From: Chanho Park <chanho61.park@samsung.com>
Date: Mon, 18 Oct 2021 21:42:08 +0900
Subject: [PATCH] scsi: ufs: ufs-exynos: Support custom version of
ufs_hba_variant_ops
Git-commit: 533b81d674452d180c5801290fd84a5c7ddeaaeb
Patch-mainline: v5.16-rc1
References: jsc#PED-818
By default, ufs_hba_exynos_ops will be used. Add support for a custom
version of ufs_hba_variant_ops because some variants of exynos-ufs will use
only few callbacks.
Link: https://lore.kernel.org/r/20211018124216.153072-8-chanho61.park@samsung.com
Cc: Alim Akhtar <alim.akhtar@samsung.com>
Cc: Kiwoong Kim <kwmad.kim@samsung.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Hannes Reinecke <hare@suse.com>
---
drivers/scsi/ufs/ufs-exynos.c | 8 +++++++-
drivers/scsi/ufs/ufs-exynos.h | 1 +
2 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c
index d81a2eb894ad..b9257d72e9c8 100644
--- a/drivers/scsi/ufs/ufs-exynos.c
+++ b/drivers/scsi/ufs/ufs-exynos.c
@@ -1237,8 +1237,14 @@ static int exynos_ufs_probe(struct platform_device *pdev)
{
int err;
struct device *dev = &pdev->dev;
+ const struct ufs_hba_variant_ops *vops = &ufs_hba_exynos_ops;
+ const struct exynos_ufs_drv_data *drv_data =
+ device_get_match_data(dev);
- err = ufshcd_pltfrm_init(pdev, &ufs_hba_exynos_ops);
+ if (drv_data && drv_data->vops)
+ vops = drv_data->vops;
+
+ err = ufshcd_pltfrm_init(pdev, vops);
if (err)
dev_err(dev, "ufshcd_pltfrm_init() failed %d\n", err);
diff --git a/drivers/scsi/ufs/ufs-exynos.h b/drivers/scsi/ufs/ufs-exynos.h
index 2e72aabaa673..74f556d8a003 100644
--- a/drivers/scsi/ufs/ufs-exynos.h
+++ b/drivers/scsi/ufs/ufs-exynos.h
@@ -142,6 +142,7 @@ struct exynos_ufs_uic_attr {
};
struct exynos_ufs_drv_data {
+ const struct ufs_hba_variant_ops *vops;
struct exynos_ufs_uic_attr *uic_attr;
unsigned int quirks;
unsigned int opts;
--
2.35.3