drm/radeon/dpm/ni: properly catch errors in dpm setup

We weren't properly catching errors in dpm_enable()
and dpm_set_power_state().

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/ni_dpm.c b/drivers/gpu/drm/radeon/ni_dpm.c
index 86f98db..8e6b23a 100644 (file)
--- a/drivers/gpu/drm/radeon/ni_dpm.c
+++ b/drivers/gpu/drm/radeon/ni_dpm.c
@@ -3517,6 +3517,7 @@ int ni_dpm_enable(struct radeon_device *rdev)
        struct rv7xx_power_info *pi = rv770_get_pi(rdev);
        struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);
        struct radeon_ps *boot_ps = rdev->pm.dpm.boot_ps;
+       int ret;
 
        if (pi->gfx_clock_gating)
                ni_cg_clockgating_default(rdev);
@@ -3528,10 +3529,15 @@ int ni_dpm_enable(struct radeon_device *rdev)
                ni_ls_clockgating_default(rdev);
        if (pi->voltage_control) {
                rv770_enable_voltage_control(rdev, true);
-               cypress_construct_voltage_tables(rdev);
+               ret = cypress_construct_voltage_tables(rdev);
+               if (ret)
+                       return ret;
+       }
+       if (eg_pi->dynamic_ac_timing) {
+               ret = ni_initialize_mc_reg_table(rdev);
+               if (ret)
+                       eg_pi->dynamic_ac_timing = false;
        }
-       if (eg_pi->dynamic_ac_timing)
-               ni_initialize_mc_reg_table(rdev);
        if (pi->dynamic_ss)
                cypress_enable_spread_spectrum(rdev, true);
        if (pi->thermal_protection)
@@ -3545,21 +3551,43 @@ int ni_dpm_enable(struct radeon_device *rdev)
        rv770_program_vc(rdev);
        if (pi->dynamic_pcie_gen2)
                ni_enable_dynamic_pcie_gen2(rdev, true);
-       if (rv770_upload_firmware(rdev))
-               return -EINVAL;
-       ni_process_firmware_header(rdev);
-       ni_initial_switch_from_arb_f0_to_f1(rdev);
-       ni_init_smc_table(rdev);
-       ni_init_smc_spll_table(rdev);
-       ni_init_arb_table_index(rdev);
-       if (eg_pi->dynamic_ac_timing)
-               ni_populate_mc_reg_table(rdev, boot_ps);
-       ni_initialize_smc_cac_tables(rdev);
-       ni_initialize_hardware_cac_manager(rdev);
-       ni_populate_smc_tdp_limits(rdev, boot_ps);
+       ret = rv770_upload_firmware(rdev);
+       if (ret)
+               return ret;
+       ret = ni_process_firmware_header(rdev);
+       if (ret)
+               return ret;
+       ret = ni_initial_switch_from_arb_f0_to_f1(rdev);
+       if (ret)
+               return ret;
+       ret = ni_init_smc_table(rdev);
+       if (ret)
+               return ret;
+       ret = ni_init_smc_spll_table(rdev);
+       if (ret)
+               return ret;
+       ret = ni_init_arb_table_index(rdev);
+       if (ret)
+               return ret;
+       if (eg_pi->dynamic_ac_timing) {
+               ret = ni_populate_mc_reg_table(rdev, boot_ps);
+               if (ret)
+                       return ret;
+       }
+       ret = ni_initialize_smc_cac_tables(rdev);
+       if (ret)
+               return ret;
+       ret = ni_initialize_hardware_cac_manager(rdev);
+       if (ret)
+               return ret;
+       ret = ni_populate_smc_tdp_limits(rdev, boot_ps);
+       if (ret)
+               return ret;
        ni_program_response_times(rdev);
        r7xx_start_smc(rdev);
-       cypress_notify_smc_display_change(rdev, false);
+       ret = cypress_notify_smc_display_change(rdev, false);
+       if (ret)
+               return ret;
        cypress_enable_sclk_control(rdev, true);
        if (eg_pi->memory_transition)
                cypress_enable_mclk_control(rdev, true);
@@ -3575,7 +3603,9 @@ int ni_dpm_enable(struct radeon_device *rdev)
            r600_is_internal_thermal_sensor(rdev->pm.int_thermal_type)) {
                PPSMC_Result result;
 
