tools: gpio: add option to report wall-clock time to gpio-event-mon

Add support for selecting the realtime clock for events.

Signed-off-by: Kent Gibson <warthog618@gmail.com>
Link: https://lore.kernel.org/r/20201014231158.34117-4-warthog618@gmail.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

diff --git a/tools/gpio/gpio-event-mon.c b/tools/gpio/gpio-event-mon.c
index 90c3155..cacd66a 100644 (file)
--- a/tools/gpio/gpio-event-mon.c
+++ b/tools/gpio/gpio-event-mon.c
@@ -148,6 +148,7 @@ void print_usage(void)
                "  -s         Set line as open source\n"
                "  -r         Listen for rising edges\n"
                "  -f         Listen for falling edges\n"
+               "  -w         Report the wall-clock time for events\n"
                "  -b <n>     Debounce the line with period n microseconds\n"
                " [-c <n>]    Do <n> loops (optional, infinite loop if not stated)\n"
                "  -?         This helptext\n"
@@ -173,7 +174,7 @@ int main(int argc, char **argv)
 
        memset(&config, 0, sizeof(config));
        config.flags = GPIO_V2_LINE_FLAG_INPUT;
-       while ((c = getopt(argc, argv, "c:n:o:b:dsrf?")) != -1) {
+       while ((c = getopt(argc, argv, "c:n:o:b:dsrfw?")) != -1) {
                switch (c) {
                case 'c':
                        loops = strtoul(optarg, NULL, 10);
@@ -204,6 +205,9 @@ int main(int argc, char **argv)
                case 'f':
                        config.flags |= GPIO_V2_LINE_FLAG_EDGE_FALLING;
                        break;
+               case 'w':
+                       config.flags |= GPIO_V2_LINE_FLAG_EVENT_CLOCK_REALTIME;
+                       break;
                case '?':
                        print_usage();
                        return -1;