[patch added to 3.12-stable] drm/radeon/si/dpm: fix phase shedding setup

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From: Alex Deucher <alexander.deucher@xxxxxxx>

This patch has been added to the 3.12 stable tree. If you have any
objections, please let us know.

===============

commit 427920292b00474d978d632bc03a8e4e50029af3 upstream.

Used the wrong index to setup the phase shedding mask.

Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
 drivers/gpu/drm/radeon/si_dpm.c       | 2 +-
 drivers/gpu/drm/radeon/sislands_smc.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c
index db9c7d26ed16..c1281fc39040 100644
--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -3968,7 +3968,7 @@ static int si_populate_smc_voltage_tables(struct radeon_device *rdev,
 						      &rdev->pm.dpm.dyn_state.phase_shedding_limits_table)) {
 			si_populate_smc_voltage_table(rdev, &si_pi->vddc_phase_shed_table, table);
 
-			table->phaseMaskTable.lowMask[SISLANDS_SMC_VOLTAGEMASK_VDDC] =
+			table->phaseMaskTable.lowMask[SISLANDS_SMC_VOLTAGEMASK_VDDC_PHASE_SHEDDING] =
 				cpu_to_be32(si_pi->vddc_phase_shed_table.mask_low);
 
 			si_write_smc_soft_register(rdev, SI_SMC_SOFT_REGISTER_phase_shedding_delay,
diff --git a/drivers/gpu/drm/radeon/sislands_smc.h b/drivers/gpu/drm/radeon/sislands_smc.h
index 5578e9837026..0c3f65dfa743 100644
--- a/drivers/gpu/drm/radeon/sislands_smc.h
+++ b/drivers/gpu/drm/radeon/sislands_smc.h
@@ -194,6 +194,7 @@ typedef struct SISLANDS_SMC_SWSTATE SISLANDS_SMC_SWSTATE;
 #define SISLANDS_SMC_VOLTAGEMASK_VDDC  0
 #define SISLANDS_SMC_VOLTAGEMASK_MVDD  1
 #define SISLANDS_SMC_VOLTAGEMASK_VDDCI 2
+#define SISLANDS_SMC_VOLTAGEMASK_VDDC_PHASE_SHEDDING 3
 #define SISLANDS_SMC_VOLTAGEMASK_MAX   4
 
 struct SISLANDS_SMC_VOLTAGEMASKTABLE
-- 
2.10.1

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