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Only use PCLKSEL0 for ADC on LPC176x family.

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This commit is contained in:
Joshua Lange 2019-07-29 12:10:59 -05:00
parent 9ae6140b5a
commit 835b5e9d6f
1 changed files with 3 additions and 0 deletions
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arch/arm/src/lpc17xx_40xx/lpc17_40_adc.c
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@ -213,10 +213,13 @@ static void adc_reset(FAR struct adc_dev_s *dev)
putreg32(ADC_CR_PDN, LPC17_40_ADC_CR);
/* PCLKSEL0 only exists in LPC176x family parts */
#ifdef LPC176x
regval = getreg32(LPC17_40_SYSCON_PCLKSEL0);
regval &= ~SYSCON_PCLKSEL0_ADC_MASK;
regval |= (SYSCON_PCLKSEL_CCLK8 << SYSCON_PCLKSEL0_ADC_SHIFT);
putreg32(regval, LPC17_40_SYSCON_PCLKSEL0);
#endif
#ifdef CONFIG_LPC17_40_ADC_BURSTMODE
clkdiv = LPC17_40_CCLK / 3 / 65 / priv->sps;