diff options
| author | Huang Rui <ray.huang@amd.com> | 2016-07-26 10:57:07 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2016-08-08 18:32:30 +0300 |
| commit | e4e2c8f29a343953f0ff31bd2775b73cd8c07a4c (patch) | |
| tree | 03657b2dbcce49e36256e899d39f6478b8fd1a54 /drivers/gpu/drm/amd/powerplay/hwmgr | |
| parent | 9f7aab6fd396dcb7dacee152784ddf9c2f9b0e8b (diff) | |
| download | linux-e4e2c8f29a343953f0ff31bd2775b73cd8c07a4c.tar.xz | |
drm/amd/powerplay: add deep sleep initialization
This patch adds the deep sleep initialization at DPM, it needs send a
message to SMC to enable this feature before enable voltage controller.
Signed-off-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/powerplay/hwmgr')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/hwmgr/iceland_hwmgr.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/iceland_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/iceland_hwmgr.c index 7ffbbef60639..7a9749f48bca 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/iceland_hwmgr.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/iceland_hwmgr.c @@ -3069,6 +3069,36 @@ static int iceland_tf_start_smc(struct pp_hwmgr *hwmgr) return ret; } +/** +* Programs the Deep Sleep registers +* +* @param pHwMgr the address of the powerplay hardware manager. +* @param pInput the pointer to input data (PhwEvergreen_DisplayConfiguration) +* @param pOutput the pointer to output data (unused) +* @param pStorage the pointer to temporary storage (unused) +* @param Result the last failure code (unused) +* @return always 0 +*/ +static int iceland_enable_deep_sleep_master_switch(struct pp_hwmgr *hwmgr) +{ + if (phm_cap_enabled(hwmgr->platform_descriptor.platformCaps, + PHM_PlatformCaps_SclkDeepSleep)) { + if (smum_send_msg_to_smc(hwmgr->smumgr, + PPSMC_MSG_MASTER_DeepSleep_ON) != 0) + PP_ASSERT_WITH_CODE(false, + "Attempt to enable Master Deep Sleep switch failed!", + return -EINVAL); + } else { + if (smum_send_msg_to_smc(hwmgr->smumgr, + PPSMC_MSG_MASTER_DeepSleep_OFF) != 0) + PP_ASSERT_WITH_CODE(false, + "Attempt to disable Master Deep Sleep switch failed!", + return -EINVAL); + } + + return 0; +} + static int iceland_enable_dpm_tasks(struct pp_hwmgr *hwmgr) { int tmp_result, result = 0; @@ -3133,6 +3163,10 @@ static int iceland_enable_dpm_tasks(struct pp_hwmgr *hwmgr) PP_ASSERT_WITH_CODE((0 == tmp_result), "Failed to enable SCLK control!", return tmp_result); + tmp_result = iceland_enable_deep_sleep_master_switch(hwmgr); + PP_ASSERT_WITH_CODE((tmp_result == 0), + "Failed to enable deep sleep!", return tmp_result); + /* enable DPM */ tmp_result = iceland_start_dpm(hwmgr); PP_ASSERT_WITH_CODE((0 == tmp_result), |