On Friday, May 30, 2014 02:00:39 PM Lan Tianyu wrote: > On 05/20/2014 08:59 PM, Lan Tianyu wrote: > > ACPI 5.0 spec(5.5.2.4.5) defines GenericSerialBus(i2c, spi, uart) operation > > region. It allows ACPI aml code able to access such kind of devices to > > implement some ACPI standard method. > > > > On the Asus T100TA, Bios use GenericSerialBus operation region to access > > i2c device to get battery info. So battery function depends on the I2C > > operation region support. Here is the bug link. > > https://bugzilla.kernel.org/show_bug.cgi?id=69011 > > > > Hi Wolfram: > Since this version resolved all comments, it's ok for you? BTW, patches [2-3/5] are already queued up for 3.16 as they are independent of the i2c changes. > > > Change since V2: > > Drop patchs of adding I2C smbus quick read/write and word/block > > process call functions because not find machines supporting such protocols > > so far and can't test these functions. > > Merge patchs of "I2C ACPI related code clear up" and "Add CONFIG_I2C_ACPI > > config" > > Patch 2: Add acpi_bus_detach_private_data() function to detach data from > > ACPI handle and replace ACPI_ERROR() with acpi_handle_debug() to avoid some redundant > > error log. > > > > Change since V1: > > Fix some code style issues. Change prefix i2c_acpi to acpi_i2c. > > Move ACPI related code in the i2c core to i2c-acpi.c. Add CONFIG_I2C_ACPI > > and make i2c core built-in when it's set to avoid i2c ACPI operation region > > being removed. > > > > Lan Tianyu (5): > > ACPICA: Export acpi_buffer_to_resource symbol > > ACPI: Add acpi_bus_attach_private_data() to facilitate to attach data > > to ACPI handle > > ACPI/Thermal: Use acpi_bus_attach_private_data() to attach private > > data > > I2C/ACPI: Add i2c ACPI operation region support > > I2C/ACPI: Clean up I2C ACPI code and Add CONFIG_I2C_ACPI config > > > > drivers/acpi/acpica/rscreate.c | 1 + > > drivers/acpi/bus.c | 28 +++- > > drivers/acpi/thermal.c | 11 +- > > drivers/i2c/Kconfig | 18 +- > > drivers/i2c/Makefile | 5 +- > > drivers/i2c/i2c-acpi.c | 362 +++++++++++++++++++++++++++++++++++++++++ > > drivers/i2c/i2c-core.c | 97 +---------- > > include/acpi/acpi_bus.h | 2 + > > include/linux/acpi.h | 11 ++ > > include/linux/i2c.h | 12 ++ > > 10 files changed, 439 insertions(+), 108 deletions(-) > > create mode 100644 drivers/i2c/i2c-acpi.c > > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
