[U-Boot] [PATCH] test: dm: regmap: Fix the long test delay

[Simon Glass]

At present one of the regmap tests takes 5 seconds to run since it waits
for a timeout. This should be handled using sandbox_timer_add_offset()
which advances time for test purposes.

This requires a little change to make the regmap_read_poll_timeout()
testable.

Update the macro and the test.

Fixes: ebe3497c9c ("test: regmap: add regmap_read_poll_timeout test")

Signed-off-by: Simon Glass <sjg at chromium.org>
---

 include/regmap.h | 14 +++++++++++++-
 test/dm/regmap.c |  7 ++++---
 2 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/include/regmap.h b/include/regmap.h
index a3afb72df51..8359c511d25 100644
--- a/include/regmap.h
+++ b/include/regmap.h
@@ -248,6 +248,8 @@ int regmap_raw_read_range(struct regmap *map, uint range_num, uint offset,
  * @cond:	Break condition (usually involving @val)
  * @sleep_us:	Maximum time to sleep between reads in us (0 tight-loops).
  * @timeout_ms:	Timeout in ms, 0 means never timeout
+ * @test_add_time: Used for sandbox testing - amount of time to add after
+ *		starting the loop (0 if not testing)
  *
  * Returns 0 on success and -ETIMEDOUT upon a timeout or the regmap_read
  * error return value in case of a error read. In the two former cases,
@@ -256,8 +258,12 @@ int regmap_raw_read_range(struct regmap *map, uint range_num, uint offset,
  *
  * This is modelled after the regmap_read_poll_timeout macros in linux but
  * with millisecond timeout.
+ *
+ * The _test version is for sandbox testing only. Do not use this in normal
+ * code as it advances the timer.
  */
-#define regmap_read_poll_timeout(map, addr, val, cond, sleep_us, timeout_ms) \
+#define regmap_read_poll_timeout_test(map, addr, val, cond, sleep_us, \
+				      timeout_ms, test_add_time) \
 ({ \
 	unsigned long __start = get_timer(0); \
 	int __ret; \
@@ -267,6 +273,8 @@ int regmap_raw_read_range(struct regmap *map, uint range_num, uint offset,
 			break; \
 		if (cond) \
 			break; \
+		if (IS_ENABLED(CONFIG_SANDBOX) && test_add_time) \
+			sandbox_timer_add_offset(test_add_time); \
 		if ((timeout_ms) && get_timer(__start) > (timeout_ms)) { \
 			__ret = regmap_read((map), (addr), &(val)); \
 			break; \
@@ -277,6 +285,10 @@ int regmap_raw_read_range(struct regmap *map, uint range_num, uint offset,
 	__ret ?: ((cond) ? 0 : -ETIMEDOUT); \
 })
 
+#define regmap_read_poll_timeout(map, addr, val, cond, sleep_us, timeout_ms) \
+	regmap_read_poll_timeout_test(map, addr, val, cond, sleep_us, \
+				      timeout_ms, 0) \
+
 /**
  * regmap_update_bits() - Perform a read/modify/write using a mask
  *
diff --git a/test/dm/regmap.c b/test/dm/regmap.c
index 9a70c159ddb..82de295cb8f 100644
--- a/test/dm/regmap.c
+++ b/test/dm/regmap.c
@@ -160,9 +160,10 @@ static int dm_test_regmap_poll(struct unit_test_state *uts)
 	start = get_timer(0);
 
 	ut_asserteq(-ETIMEDOUT,
-		    regmap_read_poll_timeout(map, 0, reg,
-					     (reg == 0xcacafafa),
-					     1, 5 * CONFIG_SYS_HZ));
+		    regmap_read_poll_timeout_test(map, 0, reg,
+						  (reg == 0xcacafafa),
+						  1, 5 * CONFIG_SYS_HZ,
+						  5 * CONFIG_SYS_HZ));
 
 	ut_assert(get_timer(start) > (5 * CONFIG_SYS_HZ));
 
-- 
2.20.0.rc2.403.gdbc3b29805-goog