Fabio Estevam a94913c0c8 ARM: dts: imx6qdl-sabreauto: Fix storm of accelerometer interrupts ... [ Upstream commit 7e5d0bf6af ] Since commit a211b8c55f ("ARM: dts: imx6qdl-sabreauto: Add sensors") a storm of accelerometer interrupts is seen: [ 114.211283] irq 260: nobody cared (try booting with the "irqpoll" option) [ 114.218108] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.3.4 #1 [ 114.223960] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) [ 114.230531] [<c0112858>] (unwind_backtrace) from [<c010cdc8>] (show_stack+0x10/0x14) [ 114.238301] [<c010cdc8>] (show_stack) from [<c0c1aa1c>] (dump_stack+0xd8/0x110) [ 114.245644] [<c0c1aa1c>] (dump_stack) from [<c0193594>] (__report_bad_irq+0x30/0xc0) [ 114.253417] [<c0193594>] (__report_bad_irq) from [<c01933ac>] (note_interrupt+0x108/0x298) [ 114.261707] [<c01933ac>] (note_interrupt) from [<c018ffe4>] (handle_irq_event_percpu+0x70/0x80) [ 114.270433] [<c018ffe4>] (handle_irq_event_percpu) from [<c019002c>] (handle_irq_event+0x38/0x5c) [ 114.279326] [<c019002c>] (handle_irq_event) from [<c019438c>] (handle_level_irq+0xc8/0x154) [ 114.287701] [<c019438c>] (handle_level_irq) from [<c018eda0>] (generic_handle_irq+0x20/0x34) [ 114.296166] [<c018eda0>] (generic_handle_irq) from [<c0534214>] (mxc_gpio_irq_handler+0x30/0xf0) [ 114.304975] [<c0534214>] (mxc_gpio_irq_handler) from [<c0534334>] (mx3_gpio_irq_handler+0x60/0xb0) [ 114.313955] [<c0534334>] (mx3_gpio_irq_handler) from [<c018eda0>] (generic_handle_irq+0x20/0x34) [ 114.322762] [<c018eda0>] (generic_handle_irq) from [<c018f3ac>] (__handle_domain_irq+0x64/0xe0) [ 114.331485] [<c018f3ac>] (__handle_domain_irq) from [<c05215a8>] (gic_handle_irq+0x4c/0xa8) [ 114.339862] [<c05215a8>] (gic_handle_irq) from [<c0101a70>] (__irq_svc+0x70/0x98) [ 114.347361] Exception stack(0xc1301ec0 to 0xc1301f08) [ 114.352435] 1ec0: 00000001 00000006 00000000 c130c340 00000001 c130f688 9785636d c13ea2e8 [ 114.360635] 1ee0: 9784907d 0000001a eaf99d78 0000001a 00000000 c1301f10 c0182b00 c0878de4 [ 114.368830] 1f00: 20000013 ffffffff [ 114.372349] [<c0101a70>] (__irq_svc) from [<c0878de4>] (cpuidle_enter_state+0x168/0x5f4) [ 114.380464] [<c0878de4>] (cpuidle_enter_state) from [<c08792ac>] (cpuidle_enter+0x28/0x38) [ 114.388751] [<c08792ac>] (cpuidle_enter) from [<c015ef9c>] (do_idle+0x224/0x2a8) [ 114.396168] [<c015ef9c>] (do_idle) from [<c015f3b8>] (cpu_startup_entry+0x18/0x20) [ 114.403765] [<c015f3b8>] (cpu_startup_entry) from [<c1200e54>] (start_kernel+0x43c/0x500) [ 114.411958] handlers: [ 114.414302] [<a01028b8>] irq_default_primary_handler threaded [<fd7a3b08>] mma8452_interrupt [ 114.422974] Disabling IRQ #260 CPU0 CPU1 .... 260: 100001 0 gpio-mxc 31 Level mma8451 The MMA8451 interrupt triggers as low level, so the GPIO6_IO31 pin needs to activate its pull up, otherwise it will stay always at low level generating multiple interrupts. The current device tree does not configure the IOMUX for this pin, so it uses whathever comes configured from the bootloader. The IOMUXC_SW_PAD_CTL_PAD_EIM_BCLK register value comes as 0x8000 from the bootloader, which has PKE bit cleared, hence disabling the pull-up. Instead of relying on a previous configuration from the bootloader, configure the GPIO6_IO31 pin with pull-up enabled in order to fix this problem. Fixes: a211b8c55f ("ARM: dts: imx6qdl-sabreauto: Add sensors") Signed-off-by: Fabio Estevam <festevam@gmail.com> Reviewed-By: Leonard Crestez <leonard.crestez@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2019-12-05 09:19:38 +01:00
..
alpha	alpha: Fix Eiger NR_IRQS to 128	2019-02-20 10:25:47 +01:00
arc	ARC: perf: Accommodate big-endian CPU	2019-12-01 09:17:37 +01:00
arm	ARM: dts: imx6qdl-sabreauto: Fix storm of accelerometer interrupts	2019-12-05 09:19:38 +01:00
arm64	arm64: makefile fix build of .i file in external module case	2019-12-01 09:17:14 +01:00
c6x	kbuild: rename LDFLAGS to KBUILD_LDFLAGS	2018-08-24 08:22:08 +09:00
h8300	h8300: use cc-cross-prefix instead of hardcoding h8300-unknown-linux-	2019-04-05 22:32:55 +02:00
hexagon	hexagon: modify ffs() and fls() to return int	2018-09-10 19:42:15 -05:00
ia64	ia64:unwind: fix double free for mod->arch.init_unw_table	2019-10-05 13:09:38 +02:00
m68k	m68k: fix command-line parsing when passed from u-boot	2019-12-01 09:16:22 +01:00
microblaze	mm: make the __PAGETABLE_PxD_FOLDED defines non-empty	2018-12-29 13:37:57 +01:00
mips	MIPS: kexec: Relax memory restriction	2019-11-20 18:47:15 +01:00
nds32	nds32: Fix bug in bitfield.h	2019-12-01 09:17:18 +01:00
nios2	nios2: kconfig: remove duplicate DEBUG_STACK_USAGE symbol defintions	2018-08-27 09:47:20 +08:00
openrisc	OpenRISC updates for 4.19	2018-08-23 14:09:37 -07:00
parisc	parisc: Fix vmap memory leak in ioremap()/iounmap()	2019-10-29 09:20:00 +01:00
powerpc	KVM: PPC: Book3S HV: Flush link stack on guest exit to host kernel	2019-12-01 09:17:46 +01:00
riscv	RISC-V: Avoid corrupting the upper 32-bit of phys_addr_t in ioremap	2019-12-01 09:16:53 +01:00
s390	s390/perf: Return error when debug_register fails	2019-12-01 09:16:42 +01:00
sh	sh: kernel: hw_breakpoint: Fix missing break in switch statement	2019-08-25 10:47:42 +02:00
sparc	sparc64: Rework xchg() definition to avoid warnings.	2019-12-01 09:17:01 +01:00
um	um: Make line/tty semantics use true write IRQ	2019-12-01 09:17:04 +01:00
unicore32	mm: convert return type of handle_mm_fault() caller to vm_fault_t	2018-08-17 16:20:28 -07:00
x86	x86/speculation: Fix redundant MDS mitigation message	2019-12-01 09:17:37 +01:00
xtensa	xtensa: drop EXPORT_SYMBOL for outs*/ins*	2019-10-29 09:20:00 +01:00
.gitignore
Kconfig	jump_label: move 'asm goto' support test to Kconfig	2019-06-04 08:02:34 +02:00