Ard Biesheuvel 9d64084330 i2c: designware: don't infer timings described by ACPI from clock rate ... Commit bd698d24b1 ("i2c: designware: Get selected speed mode sda-hold-time via ACPI") updated the logic that reads the timing parameters for various I2C bus rates from the DSDT, to only read the timing parameters for the currently selected mode. This causes a WARN_ON() splat on platforms that legally omit the clock frequency from the ACPI description, because in the new situation, the core I2C designware driver still accesses the fields in the driver struct that we no longer populate, and proceeds to calculate them from the clock frequency. Since the clock frequency is unspecified, the driver complains loudly using a WARN_ON(). So revert back to the old situation, where the struct fields for all timings are populated, but retain the new logic which chooses the SDA hold time from the timing mode that is currently in use. Fixes: bd698d24b1 ("i2c: designware: Get selected speed mode ...") Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reported-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>		2017-05-19 14:36:24 +02:00
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algos	i2c: algo-bit: declare i2c_bit_quirk_no_clk_stretch as static	2016-05-11 17:16:30 +02:00
busses	i2c: designware: don't infer timings described by ACPI from clock rate	2017-05-19 14:36:24 +02:00
muxes	i2c: mux: reg: rename label to indicate what it does	2017-05-15 18:49:10 +02:00
i2c-boardinfo.c	i2c: allow attaching IRQ resources to i2c_board_info	2017-04-01 09:36:19 -07:00
i2c-core.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2017-05-03 12:38:20 -07:00
i2c-core.h	i2c: remove FSF address	2014-11-07 18:35:33 +01:00
i2c-dev.c	i2c: fix kernel memory disclosure in dev interface	2017-01-12 20:06:10 +01:00
i2c-mux.c	i2c: mux: only print failure message on error	2017-05-15 18:49:11 +02:00
i2c-slave-eeprom.c	i2c: Drop owner assignment from i2c_driver	2015-08-10 08:37:35 +02:00
i2c-smbus.c	i2c: use an IRQ to report Host Notify events, not alert	2016-11-24 16:22:06 +01:00
i2c-stub.c	i2c: i2c-stub: sort includes	2016-02-20 23:33:39 +01:00
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	i2c: slave-eeprom: add eeprom simulator driver	2014-12-11 22:25:54 +01:00