linux/drivers/i2c
Austin Christ 71fbafcc45 i2c: qup: Correct duty cycle for FM and FM+
The I2C spec UM10204 Rev. 6 specifies the following timings.

           Standard      Fast Mode     Fast Mode Plus
SCL low    4.7us         1.3us         0.5us
SCL high   4.0us         0.6us         0.26us

This results in a 33%/66% duty cycle as opposed to the 50%/50% duty cycle
used for Standard-mode.

Add High Time Divider settings to correct duty cycle for FM(400kHz) and
FM+(1MHz).

Signed-off-by: Austin Christ <austinwc@codeaurora.org>
Reviewed-by: Sricharan R <sricharan@codeaurora.org>
Reviewed-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-05-29 19:53:03 +02:00
..
algos i2c: algo-bit: init the bus to a known state 2017-12-31 00:16:37 +01:00
busses i2c: qup: Correct duty cycle for FM and FM+ 2018-05-29 19:53:03 +02:00
muxes i2c: mux: gpio: move header to platform_data 2018-05-17 16:27:52 +02:00
i2c-boardinfo.c i2c: i2c-boardinfo: fix memory leaks on devinfo 2017-11-27 19:14:29 +01:00
i2c-core-acpi.c i2c: core: ACPI: Log device not acking errors at dbg loglevel 2018-04-30 10:53:31 +02:00
i2c-core-base.c i2c: Retain info->of_node in i2c_new_device() 2018-05-22 13:40:25 +02:00
i2c-core-of.c i2c: Export of_i2c_get_board_info() 2018-05-22 13:42:16 +02:00
i2c-core-slave.c i2c: break out slave support into separate file 2017-05-31 21:01:03 +02:00
i2c-core-smbus.c i2c: core: smbus: fix a potential missing-check bug 2018-05-17 15:40:12 +02:00
i2c-core.h i2c: make i2c_check_addr_validity() static 2018-03-24 14:07:23 +01:00
i2c-dev.c i2c: dev: prevent ZERO_SIZE_PTR deref in i2cdev_ioctl_rdwr() 2018-04-27 14:04:10 +02:00
i2c-mux.c i2c: mux: only print failure message on error 2017-05-15 18:49:11 +02:00
i2c-slave-eeprom.c
i2c-smbus.c i2c: i2c-smbus: add of_i2c_setup_smbus_alert 2017-10-28 23:42:47 +02:00
i2c-stub.c i2c: stub: fix build warning regression 2017-06-15 23:22:11 +02:00
Kconfig Merge branch 'i2c/for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2016-12-15 12:56:35 -08:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00