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From: Yaniv Gardi <ygardi@codeaurora.org>
To: James.Bottomley@HansenPartnership.com, hch@infradead.org
Cc: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org,
	linux-arm-msm@vger.kernel.org, santoshsy@gmail.com,
	linux-scsi-owner@vger.kernel.org, subhashj@codeaurora.org,
	ygardi@codeaurora.org, dovl@codeaurora.org,
	draviv@codeaurora.org, Vinayak Holikatti <vinholikatti@gmail.com>,
	"James E.J. Bottomley" <JBottomley@odin.com>
Subject: [PATCH v1 04/10] scsi: ufs-qcom: enable UFSHCD_QUIRK_BROKEN_LCC
Date: Sun, 17 May 2015 18:55:00 +0300	[thread overview]
Message-ID: <1431878106-30579-5-git-send-email-ygardi@codeaurora.org> (raw)
In-Reply-To: <1431878106-30579-1-git-send-email-ygardi@codeaurora.org>

LCC (Line Control Command) are being used for communication between
UFS host and UFS device. But UFS host controller on QUALCOMM
Technologies have an issue with issuing the LCC commands to
UFS device and hence this quirk is enabled in order to to disable
LCC from the host side.

Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>

---
 drivers/scsi/ufs/ufs-qcom.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index e8dc050..76d6e9d 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -715,6 +715,8 @@ static void ufs_qcom_advertise_quirks(struct ufs_hba *hba)
 	}
 
 	if (host->hw_ver.major >= 0x2) {
+		hba->quirks |= UFSHCD_QUIRK_BROKEN_LCC;
+
 		if (!ufs_qcom_cap_qunipro(host))
 			/* Legacy UniPro mode still need following quirks */
 			hba->quirks |= UFSHCD_QUIRK_DELAY_BEFORE_DME_CMDS;
-- 
1.8.5.2

-- 
QUALCOMM ISRAEL, on behalf of Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by The Linux Foundation

  parent reply	other threads:[~2015-05-17 15:55 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-17 15:54 [PATCH v1 00/10] *** introduce quirks for UFS host Yaniv Gardi
2015-05-17 15:54 ` [PATCH v1 01/10] scsi: ufs: introduce the capability and quirk for interrupt aggregation Yaniv Gardi
2015-05-17 15:54 ` [PATCH v1 02/10] scsi: ufs-qcom: don't enable " Yaniv Gardi
2015-05-17 15:54 ` [PATCH v1 03/10] scsi: ufs: provide a quirk to disable the LCC Yaniv Gardi
2015-05-19 14:26   ` Akinobu Mita
2015-05-17 15:55 ` Yaniv Gardi [this message]
2015-05-17 15:55 ` [PATCH v1 05/10] scsi: ufs: introduce a broken PA_RXHSUNTERMCAP quirk Yaniv Gardi
2015-05-17 15:55 ` [PATCH v1 06/10] scsi: ufs-qcom: enable quirk to fix gear change to HS Yaniv Gardi
2015-05-17 15:55 ` [PATCH v1 07/10] scsi: ufs: introduce UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE quirk Yaniv Gardi
2015-05-19 14:33   ` Akinobu Mita
2015-05-19 15:21   ` Akinobu Mita
2015-05-17 15:55 ` [PATCH v1 08/10] scsi: ufs-qcom: enable " Yaniv Gardi
2015-05-17 15:55 ` [PATCH v1 09/10] scsi: ufs: add quirk to handle broken UFS HCI version Yaniv Gardi
2015-05-17 15:55 ` [PATCH v1 10/10] scsi: ufs-qcom: enable UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION Yaniv Gardi
2015-05-19 14:41   ` Akinobu Mita
2015-05-19 14:23 ` [PATCH v1 00/10] *** introduce quirks for UFS host Akinobu Mita

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