Messages in this thread Patch in this message | | | From | Asutosh Das <> | Subject | [PATCH 1/9] scsi: ufs: Allowing power mode change | Date | Wed, 21 Feb 2018 10:26:32 +0530 |
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From: Yaniv Gardi <ygardi@codeaurora.org>
Due to M-PHY issues, moving from HS to any other mode or gear or even Hibern8 causes some un-predicted behavior of the device. This patch fixes this issues.
Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org> Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org> Signed-off-by: Can Guo <cang@codeaurora.org> Signed-off-by: Asutosh Das <asutoshd@codeaurora.org> --- drivers/scsi/ufs/ufshcd.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 011c336..d74d529 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4167,9 +4167,13 @@ static int ufshcd_link_startup(struct ufs_hba *hba) goto out; } while (ret && retries--); - if (ret) + if (ret) { /* failed to get the link up... retire */ goto out; + } else { + ufshcd_dme_set(hba, UIC_ARG_MIB(TX_LCC_ENABLE), 0); + ufshcd_dme_set(hba, UIC_ARG_MIB(TX_LCC_ENABLE), 1); + } if (link_startup_again) { link_startup_again = false; -- Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc. Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.
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