-               rv770_set_thermal_temperature_range(rdev, R600_TEMP_RANGE_MIN, 0xff * 1000);
+               ret = rv770_set_thermal_temperature_range(rdev, R600_TEMP_RANGE_MIN, 0xff * 1000);
+               if (ret)
+                       return ret;
                rdev->irq.dpm_thermal = true;
                radeon_irq_set(rdev);
                result = rv770_send_msg_to_smc(rdev, PPSMC_MSG_EnableThermalInterrupt);
@@ -3632,11 +3662,20 @@ void ni_dpm_disable(struct radeon_device *rdev)
 int ni_power_control_set_level(struct radeon_device *rdev)
 {
        struct radeon_ps *new_ps = rdev->pm.dpm.requested_ps;
+       int ret;
 
-       ni_restrict_performance_levels_before_switch(rdev);
-       rv770_halt_smc(rdev);
-       ni_populate_smc_tdp_limits(rdev, new_ps);
-       rv770_resume_smc(rdev);
+       ret = ni_restrict_performance_levels_before_switch(rdev);
+       if (ret)
+               return ret;
+       ret = rv770_halt_smc(rdev);
+       if (ret)
+               return ret;
+       ret = ni_populate_smc_tdp_limits(rdev, new_ps);
+       if (ret)
+               return ret;
+       ret = rv770_resume_smc(rdev);
+       if (ret)
+               return ret;
        rv770_set_sw_state(rdev);
 
        return 0;
@@ -3662,29 +3701,54 @@ int ni_dpm_set_power_state(struct radeon_device *rdev)
        struct radeon_ps *old_ps = &eg_pi->current_rps;
        int ret;
 
-       ni_restrict_performance_levels_before_switch(rdev);
+       ret = ni_restrict_performance_levels_before_switch(rdev);
+       if (ret)
+               return ret;
        rv770_set_uvd_clock_before_set_eng_clock(rdev, new_ps, old_ps);
-       ni_enable_power_containment(rdev, new_ps, false);
-       ni_enable_smc_cac(rdev, new_ps, false);
-       rv770_halt_smc(rdev);
+       ret = ni_enable_power_containment(rdev, new_ps, false);
+       if (ret)
+               return ret;
+       ret = ni_enable_smc_cac(rdev, new_ps, false);
+       if (ret)
+               return ret;
+       ret = rv770_halt_smc(rdev);
+       if (ret)
+               return ret;
        if (eg_pi->smu_uvd_hs)
                btc_notify_uvd_to_smc(rdev, new_ps);
-       ni_upload_sw_state(rdev, new_ps);
-       if (eg_pi->dynamic_ac_timing)
-               ni_upload_mc_reg_table(rdev, new_ps);
+       ret = ni_upload_sw_state(rdev, new_ps);
+       if (ret)
+               return ret;
+       if (eg_pi->dynamic_ac_timing) {
+               ret = ni_upload_mc_reg_table(rdev, new_ps);
+               if (ret)
+                       return ret;
+       }
        ret = ni_program_memory_timing_parameters(rdev, new_ps);
        if (ret)
                return ret;
-       ni_populate_smc_tdp_limits(rdev, new_ps);
-       rv770_resume_smc(rdev);
-       rv770_set_sw_state(rdev);
+       ret = ni_populate_smc_tdp_limits(rdev, new_ps);
+       if (ret)
+               return ret;
+       ret = rv770_resume_smc(rdev);
+       if (ret)
+               return ret;
+       ret = rv770_set_sw_state(rdev);
+       if (ret)
+               return ret;
        rv770_set_uvd_clock_after_set_eng_clock(rdev, new_ps, old_ps);
-       ni_enable_smc_cac(rdev, new_ps, true);
-       ni_enable_power_containment(rdev, new_ps, true);
+       ret = ni_enable_smc_cac(rdev, new_ps, true);
+       if (ret)
+               return ret;
+       ret = ni_enable_power_containment(rdev, new_ps, true);
+       if (ret)
+               return ret;
 
 #if 0
        /* XXX */
-       ni_unrestrict_performance_levels_after_switch(rdev);
+       ret = ni_unrestrict_performance_levels_after_switch(rdev);
+       if (ret)
+               return ret;
 #endif
 
        return 0;