linux

iv/linux

History

Andy Shevchenko e8873c0afd pinctrl: intel: Actually disable Tx and Rx buffers on GPIO request

Mistakenly the buffers (input and output) become enabled together for a short
period of time during GPIO request. This is problematic, because instead of
initial motive to disable them in the commit af7e3eeb84e2
("pinctrl: intel: Disable input and output buffer when switching to GPIO"),
the driven value on the pin, which might be used as an IRQ line, brings
firmwares of some touch pads to an awkward state that needs a full power off
to recover. Fix this, as stated in the culprit commit, by disabling the buffers.

Fixes: af7e3eeb84e2 ("pinctrl: intel: Disable input and output buffer when switching to GPIO")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=210497
Reported-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20201208182403.40435-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

2020-12-09 09:08:18 +01:00

Kconfig

pinctrl: cherryview: Switch to use intel_pinctrl_get_soc_data()

2020-08-20 12:37:07 +03:00

Makefile

pinctrl: intel: Add Intel Emmitsburg pin controller support

2020-07-21 11:44:21 +03:00

pinctrl-baytrail.c

pinctrl: baytrail: Avoid clearing debounce value when turning it off

2020-11-16 12:07:57 +02:00

pinctrl-broxton.c

pinctrl: broxton: Provide Interrupt Status register offset