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authorVincent Whitchurch <vincent.whitchurch@axis.com>2023-01-03 16:22:10 +0100
committerMark Brown <broonie@kernel.org>2023-01-03 15:25:02 +0000
commit392af84bddcc96f1546a1ca4ffa71bccce95b897 (patch)
tree394d45a25d6d1bba5a5b1c7907b84e3300f67004 /drivers/spi
parentcb0713e620bbe26f7220ca53be8a106969a3a618 (diff)
spi: spi-loopback-test: Allow skipping delays
A 100 ms delay is inserted between tests by default in order to "detect the individual tests when using a logic analyzer". However, such delays are unnecessary when using this module for automated regression testing, so allow them to be disabled with a module parameter. Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Link: https://lore.kernel.org/r/20230103152211.3034779-1-vincent.whitchurch@axis.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/spi')
-rw-r--r--drivers/spi/spi-loopback-test.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/spi/spi-loopback-test.c b/drivers/spi/spi-loopback-test.c
index dd7de8fa37d0..313106eb8d40 100644
--- a/drivers/spi/spi-loopback-test.c
+++ b/drivers/spi/spi-loopback-test.c
@@ -71,6 +71,11 @@ module_param(check_ranges, int, 0644);
MODULE_PARM_DESC(check_ranges,
"checks rx_buffer pattern are valid");
+static unsigned int delay_ms = 100;
+module_param(delay_ms, uint, 0644);
+MODULE_PARM_DESC(delay_ms,
+ "delay between tests, in milliseconds (default: 100)");
+
/* the actual tests to execute */
static struct spi_test spi_tests[] = {
{
@@ -1098,7 +1103,8 @@ int spi_test_run_tests(struct spi_device *spi,
* detect the individual tests when using a logic analyzer
* we also add scheduling to avoid potential spi_timeouts...
*/
- mdelay(100);
+ if (delay_ms)
+ mdelay(delay_ms);
schedule();
}