diff options
| author | Devarsh Thakkar <devarsht@ti.com> | 2024-10-21 17:07:49 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> | 2024-11-25 13:10:22 +0200 |
| commit | 361a2ebb5cad211732ec3c5d962de49b21895590 (patch) | |
| tree | ae4ebb805a280e061b922563c945c98d0002e97a /drivers/gpu/drm/drm_atomic_helper.c | |
| parent | 76bae5b9e206d6649d1a944c0f7a6c147b8e5bf6 (diff) | |
drm/tidss: Clear the interrupt status for interrupts being disabled
The driver does not touch the irqstatus register when it is disabling
interrupts. This might cause an interrupt to trigger for an interrupt
that was just disabled.
To fix the issue, clear the irqstatus registers right after disabling
the interrupts.
Fixes: 32a1795f57ee ("drm/tidss: New driver for TI Keystone platform Display SubSystem")
Cc: stable@vger.kernel.org
Reported-by: Jonathan Cormier <jcormier@criticallink.com>
Closes: https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1394222/am625-issue-about-tidss-rcu_preempt-self-detected-stall-on-cpu/5424479#5424479
Signed-off-by: Devarsh Thakkar <devarsht@ti.com>
[Tomi: mostly rewrote the patch]
Reviewed-by: Jonathan Cormier <jcormier@criticallink.com>
Tested-by: Jonathan Cormier <jcormier@criticallink.com>
Reviewed-by: Aradhya Bhatia <aradhya.bhatia@linux.dev>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241021-tidss-irq-fix-v1-5-82ddaec94e4a@ideasonboard.com
Diffstat (limited to 'drivers/gpu/drm/drm_atomic_helper.c')
0 files changed, 0 insertions, 0 deletions