mmc: mmc-test: add eMMC hardware reset test

MMC core provides a checking function that checks if the reset
has happended.  Add a test to use that function.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

1 files changed, 30 insertions, 0 deletions

diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c
index 2bf229acd3b8..9cdce6367136 100644
--- a/drivers/mmc/card/mmc_test.c
+++ b/drivers/mmc/card/mmc_test.c
@@ -2328,6 +2328,31 @@ static int mmc_test_profile_sglen_r_nonblock_perf(struct mmc_test_card *test)
         return mmc_test_rw_multiple_sg_len(test, &test_data);
 }
 
+/*
+ * eMMC hardware reset.
+ */
+static int mmc_test_hw_reset(struct mmc_test_card *test)
+{
+        struct mmc_card *card = test->card;
+        struct mmc_host *host = card->host;
+        int err;
+
+        err = mmc_hw_reset_check(host);
+        if (!err)
+                return RESULT_OK;
+
+        if (err == -ENOSYS)
+                return RESULT_FAIL;
+
+        if (err != -EOPNOTSUPP)
+                return err;
+
+        if (!mmc_can_reset(card))
+                return RESULT_UNSUP_CARD;
+
+        return RESULT_UNSUP_HOST;
+}
+
 static const struct mmc_test_case mmc_test_cases[] = {
         {
                 .name = "Basic write (no data verification)",
@@ -2650,6 +2675,11 @@ static const struct mmc_test_case mmc_test_cases[] = {
                 .run = mmc_test_profile_sglen_r_nonblock_perf,
                 .cleanup = mmc_test_area_cleanup,
         },
+
+        {
+                .name = "eMMC hardware reset",
+                .run = mmc_test_hw_reset,
+        },
 };
 
 static DEFINE_MUTEX(mmc_test_lock);