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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-07 02:18:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-07 02:18:14 +0000
commit3a4516e9d4e52a1e1c49f9c269b6e702ef586047 (patch)
tree0e12fabd3a7d77e4d0bb956b670df8a1062abf7e /drivers/bus/mhi/host/pm.c
parentReleasing progress-linux version 6.1.85-1progress7u1. (diff)
downloadlinux-3a4516e9d4e52a1e1c49f9c269b6e702ef586047.tar.xz
linux-3a4516e9d4e52a1e1c49f9c269b6e702ef586047.zip
Merging upstream version 6.1.90.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/bus/mhi/host/pm.c')
-rw-r--r--drivers/bus/mhi/host/pm.c20
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/bus/mhi/host/pm.c b/drivers/bus/mhi/host/pm.c
index 8a4362d75..27f8a40f2 100644
--- a/drivers/bus/mhi/host/pm.c
+++ b/drivers/bus/mhi/host/pm.c
@@ -36,7 +36,10 @@
* M0 <--> M0
* M0 -> FW_DL_ERR
* M0 -> M3_ENTER -> M3 -> M3_EXIT --> M0
- * L1: SYS_ERR_DETECT -> SYS_ERR_PROCESS --> POR
+ * L1: SYS_ERR_DETECT -> SYS_ERR_PROCESS
+ * SYS_ERR_PROCESS -> SYS_ERR_FAIL
+ * SYS_ERR_FAIL -> SYS_ERR_DETECT
+ * SYS_ERR_PROCESS --> POR
* L2: SHUTDOWN_PROCESS -> LD_ERR_FATAL_DETECT
* SHUTDOWN_PROCESS -> DISABLE
* L3: LD_ERR_FATAL_DETECT <--> LD_ERR_FATAL_DETECT
@@ -93,7 +96,12 @@ static const struct mhi_pm_transitions dev_state_transitions[] = {
},
{
MHI_PM_SYS_ERR_PROCESS,
- MHI_PM_POR | MHI_PM_SHUTDOWN_PROCESS |
+ MHI_PM_POR | MHI_PM_SYS_ERR_FAIL | MHI_PM_SHUTDOWN_PROCESS |
+ MHI_PM_LD_ERR_FATAL_DETECT
+ },
+ {
+ MHI_PM_SYS_ERR_FAIL,
+ MHI_PM_SYS_ERR_DETECT | MHI_PM_SHUTDOWN_PROCESS |
MHI_PM_LD_ERR_FATAL_DETECT
},
/* L2 States */
@@ -624,7 +632,13 @@ static void mhi_pm_sys_error_transition(struct mhi_controller *mhi_cntrl)
!in_reset, timeout);
if (!ret || in_reset) {
dev_err(dev, "Device failed to exit MHI Reset state\n");
- goto exit_sys_error_transition;
+ write_lock_irq(&mhi_cntrl->pm_lock);
+ cur_state = mhi_tryset_pm_state(mhi_cntrl,
+ MHI_PM_SYS_ERR_FAIL);
+ write_unlock_irq(&mhi_cntrl->pm_lock);
+ /* Shutdown may have occurred, otherwise cleanup now */
+ if (cur_state != MHI_PM_SYS_ERR_FAIL)
+ goto exit_sys_error_transition;
}
/*