On 1/18/2024 12:57 PM, Ma Jun wrote:
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@xxxxxxx>
---
drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c | 13 +++----------
drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c | 2 ++
drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c | 2 ++
3 files changed, 7 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index c16703868e5c..a54663f2e2ab 100644
--- 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"
@@ -817,16 +818,8 @@ 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);
In the older logic, driver initialization/resume fails if the message
fails. This one doesn't care about the return value. Is there a reason
to ignore and continue?
Thanks,
Lijo
if ((amdgpu_ip_version(adev, MP1_HWIP, 0) == IP_VERSION(13, 0, 1)) ||
(amdgpu_ip_version(adev, 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 2e7f8d5cfc28..8047150fddd4 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
@@ -1442,10 +1442,12 @@ 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 771a3d457c33..c486182ff275 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
@@ -1379,10 +1379,12 @@ 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:
/*
