scsi: ufs-mediatek: add apply_dev_quirks variant operation

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

Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Asutosh Das <asutoshd@codeaurora.org>
Cc: Avri Altman <avri.altman@wdc.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Cc: Bean Huo <beanhuo@micron.com>
Cc: Can Guo <cang@codeaurora.org>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Link: https://lore.kernel.org/r/1578726707-6596-3-git-send-email-stanley.chu@mediatek.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c
index 41f80eeada463294aa52a5924ca57cdee6d15cc8..8d999c0e60feebf08a9d95ddf53be8d52a0a3306 100644 (file)
--- a/drivers/scsi/ufs/ufs-mediatek.c
+++ b/drivers/scsi/ufs/ufs-mediatek.c
@@ -16,6 +16,7 @@
 
 #include "ufshcd.h"
 #include "ufshcd-pltfrm.h"
+#include "ufs_quirks.h"
 #include "unipro.h"
 #include "ufs-mediatek.h"
 
@@ -405,6 +406,15 @@ 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
  *
@@ -417,6 +427,7 @@ 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,
        .device_reset        = ufs_mtk_device_reset,