drm/amdgpu/pm: Fix the power source flag error

commit ca1ffb174f16b699c536734fc12a4162097c49f4 upstream.

The power source flag should be updated when
[1] System receives an interrupt indicating that the power source
has changed.
[2] System resumes from suspend or runtime suspend

Signed-off-by: Ma Jun <Jun.Ma2@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index b47fd42..56e4c31 100644 (file)
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -24,6 +24,7 @@
 
 #include <linux/firmware.h>
 #include <linux/pci.h>
+#include <linux/power_supply.h>
 #include <linux/reboot.h>
 
 #include "amdgpu.h"
@@ -741,16 +742,8 @@ static int smu_late_init(void *handle)
         * handle the switch automatically. Driver involvement
         * is unnecessary.
         */
-       if (!smu->dc_controlled_by_gpio) {
-               ret = smu_set_power_source(smu,
-                                          adev->pm.ac_power ? SMU_POWER_SOURCE_AC :
-                                          SMU_POWER_SOURCE_DC);
-               if (ret) {
-                       dev_err(adev->dev, "Failed to switch to %s mode!\n",
-                               adev->pm.ac_power ? "AC" : "DC");
-                       return ret;
-               }
-       }
+       adev->pm.ac_power = power_supply_is_system_supplied() > 0;
+       smu_set_ac_dc(smu);
 
        if ((adev->ip_versions[MP1_HWIP][0] == IP_VERSION(13, 0, 1)) ||
            (adev->ip_versions[MP1_HWIP][0] == IP_VERSION(13, 0, 3)))

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
index aa4a549..123c19b 100644 (file)
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
@@ -1441,10 +1441,12 @@ static int smu_v11_0_irq_process(struct amdgpu_device *adev,
                        case 0x3:
                                dev_dbg(adev->dev, "Switched to AC mode!\n");
                                schedule_work(&smu->interrupt_work);
+                               adev->pm.ac_power = true;
                                break;
                        case 0x4:
                                dev_dbg(adev->dev, "Switched to DC mode!\n");
                                schedule_work(&smu->interrupt_work);
+                               adev->pm.ac_power = false;
                                break;
                        case 0x7:
                                /*

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
index 5355f62..c097aed 100644 (file)
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
@@ -1377,10 +1377,12 @@ static int smu_v13_0_irq_process(struct amdgpu_device *adev,
                        case 0x3:
                                dev_dbg(adev->dev, "Switched to AC mode!\n");
                                smu_v13_0_ack_ac_dc_interrupt(smu);
+                               adev->pm.ac_power = true;
                                break;
                        case 0x4:
                                dev_dbg(adev->dev, "Switched to DC mode!\n");
                                smu_v13_0_ack_ac_dc_interrupt(smu);
+                               adev->pm.ac_power = false;
                                break;
                        case 0x7:
                                /*