public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
* [PATCH] mfd: sun4i-gpadc: adaptation interrupt number
@ 2023-12-27  2:01 Fuyao Kashizuku
  2024-01-09 20:19 ` Jernej Škrabec
  2024-01-11 11:11 ` (subset) " Lee Jones
  0 siblings, 2 replies; 3+ messages in thread
From: Fuyao Kashizuku @ 2023-12-27  2:01 UTC (permalink / raw)
  To: Lee Jones, Chen-Yu Tsai, Jernej Skrabec, Samuel Holland,
	linux-arm-kernel, linux-sunxi, linux-kernel, Andre Przywara
  Cc: Jianzhang Mai

The identifiers are used as IRQ resource numbers, where 0 is treated
specially.

This fixes sun4i-gpadc-iio probe failed when request irq.

The backstack:
	WARNING: CPU: 3 PID: 1 at drivers/base/platform.c:451
	__platform_get_irq_byname+0xb8/0xc4
	0 is an invalid IRQ number
	Modules linked in:
	CPU: 3 PID: 1 Comm: swapper/0 Not tainted 6.7.0-rc6 #9
	Hardware name: Allwinner sun8i Family
	 unwind_backtrace
	 show_stack
	 dump_stack_lvl
	 __warn
	 warn_slowpath_fmt
	 __platform_get_irq_byname
	 platform_get_irq_byname
	 sun4i_irq_init
	 sun4i_gpadc_probe
	 platform_probe
	 really_probe
	 __driver_probe_device
	 driver_probe_device
	 __driver_attach
	 bus_for_each_dev
	 bus_add_driver
	 driver_register
	 do_one_initcall
	 do_initcall_level
	 do_initcalls
	 kernel_init_freeable
	 kernel_init

Log reports:
sun4i-gpadc-iio sun6i-a31-gpadc-iio.0: error -EINVAL: IRQ FIFO_DATA_PENDING
not found
sun4i-gpadc-iio: probe of sun6i-a31-gpadc-iio.0 failed with error -22

Signed-off-by: Fuyao Kashizuku <fuyao@sjterm.com>
---
Changes in v2:
 - Fix the commit message.
 - Add the backstack.
 - Add the log reports.
 - Use the correct full name and email address.
 - Correct the subsystem to mfd.
 - Link to v1: https://lore.kernel.org/lkml/YwdhTlk+9h+9Mrwm@scg/

 include/linux/mfd/sun4i-gpadc.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/mfd/sun4i-gpadc.h b/include/linux/mfd/sun4i-gpadc.h
index ea0ccf33a459..021f820f9d52 100644
--- a/include/linux/mfd/sun4i-gpadc.h
+++ b/include/linux/mfd/sun4i-gpadc.h
@@ -81,8 +81,8 @@
 #define SUN4I_GPADC_TEMP_DATA				0x20
 #define SUN4I_GPADC_DATA				0x24
 
-#define SUN4I_GPADC_IRQ_FIFO_DATA			0
-#define SUN4I_GPADC_IRQ_TEMP_DATA			1
+#define SUN4I_GPADC_IRQ_FIFO_DATA			1
+#define SUN4I_GPADC_IRQ_TEMP_DATA			2
 
 /* 10s delay before suspending the IP */
 #define SUN4I_GPADC_AUTOSUSPEND_DELAY			10000
-- 
2.39.2


^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2024-01-11 11:11 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-12-27  2:01 [PATCH] mfd: sun4i-gpadc: adaptation interrupt number Fuyao Kashizuku
2024-01-09 20:19 ` Jernej Škrabec
2024-01-11 11:11 ` (subset) " Lee Jones

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox