regmap: Provide test for regcache_reg_present()

Provide a KUnit test for the newly added API.

Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20230717-regmap-cache-check-v1-2-73ef688afae3@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/base/regmap/regmap-kunit.c b/drivers/base/regmap/regmap-kunit.c
index 24257aa9004dbc3a1c629f94093b649c86dbe8b5..8dd96a55d976c1c57598571179eeb603032e35b5 100644 (file)
--- a/drivers/base/regmap/regmap-kunit.c
+++ b/drivers/base/regmap/regmap-kunit.c
@@ -833,6 +833,45 @@ static void cache_drop(struct kunit *test)
        regmap_exit(map);
 }
 
+static void cache_present(struct kunit *test)
+{
+       struct regcache_types *t = (struct regcache_types *)test->param_value;
+       struct regmap *map;
+       struct regmap_config config;
+       struct regmap_ram_data *data;
+       unsigned int val;
+       int i;
+
+       config = test_regmap_config;
+       config.cache_type = t->type;
+
+       map = gen_regmap(&config, &data);
+       KUNIT_ASSERT_FALSE(test, IS_ERR(map));
+       if (IS_ERR(map))
+               return;
+
+       for (i = 0; i < BLOCK_TEST_SIZE; i++)
+               data->read[i] = false;
+
+       /* No defaults so no registers cached. */
+       for (i = 0; i < BLOCK_TEST_SIZE; i++)
+               KUNIT_ASSERT_FALSE(test, regcache_reg_cached(map, i));
+
+       /* We didn't trigger any reads */
+       for (i = 0; i < BLOCK_TEST_SIZE; i++)
+               KUNIT_ASSERT_FALSE(test, data->read[i]);
+
+       /* Fill the cache */
+       for (i = 0; i < BLOCK_TEST_SIZE; i++)
+               KUNIT_EXPECT_EQ(test, 0, regmap_read(map, i, &val));
+
+       /* Now everything should be cached */
+       for (i = 0; i < BLOCK_TEST_SIZE; i++)
+               KUNIT_ASSERT_TRUE(test, regcache_reg_cached(map, i));
+
+       regmap_exit(map);
+}
+
 struct raw_test_types {
        const char *name;
 
@@ -1172,6 +1211,7 @@ static struct kunit_case regmap_test_cases[] = {
        KUNIT_CASE_PARAM(cache_sync_readonly, real_cache_types_gen_params),
        KUNIT_CASE_PARAM(cache_sync_patch, real_cache_types_gen_params),
        KUNIT_CASE_PARAM(cache_drop, sparse_cache_types_gen_params),
+       KUNIT_CASE_PARAM(cache_present, sparse_cache_types_gen_params),
 
        KUNIT_CASE_PARAM(raw_read_defaults_single, raw_test_types_gen_params),
        KUNIT_CASE_PARAM(raw_read_defaults, raw_test_types_gen_params),