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| author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-10-14 13:46:38 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-11-18 20:27:56 +0300 |
| commit | 919600c4b15eedb96d7a2734accc9e68203ff614 (patch) | |
| tree | e48d12e58ae87b0e03803e3638b0fee4604bfd11 /arch/arm/include | |
| parent | 6826bfd942bce8094121587bd6d91bb3a4e34cb2 (diff) | |
| download | linux-919600c4b15eedb96d7a2734accc9e68203ff614.tar.xz | |
pinctrl: intel: Set default bias in case no particular value given
[ Upstream commit f3c75e7a9349d1d33eb53ddc1b31640994969f73 ]
When GPIO library asks pin control to set the bias, it doesn't pass
any value of it and argument is considered boolean (and this is true
for ACPI GpioIo() / GpioInt() resources, by the way). Thus, individual
drivers must behave well, when they got the resistance value of 1 Ohm,
i.e. transforming it to sane default.
In case of Intel pin control hardware the 5 kOhm sounds plausible
because on one hand it's a minimum of resistors present in all
hardware generations and at the same time it's high enough to minimize
leakage current (will be only 200 uA with the above choice).
Fixes: e57725eabf87 ("pinctrl: intel: Add support for hardware debouncer")
Reported-by: Jamie McClymont <jamie@kwiius.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/arm/include')
0 files changed, 0 insertions, 0 deletions