From cbebadf59534d3d7fffb78ae3f997e9e062a3d1a Mon Sep 17 00:00:00 2001 From: John Stultz Date: Mon, 13 May 2019 16:56:19 -0700 Subject: [PATCH] drivers: ufs: Extend the delay after reset to wait for some slower chips We've seen issues with some THG based UFS chips, where after reset the LUNs don't always enumerate properly. After some debugging, we found that extending the mdelay here seems to resolve the issue by giving the chips enough time to complete reset. Change-Id: I848f810b2438ed6ad3d33db614c61d2cef9ac400 Signed-off-by: John Stultz --- drivers/ufs/ufs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/ufs/ufs.c b/drivers/ufs/ufs.c index b2c104612..6dbf37236 100644 --- a/drivers/ufs/ufs.c +++ b/drivers/ufs/ufs.c @@ -704,7 +704,7 @@ static void ufs_enum(void) ufs_verify_ready(); ufs_set_flag(FLAG_DEVICE_INIT); - mdelay(100); + mdelay(200); /* dump available LUNs */ for (i = 0; i < UFS_MAX_LUNS; i++) { ufs_read_capacity(i, &blk_num, &blk_size);