Hi, This series adds support for GMT G762/G763. This work is based on a basic version for 2.6.31 kernel developed Olivier Mouchet for LaCie NAS. Updates have been performed to run on recent kernels. Support has been completed and additional features added: ability to configure various characteristics from .dts file, better initialization, alarms and error reporting support, gear mode, polarity, fan pulse per revolution, fan startup voltage control. The following detailed datasheet has been used as a basis for this work: http://natisbad.org/NAS/refs/GMT_EDS-762_763-080710-0.2.pdf The patch was developed for and tested against the GMT G762 fan controller used in a Netgear ReadyNAS Duo v2 (kirkwood 88F6282-based NAS). This is the main reason for the device tree bindings provided in first patch. The driver also support init via board file. The patches are against current ARM tree; tell me if you need me to rebase it against something else. Patch 2 and 3 provides documentation for the driver and DT bindings, respectively. As discussed in a previous email: - A macro is defined to pass values of platform data structure in board setup files. If one has a better approach ... - This v3 still has support for pwm1 sysfs entry in closed-loop mode. Guenter, if you still think it is a bad idea, I will change that in v4. note: this should not be an issue but this v3 is based on jcooper/mvebu/fixes branch. Comments welcome, Cheers, a+ Changes since v2: set ref_clk value to 32768 if not overloaded fixed multi-line comment format in g762.h add spaces between operators when missing check return value of i2c_smbus_{read,write}_byte_data() { } is not needed in single-statement conditionals introduced G762_ATTR_VAL() to allow sparse init of platform_data struct changed reference to linear mode for DC mode in doc Changes since v1 Changed author removed bad tabs Provide datasheet link w/o fud in g762 documentation removed documentation for removed fan_gear_mode sysfs entry removed tested-by from patch removed FSF address in header file removed useless include of <linux/slab.h> removed useless parenthesis against HZ in define use spaces around binary operators use i2c_smbus_{read,write}_byte_data() instead of g762_{read,write}_value() use return value of i2c_smbus_write_byte_data() use true for initializing boolean removed useless blank lines do not enforce single return point rule where less readable use dev_err() and dev_dbg() instead of dev_info() when it makes sense remove leading '&' for function passed as pointers allow passing parameter via platform_data struct for non-DT enabled boards set data->valid to false when config is modified s/linear/DC/ for mode (g762 datasheet uses linear) more tests on rpm_from_cnt() and cnt_from_rpm() formula dont overload Changes since v0 removed forward declaration use bool for valid field instead of bit field. protect macro args fixed typo in subject line Added mention for G763 support in Kconfig fixed typo in driver name in Kconfig do not use DRVNAME in i2c_device_id g762_id[] Following discussions, kept DEVICE_ATTR (i.e. no switch to SENSOR_DEVICE_ATTR) removed useless casts when flipping bit values Sanity check user input value (e.g. to prevent 256 to silenty become 0) Added extra lines for multi line comments when needed removed various testing knobs make removed knobs available via DT passed checkpatch script on the patch removed useless lock protection againt clk setting moved all setter at the beginning of the file removed bad (u16) casts in g762_write_value() calls Arnaud Ebalard (3): Add support for GMT G762/G763 PWM fan controller Add documentation for g762 driver Add DT bindings documentation for g762 driver Documentation/devicetree/bindings/hwmon/g762.txt | 58 ++ Documentation/hwmon/g762 | 64 ++ drivers/hwmon/Kconfig | 10 + drivers/hwmon/Makefile | 1 + drivers/hwmon/g762.c | 1179 ++++++++++++++++++++++ include/linux/platform_data/g762.h | 51 + 6 files changed, 1363 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/g762.txt create mode 100644 Documentation/hwmon/g762 create mode 100644 drivers/hwmon/g762.c create mode 100644 include/linux/platform_data/g762.h -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
