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author | Michael Walle <mwalle@kernel.org> | 2025-02-21 10:14:46 +0100 |
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committer | Vignesh Raghavendra <vigneshr@ti.com> | 2025-03-05 09:46:09 +0530 |
commit | 33bab9d84e52188cf73c3573fd7cf3ec0e01d007 (patch) | |
tree | 12a673e198bfffea3abe844e1506fbeca478cf01 /tools/perf/scripts/python/syscall-counts.py | |
parent | 638ab30ce4c63edae4934dcaa7a61f37b96efe6c (diff) |
arm64: dts: ti: k3-am62p: fix pinctrl settings
It appears that pinctrl-single is misused on this SoC to control both
the mux and the input and output and bias settings. This results in
non-working pinctrl configurations for GPIOs within the device tree.
This is what happens:
(1) During startup the pinctrl settings are applied according to the
device tree. I.e. the pin is configured as output and with
pull-ups enabled.
(2) During startup a device driver requests a GPIO.
(3) pinctrl-single is applying the default GPIO setting according to
the pinctrl-single,gpio-range property.
This would work as expected if the pinctrl-single is only controlling
the function mux, but it also controls the input/output buffer enable,
the pull-up and pull-down settings etc (pinctrl-single,function-mask
covers the entire pad setting instead of just the mux field).
Remove the pinctrl-single,gpio-range property, so that no settings are
applied during a gpio_request() call.
Fixes: d72d73a44c3c ("arm64: dts: ti: k3-am62p: Add gpio-ranges properties")
Signed-off-by: Michael Walle <mwalle@kernel.org>
Link: https://lore.kernel.org/r/20250221091447.595199-1-mwalle@kernel.org
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')
0 files changed, 0 insertions, 0 deletions