From 278d7b94216739f6a257e314cfc8c80b76aeaf6f Mon Sep 17 00:00:00 2001 From: Tiezhu Yang Date: Tue, 25 Aug 2020 17:39:48 +0800 Subject: [PATCH] Revert "ALSA: hda: Add support for Loongson 7A1000 controller" This reverts commit 9ee2edc09444 ("ALSA: hda: Add support for Loongson 7A1000 controller") to fix the following error on the Loongson LS7A platform: rcu: INFO: rcu_preempt self-detected stall on CPU NMI backtrace for cpu 0 CPU: 0 PID: 68 Comm: kworker/0:2 Not tainted 5.8.0+ #3 Hardware name: , BIOS Workqueue: events azx_probe_work [snd_hda_intel] Call Trace: [] show_stack+0x9c/0x130 [] dump_stack+0xb0/0xf0 [] nmi_cpu_backtrace+0x134/0x140 [] nmi_trigger_cpumask_backtrace+0x190/0x200 [] rcu_dump_cpu_stacks+0x12c/0x190 [] rcu_sched_clock_irq+0xa2c/0xfc8 [] update_process_times+0x2c/0xb8 [] tick_sched_timer+0x40/0xb8 [] __hrtimer_run_queues+0x118/0x1d0 [] hrtimer_interrupt+0x12c/0x2d8 [] c0_compare_interrupt+0x74/0xa0 [] __handle_irq_event_percpu+0xa8/0x198 [] handle_irq_event_percpu+0x30/0x90 [] handle_percpu_irq+0x88/0xb8 [] generic_handle_irq+0x44/0x60 [] do_IRQ+0x18/0x28 [] plat_irq_dispatch+0x64/0x100 [] handle_int+0x140/0x14c [] irq_exit+0xf8/0x100 Because AZX_DRIVER_GENERIC can not work well for Loongson LS7A HDA controller, it needs some workarounds which are not merged into the upstream kernel at this time, so it should revert this patch now. Fixes: 9ee2edc09444 ("ALSA: hda: Add support for Loongson 7A1000 controller") Cc: # 5.9-rc1+ Signed-off-by: Tiezhu Yang Link: https://lore.kernel.org/r/1598348388-2518-1-git-send-email-yangtiezhu@loongson.cn Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_intel.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index e34a4d5d047c1..0f86e3765bb33 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2745,8 +2745,6 @@ static const struct pci_device_id azx_ids[] = { .driver_data = AZX_DRIVER_GENERIC | AZX_DCAPS_PRESET_ATI_HDMI }, /* Zhaoxin */ { PCI_DEVICE(0x1d17, 0x3288), .driver_data = AZX_DRIVER_ZHAOXIN }, - /* Loongson */ - { PCI_DEVICE(0x0014, 0x7a07), .driver_data = AZX_DRIVER_GENERIC }, { 0, } }; MODULE_DEVICE_TABLE(pci, azx_ids); -- 2.39.5