Subject: [PATCH AUTOSEL 5.5 376/542] scsi: ufs-mediatek: add apply_dev_quirks variant operation

From: Sasha Levin <[email-masked]>
Date: Fri, 14 Feb 2020 10:46:08 -0500

From: Stanley Chu <[email-masked]>

[ Upstream commit ea92c32bd336efba89c5b09cf609e6e26e963796 ]

Add vendor-specific variant callback "apply_dev_quirks" to MediaTek UFS
driver.

Cc: Alim Akhtar <[email-masked]>
Cc: Asutosh Das <[email-masked]>
Cc: Avri Altman <[email-masked]>
Cc: Bart Van Assche <[email-masked]>
Cc: Bean Huo <[email-masked]>
Cc: Can Guo <[email-masked]>
Cc: Matthias Brugger <[email-masked]>
Link: https://lore.kernel.org/r/[email-masked]
Reviewed-by: Avri Altman <[email-masked]>
Reviewed-by: Bean Huo <[email-masked]>
Signed-off-by: Stanley Chu <[email-masked]>
Signed-off-by: Martin K. Petersen <[email-masked]>
Signed-off-by: Sasha Levin <[email-masked]>
---
 drivers/scsi/ufs/ufs-mediatek.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index 83e28edc3ac5b..8a21f49caf0d9 100644
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -13,6 +13,7 @@
 
 #include "ufshcd.h"
 #include "ufshcd-pltfrm.h"
+#include "ufs_quirks.h"
 #include "unipro.h"
 #include "ufs-mediatek.h"
 
@@ -289,6 +290,15 @@ static int ufs_mtk_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
 	return 0;
 }
 
+static int ufs_mtk_apply_dev_quirks(struct ufs_hba *hba,
+				    struct ufs_dev_desc *card)
+{
+	if (card->wmanufacturerid == UFS_VENDOR_SAMSUNG)
+		ufshcd_dme_set(hba, UIC_ARG_MIB(PA_TACTIVATE), 6);
+
+	return 0;
+}
+
 /**
  * struct ufs_hba_mtk_vops - UFS MTK specific variant operations
  *
@@ -301,6 +311,7 @@ static struct ufs_hba_variant_ops ufs_hba_mtk_vops = {
 	.setup_clocks        = ufs_mtk_setup_clocks,
 	.link_startup_notify = ufs_mtk_link_startup_notify,
 	.pwr_change_notify   = ufs_mtk_pwr_change_notify,
+	.apply_dev_quirks    = ufs_mtk_apply_dev_quirks,
 	.suspend             = ufs_mtk_suspend,
 	.resume              = ufs_mtk_resume,
 };
-- 
2.20.1

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