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Signed-off-by: Guenter Roeck --- This patch applies on top of the patch introducing support for regmap_multi_reg_read(). drivers/base/regmap/regmap-kunit.c | 73 ++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) diff --git a/drivers/base/regmap/regmap-kunit.c b/drivers/base/regmap/regma= p-kunit.c index be32cd4e84da..eb8f0c001db1 100644 --- a/drivers/base/regmap/regmap-kunit.c +++ b/drivers/base/regmap/regmap-kunit.c @@ -295,6 +295,77 @@ static void bulk_read(struct kunit *test) KUNIT_EXPECT_EQ(test, config.cache_type =3D=3D REGCACHE_NONE, data->read= [i]); } =20 +static void multi_write(struct kunit *test) +{ + struct regmap *map; + struct regmap_config config; + struct regmap_ram_data *data; + struct reg_sequence sequence[BLOCK_TEST_SIZE]; + unsigned int val[BLOCK_TEST_SIZE], rval[BLOCK_TEST_SIZE]; + int i; + + config =3D test_regmap_config; + + map =3D gen_regmap(test, &config, &data); + KUNIT_ASSERT_FALSE(test, IS_ERR(map)); + if (IS_ERR(map)) + return; + + get_random_bytes(&val, sizeof(val)); + + /* + * Data written via the multi API can be read back with single + * reads. + */ + for (i =3D 0; i < BLOCK_TEST_SIZE; i++) { + sequence[i].reg =3D i; + sequence[i].def =3D val[i]; + sequence[i].delay_us =3D 0; + } + KUNIT_EXPECT_EQ(test, 0, + regmap_multi_reg_write(map, sequence, BLOCK_TEST_SIZE)); + for (i =3D 0; i < BLOCK_TEST_SIZE; i++) + KUNIT_EXPECT_EQ(test, 0, regmap_read(map, i, &rval[i])); + + KUNIT_EXPECT_MEMEQ(test, val, rval, sizeof(val)); + + /* If using a cache the cache satisfied the read */ + for (i =3D 0; i < BLOCK_TEST_SIZE; i++) + KUNIT_EXPECT_EQ(test, config.cache_type =3D=3D REGCACHE_NONE, data->read= [i]); +} + +static void multi_read(struct kunit *test) +{ + struct regmap *map; + struct regmap_config config; + struct regmap_ram_data *data; + unsigned int regs[BLOCK_TEST_SIZE]; + unsigned int val[BLOCK_TEST_SIZE], rval[BLOCK_TEST_SIZE]; + int i; + + config =3D test_regmap_config; + + map =3D gen_regmap(test, &config, &data); + KUNIT_ASSERT_FALSE(test, IS_ERR(map)); + if (IS_ERR(map)) + return; + + get_random_bytes(&val, sizeof(val)); + + /* Data written as single writes can be read via the multi API */ + for (i =3D 0; i < BLOCK_TEST_SIZE; i++) { + regs[i] =3D i; + KUNIT_EXPECT_EQ(test, 0, regmap_write(map, i, val[i])); + } + KUNIT_EXPECT_EQ(test, 0, + regmap_multi_reg_read(map, regs, rval, BLOCK_TEST_SIZE)); + KUNIT_EXPECT_MEMEQ(test, val, rval, sizeof(val)); + + /* If using a cache the cache satisfied the read */ + for (i =3D 0; i < BLOCK_TEST_SIZE; i++) + KUNIT_EXPECT_EQ(test, config.cache_type =3D=3D REGCACHE_NONE, data->read= [i]); +} + static void read_bypassed(struct kunit *test) { const struct regmap_test_param *param =3D test->param_value; @@ -1887,6 +1958,8 @@ static struct kunit_case regmap_test_cases[] =3D { KUNIT_CASE_PARAM(read_bypassed_volatile, real_cache_types_gen_params), KUNIT_CASE_PARAM(bulk_write, regcache_types_gen_params), KUNIT_CASE_PARAM(bulk_read, regcache_types_gen_params), + KUNIT_CASE_PARAM(multi_write, regcache_types_gen_params), + KUNIT_CASE_PARAM(multi_read, regcache_types_gen_params), KUNIT_CASE_PARAM(write_readonly, regcache_types_gen_params), KUNIT_CASE_PARAM(read_writeonly, regcache_types_gen_params), KUNIT_CASE_PARAM(reg_defaults, regcache_types_gen_params), --=20 2.39.2