drm/radeon/kms: dynclks fixes

- only r4xx/r5xx/rs6xx/rs740 have clock gating atom table,
so disable it on r6xx.  it's already disabled on r7xx
- check to make sure the clock_gating hook exists before
calling it.  This avoids a segfault on asics without
that function.
- remove unused static power management function.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

3 files changed, 5 insertions, 13 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index d758b1ffb74..3f3c7a2169f 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -549,7 +549,7 @@ static struct radeon_asic r600_asic = {
         .set_memory_clock = &radeon_atom_set_memory_clock,
         .get_pcie_lanes = NULL,
         .set_pcie_lanes = NULL,
-        .set_clock_gating = &radeon_atom_set_clock_gating,
+        .set_clock_gating = NULL,
         .set_surface_reg = r600_set_surface_reg,
         .clear_surface_reg = r600_clear_surface_reg,
         .bandwidth_update = &rv515_bandwidth_update,
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index b55012fedb9..c3198453528 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -1780,16 +1780,6 @@ void radeon_atom_set_clock_gating(struct radeon_device *rdev, int enable)
         atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
 }
 
-void radeon_atom_static_pwrmgt_setup(struct radeon_device *rdev, int enable)
-{
-        ENABLE_ASIC_STATIC_PWR_MGT_PS_ALLOCATION args;
-        int index = GetIndexIntoMasterTable(COMMAND, EnableASIC_StaticPwrMgt);
-
-        args.ucEnable = enable;
-
-        atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
-}
-
 uint32_t radeon_atom_get_engine_clock(struct radeon_device *rdev)
 {
         GET_ENGINE_CLOCK_PS_ALLOCATION args;
diff --git a/drivers/gpu/drm/radeon/radeon_clocks.c b/drivers/gpu/drm/radeon/radeon_clocks.c
index 73c4405bf42..3ec94a0d310 100644
--- a/drivers/gpu/drm/radeon/radeon_clocks.c
+++ b/drivers/gpu/drm/radeon/radeon_clocks.c
@@ -846,8 +846,10 @@ int radeon_static_clocks_init(struct drm_device *dev)
         /* XXX make sure engine is idle */
 
         if (radeon_dynclks != -1) {
-                if (radeon_dynclks)
-                        radeon_set_clock_gating(rdev, 1);
+                if (radeon_dynclks) {
+                        if (rdev->asic->set_clock_gating)
+                                radeon_set_clock_gating(rdev, 1);
+                }
         }
         radeon_apply_clock_quirks(rdev);
         return 0;