diff options
| author |   Rex Zhu <Rex.Zhu@amd.com> | 2018-06-22 14:12:59 +0800 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2018-07-05 16:40:00 -0500 |
| commit | ea870e44415a5f5ed09b6e002e38d3e0de7f390e (patch) | |
| tree | 6269d84c0561d5231b5bcb7341e82ca5837e17bd /drivers/gpu/drm/amd/powerplay/amd_powerplay.c | |
| parent | drm: drop drm_pcie_get_speed_cap_mask and drm_pcie_get_max_link_width (diff) | |
| download | linux-dev-ea870e44415a5f5ed09b6e002e38d3e0de7f390e.tar.xz linux-dev-ea870e44415a5f5ed09b6e002e38d3e0de7f390e.zip | |
drm/amd/pp: Export notify_smu_enable_pwe to display
Display can notify smu to enable pwe after gpu suspend.
It is used in case when display resumes from S3 and wants to start
audio driver by enabling pwe
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/amd_powerplay.c')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c index b72cc644d4e7..145e5c403bea 100644 --- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c +++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c @@ -1201,6 +1201,25 @@ static int pp_set_powergating_by_smu(void *handle, return ret; } +static int pp_notify_smu_enable_pwe(void *handle) +{ + struct pp_hwmgr *hwmgr = handle; + + if (!hwmgr || !hwmgr->pm_en) + return -EINVAL;; + + if (hwmgr->hwmgr_func->smus_notify_pwe == NULL) { + pr_info("%s was not implemented.\n", __func__); + return -EINVAL;; + } + + mutex_lock(&hwmgr->smu_lock); + hwmgr->hwmgr_func->smus_notify_pwe(hwmgr); + mutex_unlock(&hwmgr->smu_lock); + + return 0; +} + static const struct amd_pm_funcs pp_dpm_funcs = { .load_firmware = pp_dpm_load_fw, .wait_for_fw_loading_complete = pp_dpm_fw_loading_complete, @@ -1244,4 +1263,5 @@ static const struct amd_pm_funcs pp_dpm_funcs = { .set_watermarks_for_clocks_ranges = pp_set_watermarks_for_clocks_ranges, .display_clock_voltage_request = pp_display_clock_voltage_request, .get_display_mode_validation_clocks = pp_get_display_mode_validation_clocks, + .notify_smu_enable_pwe = pp_notify_smu_enable_pwe, }; |