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Commit 6b57f20c authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/radeon/dpm: handle voltage info fetching on hawaii 

Some hawaii cards use a different method to fetch the
voltage info from the vbios.

bug:
https://bugs.freedesktop.org/show_bug.cgi?id=74250



Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent e9f274b2

drivers/gpu/drm/radeon/ci_dpm.c

+12 −1
Original line number Diff line number Diff line
@@ -940,7 +940,18 @@ static void ci_get_leakage_voltages(struct radeon_device *rdev) 
	pi->vddc_leakage.count = 0;

	pi->vddci_leakage.count = 0;



	if (radeon_atom_get_leakage_id_from_vbios(rdev, &leakage_id) == 0) {

	if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_EVV) {

		for (i = 0; i < CISLANDS_MAX_LEAKAGE_COUNT; i++) {

			virtual_voltage_id = ATOM_VIRTUAL_VOLTAGE_ID0 + i;

			if (radeon_atom_get_voltage_evv(rdev, virtual_voltage_id, &vddc) != 0)

				continue;

			if (vddc != 0 && vddc != virtual_voltage_id) {

				pi->vddc_leakage.actual_voltage[pi->vddc_leakage.count] = vddc;

				pi->vddc_leakage.leakage_id[pi->vddc_leakage.count] = virtual_voltage_id;

				pi->vddc_leakage.count++;

			}

		}

	} else if (radeon_atom_get_leakage_id_from_vbios(rdev, &leakage_id) == 0) {

		for (i = 0; i < CISLANDS_MAX_LEAKAGE_COUNT; i++) {

			virtual_voltage_id = ATOM_VIRTUAL_VOLTAGE_ID0 + i;

			if (radeon_atom_get_leakage_vddc_based_on_leakage_params(rdev, &vddc, &vddci,