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Fabrice Gasnier 20c89b4d1d iio: trigger: stm32-timer: fix build issue when disabled 
This fixes a build issue when CONFIG_IIO_STM32_TIMER_TRIGGER isn't set but
used in stm32-dfsdm-adc driver (e.g. CONFIG_STM32_DFSDM_ADC is set):
ERROR: "is_stm32_timer_trigger" [drivers/iio/adc/stm32-dfsdm-adc.ko]
undefined!

There are two possible options to fix this issue:
- select IIO_STM32_TIMER_TRIGGER along with CONFIG_STM32_DFSDM_ADC.
  This is what's being done currently for CONFIG_STM32_ADC.
- stub "is_stm32_timer_trigger" function

Choice is made to stub this function as suggested in [1]. This is also
inspired by similar "is_stm32_lptim_trigger" function (see [2]) in
include/linux/iio/timer/stm32-lptim-trigger.h

[1]
https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1977377.html
[2] https://lkml.org/lkml/2017/9/10/124

Fixes: 11646e81d7 ("iio: adc: stm32-dfsdm: add support for buffer modes")

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Fix-suggested-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2019-04-22 11:34:14 +01:00
..
acpi ACPI: use different default debug value than ACPICA 2019-03-25 10:45:59 +01:00
asm-generic kbuild: force all architectures except um to include mandatory-y 2019-03-17 12:56:32 +09:00
clocksource clocksource/arm_arch_timer: Store physical timer IRQ number for KVM on VHE 2019-02-19 21:05:22 +00:00
crypto crypto: export arc4 defines 2019-02-15 13:21:55 +08:00
drm drm i915, amdgpu, qxl and etnaviv fixes 2019-03-15 13:58:35 -07:00
dt-bindings dt-bindings: iio/temperature: Add thermocouple types (and doc) 2019-04-04 20:21:01 +01:00
keys Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-03-10 17:32:04 -07:00
kvm ARM: some cleanups, direct physical timer assignment, cache sanitization 2019-03-15 15:00:28 -07:00
linux iio: trigger: stm32-timer: fix build issue when disabled 2019-04-22 11:34:14 +01:00
math-emu
media media: include: fix several typos 2019-03-01 09:45:52 -05:00
memory
misc auxdisplay: charlcd: Introduce charlcd_free() helper 2019-03-17 08:48:16 +01:00
net net/sched: let actions use RCU to access 'goto_chain' 2019-03-21 13:26:42 -07:00
pcmcia
ras
rdma RDMA: Handle ucontext allocations by IB/core 2019-02-22 14:11:37 -07:00
scsi scsi: kill command serial number 2019-02-27 09:19:24 -05:00
soc IOMMU Updates for Linux v5.1 2019-03-10 12:29:52 -07:00
sound sound fixes for 5.1-rc1 2019-03-15 14:05:00 -07:00
target
trace NFS client bugfixes for Linux 5.1 2019-03-16 12:28:18 -07:00
uapi A collection of x86 and ARM bugfixes, and some improvements to documentation. 2019-03-31 08:55:59 -07:00
video media updates for v5.1-rc1 2019-03-09 14:45:54 -08:00
xen x86/xen: dont add memory above max allowed allocation 2019-02-18 06:52:51 +01:00