[PATCH] drm/amd/powerplay: add fan control mode interface for baffin

[Alex Deucher]

From: Rex Zhu <rex....@amd.com>

Add interface for manual fan control.

Signed-off-by: Rex Zhu <Rex.Zhu at amd.com>
Reviewed-by: Alex Deucher <alexander.deucher at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 .../gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c  | 26 ++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c 
b/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
index 85a3341..fd29c56 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c
@@ -4871,6 +4871,30 @@ static int polaris10_print_clock_levels(struct pp_hwmgr 
*hwmgr,
        return size;
 }

+static int polaris10_set_fan_control_mode(struct pp_hwmgr *hwmgr, uint32_t 
mode)
+{
+       if (mode) {
+               /* stop auto-manage */
+               if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps,
+                               PHM_PlatformCaps_MicrocodeFanControl))
+                       polaris10_fan_ctrl_stop_smc_fan_control(hwmgr);
+               polaris10_fan_ctrl_set_static_mode(hwmgr, mode);
+       } else
+               /* restart auto-manage */
+               polaris10_fan_ctrl_reset_fan_speed_to_default(hwmgr);
+
+       return 0;
+}
+
+static int polaris10_get_fan_control_mode(struct pp_hwmgr *hwmgr)
+{
+       if (hwmgr->fan_ctrl_is_in_default_mode)
+               return hwmgr->fan_ctrl_default_mode;
+       else
+               return PHM_READ_VFPF_INDIRECT_FIELD(hwmgr->device, 
CGS_IND_REG__SMC,
+                               CG_FDO_CTRL2, FDO_PWM_MODE);
+}
+
 static const struct pp_hwmgr_func polaris10_hwmgr_funcs = {
        .backend_init = &polaris10_hwmgr_backend_init,
        .backend_fini = &polaris10_hwmgr_backend_fini,
@@ -4907,6 +4931,8 @@ static const struct pp_hwmgr_func polaris10_hwmgr_funcs = 
{
        .register_internal_thermal_interrupt = 
polaris10_register_internal_thermal_interrupt,
        .check_smc_update_required_for_display_configuration = 
polaris10_check_smc_update_required_for_display_configuration,
        .check_states_equal = polaris10_check_states_equal,
+       .set_fan_control_mode = polaris10_set_fan_control_mode,
+       .get_fan_control_mode = polaris10_get_fan_control_mode,
        .get_pp_table = polaris10_get_pp_table,
        .set_pp_table = polaris10_set_pp_table,
        .force_clock_level = polaris10_force_clock_level,
-- 
2.5.5