drm/radeon: comment out some currently unused 7xx dpm code

Keep it around for reference.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/rv770_dpm.c

@@ -231,6 +231,7 @@ u8 rv770_get_seq_value(struct radeon_device *rdev,
 		MC_CG_SEQ_DRAMCONF_S0 : MC_CG_SEQ_DRAMCONF_S1;
 }
 
+#if 0
 int rv770_read_smc_soft_register(struct radeon_device *rdev,
 				 u16 reg_offset, u32 *value)
 {
@@ -240,6 +241,7 @@ int rv770_read_smc_soft_register(struct radeon_device *rdev,
 					 pi->soft_regs_start + reg_offset,
 					 value, pi->sram_end);
 }
+#endif
 
 int rv770_write_smc_soft_register(struct radeon_device *rdev,
 				  u16 reg_offset, u32 value)
@@ -2075,6 +2077,7 @@ int rv770_dpm_set_power_state(struct radeon_device *rdev)
 	return 0;
 }
 
+#if 0
 void rv770_dpm_reset_asic(struct radeon_device *rdev)
 {
 	struct rv7xx_power_info *pi = rv770_get_pi(rdev);
@@ -2087,6 +2090,7 @@ void rv770_dpm_reset_asic(struct radeon_device *rdev)
 	if (pi->dcodt)
 		rv770_program_dcodt_after_state_switch(rdev, boot_ps, boot_ps);
 }
+#endif
 
 void rv770_dpm_setup_asic(struct radeon_device *rdev)
 {

drivers/gpu/drm/radeon/rv770_dpm.h

@@ -278,8 +278,6 @@ void rv770_set_uvd_clock_after_set_eng_clock(struct radeon_device *rdev,
 void rv770_get_engine_memory_ss(struct radeon_device *rdev);
 
 /* smc */
-int rv770_read_smc_soft_register(struct radeon_device *rdev,
-				 u16 reg_offset, u32 *value);
 int rv770_write_smc_soft_register(struct radeon_device *rdev,
 				  u16 reg_offset, u32 value);