linux/drivers/i2c, branch v4.11

i2c: mux: pca954x: Add missing pca9546 definition to chip_desc

2017-03-24T11:22:18Z

The spec for the pca9546 was missing. This chip is the same as the pca9545 except that it lacks interrupt lines. While the i2c_device_id table mapped the pca9546 to the pca9545 definition the compatible table did not. Signed-off-by: Mike Looijmans Signed-off-by: Peter Rosin

Revert "i2c: mux: pca954x: Add ACPI support for pca954x"

2017-03-23T21:12:22Z

In ACPI world any ID should be carefully chosen and registered officially. The commit bbf9d262a147 seems did a wrong assumption because PCA is the registered PNP ID for "PHILIPS BU ADD ON CARD". I'm pretty sure this prefix has nothing to do with the driver in question. Moreover, newer ACPI specification has a support of _DSD method and special device IDs to allow drivers be enumerated via compatible string. The slight change to support this kind of enumeration will be added in sequential patch against pca954x.c. Revert the commit bbf9d262a147 for good. Cc: Tin Huynh Signed-off-by: Andy Shevchenko Signed-off-by: Peter Rosin

Revert "i2c: copy device properties when using i2c_register_board_info()"

2017-03-09T15:41:48Z

This reverts commit b0c1e95ab44feaad8831f2c06a3473c974003b49. It contains a flaw and the next version has more features added which makes me want to move it to the next cycle. Signed-off-by: Wolfram Sang

Merge branch 'i2c-mux/for-current' of https://github.com/peda-r/i2c-mux into i2c/for-current

2017-03-09T15:34:41Z

Revert "i2c: add missing of_node_put in i2c_mux_del_adapters"

2017-03-09T15:33:50Z

This reverts commit 02dbfa5e5583523035f05636c614a0eca77f1aab. I grabbed the wrong version from the list and will pull the proper one from Peter Rosin's mux tree. Signed-off-by: Wolfram Sang

i2c: exynos5: Avoid transaction timeouts due TRANSFER_DONE_AUTO not set

2017-03-09T14:50:16Z

After commit 7999eecb7e56 ("i2c: exynos5: fix arbitration lost handling"), some I2C transactions are failing because the TRANSFER_DONE_AUTO field is not set in the I2C_TRANS_STATUS register so the i2c->status value is left to -EINVAL causing the i2c->msg_complete completion to never be signaled. For example, when reading the time of an I2C rtc on an Exynos5800 machine: $ cat /sys/class/rtc/rtc0/time [ 25.924594] exynos5-hsi2c 12e10000.i2c: rx timeout [ 65.028365] max77686-rtc max77802-rtc: Fail to read time reg(-22) cat: /sys/class/rtc/rtc0/time: Invalid argument The Exynos5422 manual states clearly that most I2C_TRANS_STATUS reg bits (including TRANSFER_DONE_AUTO) are cleared after the register is read. So reading has side effects and should only be done if HSI2C_INT_I2C was set. Fixes: 7999eecb7e56 ("i2c: exynos5: fix arbitration lost handling") Signed-off-by: Javier Martinez Canillas Reviewed-by: Andrzej Hajda Signed-off-by: Wolfram Sang

i2c: designware: add reset interface

2017-03-08T17:15:18Z

Some platforms like hi3660 need do reset first to allow accessing registers Signed-off-by: Zhangfei Gao Reviewed-by: Andy Shevchenko Tested-by: Ramiro Oliveira Acked-by: Jarkko Nikula Signed-off-by: Wolfram Sang

i2c: meson: fix wrong variable usage in meson_i2c_put_data

2017-03-08T17:06:47Z

Most likely a copy & paste error. Signed-off-by: Heiner Kallweit Acked-by: Jerome Brunet Signed-off-by: Wolfram Sang Fixes: 30021e3707a7 ("i2c: add support for Amlogic Meson I2C controller")

i2c: copy device properties when using i2c_register_board_info()

2017-03-08T17:05:09Z

This will allow marking device property lists as __initdata, the same as board info structures themselves. Signed-off-by: Dmitry Torokhov Signed-off-by: Wolfram Sang

i2c: m65xx: drop superfluous quirk structure

2017-03-08T17:03:41Z

All length fields in Linux I2C are u16, so a HW length limitation of 16 bit lengths is not a limitation. Remove the quirk structure. Tested-by: Jun Gao Signed-off-by: Wolfram Sang