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author | Hans de Goede <hdegoede@redhat.com> | 2023-01-11 21:14:26 +0100 |
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committer | Hans de Goede <hdegoede@redhat.com> | 2023-01-12 20:10:31 +0100 |
commit | cf5ac2d45f6e4d11ad78e7b10ae9a4121ba5e995 (patch) | |
tree | e7b54653708b56c3e057319d1d1a201f05a5a843 /drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | |
parent | ccb32e2be14271a60e9ba89c6d5660cc9998773c (diff) |
platform/x86: int3472/discrete: Ensure the clk/power enable pins are in output mode
acpi_get_and_request_gpiod() does not take a gpio_lookup_flags argument
specifying that the pins direction should be initialized to a specific
value.
This means that in some cases the pins might be left in input mode, causing
the gpiod_set() calls made to enable the clk / regulator to not work.
One example of this problem is the clk-enable GPIO for the ov01a1s sensor
on a Dell Latitude 9420 being left in input mode causing the clk to
never get enabled.
Explicitly set the direction of the pins to output to fix this.
Fixes: 5de691bffe57 ("platform/x86: Add intel_skl_int3472 driver")
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Reviewed-by: Daniel Scally <djrscally@gmail.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://lore.kernel.org/r/20230111201426.947853-1-hdegoede@redhat.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c')
0 files changed, 0 insertions, 0 deletions