pinctrl: meditatek: Startup with the IRQs disabled
[ Upstream commit
60668f9fd3f572e5fe11d153816207ec02153bf0 ]
If the system is restarted via kexec(), the peripherals do not start
with a known state.
If the previous system had enabled an IRQs we will receive unexected
IRQs that can lock the system.
[ 28.109251] watchdog: BUG: soft lockup - CPU#0 stuck for 26s!
[swapper/0:0]
[ 28.109263] Modules linked in:
[ 28.109273] CPU: 0 PID: 0 Comm: swapper/0 Not tainted
5.15.79-14458-g4b9edf7b1ac6 #1
9f2e76613148af94acccd64c609a552fb4b4354b
[ 28.109284] Hardware name: Google Elm (DT)
[ 28.109290] pstate:
40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS
BTYPE=--)
[ 28.109298] pc : __do_softirq+0xa0/0x388
[ 28.109309] lr : __do_softirq+0x70/0x388
[ 28.109316] sp :
ffffffc008003ee0
[ 28.109321] x29:
ffffffc008003f00 x28:
000000000000000a x27:
0000000000000080
[ 28.109334] x26:
0000000000000001 x25:
ffffffefa7b350c0 x24:
ffffffefa7b47480
[ 28.109346] x23:
ffffffefa7b3d000 x22:
0000000000000000 x21:
ffffffefa7b0fa40
[ 28.109358] x20:
ffffffefa7b005b0 x19:
ffffffefa7b47480 x18:
0000000000065b6b
[ 28.109370] x17:
ffffffefa749c8b0 x16:
000000000000018c x15:
00000000000001b8
[ 28.109382] x14:
00000000000d3b6b x13:
0000000000000006 x12:
0000000000057e91
[ 28.109394] x11:
0000000000000000 x10:
0000000000000000 x9 :
ffffffefa7b47480
[ 28.109406] x8 :
00000000000000e0 x7 :
000000000f424000 x6 :
0000000000000000
[ 28.109418] x5 :
ffffffefa7dfaca0 x4 :
ffffffefa7dfadf0 x3 :
000000000000000f
[ 28.109429] x2 :
0000000000000000 x1 :
0000000000000100 x0 :
0000000001ac65c5
[ 28.109441] Call trace:
[ 28.109447] __do_softirq+0xa0/0x388
[ 28.109454] irq_exit+0xc0/0xe0
[ 28.109464] handle_domain_irq+0x68/0x90
[ 28.109473] gic_handle_irq+0xac/0xf0
[ 28.109480] call_on_irq_stack+0x28/0x50
[ 28.109488] do_interrupt_handler+0x44/0x58
[ 28.109496] el1_interrupt+0x30/0x58
[ 28.109506] el1h_64_irq_handler+0x18/0x24
[ 28.109512] el1h_64_irq+0x7c/0x80
[ 28.109519] arch_local_irq_enable+0xc/0x18
[ 28.109529] default_idle_call+0x40/0x140
[ 28.109539] do_idle+0x108/0x290
[ 28.109547] cpu_startup_entry+0x2c/0x30
[ 28.109554] rest_init+0xe8/0xf8
[ 28.109562] arch_call_rest_init+0x18/0x24
[ 28.109571] start_kernel+0x338/0x42c
[ 28.109578] __primary_switched+0xbc/0xc4
[ 28.109588] Kernel panic - not syncing: softlockup: hung tasks
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Link: https://lore.kernel.org/r/20221122-mtk-pinctrl-v1-1-bedf5655a3d2@chromium.org
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>