From: Alexander Müller serveralex@gmail.com

If we end up with no power states, don't look up current vddc.

fixes: https://bugs.freedesktop.org/show_bug.cgi?id=44130

agd5f: fix patch formatting

Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/radeon_atombios.c | 6 +++++- 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index dc7c751..a9ce094 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -2595,7 +2595,11 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)

rdev->pm.current_power_state_index = rdev->pm.default_power_state_index; rdev->pm.current_clock_mode_index = 0; - rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage; + if (rdev->pm.default_power_state_index >= 0) + rdev->pm.current_vddc = + rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage; + else + rdev->pm.current_vddc = 0; }

void radeon_atom_set_clock_gating(struct radeon_device *rdev, int enable)