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20c89b4d1d
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>
87 lines
1.9 KiB
C
87 lines
1.9 KiB
C
/*
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* Copyright (C) STMicroelectronics 2016
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*
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* Author: Benjamin Gaignard <benjamin.gaignard@st.com>
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*
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* License terms: GNU General Public License (GPL), version 2
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*/
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#ifndef _STM32_TIMER_TRIGGER_H_
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#define _STM32_TIMER_TRIGGER_H_
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#define TIM1_TRGO "tim1_trgo"
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#define TIM1_TRGO2 "tim1_trgo2"
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#define TIM1_CH1 "tim1_ch1"
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#define TIM1_CH2 "tim1_ch2"
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#define TIM1_CH3 "tim1_ch3"
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#define TIM1_CH4 "tim1_ch4"
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#define TIM2_TRGO "tim2_trgo"
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#define TIM2_CH1 "tim2_ch1"
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#define TIM2_CH2 "tim2_ch2"
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#define TIM2_CH3 "tim2_ch3"
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#define TIM2_CH4 "tim2_ch4"
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#define TIM3_TRGO "tim3_trgo"
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#define TIM3_CH1 "tim3_ch1"
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#define TIM3_CH2 "tim3_ch2"
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#define TIM3_CH3 "tim3_ch3"
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#define TIM3_CH4 "tim3_ch4"
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#define TIM4_TRGO "tim4_trgo"
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#define TIM4_CH1 "tim4_ch1"
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#define TIM4_CH2 "tim4_ch2"
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#define TIM4_CH3 "tim4_ch3"
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#define TIM4_CH4 "tim4_ch4"
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#define TIM5_TRGO "tim5_trgo"
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#define TIM5_CH1 "tim5_ch1"
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#define TIM5_CH2 "tim5_ch2"
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#define TIM5_CH3 "tim5_ch3"
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#define TIM5_CH4 "tim5_ch4"
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#define TIM6_TRGO "tim6_trgo"
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#define TIM7_TRGO "tim7_trgo"
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#define TIM8_TRGO "tim8_trgo"
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#define TIM8_TRGO2 "tim8_trgo2"
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#define TIM8_CH1 "tim8_ch1"
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#define TIM8_CH2 "tim8_ch2"
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#define TIM8_CH3 "tim8_ch3"
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#define TIM8_CH4 "tim8_ch4"
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#define TIM9_TRGO "tim9_trgo"
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#define TIM9_CH1 "tim9_ch1"
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#define TIM9_CH2 "tim9_ch2"
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#define TIM10_OC1 "tim10_oc1"
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#define TIM11_OC1 "tim11_oc1"
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#define TIM12_TRGO "tim12_trgo"
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#define TIM12_CH1 "tim12_ch1"
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#define TIM12_CH2 "tim12_ch2"
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#define TIM13_OC1 "tim13_oc1"
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#define TIM14_OC1 "tim14_oc1"
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#define TIM15_TRGO "tim15_trgo"
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#define TIM16_OC1 "tim16_oc1"
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#define TIM17_OC1 "tim17_oc1"
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#if IS_REACHABLE(CONFIG_IIO_STM32_TIMER_TRIGGER)
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bool is_stm32_timer_trigger(struct iio_trigger *trig);
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#else
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static inline bool is_stm32_timer_trigger(struct iio_trigger *trig)
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{
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#if IS_ENABLED(CONFIG_IIO_STM32_TIMER_TRIGGER)
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pr_warn_once("stm32-timer-trigger not linked in\n");
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#endif
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return false;
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}
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#endif
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#endif
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