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stm32: Simplify setting of 12bit mode on stm32h7 in stm32h7_adc.c 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2022-12-13 11:00:37 -05:00
parent 876c3ffffd
commit f571618376
1 changed files with 5 additions and 14 deletions
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19
src/stm32/stm32h7_adc.c
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@ -19,7 +19,6 @@
#define RCC_AHBENR_ADCEN (RCC_AHB1ENR_ADC12EN)
#define ADC_CKMODE (0b11)
#define ADC_ATICKS (0b101)
#define ADC_RES (0b110)
#define ADC_TS (ADC3_COMMON)
#if CONFIG_MACH_STM32H723
#define PCSEL PCSEL_RES0
@ -30,7 +29,6 @@
#define RCC_AHBENR_ADCEN (RCC_AHB2ENR_ADCEN)
#define ADC_CKMODE (0)
#define ADC_ATICKS (0b100)
#define ADC_RES (0b00)
#define ADC_TS (ADC12_COMMON)
#elif CONFIG_MACH_STM32G4
#define ADCIN_BANK_SIZE (19)
@ -38,7 +36,6 @@
#define RCC_AHBENR_ADCEN (RCC_AHB2ENR_ADC12EN)
#define ADC_CKMODE (0b11)
#define ADC_ATICKS (0b100)
#define ADC_RES (0b00)
#define ADC_TS (ADC12_COMMON)
#define ADC_CCR_TSEN (ADC_CCR_VSENSESEL)
#endif
@ -231,13 +228,6 @@ gpio_adc_setup(uint32_t pin)
// Enable the ADC
if (!(adc->CR & ADC_CR_ADEN)) {
// STM32H723 ADC3 and ADC1/2 registers are slightly different
uint8_t is_stm32h723_adc3 = 0;
#if CONFIG_MACH_STM32H723
if (adc == ADC3) {
is_stm32h723_adc3 = 1;
}
#endif
// Pwr
// Exit deep power down
MODIFY_REG(adc->CR, ADC_CR_DEEPPWD_Msk, 0);
@ -287,10 +277,11 @@ gpio_adc_setup(uint32_t pin)
| (aticks << 18) | (aticks << 21) | (aticks << 24)
| (aticks << 27));
// Set to 12 bit
if (!is_stm32h723_adc3) {
MODIFY_REG(adc->CFGR, ADC_CFGR_RES_Msk, ADC_RES<<ADC_CFGR_RES_Pos);
}
// The stm32h7 chips need to be set to 12bit samples
#if CONFIG_MACH_STM32H7
if (!(CONFIG_MACH_STM32H723 && adc == ADC3))
adc->CFGR = ADC_CFGR_JQDIS | (0b110 << ADC_CFGR_RES_Pos);
#endif
}
if (pin == ADC_TEMPERATURE_PIN) {