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| author | Abel Vesa <abel.vesa@oss.qualcomm.com> | 2026-08-25 14:41:31 +0300 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2026-09-03 15:46:56 -0500 |
| commit | 028f86457e822ab9de5b0d6d23efddc1b8b54ae1 (patch) | |
| tree | 3e792906847d87218ba77ae31471a0f23c1845e8 /tools/perf/scripts/python | |
| parent | 854fc493df555479d73623e87ce2d8233c32b6bc (diff) | |
PCI/pwrctrl: tc9563: Allow RESX reset assertion to sleep
The RESX GPIO may be provided by a sleeping GPIO controller, such as an I2C
or SPI I/O expander. Calling gpiod_set_value() for such a GPIO triggers the
following warning:
WARNING: ... drivers/gpio/gpiolib.c:4030 at gpiod_set_value()
The TC9563 power-on and power-off callbacks already sleep while enabling or
disabling regulators and while waiting for oscillator stabilization. Use
gpiod_set_value_cansleep() for RESX so it can be driven without triggering
the warning.
Fixes: 4c9c7be47310 ("PCI: pwrctrl: Add power control driver for TC9563")
Signed-off-by: Abel Vesa <abel.vesa@oss.qualcomm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260825-pci-pwrctl-tc9563-use-cansleep-for-resx-v1-1-0dbe7cfd8200@oss.qualcomm.com
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions