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ODROID-N2/C4: add path of ADC in kernel 5.x

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Signed-off-by: steve.jeong <jkhpro1003@gmail.com>
Change-Id: I5abeaa0c863bb447e6a44efc9a1e348cb190ccf9
This commit is contained in:
steve.jeong
2022-06-09 09:37:30 +09:00
parent 4132c07cc9
commit bfadb61639
2 changed files with 18 additions and 4 deletions
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11
wiringPi/odroidc4.c
View File

@@ -675,8 +675,15 @@ static void init_adc_fds (void)
const char *AIN25_NODE, *AIN29_NODE;
/* ADC node setup */
AIN25_NODE = "/sys/devices/platform/ff809000.saradc/iio:device0/in_voltage2_raw";
AIN29_NODE = "/sys/devices/platform/ff809000.saradc/iio:device0/in_voltage0_raw";
if (cmpKernelVersion(KERN_NUM_TO_MAJOR, 5)) {
AIN25_NODE = "/sys/devices/platform/soc/ff800000.bus/ff809000.adc/iio:device0/in_voltage2_raw";
AIN29_NODE = "/sys/devices/platform/soc/ff800000.bus/ff809000.adc/iio:device0/in_voltage0_raw";
}
else {
AIN25_NODE = "/sys/devices/platform/ff809000.saradc/iio:device0/in_voltage2_raw";
AIN29_NODE = "/sys/devices/platform/ff809000.saradc/iio:device0/in_voltage0_raw";
}
adcFds[0] = open(AIN25_NODE, O_RDONLY);
adcFds[1] = open(AIN29_NODE, O_RDONLY);

11
wiringPi/odroidn2.c
View File

@@ -841,8 +841,15 @@ static void init_adc_fds (void)
const char *AIN0_NODE, *AIN1_NODE;
/* ADC node setup */
AIN0_NODE = "/sys/devices/platform/ff809000.saradc/iio:device0/in_voltage2_raw";
AIN1_NODE = "/sys/devices/platform/ff809000.saradc/iio:device0/in_voltage3_raw";
if (cmpKernelVersion(KERN_NUM_TO_MAJOR, 5)) {
AIN0_NODE = "/sys/devices/platform/soc/ff800000.bus/ff809000.adc/iio:device0/in_voltage2_raw";
AIN1_NODE = "/sys/devices/platform/soc/ff800000.bus/ff809000.adc/iio:device0/in_voltage3_raw";
}
else {
AIN0_NODE = "/sys/devices/platform/ff809000.saradc/iio:device0/in_voltage2_raw";
AIN1_NODE = "/sys/devices/platform/ff809000.saradc/iio:device0/in_voltage3_raw";
}
adcFds[0] = open(AIN0_NODE, O_RDONLY);
adcFds[1] = open(AIN1_NODE, O_RDONLY);