push the driver out of staging whilst
avoiding the issues highlighted by the 'interesting' datasheets.
Either that, or if someone else wants to take on getting clarifications from
ST on how it actually works, that is fine by me.
J
Thanks,
Stefan
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